final exam animal science
Hamsters
General Characteristics
Friendly and active.
Thumping (foot stomping) is a normal behavior.
Description: Agouti color (light brown) is common.
Habitat and Behavior
Burrowing animals.
Crepuscular: Most active during twilight hours.
Adapted to extremes in temperatures.
Drink between 4-7 ml of water daily; can survive for 46 days without water.
Reproductive Behavior
Monogamous, typically forms pairs.
Establish breeding pairs by 10-12 weeks of age.
Maximum of 2 in a breeding pair.
Females reach sexual maturity at around 2 months of age.
Males reach sexual maturity at around 3 months of age.
Gestation period: 23-26 days; will breed again shortly after giving birth.
Ovulate every 4-6 days throughout the year.
Offspring
Litters consist of approximately 6 offspring.
Eyes open at 16-21 days post-birth.
Weaning occurs between 3-11 weeks.
Health Concerns
Common health issue: Ovarian cysts.
Research Uses
Implicated in studies of various diseases such as:
Brucellosis
Tuberculosis
Stroke
Leprosy
Rabies.
Gerbils
General Characteristics
Known as "little clawed warriors" due to their burrowing and active nature.
Reproductive Behavior
Monogamous pairs formed by 10-12 weeks of age.
Like hamsters, they establish very close breeding pairs.
Rats
History and Impact
Rats were significant carriers of the Black Plague in the 1300s, which led to the death of 1/4 of the world's population.
Common species include black and brown rats; black rats are known for their excellent climbing and jumping abilities.
Brown rats are larger than black rats and have shorter tails relative to their body size.
Most pet rats are referred to as "fancy" rats due to selective breeding.
Types of Fancy Rats
Hooded Rats
Recognized by a colored head with a dorsal stripe.
Caped Rats
Have colored heads but lack a dorsal stripe.
Masked Rats
Identified by distinct facial markings.
Behavior and Nature
Generally, good swimmers, capable of staying submerged for up to 5-6 minutes.
Curious, clean, and typically odor-free.
Territorial yet gregarious, as they are herd animals.
No aggression typically seen in males who grow up together.
Nocturnal behavior; engage in social grooming.
Health Concerns
Susceptible to respiratory diseases.
Common ailments include:
Tumors
Mites (infestations)
Monitoring and use of dust formulations to treat mites is recommended.
Reproductive Behavior
Sexually mature at 6 weeks of age; breeding capabilities arise quickly.
Litters typically weaned and separated at 4 weeks.
Heat cycle occurs every 4 days, with a gestation period of 21-24 days.
Mice
General Characteristics
Often utilized for medical and biological research.
Features include a pointed nose and a split upper lip.
Possess four toes on front paws and five on back.
Poor eyesight due to body shape.
Commonly known as a colony or collective group as "clan" or "mischief."
Sexual Dimorphism
Males referred to as "bucks," and females as "does."
Neonates are called "pinkies."
Overview of Animals Covered
Focus on Guinea Pigs and Ferrets
Guinea PigsBasic Characteristics
Family: Caviidae
Origin: South America (primarily used for meat production)
Common Name: Cuy
Lifespan: Live approximately 8-10 years
Vocalization: Very vocal, communicating through chirps, rumblings, purring, and squeaking.
Physical Description: Short, stocky body; four toes on front feet and three on hind feet; great vision, olfaction, and hearing.
Physical Varieties
Abysinian: Characterized by rosettes (ca-licks).
American: Short soft hair.
Peruvian: Long haired.
Silkies: Long hair that grows from the neck resembling a cascade.
Teddy: Short, dense hair.
White Crested: Features a distinct white cowlick on the head.
Ecology and Habitat
Cage Types: Open, low cages are acceptable.
Water Access: Provided via a bottle, they require constant access to water.
Diet
Diet Type: Herbivores; feed primarily on grains and seeds (e.g., oatmeal, crackers).
Nutritional Requirements: Need Vitamin C due to inability to synthesize it; drink a lot of water.
Feeding Behavior: Require daily brushing; may need occasional clipping or bathing.
Common Diseases
Respiratory Diseases: Susceptible to respiratory infections, including streptococcal infections leading to abscesses on noses.
Heat Stress: Vulnerable to heat; should be monitored closely in warm conditions.
Pregnancy Issues: Toxemia during pregnancy can be detrimental.
Malocclusion: Condition where teeth do not align properly, causing eating difficulties.
Mites: Can lead to further health complications if untreated.
Reproductive Biology
Sexual Differentiation: Designated male as "boar" and female as "sow".
Breeding Information:
Estrous Cycle: Cycles every 16 days.
Gestation Period: Ranges from 66 to 74 days, average around 68 days.
Litter Size: Typical litters can range from 2 to 76 pups, averaging 3-4 pups.
Nursing: Pups start consuming solid food at around 24 hours old; nurse for three weeks before separation at 1 week.
Family: Mustelidae (includes weasels, minks, polecats, etc.)
Physical Traits: Long, limber, slender bodies with short legs and small round ears; pointed noses and bright clear eyes; characterized by a musky odor that develops at puberty.
Lifespan: Average lifespan, yet specific details not provided in the transcript.
Ecology and Behavior
Habitat: Nocturnal; often found in forests and meadows of Europe.
Home Range: Typically ranges 200 yards from their home territory.
Usage: Previously used for rodent control and in research studies.
Diet
Diet Type: Carnivores; require a meat-based diet for health.
Optimal Diet: Commercial ferret food is ideal, but cat or kitten food can also be used.
Protein Requirements: Should contain about 35% animal protein.
Supplemental Needs: May require vegetable oils as they age.
Available Treats: Meat scraps, cracklings, fruit, red licorice, and ice cream can be given as occasional treats.
Housing and Care
Caging Needs: Ensure the housing is escape-proof and allows visibility to outside activities.
Housing Options: Can be kept outside year-round if properly housed.
Daily Requirements: Must include a cage, nest box, feeder, and water.
Common Diseases
Health Issues: Ferrets can face certain medical issues requiring awareness (specific conditions not detailed in the transcript).
Handling of Ferrets
Picking Them Up
Hold ferrets by the back of the neck to safely handle them.
Training Tools
D-Lingtone can be used as a training tool for ferrets.
Using objects or materials that ferrets are attracted to can help in training processes.
Deterrent Methods
D-Bitter apple can be utilized to deter ferrets from undesirable behaviors or areas.
Litter Box Training
Ferrets can be trained to use a litter box, consistent behavioral patterns help in this training.
Behavioral Traits
Ferrets enjoy being petted and can often perform tricks.
They have a tendency to steal items, commonly referred to as being 'thieves'.
Health Concerns
Ferrets are susceptible to various diseases including canine distemper.
They can become highly feral if not socialized properly.
Common health issues include ear mites and physical injuries.
Grooming Needs
Regular bathing is necessary to maintain cleanliness.
Cleaning ears is vital to avoid infections.
Nail trimming is also an important part of their grooming regimen.
Reproductive Traits of Ferrets
Puberty and Breeding
Ferrets reach puberty at around 10 months of age.
They are seasonal breeders, meaning their breeding is influenced by the length of the day.
Ferrets are classified as induced ovulators, meaning they ovulate as a result of mating.
Overview of Dogs
Domestication and Evolution
Dogs are mammals that feed their young with milk and are categorized as endothermic, meaning they maintain a constant body temperature.
Historical context indicates that people were nomadic during the period when dogs began to be domesticated.
Dogs are believed to have crossed the Bering Strait alongside human nomads, indicating a long history with humans.
The origins of domesticated dogs trace back to the area around Egypt.
Canine Terminology
Reproductive Terminology
Female dog: Bitch
Male dog: Stud
Young dog: Pup
Group of puppies: Litter
A mixed breed dog is referred to as Cur or mongrel, while purebreds are identified by breed classifications.
Female dogs give birth using the term Whelp.
Taxonomy of Dogs
Classification
Dogs belong to the genus Canis and the species familiaris.
There are between 100 and 800 dog breeds globally, with some breeds being virtually unknown outside their country of origin.
Physical Characteristics
Dogs are classified as predators with adaptations for efficient locomotion, good eyesight, a strong sense of smell, and notable bearing.
Variations in hair length and texture include:
Double coats: Short dense undercoat plus longer outer coat
Single-layer coats: Can be either long or short.
Hair Coat Colors
Basic hair colors include:
Black
Yellow (gold)
Blue
Brown (Chocolate)
Gray
White
Liver
Advanced Color Patterns in Dog Coats
Specific Patterns
Merle: Irregular dark blotches on a lighter background
Ticking: Small areas of light and dark mixed on the coat
Brindle: Dark hair with a striped pattern
Splashed: Irregular markings on the coat
Parti: Equal parts of white and another color
Piebald: Colorful markings superimposed on a white background.
Breed Organizations and Their Functions
American Kennel Club (AKC)
Established in 1884
Organizes dog events and promotes responsible dog ownership.
Classifies all recognized breeds into seven groups based on specific traits and characteristics.
United Kennel Club (UKC)
Founded in 1898
Focuses on the overall character and capabilities of dogs, promoting not just appearance but also performance.
Holds various competitions, including agility, obedience, weight pulling, and field trials.
Record Keeping for Dogs
Registration Records
Essential records include:
Breed
Name
Registration status
Permanent identification methods (tattoo, chip)
Breeder information and details about any transactions involving the animal
Vaccinations history
Shipping information
Breeding methods used
Pedigree Information
A pedigree is a record of genealogy, detailing a dog’s ancestry, which often entails separation of family lines in dog breeds.
Health Records
Complete health record including:
Vaccinations
Any adverse reactions
Weight history
Medical problems and surgeries
Dietary history and test results
Legal documentation concerning ownership.
Overview of Original Canine Gene Pool
Gene Pools and Types
Original canine breeds encompass diverse gene pools that contribute to the current classification of domestic dogs.
Feline Overview
Family: Felidae
Order: Carnivora
Scientific Name: Felis catus
Cat Facts
The love of cats is referred to as Ailurophilia.
Cats possess the ability to jump up to 6 times their own height.
Approximately 70% of their day is spent sleeping.
The equivalent of 1 cat year is roughly equal to 4-5 human years (specifically F-1 cat year).
Cats have between 230-250 bones in their bodies.
A group of cats is called a clowder.
The genome of a house cat is approximately 95.6% similar to that of a tiger.
There are more than 100 different breeds of cats.
Cats can clearly see up to 120 feet.
The oldest verified cat lived to be 36 years old.
The average lifespan of an indoor cat is about 15 years.
Cat Anatomy
Paws:
Cats have 5 toes on the front paws and 4 toes on the back paws.
Polydactyl cats have additional toes on either the front or back paws.
Claws:
Cat claws are self-sharpening.
Cats can climb down trees head first.
Cat Senses
Cats have highly developed senses.
Their sense of smell is unique, resembling human fingerprints in complexity.
Each cat has 32 muscles in each ear, allowing for independent ear movement.
Hunting and Behavior
Cats are expert hunters and typically hunt alone.
In the wild, they spend 6-8 hours a day hunting.
They possess agility due to their powerful, tightly bound muscles, excelling at running and jumping.
Eyes:
Cats have a higher number of rods in their retinas, allowing them to see better in low light.
They possess a nictitating membrane, also known as a third eyelid, which serves to protect and moisturize the eye.
Vertical pupils help enhance vision in darkness.
Cats are territorial; a cat's territory is defined as an area with specific boundaries.
As carnivores, meat is essential for their survival due to necessary nutrients.
Sleep and Play
Cats love cat naps; domestic cats typically sleep for approximately 12-18 hours a day.
Sleep is crucial as it allows them to restore their energy levels.
Cats are social creatures and engage in play; they require both mental and physical stimulation.
Playtime is vital for their wellbeing.
Grooming
Cats are clean animals; their tongues contain tiny abrasive papillae that assist in grooming.
They have 26 baby teeth and 30 adult teeth; deciduous teeth fall out around 3-4 months of age.
Dietary Considerations
Cats keep their heads level when chasing prey; this differs from dogs, who may not.
Cats can produce up to 100 different vocalizations.
They utilize their tails for balance, communication, temperature regulation, and self-expression.
Signs of high stress can include excessive grooming.
Toxic Foods for Cats
Onions, garlic, and chives can cause anemia in cats.
Milk can lead to stomach upset in some cats.
Grapes can lead to kidney failure.
Anatomy and PhysiologyAnatomy
Definition: Study of the structure and form of the tissues and organs that comprise the body.
Systems of the Body:
Integumentary
Skeletal
Muscular
Circulatory
Lymphatic
Digestive
Nervous
Urinary
Reproductive
Endocrine
Special Sense Organs
All systems must work in conjunction for overall health and functionality.
Integumentary System
Comprises skin, the largest and most visible organ of the body.
A newborn's skin accounts for nearly 25% of their total weight, while it represents about 2% of an adult's weight.
Functions of the Skin:
Acts as a barrier to prevent loss of water, electrolytes, and fluids.
Serves as a physical barrier to environmental threats.
Provides temperature regulation.
Serves in storage and pigmentation.
Engages in immuno-surveillance.
Produces vitamin D.
Facilitates sensory perception.
Involves excretory secretions.
Epidermis:
The top layer of the skin, comprising epithelial cells and keratin lipids.
Skin cells have a turnover rate of approximately 22 days in dogs.
AnatomySkin
Dermis
Deeper layer of the skin (not on the surface)
Composed of connective tissue
Polood (Possibly "Blood")
Lymph
Dogs and cats have a primary hair follicle.
This single pore is shared by 5-20 secondary hair.
Factors Influencing Hair Growth
Photoperiod
Ambient temperature
Nutrition
Hormones
Genetics
General health
Skeletal System
Functions:
Protection
Support
Attachment sites for muscles
Cats:
245 bones
Dogs:
319 bones
SkullCats
Large eye sockets
Large eyes
Jaw Structure:
Three major types:
Dolichocephalic
Narrow skull base
Elongated muzzle
Long neck
Mesocephalic
Medium ratio of skull base width to muzzle length
Brachycephalic
Broad skull base and short muzzle
Dogs
Teeth:
28 teeth as puppies
42 teeth as adults
Mandible and Maxilla:
Cats:
26 teeth as kittens
30 teeth as adults
Teeth
Carnassial teeth:
Fourth upper premolar and first lower molar
Function for ripping and tearing food
Fit together like scissors
Loss of Baby Teeth:
Timeline for when they lose their baby teeth not included in transcript.
Vertebral Column
Regions:
Cervical
Thoracic
Lumbar
Coccygeal
Formula:
7 cervical: 13 thoracic: 7 lumbar: 3 sacral and 0-23 coccygeal
Purpose:
Provide support
Provide stability
Provide protection
Sacral vertebrae fuse to form the Sacrum.
All vertebrae protect the spinal cord.
Attachment Sites:
Attachment site for muscles for locomotion and respiration.
Notable Vertebrae:
C1: Atlas
C2: Axis
Atlanto-occipital Joint:
Connects the skull to the spine.
Forelimb
Bones:
Scapula
Humerus
Radius / Ulna
Carpus
Metacarpals
Phalanges (P1, P2, P3)
P3 produces the claw.
Hindlimb
Bones:
Pelvis
Sacrum, ilium, pubis, and acetabular bones
Femur and acetabular articulation creates the ball-and-socket joint.
Note: Often abnormal in dogs with hip deformities.
Other Bones:
Tibia
Fibula
Tarsus
Metatarsals
Phalanges
Joints:
The joint between the lower femur and tibia is the stifle (knee).
Hind Limb Details
Patella (Knee Cap):
Embedded in tendons and ligaments.
Phalanges in Cats:
5 on front
4 on back
Polydactyly (more than five) is inherited and dominant.
Functions of Claws:
Necessary for traction, digging, climbing, and hunting.
Ligament from P2 to P3:
At rest, the claw is sheathed in the skin.
When extended, the ligament is rigid and unsheathes the claw.
Phalanges in Dogs:
4 functional digits on each foot and a dewclaw.
Many breeds do not have dewclaws on the hind legs.
Many breeds recommend that dewclaws be removed as close to birth as possible.
Dogs need claws for traction and digging.
Muscular System
Functions:
Muscles contribute to the outward appearance of the animal.
Essential for movement, circulation, posture, digestion, breathing, and many other functions.
Smooth Muscle
Definition: Smooth muscle is a type of non-striated muscle found in the walls of hollow organs.
Locations:
Digestive system: Involved in peristalsis and movement of food.
Reproductive system: Plays a role in uterine contractions and sperm transport.
Urinary system: Helps in the expulsion of urine from the bladder.
Respiratory system: Controls the diameter of airway passages.
Function: Involuntary control allowing for the automatic functioning of organs.
Cardiac Muscle
Definition: Cardiac muscle is found in the heart.
Control:
Controlled by the autonomic nervous system, which means it functions independently of conscious control.
Influenced by hormones, which can alter heart rate and strength of contractions.
Skeletal System
Overview: Skeletal muscles are voluntary muscles that are attached to bones by tendons.
Composition:
Make up approximately 1/3 to 1/2 of a dog or cat's body weight.
Classification by Function:
Extensor: Muscles that cause joints to straighten.
Flexor: Muscles that cause joints to bend.
Abductor: Muscles that cause limbs to move away from the body.
Adductor: Muscles that cause limbs to move toward the body.
Circulatory System
Components:
Heart
Arteries
Veins
Capillaries
Lymphatic vessels
Bone Marrow: Produces blood cells, critical in hematopoiesis.
Spleen: Filters blood and recycles iron.
Lymph Nodes: Filter lymph, playing an essential role in immune response.
Heart
Structure:
Chambers:
Atrium: Right and left atria receive blood.
Ventricle: Right and left ventricles pump blood out.
Valve System:
Tricuspid Valve: Between right atrium and right ventricle.
Pulmonary Valve: Between right ventricle and pulmonary artery.
Mitral Valve: Between left atrium and left ventricle.
Aortic Valve: Between left ventricle and aorta.
Blood Components
Erythrocytes:
Produced by bone marrow.
Contain hemoglobin, responsible for oxygen transport.
Blood Type: Surface proteins on erythrocytes determine blood type.
Thrombocytes:
Also known as platelets, involved in clot formation.
Leukocytes:
White blood cells involved in immune response.
Plasma:
Consists of 90% water and 10% solutes.
Lymphatic System
Components:
Lymph Nodes:
Located peripherally and centrally to the body cavity.
Produce lymphocytes and filter lymphatic fluid and waste products.
Lymphatic Vessels:
Pick up excess fluid and return it to the circulatory system.
Flow aided by gravity and muscle movement.
Empty into veins in the chest and abdomen.
Thymus:
Located in the cranial part of the chest.
Lymphocyte production, especially T-lymphocytes.
Spleen:
Located in the dorsal abdomen near the stomach.
Contains red and white pulp, involved in filtering blood and immune function.
Respiratory System
Components:
Nostrils
Nasal Turbinates
Pharynx
Epiglottis
Trachea
Bronchi
Bronchioles
Alveolar Duct
Alveoli
Larynx (with vocal cords)
Function:
Controlled by the medulla oblongata.
Responsible for gas exchange; oxygen intake and carbon dioxide removal.
Breathing Processes:
Inspiration: Active phase of inhalation, primarily using intercostal muscles and diaphragm.
Expiration: The phase of exhalation, often a passive process but can be active during forceful breathing.
Nervous System
CNS (Central Nervous System)
Brain
Spinal Cord
PNS (Peripheral Nervous System)
All nerves outside the brain and spinal cord
Nerves
Autonomic Nerves
Connect to glands, blood vessels, heart, smooth muscles
Relates to the gastrointestinal system, digestive system, and urinary system
Digestive System
Urinary System
Kidneys
Renal Cortex
Area outside nephrons, which are the filtering units
Nephrons
Renal Medulla
Voluntary Nerves
Connect to muscles other than those of the heart and autonomic functions
Kidneys
Ureters
Bladder
Urethra
Special Senses
Ocular Senses
Eyeballs
Located in the orbits
Glands that produce tears:
Lacrimal Glands
Produce tears
Lacrimal Ducts
Drain away tears and debris from the eyes
Tapetum Lucidum
Provides eye shine
A reflection of light
Auditory Senses
Dogs can detect sounds that humans cannot hear
Pinna
External ear structure
Ear Hap
Tympanic Membrane
Also known as the eardrum
Ossicles
Transmit sounds from the air to the cochlea
Cochlea
Fluid-filled structure involved in auditory processing
Olfaction
Scent is crucial to dogs in relationships
Dogs have over 200 olfactory receptors
Vomeronasal Organ (Jacobson's Organ)
Fluid-filled sacs located above the roof of the mouth
Capable of detecting scents in concentrations a million times smaller than humans can perceive
Taste
Involves specialized papillae known as taste buds
There are less than 500 taste buds in dogs
Touch
Best developed in young individuals
Involves sensations of warmth and tactile contact
Important for social interactions
Examples include licking
Vibrissa (whiskers)
Specialized touch receptors
Paws
Have sensitivity through touch receptors
Dendocrine System
Consists of glands and other tissues that produce hormones
Hormones
Defined as chemicals that are carried by the circulatory system to target receptors
Birds
Definition: Birds are two-legged, egg-laying, warm-blooded animals with feathers and wings
Normal body temperature averages 106°F
Feathers
All birds have feathers; some are capable of flight while others are not
Examples of Non-flying Birds:
Ostrich
Penguin
Emu
Chickens
Turkeys
Peacock
Zoology of Birds
Branch of biology studying birds
Birds classified into taxonomic orders based on shared physical characteristics and evolutionary relationships
Taxonomy
Terminology in Birdkeeping
Raising birds in captivity
Fledging
A young bird that has left the nest but is not fully independent
Bird Terminology
Oyster Shell
Ground oyster shell is fed to birds (layer) to support shell integrity
Pterylae
Areas of skin on birds from which feathers grow
Aphery
Areas between feathered spaces
Calamus
The hollow base of a feather (quill)
Vane
The whole feather minus the calamus
Rachis
The shaft of the feather bearing the web
Barbs
Processes attached to the rachis of a feather
Barbules
Small pointed processes off a barb
Contour Feathers
Shape of bird; extends beyond the body
Primary and Secondary Feathers
Blood Feather
A developing feather with blood supply that gives nutrients during growth
Types of Bird Feathers
Down Feathers
Definition: Soft, fine feathers used for conserving body heat.
Plume Feathers
Definition: Short hair-like feathers that cover the bird's body.
Powder Down Feathers
Definition: Feathers that have tips which break off as they mature, releasing a powder used for waterproofing.
Terminology Related to Feathers and Birds
Remex
Definition: A singular term for a quill or flight feather of a bird wing.
Remiges
Definition: The plural form of remex.
Uropygium
Definition: The posterior part of a bird's body from which the tail feathers grow.
Molting
Definition: The process by which birds periodically shed part or all of their coat or feathers.
Bird Bill Structure
Rhamphotheca
Definition: The horny covering of a bird's bill.
Culmen
Definition: The dorsal ridge of the beak, measured to help identify species.
Bird Skeletal System
Sternum
Definition: Forms the keel, providing structure for the large attachment of flight muscles.
Types of Birds
Categories of birds significant for study:
Cockatiels
Finches
Lovebirds
Canaries
Budgerigars
Parrots
Macaws
Conures
Cockatiels
Location: Native to Australia
Size: Approximately 12 inches long
Lifespan: About 18-30 years
Breeding Information:
Incubation period: 25-26 days
Fledgling period: 65-66 days
Diet: Primarily consists of cereal grains, fruits, and green foods.
Physical Characteristics:
Crest Feather: Located on top of their head, used for communication and as a defense mechanism.
Finches
Habitat: Native throughout the world
Breeding Information:
Incubation period: 12 days
Fledgling period: 18-21 days
Males are known for singing.
Physical Characteristics:
Bear relatively large bodies with somewhat long beaks, adapted to their diet.
Diet: Small cereal grains.
Lovebirds
Habitat: Short-tailed parrots from Ethiopia
Vocalization: Known not to sing
Diet: Similar to other birds, comprising cereal grains, fruit, and green food.
Canaries
Origin: Canary Islands
Breeding Information:
Incubation period: 14 days
Fledgling period: 14 days
Known For: Their singing
Diet: Sees and green foods.
Budgerigar (Budgies or Parakeets)
Location: Native to Australia
Communication: Known as ‘talkers’
Sexual Dimorphism: Males have a blue cere while females have a grey cere
Size: Small, about 7 inches long
Physical Features: Head contains yellow with black lines.
TaxonomyPsittaciformes
Definition: An order of birds including parrots, parakeets, macaws, and cockatoos, known for their vibrant colors and intelligence.
Importance: Common companions and pets among birds.
Dietary Needs of Parrots and Related Birds
Key Components of Diet:
Non-dried vegetables with Juice.
Specific foods include:
Green peas
Fresh corn
Berries
Nectar
Carrots
Cabbage
Bean sprouts
Seeds/nuts
Fruits/vegetables
Eggs of other birds
Snails
Insects/bugs
Lories
Loricets
Definition: Brush-like tongues used to lap up nectar and pollen from flowers.
Diet in Captivity: Typically fed a nectar mixture and certain fruits.
Origin: Native to Australia
Cockatoos
Physical Characteristics:
Typically have a recognized tuft or crest.
Heavier bird with a red body and a blunt tail.
Slimmer with a tapered body and green coloration.
Intelligence: Excellent pets known for their intelligence and ability to mimic sounds and words easily.
Diet: Similar to other birds, including:
Fresh fruits and vegetables
Seeds/nuts
Cereal grains
Processed pelleted feed
Sources of protein such as cooked eggs and lean meat/legumes
DConures
Diet: Fresh fruits, vegetables, seeds, nuts, and pelleted food.
Lifespan of Birds
Parrots: 50-60 years
Budgies: 5-12 years
Canaries: 6-10 years
Macaws: 75-100+ years
Digestion in Birds
Crop: Functions as a holding vessel for food.
Stomach: Comprises two parts:
Proventriculus: Glandular and chemical digestion occurs here.
Gizzard: A muscular organ that grinds food; food can move back and forth between the proventriculus and the gizzard.
Cloaca: The terminal region of the digestive, urinary, and reproductive tracts; site for defecation, urination, fertilization, and egg-laying.
Grooming Requirements for Birds
Cleaning Frequency: Cages should be thoroughly cleaned every 2-3 days.
Nails: Require perches, toys, and trimming to maintain proper length.
Beaks: Birds need toys, mineral blocks, and lava rock to help with beak maintenance.
Feathers: Trim the flight feathers if necessary.
Bathing: Use lukewarm water for bathing.
Avian Reproduction
Female Anatomy Components:
Ovary
Oviduct
Infundibulum: First part of the oviduct
Magnum: Second part, where the egg enters.
Isthmus: Third part, where the egg develops a shell.
Uterus: Fourth part.
Vagina: Fifth part.
Cloaca: Final area where the products exit.
Male Anatomy Components:
Testes: Stay in the body cavity.
Ductus Deferens
Cloaca:
Papilla: Located in the male cloaca and transfers sperm to the female; sperm is stored in the folds of the oviduct and is viable for up to 30 days.
Incubation: The egg typically carries an embryo that grows for approximately 21 days in most species post-laying.
Toxicology in Birds
Toxic Substances Include:
Lead
Zinc
Nicotine
Salt
Chocolate
Coffee
Cocoa
Avocado (contains persin)
Aviaries and Bird Housing
Essentials for Aviary Containment:
Nest Box: Necessary for reproductive birds.
Building Supplies: To create suitable nests.
Perches: Essential for resting.
Waterers: Needed for hydration.
Toys: Important to keep birds entertained.
Bird Size Consideration: The larger the bird, the heavier the material that is necessary.
Safety: Ensure that materials are free from sharp edges.
Preference: Birds typically do not like slippery plastic materials.
Exercise Beak Maintenance: Keep beaks trimmed and engaged to prevent boredom.
Aviary Specifications
Water Options:
Glass, ceramic, or stainless steel are preferred for waterers.
Gravity-fed types are best for hydration.
Environmental Considerations:: Aviary should be free from drafts and at a constant temperature.
Cage Size Considerations: Ensure the cage is big enough for proper bird movement and easy to clean, while also being affordable.
Nutrition for Birds
Daily Consumption: Small birds may eat up to 1/3 of their body weight daily.
Dietary Composition:
Protein: Approximately 18-20%
Fat: Around 5%
Larger birds such as chickens may consume 20-28% of their body weight daily.
Diet Variation: Most birds primarily eat seeds, although nectar or pollen-based diets exist for some species (e.g., nectar-feeding birds).
Cereal Grains: Include canary, millet, corn, and oats.
Increased carbohydrates in cereal grains contribute to overall caloric intake.
Increased fat may decrease the need for carbohydrates.
Feeding Young Birds: Soak seeds for 24 hours in warm water to soften for easier consumption.
Food Safety: Remove any uneaten food from the aviary.
Nutrition Sources for Birds
Plant Materials: Such as chickenweed, dandelion leaves, and carrot tops.
Grit: Necessary for parrots for digestion.
Types of Grit:
Soluble Grit: Oyster shell
Insoluble Grit: Crushed granite
Cuttlefish bone as a calcium supplement
Other Food Sources: Fruits, vegetables, and nectar and pollen mixes intended for lorikeets and lories.
Training and Handling Birds
Training Approach: Must be calm and slow throughout the process.
Time Allocation: Recommended lessons should be around 15 minutes long.
Young vs. Older Birds: Younger birds tend to learn more easily than older species.
Instructional Consideration: One person teaching may enhance learning efficacy, as females generally learn faster than males.
Clipping
The procedure for clipping involves making cuts across the primary and secondary feathers.
Specific details include:
D-Cut across the primary and secondary feather.
D-lean toward the outermost primary feather.
Diseases and Ailments
A healthy bird should sleep on one leg.
Characteristics of an unhealthy bird:
A bird with fluffed feathers.
Presence of runny feces, indicating illness (denoted as ‘Ronny feces’).
Types of Illnesses
Ascaride – referred to as rove worms.
Cold – specific symptoms are not provided.
Beak disorders – often related to vitamin/mineral deficiencies.
Egg Binding – this occurs when there is an obstructed uterus.
Gout – related to poor kidney function and an increase in uric acid, leading to enlarged and stiff joints.
Avian Influenza – a viral infection that affects birds.
Chlamydiosis – also known as Parrot fever or psittacosis:
Is zoonotic (can be transmitted to humans).
Spread by direct contact with infected birds.
Mites - specifically, Sarcoptes mites.
Newcastle Disease – also called avian distemper – is noted as very serious.
Pacheco’s Disease – a viral infection leading to hepatitis and herpetic symptoms.
Pullorum - a disease caused by salmonella.
RabbitsClassification
Order: Lagomorpha
Genus: Oryctolagus cuniculus
Rabbits were originally classified as rodents due to their teeth structure, but they differ significantly from rodents.
Domesticated by monks in France for food.
Facts and Characteristics
Found on every continent except Antarctica.
Remarkable features include:
Nearly 360° vision.
Excellent sense of smell.
Excellent sense of hearing.
Communicate through their language.
Physiological Traits:
Rabbits cannot vomit and are considered pseudo-ruminants.
They chew approximately 120 times a minute.
Their behavior is predominantly crepuscular (active during dawn and dusk).
Known for being very clean animals.
Breed approximately 3-4 times a year with only around 15% of those born surviving to one year old.
They sweat through their foot pads.
Communication includes body language and soft vocalizations; excessive grooming may occur.
An excited rabbit may perform a behavior called "binky".
Habitat and Lifestyle
Wild rabbits live in structures known as "warrens".
Domestic rabbit types include:
Domestic breeds (e.g., Harlequin, Angora, black-tipped ears).
Cottontail rabbits.
Physical characteristics of rabbits include:
Teeth: unique dentition with 4 incisor teeth on the front feet and multiple on the hind feet.
Dewclaws are present for certain functions.
Usage and BenefitsReasons for Raising Rabbits
Rabbits are raised for various reasons such as:
Meat Production:
Often referred to as the “other white meat.”
Nutritional aspects:
High in protein.
Low in cholesterol.
Low in fat.
Low in sodium.
Very palatable.
Fur and Wool Production:
Used for clothing, cat toys, coats, hats, and gloves.
Four major coat types:
Normal.
Rex – characterized by a short, standing coat at a right angle to the body.
Angora – softer, finer, warmer, and lighter.
Satin – a mutation of the normal coat featuring sheen and smoothness.
Classification of Breeds:
70 breeds of domesticated rabbits with 48 recognized by the American Rabbit Breeders Association (ARBA).
Breeds are divided into five body types including upright (cylindrical) and high head mount.
ReproductionBreeding Information
Female Reproductive System
Can achieve puberty at:
6-12 months for small breeds.
8-18 months for large breeds.
Pregnancy detection methods include:
Ultrasound at 10-15 days gestation.
Blood tests at 24-30 days (detecting relaxin).
Palpation around 20-30 days post-breeding.
Radiographs also at around 20 days.
Reproductive Cycles
Reproductive Cycles Characteristics:
Rabbits are seasonal breeders, typically having 1 or more polyestrous cycles during certain parts of the year.
The estrous cycle refers to the recurring physiological series of events:
Dairy animals, pigs, and humans are categorized as seasonally polyestrous.
Some species have multiple estrous cycles during specific periods (e.g., horses, sheep, cats).
Monoestus or Biestrus refers to species that cycle only one to two times a year (e.g., dogs, wolves, foxes, bears).
Anestrus – a period of no estrous cycles, which may last approximately 5 months but can vary widely (3-9 months) due to factors such as pregnancy, nursing, seasonal change, or poor nutrition.
Estrous Cycle
Proestrus
Precedes estrus
Average duration: 4.9 days
Hormonal Changes:
Follicle Stimulating Hormone (FSH) is released
Luteinizing Hormone (LH) increases
Effects:
Development of follicles which produce estrogen
Tissues swell due to edema and increased vascularity
Behavioral Changes during Proestrus
Increased restlessness
Frequent urination
Attempts to escape confinement
Playful interactions with male dogs
Blood discharge observed
Vulva enlargement noted
This stage indicates a period of sexual receptivity
Estrogen levels peak 1-2 days before estrus begins and decline during estrus
Progesterone levels rise as preparation for possible pregnancy
Diestus (Metestrus)
Duration: Approximately 2 months
Functional Corpus Luteum (CL) present
Increased progesterone levels
Ends with whelping if pregnancy occurs
Reproductive AnatomyMale Anatomy
Testes
Descend within a few days of birth
Epididymis
Vas deferens
Spermatocole
Strohm
Prostate Gland
Only accessory sex gland present in dogs
Penis
Prepucel
Seminiferous Tubules
Site of sperm cell production
Sertoli Cells
Function: Convert testosterone to estradiol critical for spermatogenesis
Leydig Cells
Produce testosterone
Os Penis
A small bone present in the penis
Bulbus Glandis
Erectile tissue that swells during mating
Female Anatomy
Ovaries
Small, bean-shaped organs that produce ova and estrogen
Oviducts
Small, thin tubes where fertilization occurs
Implantation of the embryo typically takes 7-21 days
Infundibulum
Structure that “catches” the ovulated eggs
Uterus
Small, hollow organ shaped like the letter "Y" with two horns
Cervix
Fibrous muscular structure separating the uterus from the vagina
Vagina
Organ of copulation and site of semen deposition
Vulva
External genitalia
Migration and Implantation
Pregnancy
Natural Insemination
Artificial Insemination
Digital placement
Transcervical insemination
Surgical insemination
Parturition
Also known as whelping
Pre-Labor considerations
Positioning for delivery
Necessary supplies for postpartum care
Reproductive Problems
Failure to observe estrus
Abnormal estrus patterns
Failure to conceive
Dystocia
Obstacles in the delivery process
Pyometra
Uterine infection
Eclampsia
Often referred to as milk fever
Cryptorchidism
Presence of retained testis in the abdomen
Prostatic Diseases
Terminology
Female Dogs: Bitch
Male Dogs: Stud
Young: Pup or Puppies
Term used for giving birth: Whelping
Puppies
Initial behaviors include eating and sleeping during the first two weeks
Typical behaviors in the first two weeks:
Activation of sleep patterns
Pink gums indicating health
Weight gain is critical for development
Quiet demeanor noted
Good muscle tone, plump and firm body evident
Parturition Process for Dogs
Three Stages of Parturition
Stage 1: The uterus begins contraction leading to cervix dilation
Stage 2: Active labor occurs where pushing and fetal circulation is essential for delivery
Stage 3: Passage of fetal membranes (placenta) occurs after delivery
Line Reproduction
Sexual maturity occurs between 6-9 months.
Long-haired breeds mature between 11-21 months.
Breeding age ranges between 1.6 to 7 years of age.
Cats are seasonally polyestrus.
Induced ovulators means they will continue to cycle until they are bred.
Definitions
Queen: Female cat.
Tom: Male cat.
Queening: The process of giving birth in cats.
Kittens: The name for baby cats.
Reproductive Cycle
Most cats begin to cycle at a weight of 5-6 pounds.
This weight correlates with the development of mammary glands.
Estrous cycling typically begins in January-February and usually ceases in October-November.
These cycles are influenced by photoperiods (daylight length).
Estrous Cycle Overview
Anestrus: Lock period occurs from December to January.
Proestrus: Lasts 1-2 days, characterized by increased estrogen and behaviors such as rubbing.
Estrus: Vocabulary encompasses several behaviors:
Vocalization, flagging, and elevated vulva (lordosis).
Rolling, rubbing, and treading behaviors last 2-19 days.
Average duration is about one week.
Diestrus: This occurs in the queen that has ovulated.
Progesterone is secreted for 40-50 days if not bred.
Progesterone secretion extends to 60 days if bred.
Post-Estrus: This is the period between estrus cycles.
Duration is approximately 8-10 days.
During this time, estrogen levels drop.
Male Anatomy
The penis is located ventrally to the scrotum and directed backward.
Testes descend into the scrotum at the time of birth.
Accessory sex glands include:
Prostate gland
Bulbourethral gland
Breeding Behaviors
The queen can mate multiple times with the same or different toms.
Behaviors during mating include:
Mounting and neck biting.
The male cat quickly completes mating.
The queen may scream loudly and leap away, and may not mate again for several hours.
Artificial Insemination
Toms can be trained to ejaculate into an artificial vagina.
Electro-ejaculation can be performed under anesthesia.
Frozen semen can be used for insemination.
To inseminate the queen, elevate her rear legs for 10 minutes and give hormonal injections to induce ovulation.
Pregnancy Overview
Fertilization occurs in the oviduct where the ova remain for 5-6 days.
Implantation in the uterus occurs 11-14 days post-fertilization.
Gestation typically lasts between 62-67 days.
The average gestation period is between 61-63 days.
Pregnancy Detection Methods
Palpation: Can detect pregnancy at 17-26 days.
Ultrasound: Useful for detecting pregnancy as early as 14 days.
Radiographs: Can show beating hearts at approximately 21 days.
Parturition (Giving Birth)
Dystocia (difficult birth) is uncommon in cats.
Queens display nesting behaviors and experience a drop in temperature prior to giving birth.
During parturition, the allantochorion membrane (water bag) usually breaks at birth.
Kittens can be delivered headfirst or hindleg-first; both are normal.
Post-Parturition
Queens do not leave their kittens for the first 11 days postpartum.
It is important to keep food, water, and a litter box nearby.
Little or no discharge should be present after giving birth; if there is depression, anorexia, or fever, a veterinarian should be consulted.
Peak milk production occurs between days 20-30 post-partum.
A healthy queen typically requires 2-4 times more food during this period until the kittens can eat solid food.
Kitten Behavior
Kittens will crawl toward the queen for warmth.
They will bounce their heads until they locate a nipple and should begin nursing within a few minutes.
Kittens should be quiet and restful; determining their sex at birth can be difficult.
Estrous Cycle Prevention
Spaying: Surgical removal of ovaries and uterus (Ovariohysterectomy).
Can be performed as early as 3 months of age.
Benefits of Spaying for Females
Reduces the chances of mammary cancer.
Prevents uterine cancer and uterine infections.
Prevents unwanted pregnancies and visits from male cats.
Lowers the chance of developing diabetes.
Estrus does not interfere with showing.
Risks to Female Cats
Possible complications from surgery include:
Anesthesia risks and surgical complications.
There may be a tendency to gain weight due to lack of caloric demand during estrus.
Male Neutering
Castration: Surgical removal of testes (Orchiectomy).
This can also be performed as early as 3 months of age but is better to wait until 6 months for optimal growth.
Benefits of Neutering for Males
Prevents testicular disorders and epididymal disorders.
Reduces the risk of perineal hernias.
Decreases roaming and mounting behaviors.
Risks of Surgical Procedures
Surgical risks include:
D-Surgery
D-Weight gain
Alternatives to surgery:
Testicular Sclerosing agents
Neutersol:
A zinc compound that results in the atrophy of the testicle
99% effective with little or no side effects
Characteristics of Reptiles
Reptiles are:
Cold-blooded (ectothermic) vertebrates
They breathe air through lungs
Have bony skeletons
Orders of Reptiles
Testudines (turtles, tortoises, terrapins)
Characterized by:
Short thick body encased in a shell
Serpentes (snakes, including pythons and boas)
Characterized by:
Long body tapering to a tail
Squamata (lizards and iguanas)
Characterized by:
Body also tapers to a tail
Crocodilia (crocodiles, alligators, caimans, gharials)
Characterized by:
Long body tapering to a tail
Groups of Snakes to Know
Non-venomous snakes:
Corn snakes
King/milk snakes
Rat snakes
Garter snakes
Venomous snakes:
Vipers: cause tissue damage
Elapids: have fixed fangs and inject venom directly
Colubrids: have fixed fangs located in the rear
Characteristics of Snakes
Physical characteristics:
Smooth, scale-covered skin
Length: 12" to 20" depending on species
Various colors and patterns
Lacking eyelids
Movement of Snakes
Snakes can move in four basic ways:
Serpentine: sliding along a surface as the scales on the underside project outward, muscles contract to move forward.
Concertina: throwing themselves forward in a series of S-shaped curves.
Sidewinder: moving in a sideways manner across sandy surfaces.
Snake Anatomical Features
Brille or spectacle: a modified scale that covers and protects the eye; snakes cannot close their eyes.
A forked tongue that is sheathed at the front of the mouth:
Trachea is directly behind the tongue sheath allowing snakes to breathe while holding large prey in their mouths.
Behavioral Characteristics
Nocturnal snakes: active at night.
Diurnal species: active during the day.
Snakes generally do not have good eyesight:
Pupil shape:
Most poisonous snakes have oblong pupils with peaked ends (slit-like).
Non-venomous snakes typically have round pupils, with exceptions such as the coral snake which is venomous but has round pupils.
Habitats and Lifestyle of Snakes
Arboreal species: spend most of their lives in trees.
Characterized by:
Large protruding eyes.
Tapered snouts.
Binocular vision for depth perception.
Terrestrial snakes: primarily found on land and often near water sources.
Habitat includes various environments:
Deserts, plains, mountains, and meadows.
Anatomy of All Snakes
Lung structure:
Elongated right lung; left lung is rudimentary and ends in an air sac.
Heart structure: 3-chambered heart.
Digestive organs: elongated liver and kidneys.
Physiological Characteristics
Snakes are ectothermic (poikilothermic) animals:
Body temperatures vary with the environment.
No heat is generated from body functions, leading to decreased body temperature in cooler environments.
Ideal temperature is approximately 80°F.
Temperature influences:
Digestion
Reproduction
Immunology
Thermal Regulation Methods
Snakes will not eat if too cool. To regulate temperature, they use:
Low wattage incandescent bulbs to warm the snake but not burn them.
Hot rocks buried in their habitat.
Heat tapes, which are optimal for maintaining temperatures.
50% humidity is optimum for snake health.
Characteristics of Snakes
Solitary by Nature
Snakes are typically solitary creatures, preferring to live and hunt alone.
Feeding Behavior
Some snakes exhibit cannibalism, eating other snakes.
For example, larger kingsnakes (Lampropeltis getula) are known to eat smaller kingsnakes.
Secretive Nature
Snakes tend to be secretive, staying hidden to avoid predators and to ambush prey.
Vivarium Construction for Snakes
Cage Requirements
Vivariums must have tight lids to prevent escape and ensure security for the snakes inside.
Size of Vivarium
The vivarium should be large enough for the snake to fit diagonally, as this indicates adequate space for movement and comfort.
Substrates for Vivarium
Various substrates can be used in a vivarium for snakes:
Wood Shavings: Offers a natural appearance and absorbs waste.
Newspaper: Cost-effective and easy to replace.
Brown Paper: A less common substrate that can serve a similar purpose as newspapers.
Carpet: Can be used for vivarium, especially for desert species.
Environmental Enrichment
Vivariums should mimic natural environments, including climbing materials like branches for arboreal snakes.
Reproduction in Snakes
Modes of Reproduction
Viviparous: Species that give birth to live young.
Oviparous: Species that lay eggs.
Ovoviviparous: Species that retain eggs inside their bodies until they hatch, giving birth to live young that emerge from eggs.
Jaw Structure of Snakes
Anatomical Features
The upper jaw of a snake is not fused at the front but is attached to the braincase by muscles, ligaments, and tendons, allowing significant mobility in multiple directions.
The upper jaw is connected to the lower jaw through the quadrate bone, functioning like a double-jointed hinge, enabling the lower jaw to dislocate.
This dislocation allows snakes to open their mouths as wide as 150 degrees, essential for consuming prey larger than their heads.
Independent Movement
Unlike humans, the bones on the sides of a snake's jaws are connected by muscle tissue, allowing the sides to move independently.
Venomous Snakes
Types of Venom
Neurotoxins: Affect the nervous system, often leading to respiratory failure due to the paralysis of nerve centers.
Cardiotoxins: Deteriorate cardiac muscle tissue, potentially leading to heart failure.
Hemotoxins: Cause the rupture of blood vessels, leading to internal bleeding and other complications.
General Information about Snakes
Pythons
Most pythons grow to be around 5 feet or less in length, exhibiting a generally non-aggressive demeanor.
They rarely bite unless threatened or stressed, and while their bites can inflict damage, they can be tamed with care.
Pythons are primarily terrestrial but can swim well, even if they do not spend a lot of time in water.
Diet: Pythons are carnivorous, feeding on a variety of prey, typically mammals and birds.
Transcript Notes on Snake Diet and CareOverview of Class Topics
Focus: Snakes and their dietary needs.
Importance of understanding snake classifications and the diet based on the species and size.
Types of Snakes
King and Milk Snakes
Often confused with the poisonous Coral Snake due to similar color patterns.
Coral Snake Distinctions:
Color rings on the Coral Snake go all the way around its body.
The coloration on the underside matches the top side, which is a significant identifying marker.
Similar species have color rings only on top, making this a less reliable identification method.
Snake DietFood Availability and Size Dependency
The diet of snakes depends on their size and the availability of food sources.
Common prey items include:
Mice: Particularly in the form known as 'pinkies' (newborn mice).
Insects
Rats
Worms
Fish
Frogs
Other Rodents
Rabbits
Other Snakes: Cannibalism is observed in certain snake species.
Nutritional Requirements
Snakes require supplementation of vitamins and minerals:
Prey animals can be 'gut-loaded' with a diet rich in vitamins and minerals to ensure the snake receives these nutrients when consumed.
Feeding Practices
Frozen food must be properly prepared:
Thaw and warm frozen prey to room temperature before offering to the snake.
Snakes typically swallow their prey whole.
In stressful situations, snakes may regurgitate food.
Feeding frequency options include:
Generally feed every 1-2 weeks for most snakes,
Frequency can be reduced depending on the individual snake’s needs, age, and activity level.
Record Keeping
Keeping notes on feeding:
Document when the snake was fed, if it consumed the prey immediately, and its behavior afterward.
Weather Considerations
Note on cold weather:
Classes mention preparing for cold weather, affecting snake behavior and feeding schedules.
Handling Snakes
Proper handling techniques are crucial to ensure both the safety of the handler and the well-being of the snake.
Grasp the snake directly behind the jaw and hold firmly yet gently.
Support any body weight with your arms to prevent injury to the snake.
Do NOT pick them up by the tail. Picking a snake up by its tail can cause physical harm and distress.
Carry them in a cloth bag such as a pillowcase to ensure they are secure and comfortable during transport.
Keep them warm while in transport to avoid stress or shock.
If necessary, use hooks or tongs to pick up and/or move the snake, ensuring minimal handling and maximum safety.
Ecdysis in Snakes
Ecdysis refers to the process of shedding skin, an essential part of a snake’s growth.
Ecdysis (ek-duh-sis) involves the shedding of the outer layer of skin and is a normal physiological process.
A normal, healthy snake sheds several times a year, which is vital for its growth and health.
During the shedding process, snakes will exhibit a bluish tint ("blue") before shedding, indicating that they are about to shed their skin.
The actual shedding can occur within a few hours to a couple of days depending on various factors, including humidity and the snake’s health.
Indicators of Ecdysis
The process of shedding involves several specific indications and symptoms:
The brille, or spectacle (the protective scale covering the eye), begins to cloud over and becomes opaque, signaling that shedding is imminent.
The snake may exhibit snout rubbing, where the shed begins at the nose, indicating it is likely in the early stage of shedding.
A period of dormancy may occur as snakes prepare for the shedding process, often showing decreased activity levels.
An increased need for water is also common as snakes may stay hydrated in preparation for shedding.
Implications of Improper Shedding
If a snake does not shed properly, this could indicate underlying health issues, which can include:
Nutritional problems, which can stem from inadequate diet or vitamin deficiencies.
Respiratory disease, such as pneumonia, can cause a snake to struggle during shedding.
Presence of parasites, which can impact a snake’s overall health, affecting the shedding process.
Iguanas and Lizards
Iguanas and lizards fall under specific taxonomic families essential for identification and study:
Family Gekkonidae includes Geckos, which are distinguished by their unique adaptations.
Family Iguanidae includes Iguanas, known for their distinct appearance and habitat preferences.
Cold Weather Effects
Environmental factors such as cold weather significantly affect snake behavior and health. Proper understanding of these effects is critical for anyone caring for or studying snakes.
Cold temperatures can lead to decreased metabolic rates and activity levels in snakes.
Snakes may require special care during colder months to ensure they remain healthy and active, which may include maintaining a suitable habitat temperature
Overview of Geckos
Introduction to Geckos
Description: Geckos are a diverse group of lizards found in warm climates around the world, particularly in tropical and semi-tropical regions.
Physical Characteristics
Toes
Geckos possess five toes on each foot.
Unique toe pads that allow for climbing and sticking to surfaces.
Eyes
Large eyes with vertical slit pupils for better night vision.
No eyelids; geckos clean their eyes with their tongues, except for Leopard geckos, which have movable eyelids.
Vocalization
Geckos can produce sounds ranging from soft, high-pitched squeaks to loud barks.
Behavior and Ecology
Diet
Primarily insectivorous; however, some species also consume nectar.
Example Species:
Leopard Geckos: Commonly kept in captivity; larger size and unique appearance.
Madagascar Geckos: Also popular among pet owners.
Habitat and Environment
Distribution
Geckos can be found in various environments ranging from forests to deserts.
Major species found in: Iran, Afghanistan, Pakistan, and India.
Habitat Requirements
Minimum aquarium size: 20 gallons, suitable for 3-4 geckos.
Temperature regulation:
Ideal daytime temperature: 90°F under heat lamps.
Nighttime temperature drop to approximately 70°F.
Recommended substrates: Sand or newspaper.
Include hide boxes for sleeping and avoiding conflicts between geckos.
Adaptations
Toe Pad Structure
Gecko toe pads exhibit a unique adaptation:
Composed of setae (see-tah), which are microscopic hairs made from stiff hydrophobic keratin.
Setae act as angled springs that enable the gecko to adhere to smooth surfaces using van der Waals forces, eliminating the need for adhesives.
Benefits of toe pad design:
Does not mar or damage surfaces, allowing for easy removal and does not collect dirt.
Implications and Considerations
The study of gecko adhesives has potential implications in materials science, particularly in the development of advanced adhesives and climbing technologies.
Ethical considerations regarding the keeping of geckos as pets include ensuring proper habitat conditions and preventing fighting among males.
Class Overview
Current Course Topic: Careers in the Fashion Industry (Course: itaa-17170-nguyen)
Breeding Information
Breeding Practices:
Male to Female Ratio: 1 male to 3-4 females.
A male is housed with several females to optimize breeding.
Egg Production:
Females will produce multiple clutches of eggs in a laying box.
Ideal incubation temperature: approximately 85°F.
Newborns do not feed until after their first shed, which occurs after about 1 week.
Cost Estimation:
Prices for breeding can vary from $20 to $70, depending on type, location, and the breeder.
Sexing Techniques
Identifying Males and Females:
Males:
Possess a V-shaped row of pre-anal pores that exude a waxy substance.
Characterized by hemipenal bulges at the base of the tail.
Females:
Have pre-anal 'pits' which can be used for identification.
Temperature-Dependent Sex Determination
Temperature Impact on Sex Ratios:
Outcomes of breeding at different temperatures can alter the gender ratio of hatchlings:
Nearly all females hatch at high temperatures.
Equal split of male and female hatchlings at moderate temperatures.
Nearly all males hatch at low temperatures.
Behavioral Implications:
Females that are incubated at higher temperatures tend to exhibit increased aggression and are less likely to breed effectively.
Selection for Breeding
Selection Criteria for Captive Breeding:
Ensure that the selected geckos are alert and responsive.
Preferably select captive-bred geckos rather than imported ones.
It's recommended to observe the gecko's feeding habits prior to purchase to ensure they are healthy and have a proper diet.
Lifespan:
In the wild, the lifespan can reach up to 15 years, whereas, in captivity, it may be shorter due to different living conditions and potential stressors
Class Discussion Notes on IguanasOverview of Iguanas
Iguanas are popular reptiles that have specific housing, dietary, and care requirements essential for their health and well-being.
Dehydration in Iguanas
Dehydration is highlighted as the number one killer of reptiles, which includes iguanas.
Causes of Dehydration:
Lack of water: Iguanas need a consistent supply of fresh water.
High temperatures: Excessive heat can lead to increased water loss.
Low humidity: If the substrate (bedding material) lowers the humidity in their environment, this can contribute to dehydration.
Housing Requirements for Iguanas
Iguanas are natural climbers and require a suitable environment to accommodate this behavior.
Minimum length: Iguanas typically reach around 3 feet in length as adults.
Habitat setup:
Must include branches or other climbing structures (e.g., plants) to facilitate climbing.
Ensure there are no sharp edges present that could harm the iguana.
Use newspaper as flooring which is preferable for cleanliness compared to other materials.
Note: Carpet is discouraged as it can hold bacteria and germs, requiring frequent cleaning. Iguanas often urinate and defecate in their water, increasing maintenance needs.
Bathe iguanas regularly:
Long soaks in a bathtub are beneficial, especially for shedding.
Iguanas enjoy hiding in green plants, which can also provide necessary cover and help maintain humidity levels.
Dietary Needs of Iguanas
Iguanas are primarily herbivorous, meaning their diet should consist mostly of plant-based foods.
Recommended foods:
Any dark green leafy vegetables and most fruits, particularly:
Oranges
Cantaloupe
Honeydew
Watermelon
Greens: Include collard, mustard, beet, and dandelion greens as staples in their diet.
Caution on certain foods:
Iceberg Lettuce is a bad choice due to low nutritional value.
Spinach should be given in limited amounts as it can deplete other vitamins and minerals.
Crickets can also be included as a protein source, especially for younger iguanas.
Cleaning and Treatment Considerations
Cleaning the habitat:
Use a scrub brush and water for cleaning purposes, while avoiding chemicals that could harm the iguana.
Mites Treatment:
For mite infestations, specific treatments can be purchased.
An alternative approach includes applying olive oil as a home remedy for mite issues.
Summary
The care for iguanas includes ensuring a proper habitat to prevent dehydration, offering a balanced diet rich in greens and fruits while avoiding harmful foods, and maintaining cleanliness in their environments to support their health. Regular monitoring for diseases and pests, such as mites, is also crucial for long-term health.
Important Reminders: Keep an eye on humidity levels, temperature settings, and overall cleanliness to create a suitable living condition for iguanas
Class Overview
Topic of the class today focuses on careers or interests.
Discussed implications and topics relevant to careers in fashion, as indicated in the transcript citations.
Iguanas and Lizards: Care Instructions
Proper handling techniques:
Be sure NOT to hold or pull them by the tail.
Reason: The tail may pull or fall off.
Tail regeneration:
New tail does regenerate, but usually it is not as limber and may have a different color.
Regrowth is significantly slower compared to a gecko.
Disease concerns:
Salmonella risk is zoonotic (transmissible from reptiles to humans).
Note: Salmonella is a normal inhabitant of the reptiles' digestive tract, but it is not meant to inhabit the human digestive system.
Temperature:
Iguanas and lizards feel colder to touch than humans.
Characteristics and Facts about Lizards
Common name: Beardies (Bearded Dragons).
Size and origin: Moderate sized lizard, native to Australia.
Coloration:
Light tan is the most common color among Bearded Dragons.
Distinguishing features:
Beard-like collar around the neck that can display different colors.
Environmental Needs for Iguanas/Lizards
Recommended habitat:
Size: 55-75 gallon aquarium necessary for proper living conditions.
Habitat requirements:
Secure cover within the aquarium to provide safety.
Substrate: Sand is ideal for bedding material.
Accessories: Low ceramic dishes recommended for feeding and hydration.
Dietary Needs of Bearded Dragons
Bearded Dragons typically have complex dietary requirements:
Vegetables: Leafy greens are essential for their diet.
Fruits: Inclusion of fruits in moderation is necessary.
Protein sources:
Mealworms and crickets are crucial protein sources.
Cockroaches can also be included in their diet.
Health Considerations for Bearded Dragons
Known health issues:
Respiratory infections are common among Bearded Dragons.
Environmental enrichment needs:
Bathing is necessary; Bearded Dragons enjoy water and should be bathed regularly.
Additionally, they require heat to thrive in their environment.
Lighting requirements:
Proper UVB lighting is essential.
Placement should be at least one foot away from the basking area to be effective.
Humidity levels:
Maintaining humidity levels around 35-40% is important for overall health.
Conclusion
Understanding the needs and characteristics of reptiles like Bearded Dragons and Iguanas is crucial for their well-being.
Proper habitat setup, dietary management, and health care are necessary components of responsible reptilian ownership
Overview of Class Topic
Today's class focuses on various aspects of careers in the fashion industry and an emphasis on related interests.
Turtles and TortoisesTaxonomy of Turtles
Order: Testudines
Suborders:
Pleurodira: Side-necked turtles
Cryptodira: Hidden-neck turtles
Breeding and Reproduction
Turtles are oviparous, meaning they lay eggs.
Common nesting behaviors:
Digging holes in sand or soil to lay eggs, then covering and leaving them unattended.
Egg Clutch Size:
Range from 3 to 200 eggs depending on species.
Incubation Period:
Soft-shelled turtles: approximately 30 days.
Tortoises with hard shells: approximately 60 to 90 days.
Distinctive anatomical feature:
Males have a cloacal opening positioned further down the tail compared to females.
Adaptations for Survival
Both turtles and tortoises possess limbs structured for terrestrial locomotion, although this adaptation results in slower movement on land.
Habitat preferences:
Turtles generally spend a majority of their time in aquatic environments.
Skin characteristics:
Turtles do not molt their thick epidermal skin; instead, they have a unique process where a new scale (or scute) forms underneath the old one.
Growth evidence:
Scutes (epidermal scales) can be counted to estimate the age of an individual turtle.
Important Terminology
Scutes: The bony external plates on a turtle's shell that help with growth and age determination.
Carapace: The upper part of the turtle's shell, integral to its protection and structural integrity.
Nostrils: External openings for respiration, situated on the snouts of turtles.
Environmental Considerations
Reference to seasonal changes such as expected snow days.
Temperature noted at 10°F, likely indicative of local weather conditions affecting biology and behavior of local wildlife