Quiz 2 (Handling and Husbandry)

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Nutrient

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Nutrient

Something essential a plant/animal obtains from its environment for growth and maintenance of life

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Digestion

Process of breaking down food stuffs into chemical substances that can utilized by the body to support life

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Classification of Diet

Carnivore, Herbivore, and Omnivore

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Carnivore

An animal that eats meat only

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Omnivore

An animal that eats meat and plants

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Herbivore

An animal that eats plants

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Malnutrition

Inadequate or unbalanced consumption of nutrients

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What can malnutrition cause?

Disease and predisposing to disease

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Classification of Nutrients

Water, macronutrients, and micronutrients

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What is the most important nutrient?

Water

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Essential Nutrients

knowt flashcard image
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Functions of Water

  • Vital role in almost all metabolic processes

  • Maintains electrolyte concentrations

  • Major component of blood

  • Involved in thermoregulation (temp. regulation)

  • Transport medium

  • Provides shape and structure to organs

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What can cause increased water demand?

Critically ill patients, extreme temperatures, and high energy outputs

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What are the 2 ways animals source water?

Drinking and food

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Dehydration

A negative fluid balance (Body using or losing more water than it is taking in)

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Causes of Dehydration

Excessive vomiting/diarrhea, Polyuria (increased urination) due medical conditions, Anorexia, Trauma (blood loss or burns), Neglect

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Clinical Signs of Dehydration

Decreased skin elasticity, tacky mucous membranes, prolonged tissue perfusion times, and sunken eyes

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What are macronutrients?

Carbohydrates, fats, and proteins

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What is energy?

Property deprived from diet (typically macromolecules) that is used by cells to fuel all body functions

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How is energy produced in an animal's body?

Digestion breaks macronutrients down into their structural units that the body absorbs these units into bloodstream to be utilized for ATP production. ATP is produced in cells using Glycolysis, Krebs Cycle, and Electron Transport System.

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Carbohydrate Function

Major source of energy that can stored in liver as Glycogen and adipose tissue as fat

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What is the structural unit of carbohydrate?

Glucose

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Monosaccharide

One sugar unit (ex. Glucose)

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Disaccharide

Two sugar units (Sugars, sucrose)

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Polysaccharide

Numerous sugar units (Ex. Starches, cellulose)

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Soluble Carbohydrates

Carbs that can be dissolved by animals and are broken down by amylase

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Insoluble Carbohydrates

Carbs that can not be dissolved by animals and are broken down by cellulose

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What is considered a soluble carbohydrate?

Sugars and starches

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What is considered an insoluble carbohydrate?

Anything that contains cellulose (Hay, grasses, gums, pectin)

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How are insoluble carbs get digested?

Digested in small intestine through microbial fermentation (Microbes create cellulase enzymes)

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Importance of fiber for non-herbivore

  • Stabilizes gut motility

  • Supports colon health

  • Increased bulk + water content in large intestine

  • Dilutes other macronutrients to induce weight loss

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What is the structural unit for fats?

Fatty acids and glycerol

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Fats/Lipids Function

Provides energy, increases palatability and adds texture, provides essential fatty acids, transports and distribute fat soluble vitamins, used to create cell membranes and sex hormones

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What makes up a fat?

One glycerol molecule and three fatty acid chains (Triglyceride)

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How are lipids digested?

Using Lipase enzyme in pancreas, lipids are broken into components (1G and 3FAs) used to create ATP

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Where is excess lipids stored?

Adipose tissue

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2 Categories of Lipids

Saturated and Unsaturated

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2 Categories of Unsaturated fats (Where and how many double bonds are present)

Monounsaturated: One double bond Polyunsaturated: Multiple double bonds

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Saturated fats

Solid at room temperature, referred as fats, typically animal based with no double bonds

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Unsaturated fats

Liquid at room temperature, referred as oils, typically plant based with some double bonds present

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Fatty Acid Families

Omega 3, Omega 6, Omega 9 fatty acids

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What are Omega 3, 6, 9 fatty acids good for?

Skin, hair, hooves, horns

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What are the function of essential fatty acids?

Essential for normal body functions (like Kidney + Reproductive functions, membrane formation, and prostaglandin production)

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What deficiencies happen without the proper amount of fatty acids?

Dull hair coat, hair loss, susceptibility to infection or poor wound healing

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What is the structural unit for proteins?

Amino acids

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What is the function of proteins?

Used in tissue growth and repair; serves enzymes, hormones, and antibodies; used to make hemoglobin, used as energy

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How are proteins made?

Amino acids linked together with peptide bonds

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What determines type and function of protein?

Type and order of amino acid

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How are proteins digested?

Proteins are broken down into amino acids in the small intestine. Amino acids are absorbed into the bloodstream and sent to liver for reconstruction into the body.

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Can amino acids be produced by the body?

Typically, no. If so, they are not produced fast enough to meet requirements for the body. They must be provided by the animal's diet.

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How many amino acids are considered essential?

10 (11 for cats!)

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Is protein be used for energy?

If the body can't meet energy requirements with carbs and fats, the body will use protein for energy. Protein is NOT a good source of energy.

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Anabolic Pathway

Proteins are broken down in to amino acids and are circulated throughout the body to build new body tissues. Any unused amino acids are utilized as energy and stored as glycogen

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Catabolic Pathway

Energy demands are not met by diet, and body will break down body proteins into amino acids and use it for energy

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What are the two types of micronutrients?

Vitamins and minerals

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What are macrominerals expressed as? (What units does it use?)

%

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What are microminerals expressed as? (What units does it use?)

Ppm

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What are minerals?

Inorganic substances essential to life

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How many minerals are essential to mammals?

At least 18

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Macrominerals Examples

Sodium + Chloride, Potassium, Phosphorus, Magnesium, Calcium, Sulfur

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Microminerals Examples

Zinc, Selenium, Manganese, Iodine, Fluorine, Chromium, Copper, Iron, Boron, Molybdenum, Cobalt

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What minerals are required for skeletal structure maintenance?

Calcium, Phosphorus, Magnesium

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What minerals are required for acid base balance or fluid balance?

Potassium, Sodium, Chloride

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What minerals are required for cellular function?

All Minerals

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What minerals are required for nerve conduction?

Potassium, Magnesium

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What minerals are required for muscle contraction?

Calcium, Magnesium, Potassium

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Which amino acid is essential for only cats?

Taurine

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What can calcium toxicity cause?

Problems with iron absorption and kidney function, reduction of copper absorption, may cause magnesium deficiency

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What can iron toxicity cause?

Alimentary disturbances, reduced growth, phosphorus deficiency, reduction of copper absorption

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What can copper toxicity cause?

As accumulation happens in liver, can cause necrosis of liver walls, jaundice, loss of appetite

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What can iodine toxicity cause?

Reduction in weight gain, reduction in feed intake, reduced egg production in chickens

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What can manganese phosphorus toxicity cause?

Depressed appetite, retarded growth

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What can zinc toxicity cause?

Depressed food consumption, induced copper deficiency

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What can selenium toxicity cause?

Dullness, stiffness in joints, reduced food intake, loss of hair, acute poisoning (leads to death)

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What can phosphorus toxicity cause?

Calcium deficiency, bone malformation, fractures

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What can sodium chloride toxicity cause?

Nervousness, weakness, seizure, and death usually associated with low intake of water

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What are vitamins?

Organic substances that come from the diet

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What are the 2 categories that vitamins are sorted in?

Fat and water soluble (based on absorption in intestinal tract)

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How do fat soluble vitamins work?

They bind to lipids in the small intestine and are absorbed in lipids

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What are examples of fat soluble vitamins?

Vitamin A, D, K

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Where are excess fat soluble vitamins stored?

Adipose tissue

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How do water soluble vitamins work?

They are dissolved in water in small intestine and absorbed when water is absorbed

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What are examples of water soluble vitamins?

Vitamin B, C

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Where are excess water soluble vitamins stored?

They are exerted in urine within a few hours of ingestion

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