Working With Cats and Dogs

Intro to Small Animal Management

Overview

  • Course Title: Intro to Small Animal Management

  • Instructor: Keith J. Ou, Ph.D.

  • Date: October 23, 2025

Learning Outcomes

By the end of this lecture, students will be able to:

  1. Recognize the characteristics of cats and dogs and understand their husbandry needs.

  2. Describe the differences in husbandry between cats/dogs and rodents (e.g., mice and rats), including:

    • Fasting requirements due to potential vomiting.

    • Zoonotic pathogens found in cats and dogs.

    • Techniques for handling and restraint.

Working with Cats

Classification of Cats

  • USDA-Covered Species: Under the Animal Welfare Act (AWA)

  • Behavioral Traits:

    • Enjoy climbing, chasing, and hunting.

    • Intelligent animals categorized as predator species within

      • Genus: Felis

      • Species: catus

Taxonomic Classification
  • Kingdom: Animalia

  • Phylum: Chordata

  • Class: Mammalia

  • Order: Carnivora

  • Family: Felidae

Life Span and Reproductive Characteristics

  • Life Span: 9-14 years

  • Sexual Maturity:

    • Male: 7-8 months

    • Female: 5-9 months

  • Estrous Cycle:

    • Polyestrous seasonal

    • Induced ovulator with a sexual cycle duration of 2-3 weeks

  • Gestation Period: 58-67 days

  • Number of Young: 3-7

  • Weaning Age: 7-8 Weeks

Nutrition

  • Dietary Needs:

    • Cats are obligate carnivores; their nutritional requirements differ from those of dogs.

    • Susceptible to vomiting; needs to be fasted for 12 hours prior to surgery.

    • Can maintain on a dry diet offered ad libitum, but fresh water must be provided at all times.

Body Condition Scoring for Cats

  • Very Thin: More than 20% below ideal body weight

    • Ribs, spine, and hip bones are prominently visible.

    • Pronounced waist and noticeable muscle mass loss.

  • Thin: 10-20% below ideal body weight

    • Ribs, spine, and hip bones visible, waist maintained with minimal belly fat.

  • Ideal: Body weights within ideal range with a visible waist and slight belly fat.

  • Overweight: 10-15% above ideal body weight.

    • Difficulty feeling ribs; defined waist is not visible, possible slight sagging belly.

  • Obese: More than 15% above ideal body weight

    • Ribs are difficult to feel; waist absent, significant fat deposits noticeable.

Housing Requirements

  • Recommended to house in pairs or groups to minimize aggression:

    • Housing designs should allow for normal bodily function and secure living environments that are durable and maintainable.

Cat Behavior

  • Individual personality traits may vary considerably.

  • Generally, cats raised together are more social though could display aggression if improperly socialized.

  • Early and positive exposure to humans (2-4 weeks old) is crucial for their future suitability in research.

Fear, Anxiety, and Stress (FAS) Scale for Cats
  • High FAS (Level 5): Aggressive behaviors with significant distress.

    • Offensive aggression: Symptoms include dilated pupils, aggressive body postures (e.g., present hunting posture, growling).

    • Defensive aggression: Ears back, hissing, or swatting signs.

  • FAS Level 4: Flight behavior or tonic immobility signs.

  • Moderate to Mild FAS Monitoring: Evaluate through specific behavioral cues like eye contact, tail movements, and body posture.

Risks Associated with Working with Cats

  • Potential for Injury: Teeth and claws can cause harm, alongside other health risks such as:

    • Allergies and zoonoses including:

      • Rabies

      • Campylobacter jejuni

      • Bartonella henselae (Cat Scratch Fever)

      • Leptospira spp.

      • Salmonella spp.

      • Toxoplasma gondii (toxoplasmosis)

Research Applications of Cats

  • Scientific Research Areas:

    • Neurological and sensory research.

    • Studies on cardiovascular and respiratory illnesses, especially pertinent viruses like Feline Leukemia Virus (FLV) or Feline Immunodeficiency Virus (FIV).

Working with Dogs

Classification of Dogs

  • USDA-Covered Species: Under the Animal Welfare Act (AWA)

  • Social Nature: Description of dogs as very social species that often thrive in group settings and enjoy interaction with humans.

  • Taxonomic Characteristics:

    • Kingdom: Animalia

    • Phylum: Chordata

    • Class: Mammalia

    • Order: Carnivora

    • Family: Canidae

    • Genus: Canis

    • Species: lupus familiaris

Life Span and Reproductive Characteristics of Dogs

  • Life Span: 10-15 years

  • Sexual Maturity:

    • Male: 7-8 months

    • Female: 7-9 months

  • Estrous Cycle: Monoestrous with a duration of 7-10 days

  • Gestation Period: 59-68 days

  • Number of Young: 4-8

  • Weaning Age: 6-8 Weeks

Housing Requirements

  • Adequate dimensions for cages and pens are mandatory to support:

    • Normal bodily functions

    • Comfort and freedom of movement for the animals

    • Space Requirements: Based on weight:

      • < 15 kg: 8 sq ft

      • 15-30 kg: 12 sq ft

      • > 30 kg: 24 sq ft or more

Nutrition for Dogs

  • Dietary Profile: Domesticated dogs are generally carnivorous, necessitating regular feeding schedules.

    • Suggested feeding frequency includes once daily, with many dogs benefiting from twice-daily feedings due to their enjoyment of structured feeding times.

    • Continuous access to potable water is essential.

Body Condition Scoring for Dogs

  • Identification of Weight Classes:

    • Very Thin: More than 20% below ideal body weight with visible ribs and no fat.

    • Thin: 10-20% below ideal body weight, obvious waist but some fat.

    • Ideal: Should exhibit visible waist and minimal fat covering bones.

    • Overweight: 10-15% above ideal body weight with difficulty feeling ribs.

    • Obese: Greater than 15% above ideal weight; significant fat deposits with no waist.

Risks Associated with Working with Dogs

  • Potential for injuries includes:

    • Dog barking (risk for hearing damage).

    • Bites and scratches.

    • Allergies and zoonoses including rabies, Campylobacter jejuni, and Brucellosis.

Research Applications of Dogs

  • Areas of Research Impact:

    • Heart and lung diseases, cancer studies, pharmacology safety testing, and more.

Common Euthanasia Methods by Species

  • Standard Laboratory Mouse: Carbon Dioxide

  • Standard Laboratory Rat: Carbon Dioxide

  • Hamsters (Golden, Syrian): Carbon Dioxide

  • Chinese Hamsters: Carbon Dioxide

  • Mongolian Gerbils: Carbon Dioxide

  • Guinea Pigs: Carbon Dioxide

  • Rabbits: Barbiturates

  • Cats: Barbiturates

  • Dogs: Barbiturates

Conclusion

  • The importance of understanding the unique needs of both cats and dogs in management, research, and welfare contexts cannot be overstated. The details provided form the essential foundation for effective practice in the field of small animal management.