Definition should include

• bovine
• ovine
• caprine
• equine
• porcine
• avian

as well as terms related to

• age and weight
• gender (e.g., boar vs. sow, bull vs. steer)
• breeds
• reproductive status
• production systems (e.g., conventional, organic, natural, animal)
• performance (i.e., equine). 

Teacher Resource: Animal and Poultry Sciences, Virginia Cooperative Extension

Process/Skill Questions:

• Why is it important to understand terms commonly used in the animal industry?
• What are the origins of terms used to describe the size of a horse?
• Where did terms like bovine, equine, and avian originate?