Lecture 6 (Behavior And Animal Welfare)
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What is Behavior>
• what animals do to control and interact with their environment • the outward expression of the internal states of the animal • actions of the animal towards its environment
What is ethology?
Scientific study of behavior
What behaviors are we interested in?
• normal behavior • abnormal behavior • Stereotypies • Redirected behaviors
What is normal behavior?
• “wild ancestors” • feral conspecifics • Domesticated conspecifics in semi-natural environments
What is abnormal behavior?
Behavior that is away from normal behavior • statistically rare • different from population • differs in pattern, frequency or context
What is behavior based upon to be abnormal?
Appearance Quantity
What are some examples of abnormal behavior appearance?
• stereotypies (bar biting, pacing, weaving) - destructive (tail biting, feather-pecking, cannibalism)
What are some examples of abnormal behavior quantity?
Aggression Inactivity Unresponsiveness
How do we study abnormal behavior?
• evaluate impact of environments on frequency of abnormal behavior • associate the behavior with other welfare indicators • identify the motivational basis of the behavior
What is stereotypic behavior?
Repetitive, unvarying, and apparently functionless behavior patterns • regulates stress response
What is redirected behavior?
Typical motor patterns are performed, but directed towards different substrate or in a different context
What are some examples of redirected behavior?
sucking, chewing, nosing, self - mutilation, pica, inappropriate sexual behavior