Biology 2581B Study Guide - Quiz Guide: Snoring, Bull-Baiting, Malocclusion

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When considering animal health and welfare we need to consider two factors. Firstly, whether the animal is physically healthy and secondly whether the animal has what it wants. When an animal experiences an external or internal sensory input, there is a cycle of things which happen. The brain will evaluation this input, causing emotions to occur. The body will then respond to the input through behavioural and physiological responses. Through this, the animal will then adapt and survive. Physiological responses are not visible and are usually non-specific. Physiological responses cannot be used to indicate valence (this is the intrinsic perception of an event, whether it is positive or negative). Behavioural responses are much easier to observe but are more complex than physiological responses, making them difficult to interpret. Behavioural responses are a more specific measure of emotional state and experience than physiological responses.