ANS 282 Lecture Notes - Lecture 18: Crop Milk, Angiogenesis, Hyperkeratosis
Document Summary
Anatomy and physiology of digestive system: beak ; birds have no teeth, beak is a hard, tough epidermal structure (keratin= the same tough, insoluble protein found in fingernails, hoofs and horns) attached to a bone base (maxilla. Grooming i. ii: manipulating objects iv. v. vi. vii. viii. killing prey. Causes of beak trimming: excessive beak growth, abnormal brownish/ reddish spots, fissures and cracks on the horny surface, very sharp tip due to abnormal wearing, mostly due to imbalanced nutrition, liver disease or environmental problem. Once you have trimmed the beak once, you never have to do it again: true, false. Trimming the beak will not stop further growth and you will have the same problem several weeks later: tongue: very diverse according to the main function, food collecting, woodpeckers - can thrust considerable distance outside the beak. Back portion is hard and rough: ducks, geese and swans - thick fleshy, lots of bristles for straining food from water.
