Key Points
- The comb, wattles, and ear lobes of the chicken and the snood of turkeys are examples of accessory cutaneous structures of the head, which are common in order Galliformes.
- The males of many gallinaceous species also possess spurs on the caudiomedial surface of the tarsometatarsus. Spurs contains an osseous core and are covered by hard, keratinized epidermis.
- Most galliforms possess a well-developed crop for food storage as well as a well-developed ventriculus or gizzard.
- Gallinaceous birds also possess well-developed intestinal type ceca.
- Galliforms have a non-protrusible phallus, and the presence of this structure is one of characteristics used to sex day-old chicks.
Order Galliformes is a large, diverse taxonomic group with a worldwide distribution. More than 250 species have a chicken-like appearance and short, rounded wings. LafeberVet has listed twelve interesting and clinically significant facts about galliform anatomy and physiology including important vocabulary terms . . .
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References
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