Class Notes (837,010)
United States (324,839)
ANS 217 (9)
Dr.Hermes (9)
Lecture 2

Week 2 Poultry Notes part 2.pdf

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Department
Animal Sciences
Course
ANS 217
Professor
Dr.Hermes
Semester
Spring

Description
Anatomy cont. 1/17/13 1:53 PM Feathers • Locations o Contour feathers  Body and wings  For flight, mainly tail and winds  o Semiplumes o Down o Filoplume tactile  Under layers  Insulation  Underside o Bristle  Around:  Face  Eyes  Ears  Mouth  Nares • Changes in feather color o Red-tailed hawk doesn’t have red tail until 1 year o Bald eagle/golden pheasant don’t develop color until sexual maturity • Anatomy o Vane o Rachis o Aftershaft o Superior umbilicus o Calamus (quill) o Inferior umbilicus  Umbilicus= “hole” • Structure o Barbs o Barbules o Hooklets  Aka barbicels or hamuli  Very much like Velcro o Mutations:  Silky chickens  Don’t have hooklets, so feathers are just fluffy  Frizzles  Barbs are curved, so the feathers aren’t smooth
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