vitamin D3 requirement of broiler breeders

• Published in: Poultry science Vol. 85; no. 4; pp. 674 - 692
• Main Authors: Atencio, A, Edwards, H.M. Jr, Pesti, G.M, Ware, G.O
• Format: Journal Article
• Language: English
• Published: England 01.04.2006
• Subjects: Aging; Animal Feed; Animal Nutritional Physiological Phenomena; Animals; Body Weight; Chickens - physiology; cholecalciferol; Cholecalciferol - metabolism; Cholecalciferol - pharmacology; dose response; Dose-Response Relationship, Drug; egg hatchability; embryonic mortality; Feeding Behavior; Female; laying performance; nutrient requirements; optimal nutrition; Reproduction - drug effects; Reproduction - physiology

An experiment was conducted with 25- to 66-wk-old Ross broiler breeders in an environment excluding ultraviolet light to determine the cholecalciferol (D3) requirements for hen day egg production; hatchability; body weight of the progeny at 1 d; embryo mortality during the early (1 to 10 d of incuba...