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Effects of additional dietary levels of folic acid, biotin, vitamin K, and selenium on egg production, fertility, hatchability, early and late embryonic mortality in White Pekin duck breeders

Effects of additional dietary levels of folic acid, biotin, vitamin K, and selenium on egg production, fertility, hatchability, early and late embryonic mortality in White Pekin duck breeders

DeSouza, Simon Piedade

Text (1984)

Part of Electronic Theses & Dissertations