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Evaluation of crude protein levels in White Pekin duck diet for 21 days after hatching

한국축산학회지 2020년 62권 5호 p.628 ~ 637
조현민, Wickramasuriya Samiru Sudharaka, Macelline Shemil Priyan, 홍준선, 이보원, 허정민,
소속 상세정보
조현민 ( Cho Hyun-Min ) - Chungnam National University Department of Animal Science and Biotechnology
 ( Wickramasuriya Samiru Sudharaka ) - Uva Wellassa University Department of Animal Science
 ( Macelline Shemil Priyan ) - University of Sydney Faculty of Science School of Life and Environmental Science
홍준선 ( Hong Jun-Seon ) - Chungnam National University Department of Animal Science and Biotechnology
이보원 ( Lee Bo-Won ) - Chungnam National University Department of Animal Science and Biotechnology
허정민 ( Heo Jung-Min ) - Chungnam National University Department of Animal Science and Biotechnology

Abstract


In poultry diets, a requirement of crude protein is one of the most important factors in poultry productivity. Besides, the Pekin duck requirement of crude protein is still not clear. This experiment was conducted to determine the crude protein requirement of Pekin duck on diet formulation by investigation of growth performance, carcass trait, and analysis of blood parameter for a hatch to 21-day (d) of age. A total of 432 male White Pekin ducks were randomly allocated to six levels of crude protein (i.e., 15%, 17%, 19%, 21%, 23%, and 25%) to give six replicate pens per treatment with 12 ducklings per each pen. Body weight and feed intake were measured weekly by calculating feed conversion ratio and protein intake. Two ducklings each pen was euthanized via cervical dislocation for analysis of carcass trait and plasma blood on 21-d of age. Data were applied on both prediction linear-plateau and quadratic-plateau models by estimation of the crude protein requirements. Data were applied on both prediction linear-plateau and quadratic-plateau models by estimation of the crude protein requirements. The level of crude protein requirements of Pekin ducks for 21 days after the hatch was estimated to be 20.63% and 23.25% diet for maximum daily gain, and minimum feed conversion ratio, respectively.

키워드

Growth performance; Linear-plateau model; Pekin duck; Quadratic-plateau model

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