三穗鸭从孵化至21日龄的表观代谢能需要量

Q3 Agricultural and Biological Sciences Journal of Applied Animal Nutrition Pub Date : 2022-08-18 DOI:10.3920/jaan2022.0005
Y. L. Feng, G.T. Dai, M.J. Li, J.H. Wu, J.E. Xu, X. Han
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引用次数: 0

摘要

通过剂量反应实验,估算了三穗鸭(三穗沙鸭)从孵化到21日龄的最佳日粮表观代谢能需求(AME)。三百三十六只一日龄的雄性三穗鸭被随机分配到六个实验处理中,每个处理由七个重复围栏组成,每个围栏有八只鸟。喂食的饲料分别含有10.92、11.38、11.8、12.26、12.68和13.14 MJ AME/kg。在21日龄时,测量了每窝雏鸭的体重、增重、饲料摄入量、蛋白质摄入量、能量摄入和饲料转化率。AME含量从10.92MJ/kg增加到13.14MJ/kg,显著提高了三穗鸭的体重、增重、采食量、饲料转化率和粗蛋白摄入量(P0.05)。
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The apparent metabolisable energy requirement of Sansui ducks from hatch to 21 days of age
A dose-response experiment was conducted to estimate optimal dietary apparent metabolisable energy requirement (AME) in Sansui ducks (Sansui Sheldrake duck) from hatch to 21 days of age. Three hundred thirty-six one-day-old male Sansui ducks were randomly assigned to six experimental treatments, each consisting of seven replicate pens with eight birds per pen. Birds were fed diets containing either 10.92, 11.38, 11.8, 12.26, 12.68 and 13.14 MJ AME/kg, respectively. At 21 d of age, the body weight, weight gain, feed intake, protein intake, energy intake and feed conversion ratio of ducklings from each pen were measured. Increasing AME content from 10.92 MJ/kg to 13.14 MJ/kg significantly improved body weight, weight gain, feed intake, feed conversion ratio and crude protein intake (P<0.05). No significant changes in energy intake were found among treatments (P>0.05). Based on broken-line regression analysis, the AME requirement of male Sansui ducks from hatch to 21 d of age was 11.49 and 11.59 MJ/kg for maximum body weight and best feed conversion ratio, respectively.
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来源期刊
Journal of Applied Animal Nutrition
Journal of Applied Animal Nutrition Agricultural and Biological Sciences-Animal Science and Zoology
CiteScore
2.50
自引率
0.00%
发文量
11
审稿时长
10 weeks
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