文献类型： 外文期刊

作者： Yuan, C. ¹ ; Li, J. M. ¹ ; Ding, Y. ¹ ; He, Q. ¹ ; Yan, H. X. ² ; Lu, J. J. ¹ ; Zou, X. T. ¹ ;

作者机构： 1.Zhejiang Univ, Feed Sci Inst, Coll Anim Sci, Hangzhou 310058, Zhejiang, Peoples R China

2.Shanghai Acad Agr Sci, Inst Anim Husb & Vet Sci, Shanghai 201106, Peoples R China

关键词： arginine;laying hens;requirement

期刊名称：JOURNAL OF APPLIED POULTRY RESEARCH （ 影响因子：1.178； 五年影响因子：1.572 ）

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收录情况： SCI

摘要： The present study was conducted to estimate dietary L-arginine (Arg) requirement for the hybrid layers from 33 to 45 wk of age. Eight hundred and sixty-four 31-week-old Xinyang Black commercial laying hens were randomly allotted to 6 treatments with 4 replicates of 36 birds. The dietary treatments were corn-corn gluten meal based diets containing 0.64, 0.86, 1.03, 1.27, 1.42, and 1.66% L-Arg, respectively. Feed intake, egg weight, laying rate and FCR of layers responded quadratically (P < 0.05) to the increasing of dietary L-Arg levels; albumen height in 1.27% L-Arg group was the highest (P < 0.05) compared with that in other groups, and 1.27% L-Arg group had higher (P < 0.05) Haugh units than that in 0.64% and 0.86% L-Arg groups. Based on quadratic broken-line regression analysis, the L-Arg requirement of Xinyang Black laying hens (33 to 45 wk) was 1.26% and 1.25% of the diet for feed intake and egg weight, respectively.