禽营养 Poultry Nutrition

饲粮蛋氨酸水平对蛋鸡产蛋后期生产性能的影响

  • 梁中军 ,
  • 王瑛 ,
  • 韩雪娇 ,
  • 马秋刚 ,
  • 张建云 ,
  • 计成
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  • 1. 中国农业大学, 动物营养国家重点实验室, 北京 100193;
    2. 铁骑力士实业有限公司, 冯光德实验室, 绵阳 621000

收稿日期: 2015-03-25

  网络出版日期: 2015-09-12

基金资助

国家蛋鸡产业技术体系(CARS-41-K15)

Effects of Dietary Levels of Methionine on the Performance of Laying Hens in Late-Phase of Egg Production

  • LIANG Zhongjun ,
  • WANG Ying ,
  • HAN Xuejiao ,
  • MA Qiugang ,
  • ZHANG Jianyun ,
  • JI Cheng
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  • 1. State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193, China;
    2. Feng Guangde Laboratory, Tie Qi Li Shi Industrial Limited Company, Mianyang 621000, China

Received date: 2015-03-25

  Online published: 2015-09-12

摘要

本研究探讨了不同蛋氨酸水平饲粮对蛋鸡产蛋后期生产性能的影响。试验选用50周龄京红1号蛋鸡900只随机分为5个组,每个组12个重复,每个重复15只鸡,饲粮蛋氨酸水平分别为0.238%(对照,A)、0.288%(B)、0.338%(C)、0.388%(D)和0.438%(E)。试验期13周。结果表明:各组平均蛋重随着饲粮中蛋氨酸水平的升高而增加,D、E组显著高于对照和B组(P<0.05);对照组料蛋比显著高于其他各组(P<0.05),其中D组料蛋比最低;B、C、D和E组蛋鸡产蛋率、日产蛋量、采食量较对照组显著提高(P<0.05),但这4个组之间差异不显著(P>0.05)。此外,以产蛋率、平均蛋重、日产蛋量和料蛋比为指标通过二次曲线模型拟合得出,每只鸡总蛋氨酸需要量为0.41~0.47 g/d,可消化蛋氨酸需要量为0.39~0.44 g/d,总蛋氨酸+半胱氨酸需要量为0.72~0.81 g/d,可消化蛋氨酸+半胱氨酸需要量为0.65~0.73 g/d。

本文引用格式

梁中军 , 王瑛 , 韩雪娇 , 马秋刚 , 张建云 , 计成 . 饲粮蛋氨酸水平对蛋鸡产蛋后期生产性能的影响[J]. 动物营养学报, 2015 , 27(9) : 2699 -2704 . DOI: 10.3969/j.issn.1006-267x.2015.09.007

Abstract

This study was conducted to explore the effects of dietary methionine levels on performance of laying hens in the late-phase of egg production. A total of 900 Jing Hong laying hens aged of 50 weeks were randomly divided into 5 groups with 12 replicates per group and 15 hens per replicate, and the dietary methionine levels were 0.238% (A), 0.288% (B), 0.338% (C), 0.388% (D) and 0.438% (E), respectfully. The experiment lasted for 13 weeks. The results showed as follows: average egg weight was increased with the methionine levels, and that of groups D and E were significantly higher than that of control and B groups (P<0.05). The feed/egg of control group was significantly higher than that of the other groups (P<0.05), and group D was the lowest. The laying rate, daily egg production, feed intake of groups B, C, D and E were significantly higher than those of control group (P<0.05), but there was no significant difference among these 4 groups (P>0.05). In addition, to laying rate, average egg weight, daily egg production and feed/egg as the evaluation index, based on quadratic curve model, the total methionine requirement of each chicken is 0.41 to 0.47 g/d, and digestible methionine requirement is 0.39 to 0.44 g/d, and total methionine + cystine requirement is 0.72 to 0.81 g/d, and digestible methionine + cystine requirement is 0.65 to 0.73 g/d.

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