| 矮小型褐壳蛋鸡蛋白质和含硫氨基酸需要量的研究Ⅱ代谢试验和血浆游离氨基酸测定 |
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| 引用本文： | 汪尧春,王庆民,宁中华.矮小型褐壳蛋鸡蛋白质和含硫氨基酸需要量的研究Ⅱ代谢试验和血浆游离氨基酸测定[J].中国畜牧杂志,1997(1). |
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| 作者姓名： | 汪尧春 王庆民 宁中华 |
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| 作者单位： | 中国农业大学动物科技学院，中国农业大学昌平实验站 |
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| 摘 要： | 将２７０只矮小型褐壳蛋鸡随机分成９组，饲喂９种不同蛋白质和含硫氨基酸水平日粮。９种试验日粮分别含有１１．５０ＭＪ／ｋｇ代谢能和１６．５２％、１７．２９％、１８．１７％粗蛋白质以及０．６２％、０．６６％、０．７２％含硫氨基酸，研究矮小型褐壳蛋鸡蛋白质和含硫氨基酸的需要量。代谢试验结果表明，４０周龄矮小型褐壳蛋鸡每日采食１４．１３ｇ蛋白质和０．５５８ｇＳ—氨基酸时，氮存留量达到最大值。血浆游离氨基酸测定结果证实，３６周龄矮小型褐壳蛋鸡每日采食０．５５６ｇ含硫氨基酸时，可满足产蛋需要。此结果和饲养试验对蛋白质和含硫氨基酸的估测量相一致
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| 关 键 词： | 矮小型 蛋鸡 蛋白质 含硫氨基酸 代谢 血浆游离氨基酸 |
Effect of Protein and Sulphur Amino Acids Level in Diets of DwarfBrown Layers on Nitrogen Balance and Plasma Free Amino Acid Levels |
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| Wang Yaochun et al..Effect of Protein and Sulphur Amino Acids Level in Diets of DwarfBrown Layers on Nitrogen Balance and Plasma Free Amino Acid Levels[J].Chinese Journal of Animal Science,1997(1). |
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| Authors: | Wang Yaochun |
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| Institution: | China Agricultural University Beijing 100094 |
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| Abstract: | dwarf brown layers were allocated into individual cages for nine treatments in which they were fed a diet with 16.52 %,17.29%,18.17% protein and 0.62%,0.66%,0.70% sulphur amino acid(S-AA) in order to estimate the protein and S-AA requirements through metabolic test and plasma free amino acid analysis.Results showed that nitrogen retention was the highest when dwarf brown layers were fed 14.13g protein and 0.558g S-AA during the period of 40 weeks of age.0.556g/day S-AA could meet the requirement of per bird for egg production during the period of 36 weeks of age. |
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| Keywords: | dwarf layers protein sulphur containing amino acid metablic plasma free amino acid |
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