| 日粮色氨酸水平对肉仔鸡血浆色氨酸浓度和日增重的影响 |
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| 引用本文： | 刘丽梅 孙文志. 日粮色氨酸水平对肉仔鸡血浆色氨酸浓度和日增重的影响[J]. 东北农业大学学报, 1996, 27(1): 54-57 |
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| 作者姓名： | 刘丽梅 孙文志 |
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| 作者单位： | 东北农业大学 |
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| 摘 要： | 在基础日粮基础上，研究了色氨酸（Ｔｒｙｐｔｏｐｈａｎ，Ｔｒｐ）不同添加水平对７～８周龄ＡＡ公肉仔鸡血浆Ｔｒｐ浓度和平均日增重的影响．结果表明，在一定范围内，血浆游离Ｔｒｐ浓度和平均日增重均与日粮Ｔｒｐ水平至二次抛物线关系，其中血浆Ｔｒｐ浓度与日粮Ｔｒｐ水平是显著相关（Ｐ＞０．０５），而平均日增重不显著（Ｐ＞０．０５）。根据实验结果推荐，当日粮粗蛋白为１８．７７％时，７～８周龄公肉仔鸡日粮Ｔｒｐ的适宜水平为０．１６％。
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| 关 键 词： | 肉仔鸡，血浆色氨酸，平均日增重，日粮色氨酸 |
THE INFLUENCE OF DIETARY TRYPTOPHAN LEVELS ON PLASMA TRYPTOPHAN CONCENTRATIONS AND MEAN DAILY GAIN IN BROILER CHICKS |
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| Liu Limal,Sun Wenzhi,Tong Bing. THE INFLUENCE OF DIETARY TRYPTOPHAN LEVELS ON PLASMA TRYPTOPHAN CONCENTRATIONS AND MEAN DAILY GAIN IN BROILER CHICKS[J]. Journal of Northeast Agricultural University, 1996, 27(1): 54-57 |
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| Authors: | Liu Limal Sun Wenzhi Tong Bing |
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| Abstract: | Experiments were conducted to determine how different levels of dietary tryptophan (Trp) influence the plasma Trp concentrations and mean daily gain of broiler chicks at 7～8 weeks of age.Within limits,a quadratic effect of dietary Trp levels was observed on both plasma Trp concentrations (P<0.05) and mean daily gain (P>0.05).The requirement of the male broiler chicks at 7～8weeks of age for Trp was estimated to be 0.165, at least crude protein levels of 18.77%. |
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| Keywords: | broiler chick plasma tryptophan mean daily gain dietary tryptophan. |
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