| 大豆抗营养因子对生长蛋鸡生产性能、氮代谢和小肠内胰蛋白酶活性的影响 |
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| 引用本文： | 贺英,曹旺斌,杨丽杰,霍贵成.大豆抗营养因子对生长蛋鸡生产性能、氮代谢和小肠内胰蛋白酶活性的影响[J].中国畜牧杂志,1998,34(5):5-8. |
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| 作者姓名： | 贺英 曹旺斌 杨丽杰 霍贵成 |
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| 作者单位： | 1. 河北农业技术师范学院,昌黎,066600
2. 东北农业大学动物营养研究所,哈尔滨,150030 |
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| 摘 要： | 为了观察不同梯度大豆抗营养因子（Ａｎｔｉｎｕｔｒｉｔｉｏｎａｌｆａｃｔｏｒｓ、简称ＡＮＦｓ）对不同生理阶段的生长蛋鸡的影响，本试验采用４８０只海兰褐蛋用雏鸡，以熟豆饼日粮为对照，从３或９周开始给饲３个水平的生大豆日粮（４％，９％和１３％），每期每个日粮４个重复。在３～８周和９～１８周观察雏鸡的采食量，日增重和饲料效率。在第８和１７周分别测定各组的粗蛋白质和干物质的代谢率。并于８、１３和１８周末每个重复随机抽取试鸡两只屠宰，观察小肠内胰蛋白酶活性的变化。结果表明，３个水平的大豆ＡＮＦｓ对育雏期雏鸡的增重没有影响，育成期对照组的增重明显高于采食生大豆组（Ｐ＜０．０５），大豆ＡＮＦｓ使饲料效率降低，但对氮和干物质的代谢影响不显著；８、１３和１８周龄雏鸡小肠内胰蛋白酶活性亦无显著变化。
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| 关 键 词： | 大豆ANFs 生长蛋鸡 生产性能 氮代谢 小肠胰蛋白酶活性 |
Effects of Raw Soybean Levels in Diets on the Performance,N Metabolism and Trypsin Activities in Small Intestine of Pullets |
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| He Ying,Chao Wangbin,Yang Lijie,Huo Guicheng.Effects of Raw Soybean Levels in Diets on the Performance,N Metabolism and Trypsin Activities in Small Intestine of Pullets[J].Chinese Journal of Animal Science,1998,34(5):5-8. |
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| Authors: | He Ying Chao Wangbin Yang Lijie Huo Guicheng |
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| Abstract: | A trail was conducted with 480 female chickens.The diets containing three levels of raw soybean(4%,9%and 13%)were fed to the birds at the end of the 2nd or 8th week by using the heated soybean meal diets as the control.Each dietary included four replicates with 18 or 16 chickens per group.Two chickens of each group were at random selected for determinations of trypsin activities in small intestines at the 8,13 or 18 weeks old.The results indicated that,the gains were no significantly difference among the pullets fed control,4%,9% or 13% raw soybean diets ,but the feed intakes and feed conversion effieiency were greater in chieks fed raw soybean diets than control.Respite of the birds fed raw soybena from the 2 or 8 weeks old ,the nitrogen metabolite and trypsin activities in small intestines were not affected by the ANFs (P>0.05). |
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| Keywords: | Raw soybean Pullet Perforrnances N metabolite Trypsin activities Small intestines |
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