| 日粮ADF水平对生长肉兔氮平衡、免疫及消化酶活性的影响 |
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| 引用本文： | 晁洪雨,李福昌.日粮ADF水平对生长肉兔氮平衡、免疫及消化酶活性的影响[J].中国饲料,2007(15):18-20. |
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| 作者姓名： | 晁洪雨 李福昌 |
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| 作者单位： | 1. 山东临沂师范学院动物科学系
2. 山东农业大学动物科技学院 |
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| 摘 要： | 选用100只体重相近的35日龄断奶新西兰肉兔,随机分为5组,分别饲喂5种酸性洗涤纤维(ADF)水平(13%、16%、19%、22%和25%)的日粮,探讨我国生长肉兔适宜的ADF需要量。结果表明:日粮ADF水平对2月龄肉兔氮沉积、氮表观消化率和利用率影响显著(P<0.05),对可消化氮及可消化氮转化为沉积氮的效率无显著影响(P>0.05)。随ADF水平升高,试兔胸腺指数先增加后降低(P>0.05),脾脏指数呈不断增大趋势(P>0.05)。日粮ADF水平对十二指肠淀粉酶和盲肠纤维素酶活性影响显著(P<0.05),对胰蛋白酶和胰凝乳蛋白酶活性无显著影响(P>0.05)。综合分析,断奶至2月龄肉兔适宜的ADF水平为19%。
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| 关 键 词： | 酸性洗涤纤维 氮沉积 免疫 消化酶 新西兰兔 |
| 文章编号： | 1004-3314(2007)15-0018-04 |
Effects of different ADF levels on nitrogen balance, immunology and digestive enzyme activities in meat rabbits |
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| Chao Hongyu,Li Fuchang.Effects of different ADF levels on nitrogen balance, immunology and digestive enzyme activities in meat rabbits[J].China Feed,2007(15):18-20. |
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| Authors: | Chao Hongyu Li Fuchang |
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| Institution: | Chao Hongyu Li Fuchang |
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| Abstract: | One hundred 35 days old weaned rabbits with similar body weight were randomly divided into 5 groups,which were fed diets with different acid detergent fiber(ADF) levels(13 %,16 %,19 %,22 % and 25 %,respectively) to discuss the appropriate requirements of ADF in growing meat rabbits.The results showed as follows:the retention,apparent digestibility and utilization of nitrogen,the activities of small intestinal amylase and caecal cellulase were significantly affected by the ADF level of dietary,but it did not markly influence the digestible nitrogen,the thymus index,the spleen index and the activities of small intestinal trypsin and chymotrypsin.According to these results,the appropriate dietary ADF level for weaning to 2-month old meat rabbits was 19 %. |
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| Keywords: | ADF nitrogen retention immunology digestive enzyme New Zealand rabbit |
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