]*>","")" /> Study on Degradation Rate of Dry Matter and Crude Protein of Asafetida Culture Substrates in Rumen
Xinjiang Agricultural Sciences

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Study on Degradation Rate of Dry Matter and Crude Protein of Asafetida Culture Substrates in Rumen

LI Feng-ming;ZHENG Wei-hua;GONG Yi-chun;LIU Hai-long;LIU Jia   

  • Received:2010-08-25 Revised:2010-08-25 Online:2010-08-25 Published:2010-08-25

阿魏菌糠干物质和粗蛋白瘤胃降解率的测定

李凤鸣;郑伟华;宫译淳;刘海龙;刘佳   

  1. 新疆农业大学动物科学学院动物营养实验室,乌鲁木齐,830052;新疆农业科学院中心实验室,乌鲁木齐,830091





摘要： [目的]测定阿魏菇培养基培养前及培养末期干物质(DM)和粗蛋白(CP)的降解率.[方法]选用3只安装有永久性瘤胃瘘管的绵羊,采用尼龙袋法测定阿魏菇培养基培养前及培养末期的干物质和粗蛋白在瘤胃2、6、12、24、32、48和72 h的降解率.[结果](1)同一时间点培养前DM和CP降解率低于培养末期;(2)干物质动态降解率分别为dp(培养前)=3.351+22.588×(1-e-0.033),n=7,R2=0.993;dp(培养末期)=5.814+38.277×(1-e-0.023)(n=7,R2=0.994).(3)粗蛋白动态降解率分别为:dp(培养前)=5.671+20.085×(1-e-0.053),n=7,R2=0.968;dp(培养末期)=8.715+20.731×(1-e-0.943),n=7,R2=0.943.[结论]培养基经过阿魏菇生长后,粗蛋白含量升高,粗纤维含量下降,并且干物质和粗蛋白在瘤胃中潜在降解率提高.