| 瘤胃保护性赖氨酸过瘤胃效果的评价 |
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| 引用本文： | 李春蕾,韩占强,林英庭,孙国强,王利华,孙建凤.瘤胃保护性赖氨酸过瘤胃效果的评价[J].中国奶牛,2012(3):12-15. |
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| 作者姓名： | 李春蕾 韩占强 林英庭 孙国强 王利华 孙建凤 |
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| 作者单位： | 1. 烟台市动物疫病预防与控制中心,烟台,264008
2. 青岛农业大学动物科技学院,青岛,266109 |
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| 摘 要： | 本研究采用瘤胃尼龙袋法和运动尼龙袋法测定了不同比例棕榈油脂肪粉包被赖氨酸的瘤胃降解率及小肠释放率,结果发现:以30%、40%、50%和60%的棕榈油脂肪粉对赖氨酸进行包被而制备的RPLys-Ⅰ、RPLys-Ⅱ、RPLys-Ⅲ和RPLys-Ⅳ,48 h瘤胃降解率依次为62.42%、55.12%、50.34%和47.21%;24h小肠消失率依次为80.27%、67.05%、64.92%和54.80%。综合分析认为,棕榈油脂肪粉包被比例以50%为宜。
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| 关 键 词： | 棕榈油脂肪粉 过瘤胃保护性赖氨酸 瘤胃降解率 小肠释放率 |
Effect Evaluation of Rumen-protected Lysine in Dairy Cows |
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| LI Chun-lei,HAN Zhan-qiang,LIN Ying-ting,SUN Guo-qiang,WANG Li-hua,SUN Jian-feng.Effect Evaluation of Rumen-protected Lysine in Dairy Cows[J].China Dairy Cattle,2012(3):12-15. |
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| Authors: | LI Chun-lei HAN Zhan-qiang LIN Ying-ting SUN Guo-qiang WANG Li-hua SUN Jian-feng |
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| Institution: | 1. Yantai Center for Animal Disease Control and Prevention, Yantai 2. Qingdao Agricultural Univevsity, College of Animal Science and Technology, 264008; Qingdao 266109) |
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| Abstract: | The rumen degradability and small intestine disappearance rate of rumen-protected methionine were studied with nylon bag method and moving nylon bag method. RPLys- Ⅰ, RPLys- Ⅱ, RPLys-Ⅲ and RPLys-Ⅳ were made by lysine with 30%, 40%, 50% and 60% fat powder Qf palm oil, respectively. The results showed that the rumen degradability of RPLys- I, RPLys-H, RPLys-HI and RPLys-IV in 48 hours were 62.42%, 55.12%, 50.34% and 47.21%, and the small intestine disappearance rate in 24 hours were 80.27%, 67.05%, 64.92% and 54.80%. In conclusion, the optimal coating proportion was 50%. |
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| Keywords: | Fat powder of palm oil Rumen-protected lysine Rumen degradability Small intestine disappearance rate |
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