| 不同加工方式苜蓿干草在肉羊瘤胃内的降解及对消化代谢的影响 |
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| 引用本文： | 胡雅洁,贾志海,王润莲,涂吉华,孙江涛,朱晓萍.不同加工方式苜蓿干草在肉羊瘤胃内的降解及对消化代谢的影响[J].中国畜牧杂志,2007,43(17):36-38. |
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| 作者姓名： | 胡雅洁 贾志海 王润莲 涂吉华 孙江涛 朱晓萍 |
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| 作者单位： | 中国农业大学动物科技学院,北京,100094 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 选用12只安装有永久性瘤胃瘘管的1.5岁杂交一代(无角陶赛特×小尾寒羊)肉用羯羊,随机分成3组,研究日粮中不同加工方式(整株、颗粒、草粉)苜蓿干草在瘤胃内的降解及其对肉羊消化代谢的影响。试验结果表明:苜蓿干草经粉碎及颗粒处理后,DM、CP、NDF在瘤胃内的降解率较整株组有显著提高(P<0.05),但ADF降解率未有明显变化(P>0.05)。不同加工方式(整株、颗粒、草粉)苜蓿干草对DM、OM、NDF、ADF表观消化率没有影响(P>0.05),但加工成颗粒及粉料使氮的利用率显著提高(P<0.05)。3种不同加工方式下DM、OM、NDF、ADF表观消化率分别高达71.74%～72.18%、73.67%～74.22%、66.69%～68.48%、45.64%～52.41%。
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| 关 键 词： | 苜蓿 加工方式 整株 颗粒 草粉 肉羊 |
| 文章编号： | 0258-7033（2007）17-0036-03 |
| 修稿时间： | 2006-03-28 |
Effects of Different Processed Alfalfa Hay on Rumen Nutrients Degradation Rate and Digestion and Metabolism in Sheep |
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| HU Ya-jie,JIA Zhi-hai,WANG Run-lian,TU Ji-hua,SUN Jiang-tao,ZHU Xiao-ping.Effects of Different Processed Alfalfa Hay on Rumen Nutrients Degradation Rate and Digestion and Metabolism in Sheep[J].Chinese Journal of Animal Science,2007,43(17):36-38. |
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| Authors: | HU Ya-jie JIA Zhi-hai WANG Run-lian TU Ji-hua SUN Jiang-tao ZHU Xiao-ping |
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| Institution: | College of Animal Science and Technology, China Agricultural University, Beijing 100094, China |
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| Abstract: | The effects of different processed alfalfa hay on degradation rate of nutrient digestion and metabolism in sheep were researched in this study.Twelve crossbred(Small Tail Han-sheep × Poll Dorset) wethers were randomly allotted into 3 treatments.The results showed that with the increase of degradation time,the degradation rates of each nutrients in rumen were increased also;the alfalfa pellet and alfalfa meal had higher(P < 0.05) degradation rates of DM,CP and NDF than whole hay except for the degradation rate of ADF.No significant effects(P > 0.05) of different processed alfalfa hay were found on the apparent digestible rates of DM,OM,NDF and ADF.The apparent digestion rates of DM,OM,NDF,and ADF were 71.74%~72.18%、73.67%~74.22%、66.69%~68.48%、45.64%~52.41%. |
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| Keywords: | alfalfa hay processing method whole hay alfalfa pellet alfalfa meal sheep |
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