›› 2007, Vol. 34 ›› Issue (8): 66-68.

• 奶业专栏 • 上一篇    下一篇

奶牛日粮中不同水平酵母硒对表观消化率的影响

张丽娟1, 姚鹃2, 谭斌2, 许宗运3
  

  1. 1.新疆农业大学,乌鲁木齐 830052;2.安琪酵母股份公司,宜昌 443003;3.山西农业大学,太谷 030800
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-08-20 发布日期:2007-08-20

Effects of Different Supplementary Concentration Se-yeast in Dairy Ration on Digestibility

ZHANG Lijuan1,YAO Juan2,TAN Bin2,XU Zhongyun3
  

  1. 1.Xinjiang Agricultural University, Urumqi 830052, China; 2.Angel Yeast Co Ltd, Yichang 443000, China;3.Shanxi Agricultural University, Taigu 030800, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-08-20 Published:2007-08-20

摘要: 本试验选取8头体况、奶产量、泌乳天数相近的奶牛,采用4×4拉丁方设计分为4组分别添加4种不同的预混料:对照组不添加酵母硒而添加亚硒酸钠,Se含量为0.3 mg/kg日粮,处理组添加酵母硒,硒水平分别为0.3、0.45、0.6 mg/kg日粮,试验期全天收集牛粪,对常规营养成分进行测定。结果表明:与对照组相比,添加酵母硒0.45 mg/kg组可以提高奶牛对OM、NDF、ADF、纤维素(CEL)、半纤维素(HC)、钙、磷的表观消化率(P<0.01)和粗蛋白质的消化率(P<0.05);和其他酵母硒处理组相比,0.45 mg/kg组的养分表观消化率也较高。

关键词: 酵母硒; 添加量; 表观消化率

Abstract: 8 cows were used in a 4×4 Latin squre design to study the effect of different supplementary concentration Seyeast on apparent digestibility. control:Na2SeO3, Se 0.3 mg/kg DM; Seyeast, the Se concentration were 0.3、0.45、0.6 mg/kg DM. The result is that: compare to control, 0.45 mg/kg DM could enhance the apparent digestibility of OM, NDF,ADF, HC,CEL, Ca, P(P<0.01)and CP(P<0.05); compare to other treated groups, the cows with 0.45 mg/kg also had higher nutrient apparent digestibility.

Key words: Se-yeast; different supplementary concentration; apparent digestibility 

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