奶牛日粮中不同水平酵母硒对表观消化率的影响

张丽娟;姚鹃;谭斌;许宗运

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

ZHANG Lijuan;YAO Juan;TAN Bin;XU Zhongyun

. 2007, (8): 66 -68 .