An experiment was conducted to study the effects of mixture of Bacillus subtilis and yeast culture named Xusuyi ( XSY ) added into dairy diet on intake and milk production .
研究了乳牛日粮中添加不同比例枯草芽孢杆菌与酵母培养物混合制剂“畜速益”（XSY）对乳牛泌乳量及乳品质的影响。
xsy