The effects of bacillus subtilis natto on the growth, performance and weaning age of sucking calves were investigated.

研究添加的纳豆芽孢杆菌对断奶前犊牛生长状况、生产性能、断奶日龄等的影响。

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Bacillus subtilis natto has been authorized to be the microbiological feed additive. The research on the effects of bacillus subtilis natto as feed additive for dairy cattle is rare.

纳豆芽孢杆菌已被我国饲料主管部门批准为微生物饲料添加剂，但是将其做为奶牛饲用微生物的使用效果还缺乏研究。

youdao

Bacillus subtilis natto has been authorized to be the microbiological feed additive. The research on the effects of bacillus subtilis natto as feed additive for dairy cattle is rare.

纳豆芽孢杆菌已被我国饲料主管部门批准为微生物饲料添加剂，但是将其做为奶牛饲用微生物的使用效果还缺乏研究。

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