牛用微生态制剂

王美秀,郝永清,张爱荣,韩永军,韩彩霞,张虎

Comparation of the Effects of Three Types of Salt-Blocks in Dairy Cows Feeding

畜牧与饲料科学 . 2004, (4): 4 -4 . DOI: 10.12160/j.issn.1672-5190.2004.04.023