Produce feed by using hen dropping and straw powder fermented by EM and make experiment on using the feed to raise cow.
利用EM发酵鸡粪与秸秆粉制作饲料，并将发酵料应用于奶牛生产进行试验。
Produce feed by using hen dropping and straw powder fermented by EM and make experiment on using the feed to raise cow.
利用EM发酵鸡粪与秸秆粉制作饲料，并将发酵料应用于奶牛生产进行试验。
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