The fermented liquid feed has been used widely in Europe, and there is an increasing interest on this subject.

发酵液体饲料在欧洲已广泛使用，并成为当前人们研究的新热点。

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The fermented liquid feed has been used widely in Europe, and there is an increasing interest on this subject.

发酵液体饲料在欧洲已广泛使用，并成为当前人们研究的新热点。

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