Eighty-two mid-lactating cows were randomly allocated into eight blocks to receive four treatments, one south and one north block for each treatment.

  • 选择同一栋牛舍的82头泌乳中期奶牛,随机分为8个区组,分别接受4个处理,每个处理有南、北区组各1个。

  • 互联网摘选 2025-01-20 17:13:53

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