过高的密度对多育型饲用玉米营养含量的改善不太有利。
It did not avail to reforming of nutritive content for more-bearing forage maize in high density.
摘要 本试验旨在研究饲粮粗蛋白质水平对中华蜜蜂蜂王育王的影响。
Abstract : The objective of this experiment was to explore the effects of dietary crude protein level on the quality of rearing queens for Apis cerana cerana.
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