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The Influence of Cell Size in Varroa Reproduction

A study made by Mia Davidsson in 1992 at the Swedis...

如何采用手捻的方法辨别蜂王浆质量？

取一点蜂王浆用拇指和食指细细捻磨，新鲜蜂王浆手感细腻，稍有黏...