5龄蚕喂不同比例嫩叶对饲育成绩的影响

Effect of Rearing with Different Proportion of Tender Mulberry Leaves on 5-Instar Growth

通过对 5龄蚕进行不同比例的嫩叶饲养试验 ,结果表明 :与 5龄全龄期全部用成熟叶饲蚕相比 ,用不同比例的嫩叶饲蚕 ,对饲蚕成绩有不同程度的影响 ,其趋势是随嫩叶比例的提高 ,不良影响的程度越大。当嫩叶比例达到 5 0 %时 ,对茧质、收茧量、生命力等的影响非常明显 ,但嫩叶比例为 2 0 %时 。

The tender mulberry leaves in different proportion were reared to 5-instar silkworms.The silkworms reared with different proportion of tender mulberry leaves grow poorly than those reared with mature leaves of mullberry in the whole growing stage.This trend increases with increasing of the proportion of tender leaves.This nagative effect on cocoon quality, yield and vatality is remarkable when the proporotion of tender leaves accounts for 50% , but not obvious when the proporotion of tender leaves accounts for 20% .