蚕种 [
cán zhǒng]

graine
- 他们成功地培育了优良的蚕种。
They succeeded in cultivating fine breeds of silkworms. - 摘要为了优化原蚕饲养的营养条件,提高蚕种繁育质量,对几个实用桑品种饲养的原蚕饲育成绩进行了初步调查与分析。
In order optimize nutrition conditions for the parent silkworm rearing and raise the quality of silkworm eggs, the rearing results of parent silkworm fed on various commercial mulberry races were investigated and analyzed. - 不同蚕品种具有不同的蚕体颜色、斑纹、斑纹颜色和形状、体型等形体特征,这种形体特征与4、5龄大蚕的形体特征不同,据此发明了一种根据蚁蚕期形体特征检验蚕种杂交率的方法。
That is firstly establishing the body characteristic image and character data-base of every breed at the newly-hatched silkworm stage by anatomical microscope and photography equipment, and then comparing the body characteristic of the silkworm breed to be identified with the corresponding characteristics of every breed having known in the data-base, and making a statistic deduction on the inspectional results in the light of probability distribution theory and sample deduction method.
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