...，0 ～Ⅲ龄组，性腺未成熟，生长最快，平均生长指标可高达49.43; 成鱼生长稳定阶段，Ⅲ～Ⅶ龄组， 性腺发育 ( gonad development )，体长和体重增长相对稳定，生长指标平均稳定在35.77; 生长衰老阶段，Ⅶ龄组以上，生长已趋缓慢，生长指标低于19.83。
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stage of gonad development 性腺发育阶段
stages of gonad development 卵巢分期
gonad development characteristic 性腺发育特征
index of gonad development 性腺指数
mathematic model of gonad development 性腺发育数学模型
development of gonad 性腺发育
These results provide useful fundamental information for further studies on silkworm gonad development.
研究结果为理解家蚕性腺发育提供了信息。
The annual cycle of gonad development and the fertilization of the nemertean, Procephalothrix simulus, were studied by histological method.
用组织切片法对扁额原细首纽虫周年性腺发育及受精过程进行了初步的研究。
The experiment was conducted to study the effects of cold stress and selenium levels on gonad development and relative hormone in young laying ducks (12 ~ 16 weeks) in cage.
本试验旨在研究低温和硒对育成期(12 ~ 16周龄)笼养蛋鸭性发育及相关激素的影响。
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