Female specific proteins, containing vitellin (Vn) and vitellogenin (Vg), are main nutrition resource in early stage of life for oviparous animals.

雌性蛋白包括卵黄蛋白和卵黄蛋白原，是卵生类动物早期生命阶段中主要的营养物质来源。

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We studied relationships among body size, clutch size, and egg size and female reproductive characteristics in five species of oviparous colubrid snakes from Zhoushan islands, Zhejiang, China.

阐明五种游蛇科动物雌体大小、窝卵数和卵大小之间的关系和雌性繁殖特征的种间差异。

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