Advances in the study on vitellogenesis and its hormonal control in crustacea .

甲壳动物卵黄发生及其激素调控研究进展。

Vitellogenesis and embryonic development were not correlated with photoperiod , temperature or precipitation .

卵黄发生及胚胎发育与光周期、温度和降雨量无关。

Juvenile hormone ( jh ) synthesized and released from endocrine gland corpus allatum ( ca ) plays important roles in insect metamorphosis , vitellogenesis and reproduction .

昆虫的青春激素主要是由咽侧腺生成与分泌，并且对虫体的生长、变态、卵黄生成与生殖等功能上扮演重要的角色。