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 .