Vitellogenin is the key factor in vitellogenesis in insects.

卵黄原蛋白是昆虫卵黄发生的关键物质。

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Vitellogenesis is regulated by hormones. There are obvious differences between hard ticks and soft ticks in hormonal effects and sorts.

蜱类卵黄发生受激素调控，激素的作用与作用激素的种类在硬蜱和软蜱中表现出较大差别。

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Vitellogenesis is regulated by hormones. There are obvious differences between hard ticks and soft ticks in hormonal effects and sorts.

蜱类卵黄发生受激素调控，激素的作用与作用激素的种类在硬蜱和软蜱中表现出较大差别。

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