Araujo P, Bressan C R
Ann Parasitol Hum Comp. 1977 Sep-Oct;52(5):531-7.
In Ascaridia galli larvae artificially hatched after 11 and 12 days of incubation at 25 degrees C, in larger frequency than in larvae hatched either after 10 and after 14 days of incubation, two different cuticles detached from their bodies were observed. These two detached cuticles indicate that such larvae had undergone two moults before hatching and, consequently, that the infective stage of A. galli is the third larval stage.
在鸡蛔虫幼虫于25摄氏度下孵化11天和12天后人工孵化出的幼虫中，与孵化10天和14天后孵化出的幼虫相比，观察到有更高频率的情况，即有两层不同的角质层从它们的身体上脱落。这两层脱落的角质层表明，此类幼虫在孵化前已经历了两次蜕皮，因此，鸡蛔虫的感染阶段是第三幼虫期。
