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首页> 外文期刊>魚病研究 >Development of Heterobothrium ecuadori (Monogenea: Diclidophoridae) in Bullseye Puffer Fish Sphoeroides annulatus under Experimental Conditions
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Development of Heterobothrium ecuadori (Monogenea: Diclidophoridae) in Bullseye Puffer Fish Sphoeroides annulatus under Experimental Conditions

机译：在实验条件下牛眼河豚鳞翅目中的厄瓜多氏杆菌（Monogenea：Diclidophoridae）的发育

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摘要

Heterobothrium ecuadori is a gill monogenean infecting the gills of the bullseye puffer fish Sphoeroides annulatus and feeding fish blood. This experimental study was performed to describe the juvenile stages of H. ecuadori and to determine the time required to reach the adult stage at 20-23°C. Uninfected bullseye puffer fish were exposed to oncomiracidia and sampled at intervals to obtain worms of different developmental stages. Between 5 and10 days after the exposure, the first and second pairs ofclamps were observed in worms along with the emergence of the third clamp. Four pairs of clamps were observed on day15, and primordial male copulatory organ, testes and ovary were found on day 20. Adult parasites started to appear between 25 and 30 dayspost-infection. The time required for egg laying was estimated to be 33 days, based on the first collection of eggs in the rearing water.
机译：厄瓜多尔杂种轮虫是一种单基因gene，可感染牛眼河豚Sphoeroides annulatus的g并喂鱼血。进行该实验研究以描述厄瓜多尔氏菌的幼体阶段，并确定在20-23°C达到成年阶段所需的时间。将未感染的牛眼河豚暴露于酸痛，并定期取样以获得不同发育阶段的蠕虫。暴露后5至10天之间，在蠕虫中观察到第一对和第二对钳位以及第三对钳位的出现。在第15天观察到四对钳夹，在第20天发现原始男性交配器官，睾丸和卵巢。成虫寄生虫在感染后25至30天开始出现。根据在饲养水中第一次收集卵，估计产卵时间为33天。

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