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首页> 外文期刊>Journal of Ichthyology >Gonadal Condition, Sperm Motility, and Initial Stages of Embryonic Development in Freckled Goatfish Upeneus tragula (Mullidae)
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Gonadal Condition, Sperm Motility, and Initial Stages of Embryonic Development in Freckled Goatfish Upeneus tragula (Mullidae)

机译：有雀斑的山羊鱼Upeneus tragula（Mullidae）的性腺条件，精子活动力和胚胎发育的初期阶段。

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摘要

Development of sex cells, sperm motility, and initial stages of embryonic development are described in a tropical representative of the family Mullidae, freckled goatfish Upeneus tragula, from the coastal zone of Vietnam. In Nha Trang Bay, the gonadsin the majority of sexually mature females are at IV, IV—V, and VI—IV maturity stages over the entire year, and the type of oogenesis is continuous. Anomalous structure of oocytes is registered in 15% of investigated females. In Ha Long Bay, the gonadsof almost all sexually mature females are at maturity stage II in December. In adult males, spermatozoa are the most numerous in elongated spermiducts. Based on computer-assisted analysis of motility of spermatozoa removed from a spermiduct and activated in marine water, sperm velocity reaches 53 mum/s in 1 min after activation, and the duration of progressive movements of spermatozoa does not exceed 5 min.
机译：性细胞的发育，精子活力和胚胎发育的初始阶段在来自越南沿海地区的Mullidae家族的热带代表（雀斑山羊鱼Upeneus tragula）中有描述。在芽庄湾，一整年性交成熟的雌性中的性腺都处于IV，IV-V和VI-IV的成熟阶段，卵子发生的类型是连续的。在15％的调查女性中，卵母细胞的结构异常。在下龙湾，几乎所有具有性成熟能力的雌性腺都在十二月成熟。在成年男性中，精子在细长的精子中数量最多。根据从精囊中取出并在海水中活化的精子运动的计算机辅助分析，精子的速度在活化后1分钟内达到53 mum / s，并且精子进行性运动的持续时间不超过5分钟。

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