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首页> 外文会议>International Conference of the European Aquaculture Society >SEXUAL REVERSAL OF RAINBOW TROUT (ONCORHYNCHUS MYKISS, (WALBAUM 1792)) IN GREECE
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SEXUAL REVERSAL OF RAINBOW TROUT (ONCORHYNCHUS MYKISS, (WALBAUM 1792)) IN GREECE

机译：虹鳟鱼的性逆转（Oncorhynchus mykiss，（Walbaum 1792））在希腊

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摘要

The culture of all-female rainbow trout, Oncorhynchus mykiss (Walbaum, 1792), is considered as one of the most effective solutions to the various problems of early sexual maturation in trout farming. All-female populations of O.mykiss are worldwide desirable because of their late sexual maturity, relatively faster growth and superior flesh quality in comparison to males (Bye & Lincoln 1986). The purpose of the present work is to transfer and apply the technology of producing sperm from sexually reversed trout (masculinised females with XX genotype) in order to achieve production of all-female population. This project is applied in Greece for the first time. Itis considered to be of great significance, especially for the State hatchery, where the annual trout production exceeds 1000 metric tons. The sex reversal can be achieved with direct hormonal treatment (17P- oestradiol). However this method is to be avoided due to human health safety reasons; because the market product has been directly administrated with the specific hormone. This project explores an alternative treatment with 17a-methyltestosteron administration which is applied to the parents and not to the progeny. The hormonal treatment was orally administered to the larvae in order to the female population become male with XX genotype (Johnstone et al. 1979).
机译：全雌性彩虹鳟鱼的文化，Oncorhynchus mykiss（Walbaum，1792）被认为是鳟鱼养殖早期性成熟问题中最有效的解决方案之一。 o.mykiss的全部女性群体是全球所需的，因为他们的性成熟年晚期，与男性相比，相对更快的增长和卓越的肉质质量（Bye＆Lincoln 1986）。本作本作的目的是转移和应用从性逆转鳟鱼（用XX基因型的阳性女性）产生精子的技术，以实现所有雌性人群的生产。该项目首次在希腊应用。 ITIS被​​认为具有重要意义，特别是对于国家孵化场，年度鳟鱼产量超过1000公吨。性逆转可以通过直接激素治疗（17p- oStrakiol）来实现。然而，由于人类健康安全原因，将避免这种方法;因为市场产品已直接施用特定的激素。该项目探讨了替代治疗，其中17A-甲基上药酮局施用于父母而不是后代。口服荷尔蒙治疗给幼虫给予幼虫，以使女性群体用XX基因型成为雄性（Johnstone等1979）。

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