• 已经产卵消耗的大西洋鲑或其他鱼提高直到进入咸水时候。在卑诗省被称为背部流下下游河川

    A spawned out or spent Salmo salar or other salmonid up until the time it enters salt water. Also called dropback or downriver in British Columbia.

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  • 本文综述了国外近年西洋营养需要饲料原料替代研究进展,国内开展大西洋鲑营养需要的研究开发系列配合饲料提供参考

    Advances on the nutrient requirement of Atlantic salmon were reviewed in order to provide reference for further researches and exploitations of new formulated feeds.

    youdao

  • 本文综述了国外近年西洋营养需要饲料原料替代研究进展,国内开展大西洋鲑营养需要的研究开发系列配合饲料提供参考

    Advances on the nutrient requirement of Atlantic salmon were reviewed in order to provide reference for further researches and exploitations of new formulated feeds.

    youdao

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