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yang zhi yu lei de yue dong
Author(s): 
Pages: 20
Year: Issue:  11
Journal: China Fisheries

Keyword:  越冬期间养殖鱼类越冬池摄食量体质下降养殖生产水温休眠状态鱼种亲鱼;
Abstract: <正> 秋末,当水温下降到7℃以下,大部分鱼类摄食量显著下降,冰封后有的鱼类潜入水底,进入休眠状态,这段时间称为鱼类的越冬期.在养殖生产中,为保证鱼类安全渡过越冬期,防止死亡或体质下降和亲鱼卵巢退化等,需要采取一定的措施.
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