论文部分内容阅读
什么叫家鱼催产期?通俗地讲是指草鱼、青鱼、鲢、鳙的亲鱼从性腺成熟以后到开始退化以前的一段适于催产的时期。这个时期很短,鲢、鳙鱼约有30天,草鱼更加短。因此,切实抓住这个时机十分重要。催产期主要依据亲鱼的成熟程度和气候、水温等因素而定。一般初产的亲鱼,成熟得稍晚些
What is the home fish ophthalmosis? Popular refers to the grass carp, black carp, silver carp, 鳙 broodstock from gonadal maturity before beginning to degenerate for a period suitable for oxytocin. This period is very short, silver carp, bighead carp about 30 days, grass carp shorter. Therefore, it is very important to seize this opportunity. Ovulation mainly depends on the maturity of the broodstock and climate, water temperature and other factors. General primiparous broodstock, mature later