亲鱼催产顺利与否,除与亲鱼的培育管理密切相关外,还应重视催产亲鱼的选择。应注意以下几个方面: 一、检查亲鱼发育情况,确定催产先后次序。一般在正常催产时间前10—15天,可选择一个有代表性的池塘进行检查,只要大多数雄鱼能挤出浓稠的精液,即说明此塘的雄鱼一般已成熟。在池养条件下,一般以草、白鲢最先成熟,鳙鱼次之,青鱼最后。二、掌握物候特点。一般麦子发黄,蝌蚪大批出现,鲤鲫鱼普遍产卵,或草 Pro-fish prolapse or not, in addition to closely related to the cultivation and management of broodstock, but also should pay attention to the choice of brooding broodstock. Should pay attention to the following aspects: First, check the broodstock development, determine the sequence of oxytocin. Usually 10-15 days before the normal time of oxytocin, a representative pond may be selected for inspection, as long as most males can squeeze thick semen, indicating that the males in this pond are generally mature. In the pond raising conditions, generally grass, silver carp first maturity, catfish second, herring last. Second, to master the phenological characteristics. General wheat yellow, tadpoles appear in large numbers, carp crucian generally lay eggs, or grass