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一、选择的个体必须是已成熟的或能在该繁殖季节达到性成熟的。一般可根据饲养时间,个体大小和外部形态等判断是否已性成熟或可达性成熟。为了保证当年能产鱼,提高亲鱼的繁殖力和精卵质量,宜选择饲养1年以上、生长速度相时较快的、体重在0.5～1公斤的个体作亲鱼。过小繁殖力低,过大则操作不便。 二、选择作亲本的个体必须健壮活泼,无伤无病,色泽正常,丰满度适
First, the individual selected must be either mature or sexually mature during the breeding season. Generally according to feeding time, individual size and external shape to determine whether the sexual maturity or reachability. In order to ensure that the fish can be produced in that year and improve the fertility and egg quality of the broodstock, it is advisable to choose broodstock that have been kept for more than 1 year with fast growth rate and 0.5-1kg of body weight. Too little fertility, too large, inconvenient to operate. Second, the individual selected as the parent must be robust, live without injury, normal color, fullness