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近年来,由于常规鱼价格回升,养殖经济效益提高,常规鱼的养殖面积在迅速增加,因此,对各类常规鱼苗的需求量增大,尤其是对品种纯正的鲫鱼苗种的需求量更大。选育好鲫鱼亲本,将会给后期生产打下坚实的的基础。1.亲本选择。鲫鱼亲本要求体格健壮,鳞片、鳍条完整,体表无创伤,不带病原体,2冬龄以上,条重0.15kg以上,以体色青灰、体形窄长的纯正1号银鲫为好。选择鲫鱼亲本时要注意雌雄比例和规格的合理搭
In recent years, the demand for all kinds of conventional fry has increased due to the increase in conventional fish prices and the economic benefits of raising aquaculture, and the conventional fish farming area has been rapidly increasing. In particular, there is a greater demand for purebred species of crucian carp . Breeding good crucian carp, will lay a solid foundation for the latter part of production. 1. Parents choose. Crucian carp required physical robustness, scales, fin complete, non-invasive body surface, no pathogens, more than 2 winter months, the weight of 0.15kg or more, to body color of gray, long, narrow body pure silver carp No. 1 as well. When choosing the crucian carp should pay attention to the proportion of male and female reasonable specifications and take