鱼种是夺取养鱼高产优质的物质基础。鱼种培育是渔业生产的重要环节之一。要将小规格、瘦弱的鱼种培育成膘肥体壮的大规格鱼种,关键在于秋季培育,具体应把握好以下技术措施: 1.改善鱼种的生活环境 原培育鱼种的鱼池,经过几个月的饲养,其水质逐渐老化,溶氧降低,饵料生物减少。致病微生物和有害物质增多,对鱼种生长不利。特别是个体小的鱼种摄食能力差,生长受到抑制。 Fish species is to capture high-quality fish culture material basis. Fish breeding is an important part of fishery production. The key to cultivating small size and emaciated fingerlings into big size and large size species is to cultivate in autumn. The following technical measures should be taken: 1. Improve the living environment of fish species. Feeding for several months, the water quality gradually aging, dissolved oxygen decreased, food organisms reduced. Pathogenic microorganisms and harmful substances increase, detrimental to the growth of fish species. In particular, small individual species feeding ability is poor, growth is inhibited.