鱼种是渔业生产优质高产高效的关键。为使鱼种长得膘肥体壮,安全度过漫长的寒冬,必须强化鱼种的秋季培育。经我地渔场和养鱼专业户多年的生产实践,对秋季如何强化培育鱼种,得出以下几点诀窍。一、改善鱼种环境。原培育鱼种的池塘,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,导致病原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。因此,应设法改善鱼种生 Fish species are the key to high quality, high yield and high efficiency of fishery production. In order to make the fish grow fat and strong, safe long over the winter, we must strengthen the cultivation of fish species in the fall. After many years of production practices in our fishing grounds and fish farms, we have learned the following tips on how to strengthen the cultivation of fish species in autumn. First, improve the species environment. After several months of breeding, the ponds of the original cultivated species gradually age, the dissolved oxygen is reduced, the biological reduction of food organisms results in the increase of pathogenic microorganisms and harmful substances, which is unfavorable to the growth of fish species, especially the feeding ability of individual small species Poor, growth is inhibited. Therefore, we should try to improve the fish growing