鱼种是高速度发展养鱼生产的前提。我区地处西北寒冷地区,鱼类最优生长期只有九十天左右。随着养鱼生产的发展,培育大规格的优质鱼种越来越显得重要和迫切。当今各地都在采取技术措施以提高鱼种生长的速度。1978年我站在饲喂草鱼种的饲料中拌入一定剂量的生长素,取得较好效果。 Fish species is the premise of high-speed development of fish production. My area is located in the cold northwest, the optimal growth period of fish is only about ninety days. With the development of fish farming, it is becoming more and more important and urgent to cultivate large-scale and high-quality fish species. Nowadays, technical measures are being taken to improve the growth of fingerlings. In 1978, I stood in the feed of grass carp feed mixed with a certain amount of auxin, and achieved good results.