太平洋鲑苗种培育技术初探

Preliminary Study on Seeds Rearing Technique of Steelhead Salmo Gairdneri

于 2 0 0 4年 1月 2 6日从北京引进太平洋鲑苗种 5 0 0 0尾 ,采用水泥池微流水方式进行苗种培育试验 ,投喂人工配合饲料 ,经过 70d的培育 ,使原来放养规格为平均体长 5 .8cm ,平均体重 3.2g ,增长到平均体长 1 3.5cm ,平均体重 35 .9g ,成活率达 98% ,饲料效率达 74 .8%左右。

Five thousand seeds of Steelhead salmo gairdneri were introduced from Beijing on January 26, 2004. The experiment of seeds rearing was carried out in running water. The initial average length and average weight of seeds was 5.8cm and 3.2g respectively. After 70 day's rearing,the fish fry at average length of 13.5cm and average weight of 35.9g were obtained, and survival was 98%, feed efficiency was about 74.8%.