齐口裂腹鱼人工育苗技术的初步研究

Research on Artificial Breeding Technique of Schizothorax prenanti

不同温度下,人工孵化齐口裂腹鱼受精卵,孵出仔鱼约30万尾,鱼苗,培育池为圆形水泥池,鱼苗开口饵料用品牌鱼用微粒子饲料,后期用微粒子饲料和自制饼状软颗粒饲料交替投喂,经45 d培育,不同放养密度下,鱼苗平均规格达到3.01 cm,平均成活率达到80.04%。试验结果表明,15℃人工孵化齐口裂腹鱼受精卵,孵化率最高;鱼用微粒子饲料完全替代水蚤等天然开口饵料,人工培育的齐口裂腹鱼鱼苗生长良好,成活率高。

Artificially incubate oosperm of Schizothorax prenanti and hatch about 300 000 tail larvae un- der different temperature. Cultivating pool of fry whose opening bait is micro particle feed is circular cement pool. Later, feed the fry with micro particle and homemade pie soft granule feedstuff alternately, with 45 d cul- tivation, under different stocking density, the average size of fry is 3.01 cm, the average survival rate reached 80.04%. Test results show that the hatching rate of oosperm of S. prenanti at 15 ℃ is highest; Fish with micro particle feed entirely replace natural openings such as daphnia, artificial cultivation of S. prenanti larvae grow well, the survival rate is high.