本试验通过提温培育亲鱼,将怀头鲇的繁殖时间提前了17天。从4月5日开始逐渐提高水温,到4月20日水温达到20℃。亲鱼经过39天的培育,于5月24日进行人工催产。共催产20组,实产18组,催产率为90%,共产约200万粒卵;抽样估算受精率为93.5%,受精卵约为187万粒;孵出水花约160万尾,孵化率为85.56%。试验表明,怀头鲇在寒区可以提早15天以上进行繁殖。 In this experiment, raising the broodstock by raising temperature, the breeding time of the capitatum was raised by 17 days. From April 5 began to gradually raise the water temperature, April 20, the water temperature reached 20 ℃. Broodstock after 39 days of cultivation, on May 24 artificial labor. 20 groups were co-fertilized and 18 were group-produced. The rate of oxytocin was 90% and the number of co-produced eggs was about 2 million. The estimated fertilization rate was 93.5% and the number of fertilized eggs was about 1.87 million. 85.56%. Experiments show that the birdhead can be reproduced more than 15 days in the cold area.