摘要 为探索中国大鲵的繁殖特点，人工催产20尾雄性亲鲵，催产率达90％，但产活力精子雄鲵的比例只有20％，表明大鲵雄性不育的比例高达80％；对产出精子研究显示，大鲵活力精子在不同硬度水体中的存活时间不同。适应硬度范围内，大鲵活力精子存活时间随水体硬度升高而缩短，当水体硬度为0．41 mmol/L 时，大鲵精子最长存活161 s ；硬度为3．14 mmol/L 时，大鲵精子最长存活65 s ，开展大鲵人工繁殖时，应关注雄性不育及水体硬度对受精率的影响。
Abstract： Twenty Chinese giant salamander A ndrias davidianus males were artificially induced to spawn , with spawning success of 90% .However ,only 20% of the male spawners were found to release the vital sperm ,indicates that 80% of the male spawners were of sterile males . The vitality test showed that survival period of the sperm motility was different in the water with different hardness . The survival period of the sperm motility was found to be decreased with increase in water hardness within water hardness of 0 .17 ~ 2 .136 mmol/L .The salamander sperm showed the longest life span (161 s) at water hardness of 0 .41 mmol/L .On the contrary ,the minimal survival period (65 .4 s )was observed in the sperm at water hardness in the 3 .14 mmol/L .So we should pay attention to the problem of male sterile and effects of water hardness on fertility when we carry out artificial reproduction of Chinese giant salamander .
收稿日期: 2013-07-25
引用本文:
乔志刚,刘晓翠,马龙,张卫芳,李永东. 人工催产后雄性中国大鲵产精状况分析[J]. , 2013, (7): 404-407.
QIAO Zhi-gang,LIU Xiao-cui,MA-Long,ZHANG Wei-fang,LI Yong-dong. Spermatogenous Analysis of Chinese Giant Salamander Males Which Are Induced to Spawn. , 2013, (7): 404-407.
