摘要
用静水孵化法,探讨了孵化用水pH值在5.5～10.0时异育银鲫(Carassiusauratus gibelio)受精卵的发育情况。结果表明,水温为(21±2)℃、pH8.0时,异育银鲫胚胎发育时间最短,为92.8 h,孵化率和成活率最高,分别为65.6％和98.3％;pH为5.5和10.0时,孵化率最低,分别为47.7％和47.4％。
Embryonic development of Carassius auratus gibelio were studied in the standing water with pH values ranging 5. 5-10. 0. The results showed the fastest speed of the embryonic develop-ment(92. 8 h) was at pH8. 0. Furthermore,the hatching rate and survival rate were the highest, which reached 65% and 98. 3% respectively. The lower hatching rates (47. 7% and 47. 4%)ware at pH5. 5 and pH10. 0.
出处
《湖北农学院学报》
2003年第2期105-107,共3页
Journal of Hubei Agricultural College
关键词
孵化水体
PH值
异育银鲫
胚胎发育
受精率
孵化率
成活率
畸形率
Carassius auratus gibelio
hatching water pH
embryonic development speed
fertilization rate
hatching rate
survival rate
aberration rate
