| 短体副鳅的胚胎发育观察 |
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| 引用本文： | 王宝森,姚艳红,王志坚.短体副鳅的胚胎发育观察[J].淡水渔业,2008,38(2):70-73. |
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| 作者姓名： | 王宝森 姚艳红 王志坚 |
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| 作者单位： | 西南大学生命科学学院//水产科学重庆市市级重点实验室//三峡库区生态环境教育部重点实验室,重庆,400715 |
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| 摘 要： | 2005年3~4月和2006年3~4月进行了短体副鳅(Paracobitis potanini)的人工繁殖试验,获得了数批受精卵,期间对受精卵胚胎发育过程进行了连续观察。短体副鳅成熟卵圆形,卵膜强粘性,卵径2.3~2.53 mm,平均2.41 mm,水温17~19℃时胚胎发育历时58 h 20 min,共划分为26时期。未受精卵能够发育到原肠中期,后全部死亡。初孵仔鱼全长3.5 mm左右,卵黄囊长勺型,通体透明无色素。
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| 关 键 词： | 短体副鳅(Paracobitis potanini) 胚胎发育 受精卵 |
| 文章编号： | 1000-6907-（2008）01-0070-04 |
| 收稿时间： | 2007-10-12 |
| 修稿时间： | 2007年10月12 |
Embryonic Development of Paracobitis potanini |
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| WANG Bao-sen,YAO Yan-hong,WANG Zhi-jian.Embryonic Development of Paracobitis potanini[J].Freshwater Fisheries,2008,38(2):70-73. |
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| Authors: | WANG Bao-sen YAO Yan-hong WANG Zhi-jian |
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| Abstract: | From March 2005 to April 2006,the sperm of Paracobitis potanini were obtained by artificial propagation,and the embryonic development process was continuously observed.The ovium is in oval shape with strong membrane-viscous.The egg diameter arranges from 2.3 mm to 2.53 mm,with the average of 2.41 mm.Under the temperature of 17~19 ℃,the embryonic development lasts 58 h and 20 min,and it can be divided into 26 periods.Unfertilized eggs could come to mid gastrula,but all died after that.Newly hatched larvaes with long spoon-yolk sac are about 3.5 mm′s long and they are transparent without any pigments. |
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| Keywords: | Paracobitis potanini embryonic development ovium |
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