| 东方高原鳅的胚胎与胚后发育观察 |
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| 引用本文： | 汪帆,杨瑞斌,樊启学.东方高原鳅的胚胎与胚后发育观察[J].华中农业大学学报,2017,36(6):89-98. |
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| 作者姓名： | 汪帆 杨瑞斌 樊启学 |
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| 作者单位： | 华中农业大学水产学院,武汉,430070 |
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| 基金项目： | 农业公益性行业专项项目（201403012） |
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| 摘 要： | 对东方高原鳅Triplophysa orientalis(Herzenstein)胚胎发育及胚后发育的全过程进行观察、拍照并测量,结果显示:东方高原鳅成熟卵呈淡黄色、圆形,卵径为0.97~1.11 mm,遇水具微黏性,为沉性卵。在水温(16±0.5)℃下,受精卵历时132h9min孵化出膜,所需积温为2 113.6℃·h,整个胚胎发育过程分为7个时期:胚盘形成期、卵裂期、囊胚期、原肠胚期、神经胚期、器官形成期、出膜前期;初孵仔鱼全长(4.86±0.09)mm,在水温(16±0.5)℃下,胚后发育历时34d,分为卵黄囊和后期仔鱼阶段,其中卵黄囊阶段历时9d,后期仔鱼历时25d。
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| 关 键 词： | 东方高原鳅 胚胎发育 胚后发育 卵黄囊 后期仔鱼 |
| 收稿时间： | 2017/3/22 0:00:00 |
Embryonic and post-embryonic development of Triplophysa orientalis (Herzenstein) |
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| WANG Fan,YANG Ruibin,FAN Qixue.Embryonic and post-embryonic development of Triplophysa orientalis (Herzenstein)[J].Journal of Huazhong Agricultural University,2017,36(6):89-98. |
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| Authors: | WANG Fan YANG Ruibin FAN Qixue |
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| Abstract: | The embryonic and post-embryonic development of Triplophysa orientalis (Herzenstein) were observed and described in detail under a microscope with a digital camera.The results showed that the mature unfertilized eggs of T.orientalis were viscous,ovoid,with a diameter of 0.97-1.11 mm,and characterized by tiny adhesive when encountering water.At a water temperature of (16±0.5) ℃,the embryonic development lasted 132 h and 9 min,with a cumulative temperature of 2 113.6 ℃ · h.Additionally,the embryonic development can be divided into seven physiological periods including blastoderm formation stage,cleavage stage,blastula stage,gastrula stage,neural stage and organ formation stage.The newly hatched larvae was (4.86 ± 0.09) mm in length and the post-embryonic development lasted 34 days at a water temperature of (16±0.5) ℃,which can be divided into the yolk sac and post larvae stage,lasting 9 and 25 days,respectively. |
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| Keywords: | Triplophysa orientalis (Herzenstein) embryonic development post-embryonic development yolk sac post larvae |
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