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Position: Home > Articles > Study on the Early Embryonic Development of Ancherythroculter nigrocauda Journal of Henan Agricultural Sciences 2009,2009 (6) 127-130

黑尾近红鲌胚胎发育研究

作  者:
殷海成;吕海英
单  位:
河南工业大学生物工程学院;信阳市平桥区试验高中
关键词:
黑尾近红鲌;受精卵;胚胎发育
摘  要:
用胚胎固定脱膜方法对黑尾近红鲌(Anoherythroculter nigrocauda)胚胎发育进行连续观察,研究其胚胎正常发育特征。结果表明:黑尾近红鲌卵黏性,成熟时为淡黄色,卵膜透明,直径(0.90±0.03)mm。受精时卵呈淡黄色,圆形,直径为(0.94±0.05)mm,遇水膨胀后为(1.20±0.05)mm。在水温为24.5℃的孵育条件下,历时50h完成胚胎发育过程。其中,受精卵经25 min开始胚胎发育,45 min时进入2细胞期,5h 15 min时进入囊胚期,7h 25 min时进入原肠期,10h 15min进入神经胚期。受精后15h 55 min进入尾芽期,50h时50%以上的胚体孵出。刚出膜的仔鱼长约(4.10±0.02)mm。
译  名:
Study on the Early Embryonic Development of Ancherythroculter nigrocauda
作  者:
YIN Hai-cheng1,LU Hai-ying2(1.College of Bioengineering,Henan University of Technology,Zhengzhou 450001,China;2.Experimental High School of Pingqiao Area of Xinyang City,Xinyang 464000,China)
关键词:
Ancherythroculter nigrocauda;Fertilized egg;Embryonic development
摘  要:
In this paper,the embryonic development of Ancherythroculter nigrocauda was observed by the technique of embryo fixation.The results showed that mature eggs of A.nigrocauda are glutinous,lucency,primrose yellow and oval in shape with a diameter(0.90±0.03)mm.The fertilized eggs were primrose yellow and rotundity.The average diameter of the newly-fertilized eggs was about(0.94±0.05)mm and(1.20±0.05)mm after absorbing water.The fertilized eggs came into the two-cell stage,blastula stage,gastrula stage,embryos stage and tail bud stage at about 45min,5h 15min,7h 25min,10h 15min and 15h 55min after fertilization,respectively.Fifty percent of the newly-hatched larvae of A.nigrocauda began to break the egg membranes and came out at 50h after fertilization when the water temperature is around 24.5℃.The average length of each newly hatched fry was(4.10±0.02)mm.

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