杂交鳢杭鳢1号胚胎发育过程的观察  

Observation on Embryonic Development of Hybrid Snakehead from Channa maculatus(♀) × Channa argus(♂)

作　　者：姚桂桂[1] 刘新轶[1] 谢楠[1] 王宇希[1] 冯晓宇[1] 郭水荣[1] 

机构地区：[1]浙江省杭州市农业科学研究院水产研究所,浙江杭州310024

出　　处：《江西农业学报》2010年第11期133-135,138,共4页Acta Agriculturae Jiangxi

基　　金：浙江省杭州市科技重大创新项目(20083212A04)

摘　　要：通过尼康显微镜观察了杂交鳢杭鳢1号子一代的胚胎发育,并拍摄了其发育特征,描述了各发育时期的发育时序和形态特征.杭鳢1号的胚胎发育可分为卵裂期、囊胚期、原肠胚期、神经胚期、尾芽出现期、肌肉效应期、心跳期、出膜期等几个主要阶段.在22～25℃的水温条件下,杭鳢1号鱼卵孵化约需50 h才能破膜而出.By the microscope NIKON E400,the embryonic development process of hybrid snakehead 'Hangli 1' produced by Channa maculatus(♀) × Channa argus(♂) was observed and recorded,and the morphological characteristics and developmental process of the embryo at different developmental stages were described.Based on the typical characteristics,the embryonic development process of 'Hangli 1' was divided into 8 stages: cleavage stage,blastula stage,gastrula stage,neurula stage,tail bud stage,muscular contraction stage,heart beating stage,hatching stage.From fertilized egg to hatching,it took around 50 hours at the temperature from 22 ℃ to 25 ℃.

关 键 词：杂交鳢 胚胎发育 发育过程 Hybrid Embryonic Development 显微镜观察 鱼卵孵化 形态特征 水温条件 神经胚期 肌肉效应 发育特征 发育时期 子一代 原肠胚 囊胚期 卵裂期 心跳 时序 破膜 

分 类 号：S[农业科学]