摘要
通过人工授精的方法获得大刺鳅(Mastacembelue armatus)受精卵,并在(25±1)℃的孵化条件下,详细观察了大刺鳅胚胎发育的特征。结果显示:成熟大刺鳅卵呈卵圆形,金黄色,为具有黏性的沉性卵,受精卵卵径为(2.03±0.11)mm,且具有油球。水温(25±1)℃条件下,大刺鳅受精卵历时65.0 h孵化出膜,所需总积温为(1 624.5±58.12)℃·h。大刺鳅受精卵的卵裂方式为盘状卵裂,根据各个发育阶段的形态特征,将其划分为受精卵、胚盘隆起、卵裂、囊胚、原肠胚、神经胚、器官发生和出膜等8个连续发育阶段,22个时期。
The fertilized eggs of Mastacembelue armatus were obtained by artificial insemination. And the morphological characteristic of embryonic development was observed in detail under the water temperature of （25 ± 1 ） ℃. The results showed that the fully mature eggs were orbicular - ovate, golden yellow, and demersal eggs with viscosity, and the average egg diameter was （2. 03 ±0. 11 ） mm and with oil globule. It took 65.0 h from fertilization to hatching - out with the average accumulative temperature of （ 1624. 5 ＋ 58. 12） ~C ~ h. The cleavage of fertilized eggs of M. armatus was discoidal cleav- age. According to the morphological characteristics in all stages of the embryonic development process, it could be divided into 8 stages, including fertilized egg stage, the uplift of blastoderm stage, cleavage stage, blastula stage, gastrula stage, neurula stage, organ formation stage and hatching stage, and 22 developing phases.
出处
《淡水渔业》
CSCD
北大核心
2014年第2期101-104,108,共5页
Freshwater Fisheries
基金
国家大宗淡水鱼类产业技术体系福州综合试验站(CARS-46)
福建省省属公益类科研院所基本科研专项(闽海渔科2012R002-2号)
