摘要
采取干导法进行人工授精,2年累计孵化极边扁咽齿鱼受精卵14万粒,平均受精率87.5%,发眼率77.5%,上浮率72%。在孵化水温10~14℃条件下,从受精到发眼平均积温为2012.5℃.h;从发眼到破膜平均积温为575℃.h;从破膜到卵黄囊吸收完平均积温为3734℃.h;鱼苗全部发育平均积温为6321.5℃.h。
About 140,000 fertilized eggs of Platypharodon extremus were obtained using a wet artificial method in two years,with average fertilization success of 87.5%,eyed eggs of 77.5%,and emergency（Swimming up）rate of 72%.The average accumulated temperature was 2012.5 ℃·hour degree）from zygote to eyed,575 ℃·h from eyed to hatching,and 3734 ℃·h from hatching to yolk sac exhaustion at water temperature from 10 to 14 ℃,totally 6321.5 ℃h from the fertilized eggs to postlarvae.
出处
《水产科学》
CAS
北大核心
2010年第10期610-612,共3页
Fisheries Science
基金
甘肃省技术研究与开发专项计划项目资助(0805TYCA021)
关键词
极边扁咽齿鱼
人工授精
干导法
Platypharodon extremus
artificial insemination
wet fertilization method
