【摘要】 于2002～2003年,在浙江湖州,对翘嘴红?亲鱼的选择、运输、培育及苗种的人工繁殖技术进行了研究。结果表明,亲鱼培育要以鱼或虾为饲料,繁殖年龄应3足龄以上,规格以0.75～2.5kg/尾为好。浙北地区的繁殖时间为6月上中旬,繁殖水温20℃以上,雌雄亲鱼的比例控制在1∶1～2∶1之间,适宜催产剂为HCG+LRH-A。采用一次注射,在环道内自然产卵、孵化的方式为宜。繁殖用水要严防浮游动物的进入,出苗时应带水操作。更多还原

【Abstract】 The artificial propagation techniques of Erythtoculer ilishaefornis including brood fish selection, methods of brood fish transport and intensive cultivation,successful hormone induction, hatchery management etc were studied in Huzhou of Zhejiang during the years from 2002 to 2003. The results are described as follows.Suitable feeds for brood fish are raw fresh fish or shrimps. Parent fish candidates are at least 3 years old with body weight ranging from 0.75 to 2.5 kg. The proper propagation time is in the early and mid of June when water temperature goes up to 20 ℃or more. The sexual ratios of female to male should be between 1∶1 and 2∶1.Hormone mixture of HCG and LRH-A should be administrated to stimulating ovulation by one injection.Eggs were laid,fertilized and hatched naturally in circular cement hatcheries.Zooplankton should be kept out of hatchery.Fry should be handled with water.更多还原