不同群体尼罗罗非鱼×奥利亚罗非鱼组合的杂交效果比较  

Hybridization effects of different combinations of Oreochromis niloticus and Oreochromis aureus

作　　者：伍勇[1] 简伟业 秦谷雨[1] 罗明坤[1] 魏继海 唐首杰[1] 赵金良[1] 

机构地区：[1]上海海洋大学农业部淡水水产种质资源重点实验室,上海201306 [2]茂名伟业罗非鱼良种场,广东茂名525000

出　　处：《淡水渔业》2014年第2期67-70,共4页Freshwater Fisheries

基　　金：茂名市重大科技专项(2012A01006);现代农业产业技术体系专项(CARS-49-4B);上海高校知识服务平台上海海洋大学水产动物遗传育种中心(ZF1206)

摘　　要：为评估不同群体尼罗罗非鱼(Oreochromis niloticus,♀)×奥利亚罗非鱼(O.aureus,♂)组合的杂交效果,分别选择了尼罗罗非鱼新吉富、苏丹群体和奥利亚罗非鱼茂名、以色列群体为亲本,在小土池中开展二元组合杂交试验,并以新吉富群体自繁作为对照组,统计各杂交组合出苗量和后代雄性率差异。结果表明,尼罗罗非鱼种内配组的出苗量显著高于尼奥杂交组合,杂交组合内以新吉富♀×以色列♂组合的尾日均出苗量最高;尼奥杂交组合后代的雄性率显著高于尼罗罗非鱼种内配组,杂交组合内以新吉富♀×茂名♂组合杂交后代的雄性率最高。In order to evaluate hybridization effect of different combinations of O. niloticus and O. aureus, interspecific combination of New GIFT, Sultan stocks of Nile tilapia and Maoming and Israel stocks of blue tilapia were carried out in small earth pool, while the New GIFT was chosen as control group. In the test, the fry amount and male percentage of dif- ferent combinations were compared. The results showed that the fry amounts reproduced by Nile tilapia was significantly higher than those of interspecific hybridization groups, and the New GIFT 9 ~ Israel c3 combination had the highest num- ber among the interspecific hybridization groups. The male percentage of interspecifie hybridization combination progeny was significantly higher than that of Nile tilapia. Within the experimental groups, the New GIFT ♀ × Maoming ♂ combi- nation had the highest male percentage.

关 键 词：关键词 尼罗罗非鱼(Oreochromis niloticus) 奥利亚罗非鱼(Oreochromis aureus) 群体 种间杂交 出苗量 雄性率 

分 类 号：S965.125[农业科学—水产养殖]