黄金鲈与伊犁鲈杂交后代生长性能及杂交鲈性腺发育分析  

Analysis of growth and gonadal development in hybrids between Perca flavescensand Perca schrenki

作　　者：王佳[1] 刘青华 施志仪[1] 

机构地区：[1]上海海洋大学,上海201306 [2]上海爱格斯生态科技有限公司,上海201210

出　　处：《淡水渔业》2009年第5期7-12,共6页Freshwater Fisheries

摘　　要：研究了黄金鲈(Perca flavescens)雌鱼与伊犁鲈(Perca schrenki)雄鱼杂交后代的生长性能和性腺发育。结果显示:经过690 d的生长比较,杂交鲈体重为(446.94±32.14)g,黄金鲈体重为(314.16±31.20)g,伊犁鲈体重为(446.94±32.14)g;杂交鲈体重增长比黄金鲈快33.91%,二者体重有显著差异(P<0.05);杂交鲈体重增长比伊犁鲈低6.24%,杂交鲈与伊犁鲈体重无显著差异。二龄杂交鲈雌、雄性腺系数分别为(10.05±0.05)%和(1.64±0.01)%,显著低于黄金鲈雌、雄性腺系数(13.67±0.05)%和(3.60±0.01)%(P<0.05)。黄金鲈和伊犁鲈的杂交鲈繁殖期比黄金鲈推迟一年。This research based on the hybrid experiment conducted with Perca flavescens （yellow perch） spawner and Perca schrenki （ balkhash perch） milter （ a kind of perch native to the Central Asia region） for the first time, with a view of speeding up the growth rate of P.flavescens, postponing sexual maturity and improving the listing specifications. The result showed that, the weight of hybrid perch was （446.94±32. 14 ）g, P.flavescens was （314. 16 ±31.20）g and P. schrenki was （446. 94 ±32. 14）g. The body weight of hybrids were gained 33.91% faster than P.flavescens, there was significant difference between the hybreds and P.flavescerts （P 〈 0.05 ）, but significant difference between the hybreds and P. schrenki. Gonadosomatie index of male and female hybrids were respectively （ 10. 05± 0. 05 ） % and （ 1.64 ± 0. 01 ） % , which were significantly lower than the P.flavescens （ 13.67 ±0. 05）% and （3.60 ±0. 01 ）% （P 〈0. 05）. Through hybridization, the breeding of hybrids was delayed one year.

关 键 词：黄金鲈(Perca flavescens) 伊犁鲈(Perca schrenki) 杂交 性腺发育 

分 类 号：S961.5[农业科学—水产养殖]