60个家系吉富品系罗非鱼初期阶段的生长比较  

Comparison of Growth among 60 Families GIFT Strain Tilapia at Initial Stage

作　　者：董在杰[1,2] 何杰[1] 朱健[1] 张守领[1] 张成峰[1] 徐跑[1,2] 农肖颖[2] 梁政远[2] 缪凌鸿[2] 

机构地区：[1]中国水产科学研究院淡水渔业研究中心,农业部水生动物遗传育种和养殖生物学重点开放实验室,无锡214081 [2]南京农业大学无锡渔业学院,无锡214081

出　　处：《淡水渔业》2008年第3期32-34,共3页Freshwater Fisheries

基　　金：中央级公益性科研院所基本科研业务费专项资金项目(2007JBFA01)

摘　　要：本文对这60个家系的吉富罗非鱼(Oreochromis niloticus)在生长初期阶段的3个多月时间内的生长情况进行了比较分析,结果显示:经过3个多月的培育,60个家系共1831尾吉富罗非鱼的总体平均体重为102.4±38.9g。第59号家系的平均体重最大,为178.0±40.0g;第9号家系的平均体重最小,为64.1±18.6g。最大个体出现在第59号家系中,为271.7g,最小个体出现在第20号家系中,为22.0g。从家系水平上看,生长速度相差2倍,从个体水平上看,最大个体的体重是最小个体的12倍多。表明吉富罗非鱼各家系及个体间的生长速度存在较大差异,既有进行选育的基础,也有进行长期选育的必要。In this paper, the growth during first 3 -4 months was compared and analyzed among 60 families. The results showed the average body weight of total 1831 individuals of 60 families was 102.4 ± 38, 9 g, The body weight of No, 59 family was the largest with the value of 178. 0 ±40. 0 g and No, 9 family had the smallest value of 64. 1 ± 18.6 g of body weight. The largest individual was in No. 59 family with the body weight of 271, 7 g and the smallest was in No. 20 family with the body weight of 22. 0 g, From the family level, there was twice difference in growth, while from individual level, the body weight of the largest individual was 12-odd times than that of smallest individual. It indicated there was large difference in growth rate among different families and individuals, The long-term selection basic as well as necessity existed in GIFT.

关 键 词：吉富罗非鱼(Oreochromis niloticus) 生长 家系 

分 类 号：S965.125[农业科学—水产养殖] Q959.483[农业科学—水产科学]