凡纳滨对虾选育群体子代仔虾幼体耐低温能力比较研究  

A comparative study on the low temperature resistance of larvae from different breeding populations of Litopenaeus vannamei

作　　者：杨章武[1] 张哲[1] 陈思源 葛辉[1] 陆承宽 林嘉铭 杜秀萍 郑雅友[1] 李正良[1] 林克冰[1] 游伟伟[2] YANG Zhangwu;ZHANG Zhe;CHEN Siyuan;GE Hui;LU Chengkuan;LIN Jiaming;DU Xiuping;ZHENG Yayou;LI Zhengliang;LIN Kebing;YOU Weiwei(Fisheries Research Institute of Fujian,Xiamen 361013,China;College of Ocean and Earth Science,Xiamen University,Xiamen 361102,China;Fisheries College,Jimei University,Xiamen 361021 China)

机构地区：[1]福建省水产研究所,福建厦门361013 [2]厦门大学海洋与地球学院,福建厦门361102 [3]集美大学水产学院,福建厦门361021

出　　处：《渔业研究》2020年第3期253-260,共8页Journal of Fisheries Research

基　　金：福建省种业创新与产业化工程(2017—2020)海洋与渔业项目(2017FJSCZY02);福建省海洋与渔业结构调整专项(2019HYJG01);福建省省属公益类科研院所基本科研专项(2019R1013-9).

摘　　要：为探索凡纳滨对虾选育技术方法,以A、B、C、D四个凡纳滨对虾选育群体的自交和杂交不同交配组合子代的仔虾幼体,进行耐低温能力的比较实验。实验仔虾发育期为P 11~P 12,体长6.09~7.54 mm,实验水温为13.5~19.0℃,实验时间48 h。统计24、36和48 h的存活率,结合体长因素综合评价不同种源子代各组仔虾幼体的耐低温能力。结果表明,从低温实验24 h开始各组存活率出现显著差异。在实验48 h时,16个交配组合中,4组存活率最高且与A群种虾有关(与D群无关)的交配组合平均存活率为10.35%。而4组存活率最低且与A群种虾无关的组合,其中3组与D群有关的交配组合平均存活率为0%。不同种源子代仔虾幼体耐低温能力存在差异。In order to explore the breeding techniques and methods of Litopenaeus vannamei,the comparative experiment on the low temperature resistance was conducted based on the larvae from four breeding populations of L.vannamei(A,B,C and D),including inbred progenies and hybrid progenies according to different mating combinations.In this experiment,the growth period of larvae was P 11~P 12;the body length was 6.09~7.54 mm;the water temperature was 13.5~19.0℃;and the experimental period was 48 h.According to the survival rates at the time of 24 h,36 h and 48 h,the low temperature resistance of larvae from different provenances was evaluated comprehensively in all groups by combining the factor of body length.The results showed that there was a significant difference in the survival rate among all groups from the low temperature test of 24 h.At the time of 48 h during the experiment,the mating combination in which 4 groups had the highest survival rate and were related to seed shrimps of Population A(unrelated to those of Population D)had an average survival rate of 10.35%in these 16 mating combinations.An average survival rate of 0 was found in the mating combination in which 4 groups had the lowest survival rate and were not related to seed shrimps of Population A and also in the mating combination in which 3 groups were related to Population D.There was an extremely significant difference in the low temperature resistance of larvae from different provenances.

关 键 词：凡纳滨对虾 选育 仔虾幼体 耐低温能力 

分 类 号：S967.9[农业科学—水产养殖]