摘要
为了解罗氏沼虾(Macrobrachium rosenbergii)雌虾体质量对其生殖性能和胚胎质量的影响,本研究比较了4种规格(A组:16~20 g/尾、B组:24~28 g/尾、C组:32~36 g/尾、D组:40~44 g/尾)的雌虾亲本的生殖性能、胚胎质量和胚胎色泽,以及分析了体质量和生殖性能之间的相关性.结果显示:随着雌虾体质量的增加,雌虾抱卵量呈显著上升趋势,D组的抱卵量显著高于A、B、C组的抱卵量,C组显著高于A组(P<0.05),生殖力和生殖指数也随着体质量的增加而呈上升,D组显著高于A组(P<0.05),但是A、B、C组之间无显著性差异,B、C、D组之间无显著性差异;各组之间的单卵湿质量、单卵干质量和卵径均无显著性差异;各组之间的胚胎色泽参数均无显著性差异;体质量与抱卵量(r=0.847,P=0.000)、生殖力(r=0.508,P=0.004)和生殖指数(r=0.551,P=0.001)均呈显著正相关.结果表明,大规格罗氏沼虾的生殖性能优于小规格,但是规格对胚胎质量无明显的影响,该研究为罗氏沼虾亲本选择、生殖性能评价和人工育苗提供了重要基础资料.
In order to understand the effects of female body weight of giant freshwater prawn(Macrobrachium rosenbergii)on their reproductive performance and embryo quality,the reproductive performance,embryo quality,and egg colouration of four sizes of female M.rosenbergii broodstock(A:16-20 g/tail,B:24-28 g/tail,C:32-36 g/tail,D:40-44 g/tail)were compared in this study,and the correlation between body weight and reproductive performance was also analyzed.The results showed that while the body weight of giant freshwater prawn broodstock increased,the amount of egg production increased significantly.The egg production of group D was significantly higher than that of group A,B and C,while that of group C was significantly higher than that of group A.The reproduction and reproductive index also increased with the increase of body weight,with group D significantly higher than group A.However,there was no significant difference among groups A,B and C,and among groups B,C and D.There was no significant difference in wet weight,dry weight and diameter of single egg among the groups,as well as the embryo color parameters.The body weight of giant freshwater prawn broodstock exhibited significant positive correlation with egg production(r=0.847,P=0.000),fecundity(r=0.508,P=0.004),and reproductive effort(r=0.551,P=0.001).In conclusion,the reproductive performance of larger size of giant freshwater prawn broodstock was better than that of smaller size,but the size had no obvious influence on embryo quality.These results could provide valuable information for the broodstock selection,evaluation of reproductive performance and artificial breeding of giant freshwater prawn in the future.
作者
李清清
蔡子民
陈建
黄思琪
廖炯东
魏世涔
洪宇聪
孙凯辉
林蠡
LI Qingqing;CAI Zimin;CHEN Jian;HUANG Siqi;LIAO Jiongdong;WEN Shicen;HONG Yucong;SUN Kaihui;LIN Li(College of Animal Science and Technology,Zhongkai University of Agriculture and Engineering,Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center,Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding,Guangzhou 510225,China;Guangdong Yuequn Biotechnology Co.,Ltd,Guangdong Provincial Key Laboratory of Aquatic Larvae Feed,Jieyang 522000,China)
出处
《仲恺农业工程学院学报》
CAS
2022年第2期15-19,共5页
Journal of Zhongkai University of Agriculture and Engineering
基金
广东省驻镇帮镇扶村农村科技特派员项目(KTP20210236)
广州市重点研发计划农业和社会发展科技专项:水产产业链关键技术研究集成与示范(202103000067)
花都区渔业产业园科技公共品牌和标准制定(21302156)资助项目.
关键词
罗氏沼虾
规格
生殖性能
胚胎质量
Macrobrachium rosenbergii
size
reproductive performance
embryo quality
