凡纳滨对虾不同家系间繁殖参数的比较

Comparison of Reproductive Parameters in Pacific White Leg Shrimp Families

研究结果表明,不同家系的雌虾间产卵量、卵径及连续产卵间隔时间差异不显著,不同家系间雄虾的精荚质量、精荚再生时间差异也不显著;雌虾体质量和产卵量的相关系数为0.314,雌虾体质量和卵径的相关系数为0.067;雄虾体长与精荚质量的相关系数为0.214,雄虾体质量与精荚质量的相关系数为0.164,精荚再生时间与体质量的相关系数为0.246,精荚再生时间与体长的相关系数为0.200。

The reproductive parameters and correlationship of different families were compared in different families of Pacific white leg shrimp Litopenaeus vannamei to investigate the reproductive ability of different families.The results showed that there were no significant differences in fecundity,diameter of eggs,continuous spawning duration of females,weight of spermatophore,and spermatophore regeneration time in different families.The correlation coefficient between body weight and fecundity in females was 0.314,the correlation coefficient between weight of female and diameter of eggs 0.067,the correlation coefficient between length of male and spermatophore weight 0.214,the correlation coefficient between the weight of male and spermatophore weitht 0.164,the correlation coefficient between the spermatophore regenerated time and body weight of male 0.246,and the correlation coefficient between the spermatophore regenetated time and body length of male 0.200.The findings provide reference to the shrimp production and research.