凡纳滨对虾不同家系间繁殖性状的比较

袁瑞鹏; 刘建勇; 张嘉晨; 郑静静

doi:10.3969/j.issn.0253-4193.2016.06.010

凡纳滨对虾不同家系间繁殖性状的比较

doi: 10.3969/j.issn.0253-4193.2016.06.010

广东海洋大学水产学院, 广东湛江 524025

基金项目: 广东省海洋渔业科技推广专项科技攻关与研发项目(A201208B05)。

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- 收稿日期: 2015-10-27

A comparative study of reproductive traits among different Litopenaeus vannamei families

Fisheries College, Guangdong Ocean University, Zhanjiang 524025, China

摘要

摘要: 在相同的养殖条件下,从15个凡纳滨对虾(Litopenaeus vannamei)留种家系中各筛选30尾雌虾,记录60 d内每尾雌虾的产卵时体质量(SW)、产卵量(EN)、卵径(ED)、受精率(FR)、受精卵孵化率(HR)、连续两次产卵间隔时间(SI),分析各家系繁殖性状的差异性和各繁殖性状间的相关性。结果显示,各家系间繁殖相关性状差异显著(P<0.05),其中F415家系SW为55.36 g,显著大于其他家系(P<0.05),F413家系EN最高为26.52万粒,F402家系雌虾产卵FR和HR率均最高分别为83.19%和84.68%,F407、F401家系SI最短分别为5.03 d和5.06 d,以EN>20万粒、SI<9 d、FR>60%、HR>60%为选择标准,筛选出F401、F405、F407、F409、F413、F415六个家系雌虾作为凡纳滨对虾高繁殖力品系培育的亲虾;各繁殖性状中SW与EN间的相关系数为0.260呈极显著相关(P<0.01),EN与FR和HR间的相关系数分别为0.155和0.239呈极显著相关(P<0.01),SI与EN和HR间的相关系数分别为-0.121和-0.078分别呈极显著负相关(P<0.01)和显著负相关(P<0.05)。研究表明,凡纳滨对虾雌虾繁殖性能具有较大的家系选择潜力;在高繁殖力凡纳滨对虾品系培育的过程中应以雌虾平均单次产卵量和连续两次产卵间隔时间作为的选育的目标性状。
- 凡纳滨对虾 /
- 家系 /
- 繁殖性状 /
- 品系培育
Abstract: We conducted a comparative study of reproductive traits ‘spawning body weight (SW),egg number (EN),egg diameter (ED),the fertilization rate (FR),the fertilized egg hatching rate (HR),interval of spawning consecutive (SI)’ of 15 Litopenaeus vannamei families for 60 d,and analysis the correlation between each reproductive trait. The results show that the spawning body weight (SW) of F414 was 55.36 g,which was significantly bigger than other families (P<0.05). The fecundity (EN) of F413 was most (265.2 thousand). The fertilization rate (FR) and the fertilized egg hatching rate (HR) respectively were 83.19% and 84.68%,which both are higher than others. The shortest intervals of spawning consecutive families were F407 and F401,respectively with 5.03 d and 5.07 d. At EN>200 thousand eggs,SI<9 d,FR>60% and HR>60% as selection criteria,selecting F401,F405,F407,F409,F413 and F415 six family female shrimp as candidates for strong reproductive breeding. The correlation coefficient between SW and EN,between EN and FR and between EN and HR,respectively were 0.260,0.155 and 0.239,which were all high significant correlated (P<0.01). However,the correlation coefficient between SI and HR and between SI and EN respectively were -0.121 with nagative significant correlated (P<0.05) and -0.078 with nagative high significant correlated (P<0.01). Studies have shown that L.vannamei females reproductive performance with a larger family selection potential and the fecundity (EN) and intervals of spawning consecutive (SI) should be the goal traits for high reproductive L.vannamer stain breeding.
- Litopenaeus vannamei /
- family /
- reproductive traits /
- strain breeding

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