Evaluation of Reproductive Capacity in Pond-Reared Penaeus monodon after Unilateral Eyestalk Ablation

文献类型: 外文期刊

第一作者: Wen, Weigeng

作者: Wen, Weigeng;Chen, Xu;Zhao, Wang;Yang, Qibin;Ma, Zhenhua;Wen, Weigeng;Chen, Xu;Zhao, Wang;Yang, Qibin;Ma, Zhenhua;Wen, Weigeng;Chen, Xu;Zhao, Wang;Yang, Qibin;Ma, Zhenhua;Qin, Jian G.

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关键词: Reproductive capacity; Body weight; Pond-reared; Penaeus monodon; Eyestalk ablation

期刊名称:PAKISTAN JOURNAL OF ZOOLOGY ( 影响因子:0.831; 五年影响因子:0.768 )

ISSN: 0030-9923

年卷期: 2020 年 52 卷 4 期

页码:

收录情况: SCI

摘要: This study investigated the reproductive capacity of pond-reared female Penaeus monodon after unilateral eyestalk ablation. A total of 240 females (57.0-143.3g) were used as broodstocks in a continuous three-year breeding experiment. After unilateral eyestalk ablation, the relationships of egg and nauplii at the first spawning event and female bodyweight were evaluated. At each spawning, a female could produce 120000-1250000 eggs which hatched into 80,000-950,000 nauplii. The egg hatching rate at each spawning varied from 27.4% to 86.3% without particular patterns of correlation with female body weight. The fecundity of pond-reared female P. monodon varied from 2 100 to 9 400 eggs per gram of bodyweight, and females with medium size of 85-120 g showed greater fecundity (around 9000 eggs/g) in comparison with smaller and larger counterparts. This study indicates that reproductive capacity of pond-reared female P. monodon is significantly related to bodyweight with a desirable size of 85-120 g as female broodstocks.

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