Effect of unilateral eyestalk ablation on spawning and hatching in Penaeus vannamei

The effect of unilateral eyestalk ablation on spawning and hatching was investigated under tank culture conditions in Penaeus vannamei. Unilateral eyestalk ablation increased maturing shrimp and spawning frequency. Mean number of eggs per spawn from ablated and unablated spawners were not significan...

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Bibliographic Details
Published inBulletin of National Research Institute of Aquaculture (Japan) no. 22
Main Authors Yano, I. (National Research Inst. of Aquaculture, Tamaki, Mie (Japan)), Wyban, J.A
Format Journal Article
LanguageEnglish
Published 01.03.1993
Subjects
ANTAGONISTAS DE LAS HORMONAS
ANTAGONISTE D'HORMONE
CRIA DE CRUSTACEOS
ECLOSION
ELEVAGE DE CRUSTACES
GLANDE ENDOCRINE
GLANDULAS ENDOCRINAS
OEIL
OJOS
OVIPOSICION
PENAEUS VANNAMEI
PERFORMANCE DE REPRODUCTION
PONTE
REPRODUCTIVIDAD
RESECCION
RESECTION
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Summary:The effect of unilateral eyestalk ablation on spawning and hatching was investigated under tank culture conditions in Penaeus vannamei. Unilateral eyestalk ablation increased maturing shrimp and spawning frequency. Mean number of eggs per spawn from ablated and unablated spawners were not significantly different. On the other hand, mean hatching rate (66.0%) from unablated females was significantly (P 0.01) greater than that (16.9%) from ablated females. This indicates that hatching rate is strongly affected by the unilateral eyestalk ablation in shrimps
Bibliography:L70
9502963
M12
ISSN:0389-5858