Reproductive quality of male Penaeus monodon

The reproductive performance of unilaterally eyestalk-ablated wild male Penaeus monodon was compared with that of unablated prawns (controls). After being stocked for 6 weeks in flow-through tanks, ablated males showed significantly higher sperm count (153.6 × 10 6 vs.77.5 × 10 6), less abnormal spe...

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Veröffentlicht in:	Aquaculture 1993-05, Vol.112 (2), p.157-164
Hauptverfasser:	Gomes, Luiz A.O., Honculada-Primavera, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal aquaculture Animal productions Animal reproduction Biological and medical sciences Fish Fundamental and applied biological sciences. Psychology Marine PENAEUS MONODON PERFORMANCE DE REPRODUCTION Pisciculture REPRODUCTIVE PERFORMANCE REPRODUCTIVIDAD Vertebrate aquaculture
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Beschreibung
Zusammenfassung:	The reproductive performance of unilaterally eyestalk-ablated wild male Penaeus monodon was compared with that of unablated prawns (controls). After being stocked for 6 weeks in flow-through tanks, ablated males showed significantly higher sperm count (153.6 × 10 6 vs.77.5 × 10 6), less abnormal sperm (45.5% vs 73.3%), larger sperm head diameter (6.682 μm vs. 5.568 μm) and longer spike (5.096 μm vs. 4.360 μm) compared to unablated ones. Gonad index, spermatophore weight and percentage of live sperm were not significantly different between ablated and unablated males. No apparent decline in reproductive capacity was detected when comparing unablated prawns at the start of the study and after 6 weeks.
ISSN:	0044-8486 1873-5622
DOI:	10.1016/0044-8486(93)90441-Z