Preliminary evaluation of eyestalk ablation and thoracic gancglion implantation on spermatophore quality and molting of male Penaeus vannamei

Authors

  • Jorge Alfaro Montoya Escuela de Ciencias Biológicas, Universidad Nacional, Costa Rica

Keywords:

evaluation, quality, male

Abstract

Males of Penaeus vannamei (mean weight = 25,05 +/- 1,89 g), selected from a commercial semi-intensive pond, were used to study the effect of thoracic ganglion implantation on spermatophore quality, and the effect of eyestalk ablation on molt cycle duration.

Thoracic ganglion implantation did not benefit spermatophore sperm count and spermatophore weight, whereas eyestalk ablation significantly (P< 0,05) improved spermatophore quality. Eyestalk ablation did not shorten molt cycle duration. It is believed that eyestalk ablation has a different effect on molting depending on the natural environment of each species.

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Published

1992-01-01

Issue

Section

Original scientific papers (evaluated by academic peers)

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