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Preliminary evaluation of eyestalk ablation and thoracic ganglion importation on spermatophore quality and molting of male Penaeus vannamei
(Universidad Nacional, Costa Rica, 1992-01-01)
Males of Penaeus vannamei (mean weight = 25.05 ± 1.89 g), selected from a commercial semi-intensive pond, selected form a commercial semi-intensive pond, were used to study the effect of thoracic ganglion implantation on ...
Control de la reproducción de camarones marinos
(Universidad Nacional [Costa Rica ], 1998-01-01)
El entendimiento de la biología reproductiva básica es necesario para el mejoramiento de la producción de gametos de camarones. Esta presentación revisará nuestro conocimiento actual en materia de determinación sexual, ...
Pautas para la interacción entre la investigación y la extensión en la pesquería del camarón blanco (Penaeus spp.) en el Golfo de Nicoya, Costa Rica
(Universidad Nacional (Costa Rica), 1998)
Se ha propuesto una guía de trabajo sobre la relación entre la investigación y la extensión en sus diferentes niveles, para establecer un vínculo de transferencia de información entre el investigador, el pescador y los que ...
Thoracic nerve cord - ganglia recognition in intraspecific and interspecific transplants in the white shrimp, Penaeus (Litopenaeus) vannamei
(Science Direct, 2009-03)
The recognition response of Penaeus (Litopenaeus) vannamei against thoracic nerve cord–ganglia transplants from three species of Penaeidae: P. vannamei, P. (Litopenaeus) stylirostris, and Trachypenaeus byrdi, and one species ...
Implant recognition and gender expression following ampoule-androgenic gland implantation in Litopenaeus vannamei females (Penaeidae)
(Aquaculture Vol.468 Part 1. 471-480, 2017-02-01)
Indirect evidence indicates that penaeids may have a W/Z sex heritability mechanism with the androgenic gland (AG) mediating masculine differentiation. The present study evaluated the immune response against grafts and the ...
Effects of androgenic gland ablation on growth, sexual characters and spermatogenesis of the white shrimp, Litopenaeus vannamei (Decapoda: Penaeidae) males
(Aquaculture Research Vol.47 No.9 2768-2777, 2015-03-10)
This research was implemented to study the effects of androgenic gland ablation in the white shrimp Litopenaeus vannamei to explore sex reversal potential as an alternative technology for monosex female mariculture based ...
Research frontiers in penaeid shrimp reproduction: future trends to improve commercial production
(Elsevier, 2019)
Shrimp farming worldwide is based on a similar technological package, characterized by three phases: Controlled Reproduction, Larvae Culture, and Grow-out Culture. This basic aquaculture package uses broodstock animals, ...
Descripción histológica de la oogénesis y espermatogénesis del camarón de cultivo, Litopenaeus vannamei
(Revista de Biología Marina y oceanografía, 2013)
This research describes detailed stages of oogenesis and spermatogenesis at histological level in the white shrimp of the western Pacific, Litopenaeus vannamei. Both processes were studied in cultured organisms under ...
Cooling, cryoprotectant and hypersaline sensitivity of penaeid shrimp embryos and nauplius larvae
(Elsevier, 2001-10-23)
The sensitivity of embryos of the penaeid shrimp, Trachypenaeus byrdi, to cooling, cryoprotec tant exposure dimethyl sulfoxide : DMSO, sucrose, methanol and glycerol , and hypersaline Ž .
treatment was assessed in order ...
Induction of sperm activation in open and closed thelycum penaeoid shrimps
(Aquaculture vol.216 no.1-4 371-381 2003, 2003)
A modified egg water (EW) technique for in vitro induction of sperm activation was applied to Trachypenaeus byrdi, Xiphopenaeus riveti (closed thelycum shrimps), and Litopenaeus occidentalis (open thelycum) from a tropical ...