Browsing Artículos científicos by Author "Alfaro, Jorge"
Now showing items 1-3 of 3
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Development and Deterioration of Spermatophores in Pond-Reared Penaeus vannamei
Alfaro, Jorge; Lozano, Xenia (World aquaculture society, 1993)Spermatophore deterioration in pond-reared Penaeus vannamei was studied, and spermatophore quality was evaluated and improved. Sperm production of males collected from grow-out ponds was increased by two techniques: ... -
In vitro manipulation of egg activation in the open thelycum shrimp Litopenaeus
Rojas, Ericka; Alfaro, Jorge (Elsevier, 2007)This research was designed to develop a basis for the in vitro manipulation of egg activation in Litopenaeus. The timing and sequence of events associated with egg activation of three species of Litopenaeus: L. occidentalis, ... -
Induction of ovarian maturation and spawning by combined treatment of serotonin and a dopamine antagonist, spiperone in Litopenaeus stylirostris and Litopenaeus vannamei
Alfaro, Jorge; Zúñiga, Gerardo; Komen, J. (Universidad Nacional, Costa Rica, 2004)The study was designed to develop a reliable technique for inducing ovarian maturation and spawning in Litopenaeus stylirostris and Litopenaeus vannamei, as an alternative to the traditional and destructive eyestalk ...