Browsing Artículos científicos by Subject "REPRODUCCIÓN ANIMAL"
Now showing items 1-16 of 16
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Aspectos reproductivos de Anodonta Luteola Lea 1858 (Unionoida: Unionidae) en Cañas, Guanacaste, Costa Rica
(Universidad Nacional (Costa Rica), 2017-01-31)Se estudiaron los aspectos reproductivos de Anodonta luteola. Las muestras se obtuvieron de mayo de 2014 a abril de 2015 de un estanque de cultivo de tilapia (Oreochromis niloticus). El sexo se determinó mediante frotis ... -
Comparison of fatty acids profile of the gonads and eggs of Lutjanus guttatus(Perciformes: Lutjanidae) obtained from wild and captive broodstock
(Universidad Nacional (Costa Rica), 2020-01)The proportions of fatty acids present in eggs and gonads of wild and captive Lutjanus guttatus(Steindachner, 1869) were evaluated to assist in obtaining nutritional information necessary to ... -
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 ... -
Development and Deterioration of Spermatophores in Pond-Reared Penaeus vannamei
(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: ... -
Fecundidad, fertilidad e índice gonadosomático de Poecilia reticulata(Pisces: Poeciliidae) en Heredia, Costa Rica
(Universidad de Costa Rica, 2004)Fertility, fecundity and gonadosomatic index of Poecilia reticulata(Pisces: Poeciliidae) in Heredia, Costa Rica. Between September and November of 1998, 1 432 females of Poecilia reticulata were collected in a ... -
Hormone-induced spawning of wild and captive-grown spotted rose snapper Lutjanus guttatus using carp pituitary suspension and human chorionic gonadotropin
(Universidad Autónoma de Baja California, México, 2011)Hormone-induced spawning of the spotted rose snapper Lutjanus guttatus was studied using wild and cage-grown fish. Carp pituitary suspension (CPS) and human chorionic gonadotropin (hCG) were assessed. Wild females (0.7–2.1 ... -
In vitro manipulation of egg activation in the open thelycum shrimp Litopenaeus
(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, ... -
Mortalidad embrionaria y éxito de eclosión en huevos de Trachemys scripta (Testudines: Emydidae) incubados en un área natural protegida
(Universidad de Costa Rica, 1996)In the northeast of Costa Rica, ilIega! collecting, habitat destruction and heavy predation 011 adult females, young and eggs of Trachemys scripta produced a population decline in recent years. The slider tUltle has a ... -
Optimización del cultivo larvario para la producción de juveniles del pargo manchado Lutjanus guttatus en Costa Rica
(Universidad Nacional, Costa Rica, 2021-07-31)La base tecnológica para la acuicultura del Lutjanus guttatus fue desarrollada en Costa Rica desde el 2002 por el Parque Marino del Pacífico. Las primeras producciones en masa de juveniles se obtuvieron en el 2005, las ... -
Preliminary evaluation of the effect of juvenile hormone III and methyl farnesoate on spermatophore quality of the white shrimp, Litopenaeus vannamei Boone, 1931 ( Decapodai : Penaeidae )
(2008-04)Este estudio preliminar es un primer paso en la exploración del efecto de la hormona juvenil III (HJ III) y el metil farnesoato (MF) sobre la calidad de espermatóforos de Litopenaeus vannamei. La HJ III aplicada cinco ... -
Reproducción del camarón carabalí Trachypenaeus byrdi (Burkenroad, 1934) en la parte interna del Golfo de Nicoya, Costa Rica
(Universidad Nacional (Costa Rica), 2016-01)El grupo de camarón blanco (Litopenaeus sp.) es uno de los recursos de mayor importancia socioeconómica en el Golfo de Nicoya. Sin embargo, en los últimos años, el camarón carabalí (Trachypenaeus byrdi) ha experimentado ... -
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, ... -
Rose snapper marine culture in Costa Rica
(Panorama Acuícula Magazine, 2008-03-01)A great variety of species of snappers are cultivated in Asia, and others recently studied in Mexico, Australia and the United States. In Costa Rica, the Marine Park of the Pacific has increased the production of juveniles ... -
Spontaneous spawning in captivity of the first generation hatchery-produced weakfish, Cynoscion squamipinnis (Perciformes: Sciaenidae)
(Universidad Nacional (Costa Rica), 2017-01)The aim of this study was to evaluate the spontaneous spawning of the first generation of weakfish (Cynoscion squamipinnis) reared in captivity in order to conduct restocking programs and mariculture projects. Juveniles ... -
The effect of Ibuprofen on female and male reproduction of the open thelyca marine shrimp, Litopenaeus
(Aquaculture Research, 2013-03-11)A research was designed to explore the effect of ibuprofen (IBU) as an intervening agent for prostaglandin biosynthesis on male and female reproduction of three species of Litopenaeus. Ovarian maturation was studied in L. ... -
The histological structure of the androgenic gland and cellular cord of the male reproductive system of adult litopenaeus and rimapenaeus byrdi
(2012-05-01)The current knowledge of the precise extension and location of the androgenic gland (AG) in the genera Litopenaeus and Rimapenaeus is partial. Therefore, we analyzed the complete structure of the AG and cellular cord ...