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Composición bioquímica de la carne de Polymesoda radiata (Bivalvia: Corbiculidae) en Costa Rica
(Universidad de Costa Rica, 1998)
Monthly changes in biochemical composition and condition index of the green clam, Polymesoda radiata were studied from August 1992 tbrough July 1993 in Bebedero river, Guanacaste, Costa Rica. This species has a continuous ...
Dieta del "pargo colorado" Letjanus colorado (Pisces: Lutjanidae) en el Golfo de Nicoya, Costa Rica
(Universidad de Costa Rica, 1997)
A total of 308 "Red Snapper" Lutjanus colorado were collected monthly in the Gulf of Nicoya, Costa Rica, from January 1993 to January 1994 to determine feeding habits. The fishes (16-56 cm in total length) were polychaete ...
Comparison of amino acid profiles of feeds and fish as a quicic metiiod for selection of feed ingredients: a case study for Colossoma mactopomum (Cuvier)
(John Wiley & Sons, 1996)
The amino acid profile of Colossoma macropomum was determined. Indispensable amino acid levels were sim ilar to those reported in other fish species. Suitability
of local. Costa Rican, ingredients as protein sources
for ...
Effect of feeding level on feed losses and feed utilization of soya and fish meal diets in Colossoma macropomum (Cuvier)
(Wageningen Agricultural University, 1997)
Juvenile, 1-g Colossoma macropomum (Cuvier) were fed two different diets: one with fish meal and another with soya meal as the main dietary protein source. Both diets were provided at ad libitum feeding level, and at two ...
Effect of dietary lipid level on protein utilization and the size and proximate composition of body compartments of Colossoma macropomum (Cuvier)
(Wageningen Agricultural University, 1997)
Juvenile Colossoma macropomum were fed ad libitum
diets containing either 30% or 40% protein, while
the dietary lipid level varied between 5% and 20%.
Growth and protein utilization efficiency increased
with the dietary ...
Inducción al desove en hembras del pargo mancha, lutjanus guttatus (Steindachner, 1869)
(Universidad Nacional [Costa Rica ], 1998-01-01)
Se estudió el efecto del extracto de pituitaria de carpa (EPC) en 6 hembras maduras de pargo mancha, L. guttatus, capturadas con línea por pescadores artesanales en el Golfo de Nicoya. El peso de las hembras varió de 1,7-2,0 ...
Effects of the protein: energy ratio in isocaloric diets on the growth of Cichlasoma managuense (Gunther 1869)
(Wiley & Sons, 1994)
A feeding experiment was conducted to evaluate the growth of tiger guapote,
Cichlasoma managuense (Gunther), fed on isocaloric diets with varying proteinxnergy ratios.
The relative metabolic growth rate increased with ...
Environmental impacts of nitrification and nitrate adsorption in fertilized andisols in the Valle Central of Costa Rica
(Williams & Wilkins, 1994)
A major scientific challenge for modern agriculture is control of off-site effects on the water resource. In the Valle Central of Costa Rica, coffee plantations may leach fertilizer-derived (Equation presented) to groundwaters, ...
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 ...
Estimación de parámetros biologico-pequeros para el pargo mancha Lutjanus guttatus en el Golfo de Nicoya, Costa Rica
(Universidad Nacional [Costa Rica], 1998-01-01)
El pargo manchado Lutjanus guttatus es una de las especies demersales más importantes de la costa del Pacífico de Costa Rica. Este pez demersal es capturado principalmente por la flota artesanal con redes de enmalle y ...