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Condiciones climáticas y la producción láctea del ganado jersey en dos pisos altitudinales
Climatic conditions and jersey cattle dairy production on two altitudinal levels
(2019-12-05)
Introducción. La precipitación, temperatura, radiación y humedad relativa varían según la altura, esto provoca la presencia de microclimas que afectan la productividad de los animales. Objetivo. Asociar las condiciones ...
Colouration in amphibians as a reflection of nutritional status: The case of tree frogs in Costa Rica
(2017-08-24)
Colouration has been considered a cue for mating success in many species; ornaments in males often are related to carotenoid mobilization towards feathers and/or skin and can signal general health and nutrition status. ...
Comparison of two non-destructive techniques to determine DM yield in the tropics
(2018-06)
Dry matter yield determines both stocking rate and animal carrying capacity on farms, but to estimate
such indicators, accurate yield measures are required. Some common techniques to estimate biomass in
pastures are ...
Severidad de miopatías de pechuga y su relación con indicadores de bienestar productivos, fisiológicos y de comportamiento en pollos de engorde
Severity of breast myopathies and their relationship with productive, physiological and behavioral welfare indicators in broilers
(2022)
El objetivo de este experimento fue evaluar la relación entre diferentes grados de severidad de las
miopatías de pechuga, conocidas como pechuga de madera (PM) y estrías blancas (EB), con indicadores de bienestar
fisiológicos, ...
Improving phenotypic prediction in dairy cattle breeding using the metagenome
(2019-11-18)
Ruminants evolved from Artiodactyla in the Eocene 50–70 million years ago. In that period, grass began to populate the largest land surface on Earth. Since then, ruminants and their microbiota have evolved together in ...
Feeding and Nutrition of Anteaters
(2011-05-02)
The superorder Xenarthra (former Edentata) is grouped into two orders, Cingulata (armadillos) and Pilosa (anteaters and sloths). These are special mammals
that show unique traits: (1) the existence of secondary articulations ...
Additive genetic and heterosis effects for milk fever in a population of Jersey, Holstein × Jersey, and Holstein cattle under grazing conditions
(2018-08-30)
The aim of this study was to estimate additive genetic and heterosis effects for milk fever (MF) in Costa Rican dairy cattle. A farm-based management information software was used to collect 223,783 parity records between ...
Arsénico, cadmio, mercurio y plomo en alimento importados para mascotas en Costa Rica
Arsenic, cadmium, mercury, and lead in imported pet food in Costa Rica
(2023-01-01)
Introducción. El consumo de metales pesados puede provocar problemas de salud en los animales. Objetivo. Determinar la concentración de cadmio, mercurio, plomo y arsénico en 34 alimentos balanceados importados y comercializados ...
No longer a leap in the dark: the importance of protein as an energy source in amphibians
(2019-09-18)
Amphibian nutrition has been highlighted as one of the disciplines requiring more investigation to support ex situ conservation programs. Specifically, anuran metabolism related to dietary nutrients is not yet investigated ...
Características pre-destete de cruces genéticos de bovinos de carne en el trópico seco costarricense
Preweaning traits from crossbreeding beef cattle in Costa Rican dry tropic
(2015)
El objetivo de esta investigación fue analizar la información de los registros productivos de crías nacidas durante los años 2001 – 2007 de una finca ganadera ubicada en Cañas, Guanacaste. Ahí se evaluaron 3 razas (Brahman. ...