Zootecnia
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El ensilaje como solución a la escasez de forraje
(2015-06)En la actualidad, el productor ha tenido que cubrir la escasez de forraje con otras fuentes, provenientes de procesos agroindustriales como las cáscaras, rastrojos, tubérculos, subproductos de cervecería, del trigo, de ... -
Hacia sistemas más intensivos en la producción de carne bovina: pastoreo con suplementación, semiestabulación y estabulación
(2015)La incorporación de Costa Rica a los procesos de globalización y de apertura al mercado mundial ha generado la necesidad de cambios en los sistemas de producción ganaderos (leche y carne); por consiguiente, los investigadores ... -
Aportes al debate sobre el consumo de grasa saturada de las carnes rojas
(2022)La carne roja es un alimento que aporta gran cantidad de nutrientes, entre ellos la grasa saturada, la cual es importante para el adecuado desarrollo y funcionamiento del organismo. A pesar de ello, durante los años 60s ... -
Molecular characterization of the S1 gene in GI-17 and GI-13 type isolates of avian infectious bronchitis virus (IBV) in Costa Rica, from 2016 to 2019
(2022)Avian infectious bronchitis is one of the most important respiratory diseases affecting poultry production worldwide. The etiological agent of this disease is the avian infectious bronchitis virus (IBV). We analyzed ... -
Consumo y venta del huevo de codorniz en Costa Rica
(2021)El sector coturnicultor costarricense está en proceso de desarrollo; aún no se han documentado en la literatura aspectos productivos, económicos, de mercado o comercialización asociados al ... -
A Focus on Aflatoxins in Feedstuffs: Levels of Contamination, Prevalence, Control Strategies, and Impacts on Animal Health
(2017)Aflatoxins are mold-synthetized secondary metabolites that are ubiquitously present in agricultural commodities, such as cereals which in turn are substantial part of feed formulation. These toxins are capable of causing ... -
Preharvest Salmonella Risk Contamination and the Control Strategies
(2017)Salmonella is present in most food production environments and can enter the food supply at any stage of food production from farm to fork. Control strategies for Salmonella include preharvest and postharvest aspects. ... -
Effects of partially replacing dietary corn with sugars in a dual-flow continuous culture system on the ruminal microbiome
(2023)The objective of this study was to evaluate the effects of feeding sugars as a replacement for starch on the ruminal microbiome using a dual-flow continuous culture system. Four periods of 10 days each were conducted with ... -
The Effects of Incremental Doses of Aflatoxin B1 on In Vitro Ruminal Nutrient Digestibility and Fermentation Profile of a Lactating Dairy Cow Diet in a Dual-Flow Continuous Culture System
(2023)Aflatoxin B1 (AFB1 ) is a mycotoxin known to impair human and animal health. It is also believed to have a deleterious effect on ruminal nutrient digestibility under in vitro batch culture systems. The objective of ... -
Effects of exogenous amylolytic or fibrolytic enzymes inclusion on in vitro fermentation of lactating dairy cow diets in a dual-flow continuous-culture system
(2023)The objective of this study was to determine the effects of including exogenous amylolytic or fibrolytic enzymes in a diet for high-producing dairy cows on in vitro ruminal fermentation. Eight dual-flow continuousculture ... -
In Vitro Evaluation of Postbiotics Produced from Bacterial Isolates Obtained from Rainbow Trout and Nile Tilapia against the Pathogens Yersinia ruckeri and Aeromonas salmonicida subsp. salmonicida
(2023)The use of antibiotics in aquaculture leads to the proliferation of multidrug-resistant bacteria, and an urgent need for developing new alternatives to prevent and control disease has, thus, arisen. In this scenario, ... -
Know Your Community: Animal Agriculture and the Environment
(2020)The Animal Agriculture and the Environment (AAE) Community of ASA (Environmental Quality Section) brings together members of different backgrounds to understand how livestock operations have the potential to reduce their ... -
Evaluation of cervical and uterine size, at 4 weeks postpartum, as a predictor of subsequent fertility in Jersey cattle
(2020)Uterine and cervical size of Holstein dairy cows is reported among reasons for a decline in dairy cow fertility. Therefore, the objectives of this study were to (a) determine whether size of the cervix and uterus at 4 weeks ... -
Ovarian function and the establishment and maintenance of pregnancy in dairy cows with and without evidence of postpartum uterine disease
(2020)Uterine disease early postpartum reduces fertility during the breeding period. One potential mechanism involves the reduced functional capacity of the uterus to support pregnancy. A second potential mechanism involves ... -
Bacterias cultivables resistentes a oxitetraciclina durante el proceso de vermicompostaje de excretas bovinas
(2023-05-01)Introducción: A nivel mundial se han detectado bacterias con genes de resistencia al antibiótico oxitetraciclina en estiércol de vacas lecheras, sin embargo, es una práctica común utilizar este estiércol como fertilizante. ... -
Efecto de la inclusión de Musa sp. en la conservación de ensilajes de Trichanthera gigantea (Humb. & Bonpl.) Nees.
(2021)Objetivo: Evaluar el efecto de la inclusión de diferentes niveles de Musa sp. en la calidad nutricional y fermentativa de ensilajes de Trichanthera gigantea (Humb. & Bonpl.) Nees. Materiales y Métodos: Se utilizó un ... -
Biological indicators of animal welfare in rodents in the biological essay laboratory of the University of Costa Rica: Evaluation protocols
(2019)Animal welfare can be affected by many factors that compromise both physical and mental health, that is why the more objective relationships are provided, the greater the likelihood of identifying the state of well-being ... -
Silage quality and bacterial diversity of silages inoculated with Listeria monocytogenes and Lacticasseibacillus paracasei_6714
(2023-03-01)Introduction: King grass (Cenchrus purpureus (Schumach.) Morrone, syn. Pennisetum purpuphoides) and pineapple peel (Ananas comosus) silages are food alternatives for livestock in conditions of feed shortage. Objective: ... -
Incumplimiento en el contenido nutricional de alimentos importados para mascotas en Costa Rica
(2023-05-01)La normativa que regula los alimentos balanceados asegura el bienestar de las mascotas, la salud pública y la seguridad al consumidor, por lo que es valioso corroborar el contenido de los nutrimentos declarados en las ... -
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 ...
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