Browsing Artículos Científicos by Title
Now showing items 207-226 of 595
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Efecto del estrés calórico sobre la producción del ganado lechero en Costa Rica
(Universidad de Costa Rica, Costa Rica, 2019-04-10)Introducción. La producción lechera en zonas tropicales se caracteriza por una alta dependencia del recurso forrajero, lo que la hace sensible a las variables climáticas, de las cuales existe información limitada sobre ... -
Efecto del estrés calórico sobre la producción del ganado lechero en Costa Rica1
(Universidad de Costa Rica, 2019)Introducción. La producción lechera en zonas tropicales se caracteriza por una alta dependencia del recurso forrajero, lo que la hace sensible a las variables climáticas, de las cuales existe información limitada sobre ... -
Efectos genéticos aditivos y no aditivos en cruces rotacionales holstein×jersey y holstein×pardo suizo
(Universidad de Costa Rica, 2010)El objetivo del presente estudio fue cuantificar el impacto de efectos genéticos aditivos y no aditivos sobre días abie rtos (DA), edad a primer parto (EPP), vida productiva (VP) y producción de leche por día (KG) en cruces ... -
Effect of a killed whole Neospora caninum tachyzoite vaccine on the crude abortion rate of Costa Rican dairy cows under field conditions
(Elsevier B.V, 2004-06-04)A standard field trial was carried out to assess the effect of a commercial Neospora-vaccine based on whole killed tachyzoites (Bovilis–Neoguard, Intervet1) on the abortion rate. Eight hundred and seventy-six cows, over ... -
Effect of adjuvants on the antibody response of mice to Bothrops asper (Terciopelo) snake venom
(Brazilian Journal of Medical and Biological Research, 1996)The adjuvant properties of several immunostimulant molecules on the murine antibody response to Bothrops asper snake venom were evaluated. Mice receiving venom together with either sodium alginate, calcium alginate, aluminum ... -
Effect of an energy supplementation, weaning and oestrous synchronisation on ovarian activity and ovulation in early postpartum primiparous Bos indicus cows raised in the tropics of Costa Rica
(American Society for Microbiology., 2015-09-07)To evaluate the effect of an energy supplementation, 26 postpartum Bos indicus cows were assigned either to receive an energy diet supplementation (n ≤ 11, SSD) or no supplementation (n ≤ 15, NSSD). Cows in the SSD treatment ... -
Effect of management and host factors on seroprevalence of bovine anaplasmosis and babesiosis in Costa Rica
(Elsevier B.V, 1993-11-16)The relationships between the seroprevalences of Anaplasma rnarginale, Babesia bige mina, Babesia bovis and some selected factors were assessed. Factors studied were age, breed, herd size, farm size, rotational grazing ... -
Effect of neosporosis on productive and reproductive performance of dairy cattle in Costa Rica
(Elsevier B.V, 2005-12)A cross-sectional study was conducted to assess the effect of neosporosis on productive and reproductive parameters in dairy cows. Cows (n = 2743) from 94 farms located in the most important dairy areas in Costa Rica were ... -
Effect of ruminally protected Methionine on the productive and reproductive performance of grazing Bos indicus heifers raised in the humid tropics of Costa Rica
(Springer Science + Business Media B.V., 2008-03-11)With the objective of evaluating the effect of methionine supplementation prior to a breeding program, thirty one heifers (Bos taurus x Bos indicus) were used averaging 386 ± 29 days of age and a mean body weight of ... -
Effect of the use of probiotic Bacillus subtilis (QST 713) as a growth promoter in broilers: an alternative to bacitracin methylene disalicylate
(Elsevier Inc. on behalf of Poultry Science Association Inc, 2021-06-29)The global poultry trend toward the more responsible use of antibiotics is becoming recurrent and has demanded the need to generate new natural alternatives. Probiotics have gained importance as an option to use as growth ... -
Effects of Autologous Conditioned Plasma® (ACP) on the healing of surgically induced core lesions in equine superficial digital flexor tendon
(WordPress, 2014-11)Tendon pathologies are among the most common musculoskeletal disorders in horses. After damage the tendon repairs by forming disorganized scar tissue that is of inferior functional quality than normal tendon, leading ... -
Effects of local and regional climatic fluctuations on dengue outbreaks in southern Taiwan
(PLOS ONE, 2017-06-02)Background: Southern Taiwan has been a hotspot for dengue fever transmission since 1998. During 2014 and 2015, Taiwan experienced unprecedented dengue outbreaks and the causes are poorly understood. This study aims to ... -
Effects of season on donor and recipient cows and calf performance from birth to weaning in embryo transfer programs in the tropics
(MDPI, 2021-12-19)The aim of this study was to assess the seasonal effect of an embryo transfer program in the tropics on the donor response, recipient reproductive performance and calf growth from birth to weaning. This study included ... -
Eficiencia técnica en hatos lecheros de Costa Rica
(Universidad de Costa Rica, 2015)Eficiencia técnica en hatos lecheros en Costa Rica. El objetivo de este trabajo fue cuantificar índices de eficiencia técnica de 1086 hatos lecheros de Costa Rica (año 2007) utilizando Análisis de Frontera Estocástica. ... -
Ehrlichiosis y anaplasmosis en Costa Rica
(Colegio de Médicos y Cirujanos de Costa Rica, 2013-07)La ehrlichiosis y la anaplasmosis son enfermedades infecciosas producidas por bacterias de la familia Anaplasmataceae y transmitidas por garrapatas. Ambas afectan, entre otras especies, al hombre, ocasionando sintomatología ... -
Emergence of an outbreak-associated Clostridium difficile variant with increased virulence
(Journal of Clinical Microbiology, 2015-04-23)The prevalence of Clostridium difficile infections has increased due to the emergence of epidemic variants from diverse genetic lineages. Here we describe the emergence of a novel variant during an outbreak in a Costa Rican ... -
Emerging Lagochilascaris minor infections in domestic cats from Costa Rica: A zoonotic threat for the region
(Elsevier, 2022)Two cases of lagochilascariasis minor in domestic cats from Costa Rica within a period of two months are recorded for the first time in Central America. Clinical findings included purulent discharge and a tumor in the left ... -
Encefalitis arbovirales en caballos de Costa Rica: 2009-2017
(Universidad Nacional, Costa Rica, 2017)El objetivo de esta investigación fue establecer los agentes arbovirales asociados con la presentación de enfermedades neurológicas en caballos costarricenses en el período 2009-2017. -
Enhancing community health: Veterinary services for underserved areas in Costa Rica with a One Health Approach
(Elsevier Science B.V, 2024-02-09)In underserved areas of Costa Rica, community veterinary services aim to provide comprehensive care for companion animals, covering preventive, therapeutic, and surgical medicine. Emphasizing a One Health approach, our ... -
Entomological and Ecological Aspects of Six Sylvatic Species of Triatomines (Hemiptera, Reduviidae) from the Collection of the National Biodiversity Institute of Costa Rica, Central America
(Memórias do Instituto Oswaldo Cruz, 2001)A total of 797 specimens of wild adult triatomines, belonging to six species from the entomological collections of the Costa Rican National Biodiversity Institute, was studied from the standpoint of their relative ...