Browsing Artículos Científicos by Title
Now showing items 186-205 of 573
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Doble infección en ovinos de Costa Rica, causada por Dermatofilus congolensis y Virus del Ectima Contagioso (ORF)
(Universidad Nacional, Costa Rica, 1984)En los años 1981 y 1982 se estudiaron dos fincas, una en Upala y otra en el Valle de Orosi, con rebaños de 570 y 1632 ovinos, respectivamente. En la finca de Upala se diagnosticó por primera vez en el país el ectima ... -
Dueños responsables: concientizando, informando y viendo crecer
(Biocenosis publicación de la Universidad Estatal a Distancia, 2017-03-30)El ser humano y las especies domésticas guardan hoy en día una relación muy cercana, la cual puede favorecer la transmisión de agentes zoonóticos y causar enfermedad. Con el objetivo de crear conciencia sobre los propietarios ... -
Dynamics of infections with gastrointestinal parasites and Dictyocaulus viviparus in dairy and beef cattle from Costa Rica
(Elsevier B.V, 2007-09-30)A longitudinal survey was carried out to determine and describe the prevalence and intensity of gastrointestinal parasite infections and Dictyocaulus viviparus in a dairy and a beef cattle farm of two different ecological ... -
Ecological control of Triatoma dimidiata (Latreille, 1811): five years after a Costa Rican pilot project
(Instituto Oswaldo Cruz, 2008)An ecological pilot project for the control of Triatoma dimidiata allowed a new evaluation four and five years after environmental modifications in the peridomestic areas of 20 households. It was verified that the two ... -
Ecological patterns of blood-feeding by kissing-bugs (Hemiptera: Reduviidae: Triatominae)
(Instituto Oswaldo Cruz, 2011-06)Host use by vectors is important in understanding the transmission of zoonotic diseases, which can affect hu mans, wildlife and domestic animals. Here, a synthesis of host exploitation patterns by kissing-bugs, vectors of ... -
Economic values for production and functional traits in Holstein cattle of Costa Rica
(Elsevier Science B.V., 2001-08-20)Economic values for production traits (carrier, fat, protein, and dressing percentage) and functional traits (conception rate, survival rate, body weight, and rumen capacity) were calculated for Holstein cattle of Costa ... -
Ectoparasites of dogs in home environments on the Caribbean slope of Costa Rica
(Revista Brasileira de Parasitologia Veterinaria, 2012-06)Reports on ectoparasites on dogs in Central America are scarce. The aim of this study was to identify flea, louse and tick species infesting dogs in home environments on the Caribbean slope of Costa Rica, and determine ... -
Editorial: Insights in infectious agents and disease: 2021
(Frontiers Media S.A, 2023-07-10)The emergence and spread of infectious diseases with pandemic potential occurred trough human history, and were recently reviewed in the section Infectious Agents and Disease by Piret and Boivin (2021). Major pandemics and ... -
Efectividad de la autovacuna en un caso de papilomavirus canino en un perro Gran Danés en Costa Rica
(Rev Inv Vet Perú de la Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos., 2022-02-25)El objetivo del presente estudio fue determinar la efectividad de una autovacuna para papilomas ocasionados por papilomavirus canino (CPV) en la región facial de un perro Gran Danés de tres meses. Se colectó un grupo de ... -
Efecto de factores genéticos y ambientales sobre el recuento de células somáticas en ganado lechero de Costa Rica
(Universidad de Costa Rica, 2016-07-05)El estudio evaluó el efecto de factores genéticos y ambientales sobre el Score de Célu- las Somáticas [SCS= log2 (RCS/100 000)+3] en ganado lechero de Costa Rica. Se analizaron 198 685 registros diarios, provenientes ... -
Efecto del estatus serológico al virus de la leucosis enzoótica bovina (BLV) sobre la producción de leche en hatos lecheros de Costa Rica
(Universidad Nacional, Costa Rica, 2012-09-02)Se realizó un estudio longitudinal para determinar el efecto del estatus serológico al virus de la leucosis enzoótica bovina (BLV) sobre la producción de leche en hatos lecheros especializados de Costa Rica. Se analizó ... -
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 ... -
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 ...