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Now showing items 21-26 of 26
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 ...
Characterization of PRRSV and dynamics of the virus in swine farms in Costa Rica
(Universidad Nacional, Costa Rica, 2018)
The Porcine ReproducPve and Respiratory Syndrome (PRRS) was first
recognized clinically in the EU in 1987, and thereaYer it spread through
Europe and America. The virus has two genotypes: ...
Mejoramiento de la reproducción bovina: leche, carne y calidad seminal
(Tecnológico de Costa Rica, 2022-09-14)
La eficiencia reproductiva tiene un impacto importante en la rentabilidad de la industria ganadera. Un porcentaje significativo de insuficiencia reproductiva es atribuible a la subfertilidad del toro (Butler et al., 2020). ...
Infectious agents associated with diarrhoea of calves in the canton of Tilarán, Costa Rica
(Elsevier Science B.V, 1997-01)
A case-control study of calves under 3 months of age was carried out by weekly visits to 15 farms in the canton of Tilarán, Costa Rica. Most farms were dedicated to beef or dual-purpose (DP) production. Faecal samples were ...
Field evaluation of a multiplex real-time reverse transcription polymerase chain reaction assay for detection of Vesicular stomatitis virus
(American Association of Veterinary Laboratory Diagnosticians, 2009)
Sporadic outbreaks of vesicular stomatitis (VS) in the United States result in significant
economic losses for the U.S. livestock industries because VS is a reportable disease that clinically mimics foot-
and-mouth ...
Serological survey of small mammals in a vesicular stomatitis virus enzootic area
(Wildlife Disease Association, 1996-04-01)
Small nmamnnmals were captured in a Costa Rican dairy farm located ium a vesicular
stouiiatitis virus (VSV) enzootic focus, in order to determine which species were naturally infected
by this virus. Monthly captures were ...