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Now showing items 1061-1070 of 1103
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 ...
Pasantía en el Instituto Regional de Estudios en Sustancias Tóxicas (IRET), Universidad Nacional, Costa Rica
(Universidad Nacional, Costa Rica, 2022)
Esta pasantía tuvo una duración de 344 horas y fue realizada desde el 1 de abril
hasta el 1 de junio de 2020, en el Instituto Regional de Sustancias Tóxicas de la
Universidad Nacional en Heredia, Costa Rica.
Durante la ...
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 ...
Molecular, morphological and histopathological evidence of Spirometra mansoni in wild and domestic animals from Costa Rica
(Elsevier Science B.V, 2024-04-30)
Spirometra mansoni is a diphyllobothroid cestode and one of the causing agents of sparganosis, a zoonotic
foodborne and waterborne infection in humans. This parasite has an indirect life cycle with domestic and wild
canids ...
Optimizing agronomic practices for pineapple (Ananas comosus (L). Merr. ‘MD-2’ cultivar) production based on growth stages
(International Society for Horticultural Science, 2023)
Introduction – Descriptions of the developmental stages of crops are necessary for optimal scientific communication and technology transfer between researchers, technicians, and farmers. Although pineapple cultivation is ...
Brucella intracellular life: from invasion to intracellular replication
(Elsevier, 2002)
Brucella organisms are pathogens that ultimate goal is to propagate in their preferred niche, the cell. Upon cell contact the bacteria is internalized via receptor molecules by activating small GTPases of the Rho subfamily ...
Evaluation of two vaccines for the treatment of pythiosis insidiosi in horses
(Kluwer Academic Publishers, 1992)
Two vaccines to treat pythiosis insidiosi in horses were evaluated in 71 Costa Rican horses between
1982 to 1988. One vaccine used a cell-mass (CMV) as antigen and the other a soluble concentrated
antigen (SCAV). Both ...
Ten simple rules for aspiring scientists in a low-income country
(Public Library of Science, 2008-05-30)
Being a scientist entails a common set of characteristics. Admiring nature and having concern for social issues; possessing a strong academic background, team work abilities, honesty, discipline, skepticism, communication ...