Browsing Artículos Científicos by Subject "SHEEP"
Now showing items 1-9 of 9
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Anthelmintic resistance in commercial sheep farms in Costa Rica
(Elsevier B.V., 2021)Forty-eight commercial sheep farms were sampled between the years 2017 and 2019 to evaluate the percentage of reduction of the three families of broad-spectrum anthelmintic drugs available in Costa Rica - benzimidazoles ... -
Comparing body condition score and FAMACHA© to identify hair-sheep ewes with high faecal egg counts of gastrointestinal nematodes in farms under hot tropical conditions
(Elsevier B.V., 2018-08-16)Data from a targeted selective treatment (TST) survey in three sheep farms was used to compare body condition scores (BCS) ≤ 2 and FAMACHA© scores ≥4 or ≥3 as criteria to identify ewes with ≥ 750 eggs per gram of faeces ... -
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 ... -
First report of anthelmintic resistance in gastrointestinal nematodes of sheep from Costa Rica
(Revista Internacional de Medicina Veterinaria, 2011)As the prevalence and severity of anthelmintic resistance continue to rise, nematode infections in sheep correspondingly reduce the profitability of the sheep industry. In Costa Rica, sheep production systems are increasing ... -
First report of Trypanosoma vivax infection in sheep from Nicaragua
(Elsevier Science B.V, 2021-07)In Central America, outbreaks of trypanosomiasis by Trypanosoma vivax have been recorded only in cattle. This is the first report of an outbreak of trypanosomiasis by T. vivax in 30 Pelibuey sheep (2 to 7 years old, male ... -
Medroxiprogesterona acetato para la elaboración de dispositivos intravaginales caseros usados en la sincronización del estro en ovinos de pelo: Evaluación de su eficacia, sus efectos secundarios y comparación con un dispositivo comercial en hatos de Costa Rica.
(Universidad Nacional, Costa Rica, 2017-06-28)El objetivo del trabajo fue determinar la eficacia farmacológica y los efectos secundarios de un dispositivo intravaginal de fabricación casera elaborado con acetato de medroxiprogestrona para la sincronización del estro ... -
Molecular characterization of Brucella ovis in Argentina
(Elsevier B.V., 2020-04-22)La brucelosis en los carneros es causada por Brucella ovis o Brucella melitensis y se considera una de las enfermedades infecciosas más importantes de los machos en los países donde se crían ovejas. Caracterización molecular ... -
Presence of Maedi-Visna in Costa Rican sheep flocks
(Small Ruminant Research, 2015-01-22)A total of 359 sheep serum samples from 15 farms were analyzed for the presence of antibodies against Maedi Visna Virus (MVV) by Enzyme-linked Immunosorbent Assay (ELISA). Additionally, a survey was applied to the sheep ... -
Seroprevalence of Toxoplasma gondii and Neospora caninum infections and associated factors in sheep from Costa Rica
(Universidad Nacional, Costa Rica, 2019-01-08)The presence of antibodies against Toxoplasma gondii and Neospora caninum were analyzed in 392 sheep sera from ten Costa Rican ovine flocks using indirect immuno-enzymatic assays. Additionally, general information about ...