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Antihelmintic resistance in gastrointestinal bovine nematodes in municipalities of Cundinamarca and Boyaca (Colombia)Resistencia a los antihelmínticos en nematodos gastrointestinales de bovinos en municipios de Cundinamarca y Boyacá
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2008)
A study was conducted in 36 farms of the Bogotá Savannah, Ubaté and Chiquinquirá Valleys and Tequendama Region (Cundinamarca), to determine via in vivo egg reduction count test (ERCT) antihelmintics resistance to bovine gastrointestinal nematodes. Resistance was determined in. 40 calves, three to 12 months of age, allotted to four groups of ten animals each one: 1) control (untreated); 2) albendazol 25% (5 mg/kg); ...
Approaching the real serologic prevalence of leptospirosis in breeding swine.Aproximación a la prevalencia serológica real de la leptospirosis en porcinos-cría.
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2001)
Regular diagnosis of leptospirosis is carried out by the microscopic agglutination test (MAI) which is defined as positive when readings are ≥ 1:100. Since this test only detects antibodies classified as M, it is considered ineffective for acceptable diagnosis in both: individuals or populations. Consequently, the level of infection in swine farms has been underestimated. A methodology was developed to improve reliability ...
Diagnosis and molecular characterization of natural cattle infections produced by Trypanosoma spp. in the Colombian Orinoco regionDiagnóstico y caracterización molecular de infecciones naturales por Trypanosoma spp. en bovinos de la Orinoquía Colombiana
(Corporación Colombiana de Investigación Agropecuaria (Agrosavia), 2010)
Because of the limitations of direct methods for the diagnosis of trypanosomes in small quantities, molecular methods which allow identification of the species with a small amount of parasite DNA were analyzed. A study was conducted at the Carimagua Experimental Station, located in the flat high plains of Orinoco Colombia. From 500 'Sanmartinero' and 'Zebú' breeding cattle, native to the area, 70 clinically healthy ...