Results: 14

Seropositivity for Bovine Viral Diarrhea and Enzootic Bovine Leukemia viruses in Blanco Orejinegro cattle in Colombia and infection associated-factors

Rev. med. vet. zoot; 68 (2), 2021
ABSTRACT Serological controls for diseases of viral origin in animal production systems and the identification of factors associated with infections are decisive elements to establish prevention and control measures. The aim of this study was to establish the serological status for Bovine Viral Diarrhea ...

Mycobacterium avium subspecies paratuberculosis and bovine leukemia virus seroprevalence and associated risk factors in dairy herds in Minas Gerais state, Brazil

Mycobacterium avium subesp. paratuberculosis (MAP) e o vírus da leucemia bovina (BLV) são agentes que causam grandes perdas econômicas nos rebanhos. O objetivo deste estudo foi avaliar a situação epidemiológica da paratuberculose bovina (PTB) e leucose enzoótica bovina (EBL) em rebanhos leiteiros ...

Indirect ELISA (iELISA) standardization for the diagnosis of bovine enzootic leukosis

Pesqui. vet. bras; 40 (12), 2020
Enzootic bovine leukosis (EBL) is an infectious disease caused by bovine leukemia virus (BLV) that affects cattle worldwide. Agar gel immunodiffusion (AGID) was the reference test for EBL diagnosis for many years, but enzyme-linked immunosorbent assay (ELISA) showed higher sensitivity, was faster to perf...

Frecuencia de anticuerpos contra el virus de la leucosis bovina (VLB) en leche de tanque

Rev. MVZ Córdoba; 24 (3), 2019
RESUMEN Objetivo. Determinar presencia de anticuerpos contra VLB en muestras de leche de tanques, en varios departamentos de Colombia. Materiales y métodos. De 2220 muestras llegadas al laboratorio de calidad de la leche de la Universidad de Antioquia para análisis de calidad para pago de una quinc...

Infección experimental en ovinos con el virus de leucosis bovina: dosis mínima de células BLV-FLK y virus libre de células, y actividad neutralizante de anticuerpos naturales
Experimental infection of sheep with Bovine leukemia virus (BLV): Minimum dose of BLV-FLK cells and cell-free BLV and neutralization activity of natural antibodies

Rev. argent. microbiol; 51 (4), 2019
Abstract Bovine leukemia virus (BLV) is an important cattle pathogen that causes major economic losses worldwide, especially in dairy farms. The use of animal models provides valuable insight into the pathogenesis of viral infections. Experimental infections of sheep have been conducted using blood from ...

Performance assessment of imported ELISA in the serodiagnosis of the enzootic bovine leukosis in herds of Pernambuco state, Brazil

Arq. Inst. Biol; 86 (), 2019
Enzootic bovine leukosis (EBL) is an infectious disease of cosmopolitan distribution and chronic character caused by a virus of the Retroviridae family, bovine leukemia virus (BLV). The epidemiological situation of EBL in Brazil has motivated studies to improve its diagnosis, based on the recommended ser...

Serological status of IBR, BVD, leucosis, Leptospira and Neospora caninum in bovine females of the department of Santander, Colombia

Rev. MVZ Córdoba; 23 (2), 2018
Abstract Objective. To determine the serological status of bovine females for infectious bovine rhinotracheitis (IBR), bovine viral diarrhea (BVD), leucosis, Leptospira and Neospora caninum in the department of Santander, Colombia. Materials and methods. Convenience sampling was conducted on 460 cattle f...

Development of an indirect ELISA based on recombinant capsid protein to detect antibodies to bovine leukemia virus

Braz. j. microbiol; 49 (supl.1), 2018
Abstract Serological testing and culling infected animals are key management practices aiming eradication of bovine leukemia virus infection. Here, we report the development of an indirect ELISA based on BLV recombinant capsid protein (BLVp24r) to detect anti-BLV antibodies in cattle serum. The BLVp24r w...

Imunidade celular em vacas Holandesas soropositivas para o Vírus da Leucose Bovina (BLV) durante o período de transição

Esta pesquisa avaliou a dinâmica dos leucócitos e das subpopulações de linfócitos em vacas Holandesas soropositivas para o BLV no período de transição. Amostras de sangue (n=72) provenientes de 12 vacas foram coletadas entre as semanas -2 e +3 para a realização do leucograma, imunofenotipagem, ...

Neoplasmas bovinos diagnosticados no Setor de Patologia Veterinária da UFRGS, Porto Alegre (2005-2014)

Pesqui. vet. bras; 37 (2), 2017
Realizou-se um estudo retrospectivo com o objetivo de determinar os tipos de neoplasmas em bovinos e a sua frequência. Foram analisados os casos de necropsias e biopsias de bovinos com diagnóstico de neoplasia, submetidos ao Setor de Patologia Veterinária da Universidade Federal do Rio Grande do Sul (...