Data/hora: 22/06/2024 04:40:57

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 18/06/2018
Data da última atualização: | 18/06/2018
Autoria: | GAETA, N. C.; RIBEIRO, B. L. M.; ALEMÁN, M. A. R.; YOSHIHARA, E.; MARQUES, E. C.; HELLMEISTER, A. N.; PITUCO, E. M.; GREGORY, L.
Afiliação: | Natália C. Gaeta, Departamento de Clínica Médica/FMVZ/ Universidade de São Paulo; Bruno L. M. Ribeiro, Departamento de Clínica Médica/FMVZ/ Universidade de São Paulo; Mario A. R. Alemán, Departamento de Clínica Médica/FMVZ/ Universidade de São Paulo; Eidi Yoshihara, Agência Paulista de Tecnologia dos Agronegócios/Departamento de Descentralização do Desenvolvimento/Pólo Regional de Desenvolvimento Tecnológico dos Agronegócios da Alta Sorocabana; Eduardo C. Marques, Departamento de Clínica Médica/FMVZ/ Universidade de São Paulo; Adriana N. Hellmeister, Laboratório de Viroses de Bovídeos/Instituto Biológico de São Paulo; Edviges M. Pituco, Laboratório de Viroses de Bovídeos/Instituto Biológico de São Paulo; Lilian Gregory, Departamento de Clínica Médica/FMVZ/ Universidade de São Paulo.
Título: | Serological investigation of antibodies against respiratory viruses in calves from Brazilian family farming and their relation to clinical signs of bovine respiratory disease.
Ano de publicação: | 2018
Fonte/Imprenta: | Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 38, n. 4, p. 642-648, abril 2018
Idioma: | Inglês
Notas: | Título em português: Investigação sorológica de anticorpos contra vírus respiratórios em bezerros de propriedades familiares brasileiras e sua relação com os sinais clínicos da doença respiratória dos bovinos.
Conteúdo: | Bovine respiratory disease (BRD) is responsible for economic losses in cattle production. Viruses are categorized as primary etiological agents. The aims of this study were to evaluate the presence of antibodies against bovine viral diarrhea virus (BVDV), bovine herpes virus type 1 (BoHV-1), and bovine respiratory syncytial virus (BRSV) in healthy and BRD calves from family farming in relation to clinical signs of BRD. Hundred and forty-five calves were randomly selected and physical examination was performed. Only 123 animals were classified as healthy and BRD calves. Antibodies were evaluated by virus neutralization test. Person?s Chi-square test and Fisher?s exact test were performed as univariate analysis. Binary Logistic Regression was applied as multivariate analysis. Variables with P<0.10 were considered statistically significant. Variables with 0.15<P<0.10 were considered as statistical tendencies. Antibodies against BoHV-1, BVDV, and BRSV were detected in 32%, 23% and 37% animals. Antibodies against both three viruses were detected in 26.8% of calves. The presence of antibodies against BRSV were associated to normal heart rates (P=0.018) and unilateral airflow (P=0.035). Tendency was observed to unilateral airflow (P=0.06) Statistical tendencies were observed to Ab-BoHV-1 and body temperature (P=0.119) and breathing pattern (P=0.123). The profile of antibodies against respiratory viruses in calves from Brazilian family farming was firstly described. The results confirmed the importance of some clinical signs to viral infection.
Palavras-Chave: | Respiratory viruses.
Thesagro: | Bezerro; Bovino; Virose Animal.
Thesaurus Nal: | Antibodies; Bovine herpesvirus 1; Bovine respiratory disease; Bovine respiratory syncytial virus; Bovine viral diarrhea virus; Calves; Serology; Viral diseases of animals and humans.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/178699/1/Serological-investigation-of-antibodies-against.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (62722-1) - UPE - AP - DD -  -  -  - DIS