Data/hora: 15/06/2024 18:36:33

Biblioteca(s): | Embrapa Pecuária Sudeste.
Data corrente: | 15/12/2008
Data da última atualização: | 09/03/2023
Autoria: | OLIVEIRA, M. C. de S.; OLIVEIRA-SIQUEIRA, T. C. G.; REGITANO, L. C. de A.; ALENCAR, M. M. de; NÉO, T. A.; SILVA, A. M.; OLIVEIRA, H. N.
Afiliação: | MARCIA CRISTINA DE SENA OLIVEIRA, CPPSE; T.C.G. Oliveira-Sequeira, UNESP/Botucatu; LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE; MAURICIO MELLO DE ALENCAR, CPPSE; Talita A. Néo, UFSCar; Ana Mary Silva, FAPESP; H. N. Oliveira, UNESP/Botucatu.
Título: | Detection of Babesia bigemina in cattle of different genetic groups and in Rhipicephalus (Boophilus) microplus tick.
Ano de publicação: | 2008
Fonte/Imprenta: | Veterinary Parasitology, v. 155, n. 3-4, p. 281-286, aug. 2008.
DOI: | 10.1016/j.vetpar.2008.04.022
Idioma: | Inglês
Conteúdo: | Babesia bigemina infections were investigated in four genetic groups of beef cattle and in Rhipicephalus (Boophilus) microplus engorged female ticks. Blood samples and engorged female ticks were collected from 15 cows and 15 calves from each of the following genetic groups: Nelore, Angus Nelore, Canchim Nelore, and Simmental Nelore. Microscopic examination of blood smears and tick hemolymph revealed that merozoites of B. bigemina (6/60) as well as kinetes of Babesia spp. (9/549) were only detected in samples (blood and ticks, respectively) originated from calves. PCR-based methods using primers for specific detection of B. bigemina revealed 100% infection in both calves and cows, regardless the genetic group. Tick infection was detected by nested-PCR amplifications showing that the frequency of B. bigemina was higher (P < 0.01) in female ticks collected from calves (134/549) than in those collected from cows (52/553). The frequency of B. bigemina was similar in ticks collected from animals, either cows or calves, of the four genetic groups (P > 0.05).
Palavras-Chave: | PCR; Tick.
Thesaurus Nal: | babesiosis; beef cattle.
Categoria do assunto: | H Saúde e Patologia
Registro original: | Embrapa Pecuária Sudeste (CPPSE)
Exemplares: | CPPSE - (18131-1) - UPC - AP - DD - PROCI-2008.00166 - OLI - 2008.00166 - DIS