Data/hora: 25/06/2024 14:33:27

Biblioteca(s): | Embrapa Caprinos e Ovinos; Embrapa Gado de Corte.
Data corrente: | 01/08/1992
Data da última atualização: | 15/01/2014
Autoria: | BERNE, M. E. A.
Título: | Resposta imunologica humoral de bovinos ao extrato de larvas de Boophilus microplus (Canestrini, 1887).
Ano de publicação: | 1982
Fonte/Imprenta: | Porto Alegre: UFRGS, 1982.
Páginas: | 72p.
Idioma: | Português
Notas: | Tese Mestrado.
Conteúdo: | The immune response of cattle to a crude extract of Boophilus microplus larvae was investigated in two groups of animals, one treated and one control. The treated group received three subcutaneous  inoculations of 1 ml of the crude extract 21 days apart. In the  first inoculation the extract was emulsinated with Freund's complete adjuvant, in the second with Freund's incomplete adjuvant and  in the  third no adjuvant was added. The control group received similar treatments with the extract being  replaced by NaCI 0.15 M. Ten days after the last inoculation, each animal was challenged with estimated by measuring the number and weight  of engorged females, the egg's weight and hatching percentage, which showed  no differences. The bovine sera were analyzed by passive hemagglutination, double diffusion and immunoelectrophoresis before and after the  antibodies were detected as an immune response  to the crude precipitating antibodies  were detected as an immune response to the crude extract.  The treated group showed significante increase ( a < 0.01) in the levels of hemagglutinating antibodies after the treatment when  compared  to the control group. After the challenge, this difference  disappreared. the precipitating antibodies showed similar patterns. Despite the presence of a humoral immune response, the antibodies did not protect the hosts to the challenge.
Palavras-Chave: | Ruminant.
Thesagro: | Ácaro; Imunologia; Parasitologia; Ruminante.
Thesaurus Nal: | immunology; parasitology.
Categoria do assunto: | --
Registro original: | Embrapa Gado de Corte (CNPGC)

Exemplares:

CNPGC - (7858-1) - ADD - TS - PP - T406/82 - BER - T406/82 - DIS
CNPC - (2365-1) - ADD - TS - PP - TS 1982.00006 - BER - 1982.00006 - DIS