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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
19/04/1996 |
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Data da última atualização: |
03/04/2017 |
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Autoria: |
HERR, S.; RIBEIRO, L. M. M.; CLAASSEN, E.; MYBURGH, J. G. |
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Título: |
A reduction in the duration of infection with Tritrichomonas foetus following vaccination in heifers and the failure to demonstrate a curative effect in infected bulls. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
Onderstepoort Journal Veterinary Research, v.58, n.1, p.41-45, 1991. |
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Idioma: |
Inglês |
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Conteúdo: |
Seven batches of 25% water-phase, oil-in-water vaccine were prepared from whole cultures of Titrichomonas foetus. Two inoculations were given, spaced 6 weeks apart, to virgin heifers and infected bulls. A significant reduction (P<0,01) in the duration of infection in vaccinated heifers was seen when they were challenged by being bred to a bull infected with the same isolate as that contained in the vaccine. Only 1/12 vaccinated heifers were pregnant 4,5 monts after the end of the breeeding season compared to 2/12 in the control group. The vaccine, therefore, has no practical advantage. Vaccine was supplied to 2 724 bulls on properties where the infection was present. From these bulls, 110 reliable results were obtained, where bulls had been infected, been inoculated and tested 1 month later. No curative effect was demonstrable with 69/110 (62,7%) bulls, remaining infected after the course of inoculations. There was also no difference between vaccine batches or between bulls of different ages. Further work on improving the vaccine is indicated. Three media suitable for the culture of T. foetus are described in detail. |
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Palavras-Chave: |
Bovine; Disease; Tritrichomona. |
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Thesagro: |
Bovino; Doença; Vacina. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01832naa a2200229 a 4500
001 1788189
005 2017-04-03
008 1991 bl --- 0-- u #d
100 1 $aHERR, S.
245 $aA reduction in the duration of infection with Tritrichomonas foetus following vaccination in heifers and the failure to demonstrate a curative effect in infected bulls.
260 $c1991
520 $aSeven batches of 25% water-phase, oil-in-water vaccine were prepared from whole cultures of Titrichomonas foetus. Two inoculations were given, spaced 6 weeks apart, to virgin heifers and infected bulls. A significant reduction (P<0,01) in the duration of infection in vaccinated heifers was seen when they were challenged by being bred to a bull infected with the same isolate as that contained in the vaccine. Only 1/12 vaccinated heifers were pregnant 4,5 monts after the end of the breeeding season compared to 2/12 in the control group. The vaccine, therefore, has no practical advantage. Vaccine was supplied to 2 724 bulls on properties where the infection was present. From these bulls, 110 reliable results were obtained, where bulls had been infected, been inoculated and tested 1 month later. No curative effect was demonstrable with 69/110 (62,7%) bulls, remaining infected after the course of inoculations. There was also no difference between vaccine batches or between bulls of different ages. Further work on improving the vaccine is indicated. Three media suitable for the culture of T. foetus are described in detail.
650 $aBovino
650 $aDoença
650 $aVacina
653 $aBovine
653 $aDisease
653 $aTritrichomona
700 1 $aRIBEIRO, L. M. M.
700 1 $aCLAASSEN, E.
700 1 $aMYBURGH, J. G.
773 $tOnderstepoort Journal Veterinary Research$gv.58, n.1, p.41-45, 1991.
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Registro original: |
Embrapa Pantanal (CPAP) |
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| 1. |  | ROGGIA, S.; BUENO, A. de F.; FERREIRA, B. S. C.; SÓSA-GOMEZ, D. R.; HOFFMANN-CAMPO, C. B.; HIROSE, E.; GAZZONI, D. L.; PITTA, R. M.; PEREIRA, P. R. V. da S.; OLIVEIRA, C. M. de; OLIVEIRA, F. T. de. Manejo integrado de pragas. In: SEIXAS, C. D. S.; NEUMAIER, N.; BALBINOT JUNIOR, A. A.; KRZYZANOWSKI, F. C.; LEITE, R. M. V. B. de C. (Ed.). Tecnologias de produção de soja. Londrina: Embrapa Soja, 2020. (Embrapa Soja. Sistemas de Produção, 17). p. 197-226.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Cerrados; Embrapa Florestas; Embrapa Soja. |
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