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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
17/05/1999 |
Data da última atualização: |
10/08/2023 |
Autoria: |
PATTERSON, D. K.; JACKSON, F.; HUNTLEY, J. F.; STEVENSON, L. M.; JONES, D. G.; JACKSON, E.; RUSSEL, J. F. |
Título: |
Studies on caprine responsiveness to nematodiasis: segregation of male goats into responders and non-responders. |
Ano de publicação: |
1996 |
Fonte/Imprenta: |
International Journal for Parasitology, v. 26, n. 2, p. 187-194, 1996. |
Idioma: |
Inglês |
Conteúdo: |
Eighty-three 2-4-year-old intact male goats exposed to a combination of artificial and natural challenge were segregated into responders and non-responders by ranking of weekly faecal egg counts (FECs). Retrospective analysis of samples over a 15-week-period showed responders had a statistically lower mean FEC than non-responders. Estimates of repeatability between consecutive egg counts were significant in both groups. The 6 top responders and bottom non-responders were subsequently given an artificial trickle challenge with Teladorsagia circumcincta and Trichostrongylus vitrinus. Mean faecal egg output was significantly lower in responders than non-responders. Peripheral eosinophil numbers following challenge were significantly greater in responder than non-responder goats. Abomasal and intestinal worm burdens were considerably lower in responders, with evidence of retardation of worm development compared to non-responders. Both abomasal and jejunal tissue eosinophil numbers were significantly higher in responders, although there was no difference in mucosal mast cell or globule leucocyte numbers. These results suggest that under temperate climatic conditions, it is possible to segregate male goats into responders and non-responders on the basis of simple parasitological criteria. |
Palavras-Chave: |
Controle; Helminthoses; Nematodeo gastrintestinal; Non-responders; Responders. |
Thesagro: |
Caprino; Resistência Genética. |
Thesaurus Nal: |
Eosinophils; Gastrointestinal nematodes; Goats; Males; Nematoda; Nematode infections. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02307naa a2200349 a 4500 001 1523999 005 2023-08-10 008 1996 bl uuuu u00u1 u #d 100 1 $aPATTERSON, D. K. 245 $aStudies on caprine responsiveness to nematodiasis$bsegregation of male goats into responders and non-responders.$h[electronic resource] 260 $c1996 520 $aEighty-three 2-4-year-old intact male goats exposed to a combination of artificial and natural challenge were segregated into responders and non-responders by ranking of weekly faecal egg counts (FECs). Retrospective analysis of samples over a 15-week-period showed responders had a statistically lower mean FEC than non-responders. Estimates of repeatability between consecutive egg counts were significant in both groups. The 6 top responders and bottom non-responders were subsequently given an artificial trickle challenge with Teladorsagia circumcincta and Trichostrongylus vitrinus. Mean faecal egg output was significantly lower in responders than non-responders. Peripheral eosinophil numbers following challenge were significantly greater in responder than non-responder goats. Abomasal and intestinal worm burdens were considerably lower in responders, with evidence of retardation of worm development compared to non-responders. Both abomasal and jejunal tissue eosinophil numbers were significantly higher in responders, although there was no difference in mucosal mast cell or globule leucocyte numbers. These results suggest that under temperate climatic conditions, it is possible to segregate male goats into responders and non-responders on the basis of simple parasitological criteria. 650 $aEosinophils 650 $aGastrointestinal nematodes 650 $aGoats 650 $aMales 650 $aNematoda 650 $aNematode infections 650 $aCaprino 650 $aResistência Genética 653 $aControle 653 $aHelminthoses 653 $aNematodeo gastrintestinal 653 $aNon-responders 653 $aResponders 700 1 $aJACKSON, F. 700 1 $aHUNTLEY, J. F. 700 1 $aSTEVENSON, L. M. 700 1 $aJONES, D. G. 700 1 $aJACKSON, E. 700 1 $aRUSSEL, J. F. 773 $tInternational Journal for Parasitology$gv. 26, n. 2, p. 187-194, 1996.
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1. |  | RESTREPO-COUPE, N.; LEVINE, N. M.; CHRISTOFFERSEN, B. O.; ALBERT, L. P.; WU, J.; COSTA, M. H.; GALBRAITH, D.; IMBUZEIRO, H.; MARTINS, G.; ARAUJO, A. C. da; MALHI, Y. S.; ZENG, X.; MOORCROFT, P.; SALESKA, S. R. Do dynamic global vegetation models capture the seasonality of carbon fluxes in the Amazon basin? A data-model intercomparison. Global Change Biology, v. 23, n. 1, p. 191-208, Jan. 2017.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Amazônia Oriental. |
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2. |  | RESTREPO-COUPE, N.; ROCHA, H. R. da; HUTYRA, L. R.; ARAUJO, A. C. da; BORMA, L. S.; CHRISTOFFERSEN, B.; CABRAL, O. M. R.; CAMARGO, P. B. de; CARDOSO, F. L.; COSTA, A. C. L. da; FITZJARRALD, D. R.; GOULDEN, M. L.; KRUIJT, B.; MAIA, J. M. F.; MALHI, Y. S.; MANZI, A. O.; MILLER, S. D.; NOBRE, A. D.; RANDOW, C. von; SÁ, L. D. ABREU; SAKAI, R. K.; TOTA, J.; WOFSY, S. C.; ZANCHI, F. B.; SALESKA, S. R. What drives the seasonality of photosynthesis across the Amazon basin: a cross-site analysis of eddy flux tower measurements from the Brasil flux network. Agricultural and Forest Meteorology, v. 182-183, p. 128-144, Dec. 2013.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Meio Ambiente. |
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