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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
17/05/1999 |
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Data da última atualização: |
10/08/2023 |
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Autoria: |
PATTERSON, D. K.; JACKSON, F.; HUNTLEY, J. F.; STEVENSON, L. M.; JONES, D. G.; JACKSON, E.; RUSSEL, J. F. |
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Título: |
Studies on caprine responsiveness to nematodiasis: segregation of male goats into responders and non-responders. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
International Journal for Parasitology, v. 26, n. 2, p. 187-194, 1996. |
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Idioma: |
Inglês |
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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. |
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Palavras-Chave: |
Controle; Helminthoses; Nematodeo gastrintestinal; Non-responders; Responders. |
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Thesagro: |
Caprino; Resistência Genética. |
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Thesaurus Nal: |
Eosinophils; Gastrointestinal nematodes; Goats; Males; Nematoda; Nematode infections. |
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Categoria do assunto: |
H Saúde e Patologia |
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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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