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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
05/04/2005 |
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Data da última atualização: |
05/04/2005 |
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Autoria: |
BAKER, R. L.; AUDHO, J. O.; ADUDA, E. O.; THORPE, W. |
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Título: |
Genetic resistance to gastro-intestinal nematode parasites in Galla and Small East African goats in the sub-humid tropics. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Animal Science, v. 73, pt 1, p. 61-70, 2001. |
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Idioma: |
Inglês |
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Conteúdo: |
A study was carried out from 1992 to 1996 to compare lhe resistance to naturally acquired gastro-intestinal (Gl) nematode parasite infections (predominantly Haemonchus contortus) of GalIa and SmalI East African goats in lhe sub-humid coastal region of Kenya. A total of 204 GalIa and 349 SmalI East African (SEA) kids were born from five kiddings. These were lhe progeny of 18 GalIa and 17 SEA bucks. Live weights (LWT), blood packed-celI volume (PCV) and faecal egg count (FEC) were recorded at 1- to 2-month intervals from birth to about 14 months of age. The SEA kids were more resistant to GI nematode parasites than GalIa kids as shown by their significantly lower FEC (P < 0.001) in lhe post-weaning period (8- to 14-month-old kids) and lower mortality from birth to 14 months : of age (P < 0.05). There was no significant (P > 0.05) breed effect on PCV; but GalIa kids were significantly heavier (P < 0.001) at alI measurement times between birth and 14 months of age. Heritability estimates for LWT, pcv and FEC at lhe different sampling times were characterized by high standard errors. Heritability estimates for records taken at 4.5 and 8 months of age from a repeated measures analysis were 0.18 (s.e. 0.08) for pcv and 0.13 (s.e.0.07) for logarithm-transformed FEC. The phenotypic and genetic correlation estimates between pcv and LFEC were moderately to highly nega tive and averaged -0.36 and -0.53, respectively. The results are discussed in relation to the limited evidence for resistance to GI nematode infections in goats and compared with lhe much stronger evidence for resistance in sheep. MenosA study was carried out from 1992 to 1996 to compare lhe resistance to naturally acquired gastro-intestinal (Gl) nematode parasite infections (predominantly Haemonchus contortus) of GalIa and SmalI East African goats in lhe sub-humid coastal region of Kenya. A total of 204 GalIa and 349 SmalI East African (SEA) kids were born from five kiddings. These were lhe progeny of 18 GalIa and 17 SEA bucks. Live weights (LWT), blood packed-celI volume (PCV) and faecal egg count (FEC) were recorded at 1- to 2-month intervals from birth to about 14 months of age. The SEA kids were more resistant to GI nematode parasites than GalIa kids as shown by their significantly lower FEC (P < 0.001) in lhe post-weaning period (8- to 14-month-old kids) and lower mortality from birth to 14 months : of age (P < 0.05). There was no significant (P > 0.05) breed effect on PCV; but GalIa kids were significantly heavier (P < 0.001) at alI measurement times between birth and 14 months of age. Heritability estimates for LWT, pcv and FEC at lhe different sampling times were characterized by high standard errors. Heritability estimates for records taken at 4.5 and 8 months of age from a repeated measures analysis were 0.18 (s.e. 0.08) for pcv and 0.13 (s.e.0.07) for logarithm-transformed FEC. The phenotypic and genetic correlation estimates between pcv and LFEC were moderately to highly nega tive and averaged -0.36 and -0.53, respectively. The results are discussed in relation to the limited evidence for resi... Mostrar Tudo |
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Palavras-Chave: |
Melhoramento genético; Nematóide gastrintestinal; Região tropical. |
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Thesagro: |
Caprino; Genética Animal; Haemonchus Contortus; Resistência Genética. |
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Thesaurus Nal: |
Africa. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02363naa a2200253 a 4500
001 1531060
005 2005-04-05
008 2001 bl uuuu u00u1 u #d
100 1 $aBAKER, R. L.
245 $aGenetic resistance to gastro-intestinal nematode parasites in Galla and Small East African goats in the sub-humid tropics.
260 $c2001
520 $aA study was carried out from 1992 to 1996 to compare lhe resistance to naturally acquired gastro-intestinal (Gl) nematode parasite infections (predominantly Haemonchus contortus) of GalIa and SmalI East African goats in lhe sub-humid coastal region of Kenya. A total of 204 GalIa and 349 SmalI East African (SEA) kids were born from five kiddings. These were lhe progeny of 18 GalIa and 17 SEA bucks. Live weights (LWT), blood packed-celI volume (PCV) and faecal egg count (FEC) were recorded at 1- to 2-month intervals from birth to about 14 months of age. The SEA kids were more resistant to GI nematode parasites than GalIa kids as shown by their significantly lower FEC (P < 0.001) in lhe post-weaning period (8- to 14-month-old kids) and lower mortality from birth to 14 months : of age (P < 0.05). There was no significant (P > 0.05) breed effect on PCV; but GalIa kids were significantly heavier (P < 0.001) at alI measurement times between birth and 14 months of age. Heritability estimates for LWT, pcv and FEC at lhe different sampling times were characterized by high standard errors. Heritability estimates for records taken at 4.5 and 8 months of age from a repeated measures analysis were 0.18 (s.e. 0.08) for pcv and 0.13 (s.e.0.07) for logarithm-transformed FEC. The phenotypic and genetic correlation estimates between pcv and LFEC were moderately to highly nega tive and averaged -0.36 and -0.53, respectively. The results are discussed in relation to the limited evidence for resistance to GI nematode infections in goats and compared with lhe much stronger evidence for resistance in sheep.
650 $aAfrica
650 $aCaprino
650 $aGenética Animal
650 $aHaemonchus Contortus
650 $aResistência Genética
653 $aMelhoramento genético
653 $aNematóide gastrintestinal
653 $aRegião tropical
700 1 $aAUDHO, J. O.
700 1 $aADUDA, E. O.
700 1 $aTHORPE, W.
773 $tAnimal Science$gv. 73, pt 1, p. 61-70, 2001.
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Embrapa Caprinos e Ovinos (CNPC) |
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| 1. |  | TAVARES, J. V.; OLIVEIRA, R. S.; MENCUCCINI, M.; SIGNORI-MÜLLER , C.; PEREIRA, L.; DINIZ, F. C.; GILPIN, M.; ZEVALLOS, M. J. M.; SALAS YUPAYCCANA, C. A.; ACOSTA, M.; PÉREZ MULLISACA, F. M.; BARROS, F. de V.; BITTENCOURT, P.; JANCOSKI, H.; SCALON, M. C.; MARIMON, B. S.; MENOR, I. O.; MARIMON JUNIOR, B. H.; FANCOURT, M.; CHAMBERS-OSTLER, A.; ESQUIVEL-MUELBERT, A.; ROWLAND, L.; MEIR, P.; COSTA, A. C. L. da; NINA, A.; SANCHEZ, J. M. B.; TINTAYA, J. S.; CHINO, R. S. C.; BACA, J.; FERNANDES, L.; CUMAPA, E. R. M.; SANTOS, J. A. R.; TEIXEIRA, R.; TELLO, L.; UGARTECHE, M. T. M.; CUELLAR, G. A.; MARTINEZ, F.; ARAUJO-MURAKAMI, A.; ALMEIDA, E.; CRUZ, W. J. A. da; PASQUEL, J. del A.; ARAGÃO, L.; BAKER, T. R.; CAMARGO, P. B. de; BRIENEN, R.; CASTRO, W.; RIBEIRO, S. C.; SOUZA, F. C. de; COSIO, E. G.; CARDOZO, N. D.; SILVA, R. da C.; DISNEY, M.; ESPEJO, J. S.; FELDPAUSCH, T. R.; FERREIRA, L.; GIACOMIN, L.; HIGUCHI, N.; HIROTA, M.; HONORIO, E.; HUASCO, W. H.; LEWIS, S.; FLORES LLAMPAZO, G.; MALHI, Y.; MONTEAGUDO MENDOZA, A.; MORANDI, P.; MOSCOSO, V. C.; MUSCARELLA, R.; PENHA, D.; ROCHA, M. C.; RODRIGUES, G.; RUSCHEL, A. R.; SALINAS, N.; SCHLICKMANN, M.; SILVEIRA, M.; TALBOT, J.; VÁSQUEZ, R.; VEDOVATO, L.; VIEIRA, S. A.; PHILLIPS, O. L.; GLOOR, E.; GALBRAITH, D. R. Basin-wide variation in tree hydraulic safety margins predicts the carbon balance of Amazon forests. Nature, v. 617, p. 111-117, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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