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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
14/06/1999 |
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Data da última atualização: |
29/06/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BLACKBURN, H. D.; ROCHA, J. L.; FIGUEIREDO, E. A. P.; BERNE, M. E.; VIEIRA, L. da S.; CAVALCANTE, A. C. R.; SANTA ROSA, J. |
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Afiliação: |
Élsio Antônio Pereira de Figueiredo, CNPC; Maria Elisabeth Berne, CNPC; Luiz da silva Vieira, CNPC; Antônio César Rocha Cavalcante, CNPC; Janete Santa Rosa, CNPC. |
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Título: |
Interaction of parasitism and nutrition in goats: effects on haematological parameters, correlations, and other statistical associations. |
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Ano de publicação: |
1992 |
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Fonte/Imprenta: |
Veterinary Parasitology, v. 44, n. 3/4, p. 183-197, Oct. 1992. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Weaned wether goats(n=144) approximately 6 months of age were placed in a 2X3 factorial experiment to test the effects and interaction of two levels of nutrition (growth+maintenance, NUT1; and twice growth+maintenance, NUT2) and three levels of Haemonchus contortus burden (0,500, and 2000 larvae administered every 2 weeks: WO, W500, and W2000, respectively) on packed cell volume, red blood cell count, total serum protein and leukocytes. The statistical analysis revealed clear and proportionate differences among levels of infection for all variables. A significant(P<0,05) nutritional effect was also found associated with all the variables except leukocyte. The neutrophil/lymphocyte ratio was higher in the NUT1-infected animals, leading to the nutrition by worm load interaction for leukocytes. An analysis for the different leukocyte types revealed significant(P<0,05) differences among infection levels for lymphocytes, while nutrition level was found to be a significant effect for basophil count and immature white cells. Several significant correlations were observed between pairs of variables. Faecal egg output could be predicted from actual worm count in three of the four necropsy periods. The clear differences observed for blood parameters were not present in production traits, suggesting that physiological thresholds may play an important role in framing the metabolic activity of biological organisms. Total serum protein was the best indicator of these effects on production parameters. MenosAbstract: Weaned wether goats(n=144) approximately 6 months of age were placed in a 2X3 factorial experiment to test the effects and interaction of two levels of nutrition (growth+maintenance, NUT1; and twice growth+maintenance, NUT2) and three levels of Haemonchus contortus burden (0,500, and 2000 larvae administered every 2 weeks: WO, W500, and W2000, respectively) on packed cell volume, red blood cell count, total serum protein and leukocytes. The statistical analysis revealed clear and proportionate differences among levels of infection for all variables. A significant(P<0,05) nutritional effect was also found associated with all the variables except leukocyte. The neutrophil/lymphocyte ratio was higher in the NUT1-infected animals, leading to the nutrition by worm load interaction for leukocytes. An analysis for the different leukocyte types revealed significant(P<0,05) differences among infection levels for lymphocytes, while nutrition level was found to be a significant effect for basophil count and immature white cells. Several significant correlations were observed between pairs of variables. Faecal egg output could be predicted from actual worm count in three of the four necropsy periods. The clear differences observed for blood parameters were not present in production traits, suggesting that physiological thresholds may play an important role in framing the metabolic activity of biological organisms. Total serum protein was the best indicator of these effects on ... Mostrar Tudo |
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Palavras-Chave: |
Controle; Efeito nutricional; Nematódeo gastrintestinal; Parêmetros sanguíneos; Random allocation. |
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Thesagro: |
Alimentação; Bode; Caprino; Doença animal; Glóbulo vermelho; Haemonchus Contortus; Helminto gastrintestinal; Nematóide; Nutrição animal; Parasitismo; Parasitose. |
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Thesaurus Nal: |
Animal diseases; Animal feeding; Blood proteins; Brazil; Erythrocytes; Gastrointestinal nematodes; Goat diseases; Goats; Males; Parasitism; Parasitology; Regression analysis; Small ruminants. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
null
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Embrapa Caprinos e Ovinos (CNPC) |
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