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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
31/01/1996 |
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Data da última atualização: |
26/09/2013 |
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Autoria: |
BERRY, C. I.; DARGIE, J. D. |
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Título: |
The role of host nutrition in the pathogenesis of ovine fascioliasis. |
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Ano de publicação: |
1976 |
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Fonte/Imprenta: |
Veterinary Parasitology, v.2, n.4, p.317-332, 1976. |
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Idioma: |
Inglês |
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Conteúdo: |
The relationship between host nutrition and the development of clinical fascioliasis in sheep was investigated by comparing the course of the disease, firstly in animals given the same number of Fasciola hepatica metacercariae and fed rations containing 6 or 13% crude protein, and secondly in chronically infected sheep transferred from high to low protein diets. In the first experiment, it was found that sheep on the lower protein ration experienced more rapid anaemia, hypoalbuminaemia and weight loss, and died earlier than their better fed counterparts. Since the fluke burdens were comparable in both groups it was concluded that the advantages displayed by the latter reflected their freater capacity to withstand the parasites' pathogenic effects rather than a superior ability to limit infection. This was supported by the results of the second experiment demonstrating a faster development of disease in infected sheep when switched from high to low planes of nutrition. The importance of reduced appetite was also studied by comparing the clinical indices of infected sheeps with those of worm-free animals maintained on the same level of feed in-
take. It was found that loss of appetite contributed substantially, although not entirely, to the weight loss and hypoalbuminaemia, but in itself apparently had little effect on the attendant anaemia. |
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Palavras-Chave: |
Host nutrition; Nutricao do hospedeiro; Ovine; Parasita; Partasite. |
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Thesagro: |
Fascíola Hepática; Ovino. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01935naa a2200217 a 4500
001 1787062
005 2013-09-26
008 1976 bl --- 0-- u #d
100 1 $aBERRY, C. I.
245 $aThe role of host nutrition in the pathogenesis of ovine fascioliasis.
260 $c1976
520 $aThe relationship between host nutrition and the development of clinical fascioliasis in sheep was investigated by comparing the course of the disease, firstly in animals given the same number of Fasciola hepatica metacercariae and fed rations containing 6 or 13% crude protein, and secondly in chronically infected sheep transferred from high to low protein diets. In the first experiment, it was found that sheep on the lower protein ration experienced more rapid anaemia, hypoalbuminaemia and weight loss, and died earlier than their better fed counterparts. Since the fluke burdens were comparable in both groups it was concluded that the advantages displayed by the latter reflected their freater capacity to withstand the parasites' pathogenic effects rather than a superior ability to limit infection. This was supported by the results of the second experiment demonstrating a faster development of disease in infected sheep when switched from high to low planes of nutrition. The importance of reduced appetite was also studied by comparing the clinical indices of infected sheeps with those of worm-free animals maintained on the same level of feed in- take. It was found that loss of appetite contributed substantially, although not entirely, to the weight loss and hypoalbuminaemia, but in itself apparently had little effect on the attendant anaemia.
650 $aFascíola Hepática
650 $aOvino
653 $aHost nutrition
653 $aNutricao do hospedeiro
653 $aOvine
653 $aParasita
653 $aPartasite
700 1 $aDARGIE, J. D.
773 $tVeterinary Parasitology$gv.2, n.4, p.317-332, 1976.
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Registro original: |
Embrapa Pantanal (CPAP) |
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