| The pathophysiology of ovine fascioliasis: studies on the feed intake and digestibility, body weight and nitrogen balance of sheep given rations of hay or hay plus a pelleted supplement. | |
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MedLine Citation:
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PMID: 515516 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effect of Fasciola hepatica on feed intake and digestibility, body weight and nitrogen balance was measured during the course of experimental infections in sheep given a diet of hay or hay with 'concentrate'. A system of paired feeding was used to allow comparisons between infected and control animals. After the sixth week the appetites and body weights of all infected animals declined but both features were more prominent in the group given the diet of hay alone. By week 14 these animals became moribund and were necropsied whereas those given hay with concentrate which had the same fluke burdens, survived until week 20. At necropsy, the loss of weight in both groups was comparable but greater than in their pair-fed uninfected controls, suggesting that inappetence was not solely responsible. Measurements of feed digestibility revealed few differences between infected and control animals on either diet, but nitrogen retention was markedly lower in the infected animals after the eighth week, and sufficient to account for their inferior weight performance. Reduced nitrogen retention was primarily a reflection of a high urinary excretion in the infected animals, faecal excretion remaining unaltered despite the loss of substantial amounts of nitrogen into the gut as a result of the parasites' haematophagic activities. |
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Authors:
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J D Dargie; C I Berry; J J Parkins |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Research in veterinary science Volume: 26 ISSN: 0034-5288 ISO Abbreviation: Res. Vet. Sci. Publication Date: 1979 May |
Date Detail:
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Created Date: 1980-02-15 Completed Date: 1980-02-15 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0401300 Medline TA: Res Vet Sci Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 289-95 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed Animals Body Weight Dietary Proteins / metabolism Digestion Eating* Energy Metabolism Fascioliasis / metabolism, physiopathology, veterinary* Male Nitrogen / metabolism* Sheep Sheep Diseases / metabolism*, physiopathology |
| Chemical | |
Reg. No./Substance:
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0/Dietary Proteins; 7727-37-9/Nitrogen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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