| Different feed withdrawal times before slaughter influence caecal fermentation and faecal Salmonella shedding in pigs. | |
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MedLine Citation:
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PMID: 18805721 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effects of different pre-slaughter feed withdrawal times (FWT) on the gastrointestinal tract (GIT) weight and the gut environment of pigs and Salmonella shedding were investigated. Trial 1 evaluated the effects under experimental conditions (feed withdrawal for 18, 30 and 36 h) and trial 2 under commercial conditions (15 and 30 h). In trial 1, the GIT weight tended to decrease (P=0.07), the caecal pH increased (P<0.0001), short-chain fatty acids (SCFA) decreased (P<0.001) and percentage of branched-chain fatty acids (BCFA) increased as FWT increased. Similar results were observed in trial 2, but Enterobacteriaceae numbers and Salmonella positive pigs tended to increase whereas lactobacilli decreased (P<0.0005) as FWT increased. The increase in FWT involved changes in the gut microbial ecosystem that could be associated with the trend of increased caecal Enterobacteriaceae and Salmonella in faeces, and may represent a higher risk of carcass contamination in cases of laceration of viscera. |
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Authors:
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Sandra Mart??n-Pel??ez; Bibiana Peralta; Eva Creus; Antonio Dalmau; Antonio Velarde; Jose F P??rez; Enric Mateu; Susana M Mart??n-Or??e |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-09-20 |
Journal Detail:
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Title: Veterinary journal (London, England : 1997) Volume: 182 ISSN: 1532-2971 ISO Abbreviation: Vet. J. Publication Date: 2009 Dec |
Date Detail:
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Created Date: 2009-11-16 Completed Date: 2010-01-25 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9706281 Medline TA: Vet J Country: England |
Other Details:
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Languages: eng Pagination: 469-73 Citation Subset: IM |
Affiliation:
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Animal Nutrition, Management and Welfare Research Group, Departament de Ci??ncia Animal i dels Aliments, Universitat Aut??noma de Barcelona, 08193 Bellaterra, Spain. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Abattoirs Animals Cecum / microbiology* Colony Count, Microbial Enterobacteriaceae / growth & development* Enterobacteriaceae Infections / microbiology, transmission, veterinary Fatty Acids, Volatile / analysis Feces / microbiology Female Fermentation Food Contamination / prevention & control Food Deprivation / physiology* Humans Hydrogen-Ion Concentration Lactobacillus Organ Size Salmonella / growth & development* Salmonella Infections, Animal / microbiology, transmission Swine / microbiology* Swine Diseases / microbiology, transmission Time Factors |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids, Volatile |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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