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J Appl Microbiol


Title:Microbial production of volatile sulphur compounds in the large intestine of pigs fed two different diets
Author(s):Poulsen HV; Jensen BB; Finster K; Spence C; Whitehead TR; Cotta MA; Canibe N;
Address:"Section for Immunology and Microbiology, Department of Animal Science, Faculty of Science and Technology, Aarhus University,Blichers Alle , Tjele, Denmark. henrik.poulsen@agrsci.dk"
Journal Title:J Appl Microbiol
Year:2012
Volume:20120508
Issue:1
Page Number:143 - 154
DOI: 10.1111/j.1365-2672.2012.05309.x
ISSN/ISBN:1365-2672 (Electronic) 1364-5072 (Linking)
Abstract:"AIMS: To investigate the production of volatile sulphur compounds (VSC) in the segments of the large intestine of pigs and to assess the impact of diet on this production. METHODS AND RESULTS: Pigs were fed two diets based on either wheat and barley (STD) or wheat and dried distillers grains with solubles (DDGS). Net production of VSC and potential sulphate reduction rate (SRR) (sulphate saturated) along the large intestine were determined by means of in vitro incubations. The net production rate of hydrogen sulphide and potential SRR increased from caecum towards distal colon and were significantly higher in the STD group. Conversely, the net methanethiol production rate was significantly higher in the DDGS group, while no difference was observed for dimethyl sulphide. The number of sulphate-reducing bacteria and total bacteria were determined by quantitative PCR and showed a significant increase along the large intestine, whereas no diet-related differences were observed. CONCLUSION: VSC net production varies widely throughout the large intestine of pigs and the microbial processes involved in this production can be affected by diet. SIGNIFICANCE AND IMPACT OF THE STUDY: This first report on intestinal production of all VSC shows both spatial and dietary effects, which are relevant to both bowel disease- and odour mitigation research"
Keywords:"Animal Feed Animals Cecum/metabolism/microbiology Colon/metabolism/microbiology *Diet Hordeum Intestine, Large/metabolism/*microbiology Methane/biosynthesis Sulfates/metabolism Sulfur Compounds/*metabolism Sulfur-Reducing Bacteria/growth & development/*me;"
Notes:"MedlinePoulsen, H V Jensen, B B Finster, K Spence, C Whitehead, T R Cotta, M A Canibe, N eng Research Support, Non-U.S. Gov't England 2012/04/18 J Appl Microbiol. 2012 Jul; 113(1):143-54. doi: 10.1111/j.1365-2672.2012.05309.x. Epub 2012 May 8"

 
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