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dc.contributor.author M. R. F. en_US
dc.contributor.author V. J. en_US
dc.contributor.author H. J. en_US
dc.contributor.author A. en_US
dc.contributor.author F. en_US
dc.contributor.author N. D. en_US
dc.contributor.author J-P. en_US
dc.date.accessioned 2011-06-06T11:31:26Z
dc.date.available 2011-06-06T11:31:26Z
dc.date.issued 2010-12 en_US
dc.identifier http://dx.doi.org/10.1016/j.meatsci.2010.08.002 en_US
dc.identifier.citation Lee , M R F , Theobald , V J , Ougham , H J , Veberg Dahl , A , Lundby , F , Scollan , N D & Wold , J-P 2010 , ' Natural faecal fluorophores and the potential of chlorophyll based markers to optimise fluorescence as a real-time solution for the detection of faecal contamination on carcasses ' Meat Science , vol 86 , no. 4 , pp. 966-975 . , 10.1016/j.meatsci.2010.08.002 en_US
dc.identifier.other PURE: 163946 en_US
dc.identifier.other dspace: 2160/6930 en_US
dc.identifier.uri http://hdl.handle.net/2160/6930
dc.description.abstract More accurate and sensitive visualisation of faecal contamination in the abattoir would significantly reduce the risk posed by harbouring pathogenic micro-organisms. We carried out a preliminary investigation of the range of fluorophores found naturally in faeces from typical ruminant diets. Sixteen ewes were offered either: i) fresh forage (FF), ii) grass silage (GS), iii) grass hay (GH) or iv) concentrate and barley straw (CB). Animals offered FF diets had a greater concentration (P <0.001) of chlorophyll based compounds in their faeces and subsequent fluorescent emission spectra. In a second experiment we investigated a range of fluorescent markers against a basal concentrate and barley straw diet. Ten Cheviot sheep were split into five treatment groups during a duplicate 5 × 5 Latin square design. Four of the groups received a chlorophyll based marker at a rate of 2 g/d: i) Mg–Chlorophyllin (MgC), ii) Fe–Chlorophyllin (FeC), iii) Zn–Chlorophyllin (ZnC) or iv) Spirulina (Chlorophyll a extract from blue green algae, Sp). The last group received no supplement as the control (Con). The appearance of chlorophyllin markers and their derivatives in faeces was similar with mean concentrations of 3.1 and 7.2 μg/g DM, respectively. The most intense fluorescent signal was shown with MgC followed by ZnC, FeC, Sp and Con at 685 nm. The use of markers in pre-slaughter diets would improve the accuracy of faecal detection as a result of greater fluorescence and specific emission wavelengths which do not overlap with natural meat components to help with visualisation. en_US
dc.format.extent 10 en_US
dc.relation.ispartof Meat Science en_US
dc.subject VerifEYE en_US
dc.subject Faecal contamination en_US
dc.subject Fluorescence en_US
dc.subject Chlorophyll en_US
dc.subject HACCP en_US
dc.title Natural faecal fluorophores and the potential of chlorophyll based markers to optimise fluorescence as a real-time solution for the detection of faecal contamination on carcasses en_US
dc.contributor.pbl Institute of Biological, Environmental and Rural Sciences en_US


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