Investigations into <i>Salmonella</i> Contamination in Feed Mills Producing Rations for the Broiler Industry in Great Britain
Feed-associated <i>Salmonella</i> serovars continue to be reported in poultry flocks. A study was conducted to investigate <i>Salmonella</i> contamination in major commercial feed mills that produce rations for broiler chickens within Great Britain. Dust and large moist gauze...
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MDPI AG
2022-06-01
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Online Access: | https://www.mdpi.com/2306-7381/9/7/307 |
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author | Rebecca Gosling Claire Oastler Christopher Nichols George Jackson Andrew D. Wales Robert H. Davies |
author_facet | Rebecca Gosling Claire Oastler Christopher Nichols George Jackson Andrew D. Wales Robert H. Davies |
author_sort | Rebecca Gosling |
collection | DOAJ |
description | Feed-associated <i>Salmonella</i> serovars continue to be reported in poultry flocks. A study was conducted to investigate <i>Salmonella</i> contamination in major commercial feed mills that produce rations for broiler chickens within Great Britain. Dust and large moist gauze swab samples (12,791) were collected from 22 feed mills on 31 visits. <i>Salmonella</i> was isolated from 20 mills, with 15 mills (75%) having fewer than 5% <i>Salmonella</i>-positive samples. Fifty-one <i>Salmonella</i> serovars were isolated, with a large proportion of isolates being <i>Salmonella</i> (<i>S</i>.) Kedougou (29.4%) or <i>S.</i> 13,23:i:- (21.4%). European Union-regulated <i>Salmonella</i> serovars (Enteritidis, Infantis, Typhimurium and its monophasic variants) were isolated from 12 mills, mostly from non-processing areas, accounting for 40 isolates (4.4% of all <i>Salmonella</i>-positive samples). Fifteen <i>Salmonella</i> serovars were only isolated once. In terms of individual sampling locations within the mill, the waste handling locations were significantly more likely to be <i>Salmonella</i>-positive than some other mill locations. When sampling locations were grouped, samples collected from finished product areas were significantly less likely to be <i>Salmonella</i>-positive for <i>Salmonella</i> than some other mill areas. In conclusion, this study found that most mills producing broiler rations showed low-level <i>Salmonella</i> contamination. |
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spelling | doaj.art-f794ce27cd3040cc83e8ecc83a9b60d52023-12-03T12:23:36ZengMDPI AGVeterinary Sciences2306-73812022-06-019730710.3390/vetsci9070307Investigations into <i>Salmonella</i> Contamination in Feed Mills Producing Rations for the Broiler Industry in Great BritainRebecca Gosling0Claire Oastler1Christopher Nichols2George Jackson3Andrew D. Wales4Robert H. Davies5Department of Bacteriology, Animal and Plant Health Agency (APHA–Weybridge), Woodham Lane, New Haw, Addlestone KT15 3NB, UKDepartment of Bacteriology, Animal and Plant Health Agency (APHA–Weybridge), Woodham Lane, New Haw, Addlestone KT15 3NB, UKDepartment of Bacteriology, Animal and Plant Health Agency (APHA–Weybridge), Woodham Lane, New Haw, Addlestone KT15 3NB, UKDepartment of Bacteriology, Animal and Plant Health Agency (APHA–Weybridge), Woodham Lane, New Haw, Addlestone KT15 3NB, UKDepartment of Pathology and Infectious Diseases, School of Veterinary Medicine, University of Surrey, Guildford GU2 7AL, UKDepartment of Bacteriology, Animal and Plant Health Agency (APHA–Weybridge), Woodham Lane, New Haw, Addlestone KT15 3NB, UKFeed-associated <i>Salmonella</i> serovars continue to be reported in poultry flocks. A study was conducted to investigate <i>Salmonella</i> contamination in major commercial feed mills that produce rations for broiler chickens within Great Britain. Dust and large moist gauze swab samples (12,791) were collected from 22 feed mills on 31 visits. <i>Salmonella</i> was isolated from 20 mills, with 15 mills (75%) having fewer than 5% <i>Salmonella</i>-positive samples. Fifty-one <i>Salmonella</i> serovars were isolated, with a large proportion of isolates being <i>Salmonella</i> (<i>S</i>.) Kedougou (29.4%) or <i>S.</i> 13,23:i:- (21.4%). European Union-regulated <i>Salmonella</i> serovars (Enteritidis, Infantis, Typhimurium and its monophasic variants) were isolated from 12 mills, mostly from non-processing areas, accounting for 40 isolates (4.4% of all <i>Salmonella</i>-positive samples). Fifteen <i>Salmonella</i> serovars were only isolated once. In terms of individual sampling locations within the mill, the waste handling locations were significantly more likely to be <i>Salmonella</i>-positive than some other mill locations. When sampling locations were grouped, samples collected from finished product areas were significantly less likely to be <i>Salmonella</i>-positive for <i>Salmonella</i> than some other mill areas. In conclusion, this study found that most mills producing broiler rations showed low-level <i>Salmonella</i> contamination.https://www.mdpi.com/2306-7381/9/7/307poultrybroilerfeed<i>Salmonella</i>feed mill |
spellingShingle | Rebecca Gosling Claire Oastler Christopher Nichols George Jackson Andrew D. Wales Robert H. Davies Investigations into <i>Salmonella</i> Contamination in Feed Mills Producing Rations for the Broiler Industry in Great Britain Veterinary Sciences poultry broiler feed <i>Salmonella</i> feed mill |
title | Investigations into <i>Salmonella</i> Contamination in Feed Mills Producing Rations for the Broiler Industry in Great Britain |
title_full | Investigations into <i>Salmonella</i> Contamination in Feed Mills Producing Rations for the Broiler Industry in Great Britain |
title_fullStr | Investigations into <i>Salmonella</i> Contamination in Feed Mills Producing Rations for the Broiler Industry in Great Britain |
title_full_unstemmed | Investigations into <i>Salmonella</i> Contamination in Feed Mills Producing Rations for the Broiler Industry in Great Britain |
title_short | Investigations into <i>Salmonella</i> Contamination in Feed Mills Producing Rations for the Broiler Industry in Great Britain |
title_sort | investigations into i salmonella i contamination in feed mills producing rations for the broiler industry in great britain |
topic | poultry broiler feed <i>Salmonella</i> feed mill |
url | https://www.mdpi.com/2306-7381/9/7/307 |
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