Surveillance Data Highlights Feed Form, Biosecurity, and Disease Control as Significant Factors Associated with Salmonella Infection on Farrow-to-Finish Pig Farms
Among the zoonotic pathogens affecting pigs, Salmonella stands out due to the high number of human cases linked to pork consumption. In the last two decades many countries have put considerable effort into the control of the infection by surveillance and control strategies on farm. Despite this effo...
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Frontiers Media S.A.
2018-02-01
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Series: | Frontiers in Microbiology |
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Online Access: | http://journal.frontiersin.org/article/10.3389/fmicb.2018.00187/full |
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author | Hector Argüello Edgar G. Manzanilla Helen Lynch Helen Lynch Kavita Walia Kavita Walia Finola C. Leonard John Egan Geraldine Duffy Gillian E. Gardiner Peadar G. Lawlor |
author_facet | Hector Argüello Edgar G. Manzanilla Helen Lynch Helen Lynch Kavita Walia Kavita Walia Finola C. Leonard John Egan Geraldine Duffy Gillian E. Gardiner Peadar G. Lawlor |
author_sort | Hector Argüello |
collection | DOAJ |
description | Among the zoonotic pathogens affecting pigs, Salmonella stands out due to the high number of human cases linked to pork consumption. In the last two decades many countries have put considerable effort into the control of the infection by surveillance and control strategies on farm. Despite this effort, many herds still have a high Salmonella prevalence and they require guidance to address this problem. The present study, using the serological surveillance data of finishing pigs from the Irish National pig Salmonella Control Programme, aimed to highlight factors associated with increased risk or that might mitigate Salmonella occurrence on farm. A questionnaire with 33 questions regarding herd characteristics, management, feeding, biosecurity, and health was completed for 61 individual herds. After the multivariate analysis by linear regression, nine variables were retained in the final model and linked to herd seroprevalence. Home produced-feed linked to the use of meal showed an eight points reduction in Salmonella prevalence compared to purchased feed (p = 0.042). Different biosecurity measures were associated to lower seroprevalence. Changing of footwear from outside to inside the farm decreased seroprevalence nearly 20 units (p = 0.014) and policies not permitting access to the farmyard to feed trucks (p = 0.048) or avoiding the presence of cats on the farm (p = 0.05) were estimated in 10 units less of seroprevalence. In contrast, the lack of perimeter fence increased the chance to have higher seroprevalence in five units (p = 0.05). Finally, intestinal diseases such as swine dysentery (p = 0.044) and E. coli diarrhea (p = 0.1) were estimated to increase Salmonella prevalence in ~20 and 10 units, respectively, demonstrating the importance of controlling other enteric pathogens in an on-farm Salmonella control programme. These results show the usefulness of surveillance data to improve on-farm control and confirm that Salmonella infection in pigs is multi-factorial and the approach to its control should be multifaceted. |
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issn | 1664-302X |
language | English |
last_indexed | 2024-04-13T00:14:18Z |
publishDate | 2018-02-01 |
publisher | Frontiers Media S.A. |
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spelling | doaj.art-0eb87f79b2944f129a309156297081d92022-12-22T03:10:58ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2018-02-01910.3389/fmicb.2018.00187329887Surveillance Data Highlights Feed Form, Biosecurity, and Disease Control as Significant Factors Associated with Salmonella Infection on Farrow-to-Finish Pig FarmsHector Argüello0Edgar G. Manzanilla1Helen Lynch2Helen Lynch3Kavita Walia4Kavita Walia5Finola C. Leonard6John Egan7Geraldine Duffy8Gillian E. Gardiner9Peadar G. Lawlor10Teagasc, Food Research Centre, Ashtown, IrelandPig Development Department, Animal and Grassland Research and Innovation Centre, Teagasc, Fermoy, IrelandTeagasc, Food Research Centre, Ashtown, IrelandSchool of Veterinary Medicine, University College Dublin, Dublin, IrelandTeagasc, Food Research Centre, Ashtown, IrelandCentral Veterinary Research Laboratory, Department of Agriculture, Food and the Marine, Backweston, IrelandSchool of Veterinary Medicine, University College Dublin, Dublin, IrelandCentral Veterinary Research Laboratory, Department of Agriculture, Food and the Marine, Backweston, IrelandTeagasc, Food Research Centre, Ashtown, IrelandDepartment of Science, Waterford Institute of Technology, Waterford, IrelandPig Development Department, Animal and Grassland Research and Innovation Centre, Teagasc, Fermoy, IrelandAmong the zoonotic pathogens affecting pigs, Salmonella stands out due to the high number of human cases linked to pork consumption. In the last two decades many countries have put considerable effort into the control of the infection by surveillance and control strategies on farm. Despite this effort, many herds still have a high Salmonella prevalence and they require guidance to address this problem. The present study, using the serological surveillance data of finishing pigs from the Irish National pig Salmonella Control Programme, aimed to highlight factors associated with increased risk or that might mitigate Salmonella occurrence on farm. A questionnaire with 33 questions regarding herd characteristics, management, feeding, biosecurity, and health was completed for 61 individual herds. After the multivariate analysis by linear regression, nine variables were retained in the final model and linked to herd seroprevalence. Home produced-feed linked to the use of meal showed an eight points reduction in Salmonella prevalence compared to purchased feed (p = 0.042). Different biosecurity measures were associated to lower seroprevalence. Changing of footwear from outside to inside the farm decreased seroprevalence nearly 20 units (p = 0.014) and policies not permitting access to the farmyard to feed trucks (p = 0.048) or avoiding the presence of cats on the farm (p = 0.05) were estimated in 10 units less of seroprevalence. In contrast, the lack of perimeter fence increased the chance to have higher seroprevalence in five units (p = 0.05). Finally, intestinal diseases such as swine dysentery (p = 0.044) and E. coli diarrhea (p = 0.1) were estimated to increase Salmonella prevalence in ~20 and 10 units, respectively, demonstrating the importance of controlling other enteric pathogens in an on-farm Salmonella control programme. These results show the usefulness of surveillance data to improve on-farm control and confirm that Salmonella infection in pigs is multi-factorial and the approach to its control should be multifaceted.http://journal.frontiersin.org/article/10.3389/fmicb.2018.00187/fullcontrolfoodborne-pathogenrisk factorsfeedswine dysenterybiosecurity |
spellingShingle | Hector Argüello Edgar G. Manzanilla Helen Lynch Helen Lynch Kavita Walia Kavita Walia Finola C. Leonard John Egan Geraldine Duffy Gillian E. Gardiner Peadar G. Lawlor Surveillance Data Highlights Feed Form, Biosecurity, and Disease Control as Significant Factors Associated with Salmonella Infection on Farrow-to-Finish Pig Farms Frontiers in Microbiology control foodborne-pathogen risk factors feed swine dysentery biosecurity |
title | Surveillance Data Highlights Feed Form, Biosecurity, and Disease Control as Significant Factors Associated with Salmonella Infection on Farrow-to-Finish Pig Farms |
title_full | Surveillance Data Highlights Feed Form, Biosecurity, and Disease Control as Significant Factors Associated with Salmonella Infection on Farrow-to-Finish Pig Farms |
title_fullStr | Surveillance Data Highlights Feed Form, Biosecurity, and Disease Control as Significant Factors Associated with Salmonella Infection on Farrow-to-Finish Pig Farms |
title_full_unstemmed | Surveillance Data Highlights Feed Form, Biosecurity, and Disease Control as Significant Factors Associated with Salmonella Infection on Farrow-to-Finish Pig Farms |
title_short | Surveillance Data Highlights Feed Form, Biosecurity, and Disease Control as Significant Factors Associated with Salmonella Infection on Farrow-to-Finish Pig Farms |
title_sort | surveillance data highlights feed form biosecurity and disease control as significant factors associated with salmonella infection on farrow to finish pig farms |
topic | control foodborne-pathogen risk factors feed swine dysentery biosecurity |
url | http://journal.frontiersin.org/article/10.3389/fmicb.2018.00187/full |
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