Risk factors associated with Salmonella spp. prevalence along smallholder pig value chains in Vietnam
The objective of this study was to investigate the prevalence of, and risk factors for, Salmonella contamination along the smallholder pig value chain in northern Vietnam. Repeat cross-sectional (for farm and pork shops) and longitudinal (for slaughterhouses) studies were carried out in Hung Yen and...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Elsevier
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/97693 |
| _version_ | 1855522785208565760 |
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| author | Sinh Dang-Xuan Hung Nguyen-Viet Phuc Pham Duc Unger, Fred Ngan Tran Thi Grace, Delia Makita, K. |
| author_browse | Grace, Delia Hung Nguyen-Viet Makita, K. Ngan Tran Thi Phuc Pham Duc Sinh Dang-Xuan Unger, Fred |
| author_facet | Sinh Dang-Xuan Hung Nguyen-Viet Phuc Pham Duc Unger, Fred Ngan Tran Thi Grace, Delia Makita, K. |
| author_sort | Sinh Dang-Xuan |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The objective of this study was to investigate the prevalence of, and risk factors for, Salmonella contamination along the smallholder pig value chain in northern Vietnam. Repeat cross-sectional (for farm and pork shops) and longitudinal (for slaughterhouses) studies were carried out in Hung Yen and Nghe An provinces in four sampling periods over a year (April 2014 to February 2015). In total, 72 pig farms and 217 pork shops were visited during the period, and 13 slaughterhouses were visited four times. Information on management and hygiene practices was collected using checklists and questionnaires, and risk factor analyses at the farm, slaughterhouse, and pork shop levels were performed using generalized mixed-effects models with the significant levels 10%. Salmonella prevalence was 36.1%, 38.9%, and 44.7% on pig pen floors, pig carcasses in slaughterhouses, and cut pork in pork shops, respectively. The risk factor for Salmonella prevalence on pig pen floors were having a pig pen next to a household (p = 0.06) and free access to the farm by visitors (p = 0.06). Our slaughterhouse model found a single risk factor for carcass contamination: slaughter area close to lairage without hygienic measures (p = 0.03). For pork shops, presence of flies or insects on pork at shop (p = 0.02) and use of a cloth at pork shop (p = 0.02) were risk factors. The Salmonella prevalence on pig carcass and cut pork was significantly lower in winter compared to that in other seasons. Our study results highlighted the need of improving farm hygiene at farm level, and pork hygiene practices to avoid cross-contamination at the slaughterhouse and market levels, to reduce the risk of salmonellosis through pork consumption in northern Vietnam. |
| format | Journal Article |
| id | CGSpace97693 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace976932024-05-01T08:16:47Z Risk factors associated with Salmonella spp. prevalence along smallholder pig value chains in Vietnam Sinh Dang-Xuan Hung Nguyen-Viet Phuc Pham Duc Unger, Fred Ngan Tran Thi Grace, Delia Makita, K. food safety swine smallholders value systems The objective of this study was to investigate the prevalence of, and risk factors for, Salmonella contamination along the smallholder pig value chain in northern Vietnam. Repeat cross-sectional (for farm and pork shops) and longitudinal (for slaughterhouses) studies were carried out in Hung Yen and Nghe An provinces in four sampling periods over a year (April 2014 to February 2015). In total, 72 pig farms and 217 pork shops were visited during the period, and 13 slaughterhouses were visited four times. Information on management and hygiene practices was collected using checklists and questionnaires, and risk factor analyses at the farm, slaughterhouse, and pork shop levels were performed using generalized mixed-effects models with the significant levels 10%. Salmonella prevalence was 36.1%, 38.9%, and 44.7% on pig pen floors, pig carcasses in slaughterhouses, and cut pork in pork shops, respectively. The risk factor for Salmonella prevalence on pig pen floors were having a pig pen next to a household (p = 0.06) and free access to the farm by visitors (p = 0.06). Our slaughterhouse model found a single risk factor for carcass contamination: slaughter area close to lairage without hygienic measures (p = 0.03). For pork shops, presence of flies or insects on pork at shop (p = 0.02) and use of a cloth at pork shop (p = 0.02) were risk factors. The Salmonella prevalence on pig carcass and cut pork was significantly lower in winter compared to that in other seasons. Our study results highlighted the need of improving farm hygiene at farm level, and pork hygiene practices to avoid cross-contamination at the slaughterhouse and market levels, to reduce the risk of salmonellosis through pork consumption in northern Vietnam. 2019-02 2018-10-19T12:12:29Z 2018-10-19T12:12:29Z Journal Article https://hdl.handle.net/10568/97693 en Limited Access Elsevier Sinh Dang-Xuan, Hung Nguyen-Viet, Phuc Pham-Duc, Unger, F., Ngan Tran-Thi, Grace, D. and Makita, K. 2019. Risk factors associated with Salmonella spp. prevalence along smallholder pig value chains in Vietnam. International Journal of Food Microbiology 290: 105–115. |
| spellingShingle | food safety swine smallholders value systems Sinh Dang-Xuan Hung Nguyen-Viet Phuc Pham Duc Unger, Fred Ngan Tran Thi Grace, Delia Makita, K. Risk factors associated with Salmonella spp. prevalence along smallholder pig value chains in Vietnam |
| title | Risk factors associated with Salmonella spp. prevalence along smallholder pig value chains in Vietnam |
| title_full | Risk factors associated with Salmonella spp. prevalence along smallholder pig value chains in Vietnam |
| title_fullStr | Risk factors associated with Salmonella spp. prevalence along smallholder pig value chains in Vietnam |
| title_full_unstemmed | Risk factors associated with Salmonella spp. prevalence along smallholder pig value chains in Vietnam |
| title_short | Risk factors associated with Salmonella spp. prevalence along smallholder pig value chains in Vietnam |
| title_sort | risk factors associated with salmonella spp prevalence along smallholder pig value chains in vietnam |
| topic | food safety swine smallholders value systems |
| url | https://hdl.handle.net/10568/97693 |
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