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Evaluating implementation strategies for improved food safety in Vietnam

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Title Evaluating implementation strategies for improved food safety in Vietnam
 
Creator Hai Hoang Tuan Ngo
 
Subject food safety
 
Description Pork is the most popular and consumed meat in Vietnam, and the preference among consumers
for fresh and “warm” pork makes the traditional pork value chain dominate the pork industry.
This thesis assessed microbial contamination in pork, then evaluated the technical and economic
aspects of light-touch interventions in improving the safety of pork in the small-scale value
chain. A total of 671 specimens of retailed pork were collected from traditional retail, modern
retail, and food services to assess total bacterial count (TBC) and Salmonella prevalence. The
results showed that 58% of samples were contaminated with Salmonella, and 93% of samples
did not qualify for the Vietnamese standard of TBC in meat. The contamination of pork was not
significantly different between the traditional and modern retail while hygiene practices were
associated with lower microbial contamination. Subsequently, light-touch intervention packages
were co-designed and implemented at ten small-scale slaughterhouses and 29 traditional pork
shops. The packages consisted of providing tools and delivering training for participants. Results
showed a reduction of TBC in pig carcasses (from 4.46 to 4.24 log10 colony forming units (CFU)/
cm2, p = 0.09) and Salmonella prevalence in retailed pork (from 52% to 24% detection, p =
0.08). The upgraded pork shop was then introduced to local consumers in a Becker-DeGroot-
Marschak auction game. Consumers showed a strong belief in the intervention at retail stage
and were willing to pay 13,000 Vietnam Dong (VND), or 20% higher price, (p < 0.01) for each
kilogram intervened pork compared to a typical one. This premium payment would cover the
investment to upgrade most shops (varied from 421 to 4,146 VND/kg pork). Besides, consuming
intervened pork was predicted to reduce annual risk of salmonellosis from 12% to 6%. This
reduction could lead to a net benefit of 27,696,241 VND (95% CI: -546,816 – 117,515,493) for
consumers and 207,788 VND (95% CI: -38,941 – 658,884) for pork sellers. This thesis provides
a sustainable solution to improve pork safety across the small-scale value chain in Vietnam. An
appropriate strategy to motivate these actors to implement the light-touch intervention could
significantly improve the well-being of community.
 
Date 2023-04-28
2023-06-05T18:22:45Z
2023-06-05T18:22:45Z
 
Type Thesis
 
Identifier Hai Hoang Tuan Ngo. 2023. Evaluating implementation strategies for improved food safety in Vietnam. PhD thesis. Uppsala, Sweden: Uppsala University.
978-91-513-1815-8
1651-6206
https://hdl.handle.net/10568/130627
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-500713
 
Language en
 
Rights Copyrighted; all rights reserved
Open Access
 
Format application/pdf
 
Publisher Uppsala University