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An investigation into aflatoxin M-1 in slaughtered fattening pigs and awareness of aflatoxins in Vietnam

Lee, H. S. and Lindahl, Johanna and Nguyen-Viet, H. and Khong, Nguyen Viet and Nghia, Vuong Bui and Xuan, Huyen Nguyen and Grace, Delia (2017). An investigation into aflatoxin M-1 in slaughtered fattening pigs and awareness of aflatoxins in Vietnam. BMC Veterinary Research. 13
[Research article]

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Abstract

Background: Aflatoxin M-1 (AFM(1)) is a hydroxylated metabolite formed after aflatoxin B-1 (AFB(1)) is consumed by humans and animals; it can be detected in urine, milk and blood. It is well recognized that AFB(1) is toxic to humans and other animals. The International Agency for Research on Cancer (IARC) classifies aflatoxins as group 1 carcinogens and AFM(1) as group 2B carcinogen. The main objective of this study was to evaluate the exposure of pigs to aflatoxins as well as to assess the public awareness of aflatoxins among people in five provinces in Vietnam.Results: A total of 1920 urine samples were collected from slaughterhouses located in five provinces. Overall, the positive rate of AFM(1) was 53.90% (95% confidence interval 51.64-56.15) using a cut-off of 0.15 mu g/kg (range: limit of detection to 13.66 mu g/kg, median: 0.2 mu g/kg and mean: 0.63 mu g/kg). A total of 252 people from the general population were interviewed from 5 provinces, and overall 67.86% reported being aware of aflatoxins. We also found that men and more highly educated had significantly increased awareness of aflatoxins compared to the females and primary/ secondary school group. The respective odds ratios (ORs) were as follows: "male" group (OR: 2.64), "high school educated" group (OR: 3.40) and "college/university or more educated" group (OR: 10.20).Conclusions: We can conclude that pigs in Vietnam are exposed to aflatoxins to varying degrees, and there may be a risk that pork products could contain AFM(1). Further investigation is needed into the possible health impacts as well as to aid in establishing regulations for animal feed to reduce the health impacts in humans and animals.

Authors/Creators:Lee, H. S. and Lindahl, Johanna and Nguyen-Viet, H. and Khong, Nguyen Viet and Nghia, Vuong Bui and Xuan, Huyen Nguyen and Grace, Delia
Title:An investigation into aflatoxin M-1 in slaughtered fattening pigs and awareness of aflatoxins in Vietnam
Series Name/Journal:BMC Veterinary Research
Year of publishing :2017
Volume:13
ISSN:1746-6148
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 403 Veterinary Science > Clinical Science
Keywords:Vietnam, ELISA, Pig, Urine, Aflatoxins, Survey, Perception/knowledge
URN:NBN:urn:nbn:se:slu:epsilon-p-92684
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-92684
Additional ID:
Type of IDID
DOI10.1186/s12917-017-1297-8
Web of Science (WoS)000416800100005
ID Code:15193
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Deposited By: SLUpub Connector
Deposited On:15 Jan 2018 07:17
Metadata Last Modified:09 Sep 2020 14:17

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