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

Lee, Hu Suk and Lindahl, Johanna and Nguyen-Viet, Hung 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. 13:363, 1-7
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Official URL: http://dx.doi.org/10.1186/s12917-017-1297-8

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, Hu Suk and Lindahl, Johanna and Nguyen-Viet, Hung 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/Journal:BMC Veterinary Research (1746-6148)
Year of publishing :2017
Volume:13
Number:363
Page range:1-7
Number of Pages:7
Publisher:BioMed Central
ISSN:1746-6148
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:L Animal production > L70 Veterinary science and hygiene - General aspects
Q Food science > Q03 Food contamination and toxicology
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 403 Veterinary Science > Clinical Science
Agrovoc terms:food safety, aflatoxins, Swine, Vietnam
Keywords:Vietnam, ELISA, Pig, Urine, Aflatoxins, Survey, Perception/knowledge
URN:NBN:urn:nbn:se:slu:epsilon-e-4621
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-4621
Additional ID:
Type of IDID
Web of Science (WoS)000416800100005
ID Code:15193
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Dept. of Clinical Sciences
Deposited By: SLUpub Connector
Deposited On:15 Jan 2018 07:17
Metadata Last Modified:15 Jan 2018 07:17

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