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Objective: The purpose of this research was to study the prevalence of antimicrobial residue in pork from different pig farms in the Northeast of Thailand.
Materials and Methods: A total of 469 pork samples were randomly collected from slaughterhouses in 7 provinces of the third and fourth livestock areas during 2017 and 2018. Antibiotic residues in pork were analyzed using the CM® test and group of antibiotic residues was confirmed using the European Six Plate Test method.
Results: Antibiotic residues were found in 16.6% of the total examined pork. The percentage of samples that tested positive differed significantly from area to area. Farm type had no effect on antibiotic residues in pork. Most of the antibiotic residues in pork found in this study were in the group of tetracyclines and penicillins.
Conclusion: Results of this study concluded that different farm sizes or rearing management were not the main factors affecting antimicrobial residues in pork in the Northeastern of Thailand. Antimicrobial residues in pork likely result from individual drug treatment. Therefore, strict management of individual sick pigs in the pre-slaughter period should be an important approach to reducing antimicrobial residues in pork.
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