Detection of antibiotics in chicken eggs obtained from supermarkets in Ho Chi Minh City,Vietnam |
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Authors: | Takahiro Yamaguchi Masahiro Okihashi Yoshimasa Konishi Kotaro Uchida Mai Hoang Ngoc Do |
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Institution: | 1. Osaka Prefectural Institute of Public Health, Osaka, Japan;2. Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan;3. Global Collaboration Center, Osaka University, Osaka, Japan;4. Institute of Public Health, Ho Chi Minh City, Vietnam |
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Abstract: | The residual levels of antibiotics in Vietnamese eggs were monitored from 2014 to 2015. A total of 111 egg packages, distributed by 11 different companies, were collected from supermarkets in Ho Chi Minh City and the levels of 28 antibiotics were analyzed using liquid chromatography-tandem mass spectrometry (LC-MS/MS) screening method. Sixteen samples tested positive for antibiotics; a total of eight compounds (enrofloxacin, ciprofloxacin, norfloxacin, sulfadimethoxine, sulfamethazine, sulfamonomethoxine, tilmicosin and trimethoprim) were detected. Enrofloxacin was detected in eight samples, with two samples exhibiting concentrations exceeding 1,000 µg kg?1. Tilmicosin was detected in three samples at a range of 49–568 µg kg?1. We observed that two of the 11 companies frequently sold antibiotic-contaminated eggs (detection rates of 56 and 60%), suggesting that a number of companies do not regulate the use of antibiotics in egg-laying hens. Our findings indicate that livestock farmers require instruction regarding antibiotic use and that continual antibiotic monitoring is essential in Vietnam. |
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Keywords: | Residual antibiotics egg Vietnam liquid chromatography-tandem mass spectrometry |
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