Aflatoxins Contamination in Animal Feeds and Fresh Milk in Kondoa District, Tanzania

European Journal of Nutrition & Food Safety Pub Date : 2023-12-11 DOI:10.9734/ejnfs/2023/v15i121364

Onesmo A. Robert, F. Nyamete, Mwemezi L. Kabululu, Alex W. Ngungulu

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Abstract

Abstract: The occurrence of aflatoxins in animal feeds and milk is common around the World as most livestock keepers are not aware of aflatoxins. Aims: This study was conducted to assess storage and feeding practices, and assessment of aflatoxin B1 and M1 contamination in animal feeds and fresh milk samples in Kondoa. Study Design: The study involved a survey using semi-structured questionnaires and Laboratory analysis of aflatoxin B1 and aflatoxin M1 in animal feeds and fresh milk samples collected from among smallholder dairy farmers. Methodology: Purposive selection of 120 respondents among smallholder dairy farmers in six wards purposively selected due to having larger number of dairy cattle was conducted. Likewise, 20 samples of animal feeds and 25 composite milk samples from among 120 interviewed farmers were analysed for aflatoxin B1 and M1 using High-Performance Liquid Chromatography (HPLC). Results: The results indicates that, aflatoxin B1 in feeds was 55%, with mean concentration of 8.6 ±5.9 μg/kg ranging from the lowest limit of detection (LOD) to 21.1 μg/kg with 5% samples above the maximum level stipulated by the Tanzania Bureau of Standards (TBS) and European Union (EU) of 20 μg/kg. Likewise, about 44% of the milk samples revealed to contain traces of aflatoxin M1 with a mean amount of 0.07 ±0.08 μg/L, ranging from the limit of detection (

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坦桑尼亚孔多阿地区动物饲料和鲜奶中的黄曲霉毒素污染

摘要：由于大多数牲畜饲养者对黄曲霉毒素缺乏认识，动物饲料和牛奶中出现黄曲霉毒素的现象在世界各地都很普遍。研究目的：本研究旨在评估 Kondoa 地区动物饲料和鲜奶样本中黄曲霉毒素 B1 和 M1 的贮存和饲喂方法，以及黄曲霉毒素 B1 和 M1 的污染情况。研究设计：这项研究采用半结构式问卷进行调查，并通过实验室分析从小农户中收集的动物饲料和鲜奶样本中的黄曲霉毒素 B1 和黄曲霉毒素 M1。调查方法：在因奶牛数量较多而特意选定的 6 个区的小农奶农中，有针对性地选择了 120 名受访者。同样，采用高效液相色谱法（HPLC）对 120 位受访奶农的 20 份动物饲料样本和 25 份复合牛奶样本进行了黄曲霉毒素 B1 和 M1 分析。结果显示结果表明，饲料中黄曲霉毒素 B1 的含量为 55%，平均浓度为 8.6 ±5.9 μg/kg，从最低检测限 (LOD) 到 21.1 μg/kg，其中 5%的样品超过了坦桑尼亚标准局 (TBS) 和欧盟 (EU) 规定的 20 μg/kg 的最高含量。同样，约 44% 的牛奶样本显示含有微量黄曲霉毒素 M1，平均含量为 0.07 ±0.08 微克/升，检测限（

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European Journal of Nutrition & Food Safety

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