INRB, IP - Laboratório Nacional de Investigação Veterinária, Estrada de Benfica 701, 1549-011 Lisboa, Portugal.
Mycotoxin Res. 2012 May;28(2):107-10. doi: 10.1007/s12550-011-0118-3. Epub 2011 Dec 16.
Results of a 2-year (2009-2010) survey on the occurrence of ochratoxin A (OTA) in swine feed and in feed for laying hens in Portugal are reported. A total of 664 samples (478 swine feed, 186 feed for laying hens) were analyzed by a HPLC method using fluorescence detection with 2 μg kg(-1) as detection limit. In swine feed, 31 samples (6.49%) were positive for OTA. In feed for laying hens, 12 samples (6.45%) were OTA-positive. The average levels of contamination were low, with median values of positive samples at 3-4 μg kg(-1) in both years and both commodities, although a few samples contained exceptionally high levels (maximum 130 μg kg(-1)). Only the maximum level sample (swine feed) contained OTA at a concentration exceeding the European Commission guidance value. The remaining OTA concentrations found in feed samples were much lower than the guidance values.
报告了 2009-2010 年期间在葡萄牙进行的一项关于赭曲霉毒素 A（OTA）在猪饲料和蛋鸡饲料中出现情况的 2 年调查结果。采用 HPLC 荧光检测法，以 2μg/kg 为检测限，对 664 份样品（478 份猪饲料，186 份蛋鸡饲料）进行了分析。在猪饲料中，有 31 份（6.49%）样品呈 OTA 阳性。在蛋鸡饲料中，有 12 份（6.45%）样品呈 OTA 阳性。污染水平较低，阳性样品的中位数均为 3-4μg/kg，在这两年和两种商品中均是如此，尽管有少数样品含有异常高的水平（最高达 130μg/kg）。只有一个最高水平的样品（猪饲料）的 OTA 浓度超过了欧盟委员会的指导值。在饲料样品中发现的其余 OTA 浓度远低于指导值。
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