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<p>Mycotoxins are widely present in commercial pet food and pose significant risks to pet health. This study evaluated the contamination status of 18 mycotoxins in 126 commercially available feline and canine foods collected from online and offline markets in China between 2021 and 2023, using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Eight mycotoxins were detected, with fumonisin B1 (FB1) showing the highest occurrence (97.26% in canine food and 94.34% in feline food), at mean concentrations ranging from 886.1 to 903.88&#xa0;µg/kg, followed by zearalenone (ZEN) (95.89% in canine food and 90.57% in feline food; mean concentrations 410.2 and 459.02&#xa0;µg/kg). Co-occurrence analysis showed that 95.89% of canine and 92.46% of feline foods contained two or more mycotoxins, and detection of six mycotoxins within a single product was most common (42.42% in canine food and 35.85% in feline food). Regression analysis indicated that lower retail prices and the inclusion of corn were associated with higher ZEN exceeding regulatory limit rates, whereas higher crude fiber content was inversely correlated with ZEN contamination. These findings demonstrate the widespread presence of mycotoxins in Chinese pet foods and underscore the need for strengthened monitoring and raw material quality control to safeguard companion animal health.</p>

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Occurrence of mycotoxins contamination in commercial feline and canine foods from China

  • 期刊论文

  • 发表日期：

    2026年2月28日

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  • Yaping Guo,
  • Wei An,
  • Xiumin Wang,
  • Bing Han,
  • Hui Tao,
  • Bianfang Liu,
  • Zhenlong Wang,
  • Jinquan Wang

摘要

Mycotoxins are widely present in commercial pet food and pose significant risks to pet health. This study evaluated the contamination status of 18 mycotoxins in 126 commercially available feline and canine foods collected from online and offline markets in China between 2021 and 2023, using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Eight mycotoxins were detected, with fumonisin B1 (FB1) showing the highest occurrence (97.26% in canine food and 94.34% in feline food), at mean concentrations ranging from 886.1 to 903.88 µg/kg, followed by zearalenone (ZEN) (95.89% in canine food and 90.57% in feline food; mean concentrations 410.2 and 459.02 µg/kg). Co-occurrence analysis showed that 95.89% of canine and 92.46% of feline foods contained two or more mycotoxins, and detection of six mycotoxins within a single product was most common (42.42% in canine food and 35.85% in feline food). Regression analysis indicated that lower retail prices and the inclusion of corn were associated with higher ZEN exceeding regulatory limit rates, whereas higher crude fiber content was inversely correlated with ZEN contamination. These findings demonstrate the widespread presence of mycotoxins in Chinese pet foods and underscore the need for strengthened monitoring and raw material quality control to safeguard companion animal health.