Aflatoxin B₁, zearalenone and deoxynivalenol in feed ingredients and complete feed from central China

ABSTRACT

Between 2012 and 2014, 2528 feed ingredient and complete feed samples were collected from central China. Numbers of 2083, 255 and 190 samples were analysed for aflatoxin B1 (AFB1), zearalenone (ZEN) and deoxynivalenol (DON), respectively, by high-performance liquid chromatography in combination with UV or fluorescence detection. The incidence rates of AFB1, ZEN and DON contamination of feed ingredients and complete feeds were 33.9%, 90.2% and 77.4%, respectively. The percentage of positive samples for AFB1 ranged from 13.1% to 97.1%. Cottonseed meal presented the most serious contamination by AFB1. ZEN and DON contamination levels of feeds ranged from 50% to 100%, indicating serious contamination over the studied 3-year period. This study demonstrates that AFB1, ZEN and DON contamination of feeds in central China is serious and differs over the years. Feeds are mostly contaminated with ZEN, followed by DON and AFB1.

KEYWORDS:

• Complete feed
• feed ingredient
• aflatoxin B1 (AFB1)
• zearalenone (ZEN)
• deoxynivalenol (DON)
• central China

Acknowledgements

The author is grateful to HuBei Feed Quality Station of Analysis and Supervisor for the help provided with sample collection.

Disclosure statement

The authors declare that there are no conflicts of interest associated with performing this study.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China (NSFC) under Grant [31272479].