Scientia Agricultura Sinica ›› 2012, Vol. 45 ›› Issue (24): 5102-5109.doi: 10.3864/j.issn.0578-1752.2012.24.016

• ANIMAL SCIENCE·RESOURCE INSECT • Previous Articles     Next Articles

Investigation on Contamination Situation of Aflatoxin in Detected Feeds and Feedstuffs in Beijing Area

 FAN  Yu, LI  Xiao-Ying, ZHAO  Li-Hong, JIA  Ya-Xiong, JI  Cheng, MA  Qiu-Gang, CHEN  Yu, WANG  Liang   

  1. 1.College of Animal Science/National Key Laboratory of Animal Nutrition, China Agricultural University, Beijing 100193
    2.Animal Husbandry and Veterinary Station, Beijing 100107
  • Received:2012-02-28 Online:2012-12-15 Published:2012-08-15

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Abstract: 【Objective】This study was conducted to analyze and evaluate the contamination situation of aflatoxin in feeds and feedstuffs in Beijing area. 【Method】 A total of 187 feed samples from 21 farms in Beijing were sampled to detect and quantify the content of aflatoxin (B1, B2, G1 and G2). An efficient HPLC with post-column photochemical derivatization method was developed, including immunoaffinity step for aflatoxin extraction from feeds and feedstuffs followed by liquid chromatography (LC) for quantification. 【Result】 Results showed that the detection rate of AFB1 in corn, bran, soybean meal, DDGS, swine and poultry complete feeds was 50.0%, 46.2%, 33.3%, 94.1%, 67.1% and 94.3%, the over standard rate was 6.2%, 0.0%, 0.0%, 5.9%, 6.6% and 0.0%, and the average content was 5.98, 0.25, 1.00, 9.83, 2.89 and 1.06 µg•kg-1, respectively. 【Conclusion】 These results indicated that the average content of aflatoxin in complete feeds, corn and DDGS were the highest. Aflatoxin contamination was widely found in both feeds and feedstuffs.

Key words: feeds , mycotoxin , aflatoxin , contamination

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