Occurrence of mycotoxins in feed ingredients and complete feeds obtained from the Beijing region of China

Journal of Animal Science and Biotechnology

Jianyun Zhang²  Qiugang Ma²  Cheng Ji²  Shanshan Ma²  Lei Sun¹  Yaxiong Jia³  Yu Fan²  Lihong Zhao²  Xiaoying Li² 

[1] Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China;State Key Laboratory of Animal Nutrition, China Agricultural University, No. 2. West Road Yuanming Yuan, Beijing 100193, P.R. China;Beijing Municipal General Station for Animal Husbandry and Veterinary Service, Beijing, China

关键词: Zearalenone;    Swine feeds;    Ochratoxin A;    Deoxynivalenol;    Beijing region;    AflatoxinB₁;   

Others  :  1139239
DOI  :  10.1186/2049-1891-5-37

 received in 2014-01-07, accepted in 2014-07-16,  发布年份 2014

【 摘 要 】

Background

The current study was carried out to provide a reference for the control of mycotoxin contamination in feed ingredients and complete feeds for swine.

Methods

A total of 55 feed ingredients, including 14 corn, 13 wheat bran, 11 soybean meal and 17 dried distillers grains with solubles (DDGS) as well as 76 complete swine feeds including 7 creep feeds, 14 starter feeds, 14 grower feeds, 18 grower-finisher feeds, 10 gestating sow feeds, and 13 lactating sow feeds were randomly collected from 15 swine farms located in the Beijing region of China from July to August 2011. Immunoaffinity clean-up, using High-Performance Liquid Chromatography (HPLC) in combination with UV or Fluorescence Detection, was used for quantitative analysis of aflatoxin B₁ (AFB₁), deoxynivalenol (DON), zearalenone (ZEA) and ochratoxin A (OTA) in the ingredients and complete feeds.

Results

DON and ZEA were the most prevalent mycotoxins found. DON was detected at percentages of 93, 92, 54, 100 and 97% with a mean level of 1.01, 0.44, 0.05, 1.36 and 0.65 ppm in the samples of corn, wheat bran, soybean meal, DDGS and complete feeds, respectively. The detected percentages of ZEA were 100, 100, 54, 100 and 100 with mean levels of 109.1, 14.9, 9.2, 882.7 and 58.9 ppb in the same samples. In the wheat bran and soybean meal samples, the content of all four mycotoxins were below the maximum limits set by Chinese regulations while the percentage of samples that exceeded regulatory limits were 7, 57 and 7% for corn, and 7, 14 and 3% for the complete feeds for AFB₁, DON and OTA respectively. DDGS showed the most serious mycotoxin contamination and the percentage of samples that exceeded regulatory limits were 6, 88 and 41%, for AFB₁, DON and ZEA, respectively.

Conclusions

This paper is the first to present data on the natural occurrence of AFB₁, DON, ZEA and OTA in ingredients and complete feeds obtained from swine farms in China’s Beijing region. The data shows that feed ingredients and complete swine feeds obtained from these farms are most often contaminated with DON followed by contamination with AFB₁ and ZEA.

【 授权许可】

   
2014 Li et al.; licensee BioMed Central Ltd.

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