Abstract: This study aimed to understand and master the pollution status of fumonisins （B₁+B₂）, ochratoxin A, T-2 toxin and aflatoxin B₁ in plant feed raw materials, guide and help feed production enterprises as well as livestock and poultry breeding enterprises to carry out the prevention and control of mycotoxins pollution, avoid the harms brought by mycotoxins to feed products as well as livestock and poultry feeding, and reduce the economic losses. In the year of 2019, a total of 62 samples from 17 kinds of plant feed raw materials were collected and tested by LC-MS/MS and IAC-HPLC according to the national standard of ′Feed Hygiene Standard′ （GB 13078-2017）. The results showed that the pollution status of fumonisins （B₁+B₂）, ochratoxin A and aflatoxin B₁ in the 17 kinds of plant feed raw materials obviously varied, the average detection rates of fumonisins （B₁+B₂）, ochratoxin A and aflatoxin B₁ were 37.09%, 8.06% and 29.03%, respectively, and their maximum detection values were 15.96 mg/kg, 26.60 μg/kg and 351.00 μg/kg, respectively. According to the test results, the pollution status caused by these 4 kinds of mycotoxins in the 17 kinds of plant feed raw materials was relatively heavy, and the overall pollution rate was 48.40%. The content of aflatoxin B₁ in corn bran, spouting corn bran and peanut meal exceeded the limits required by the national standard, but the pollution rate was not proportional to the exceeding standard rate. It is indicated that the mycotoxins pollution in plant feed raw materials is widespread, which results in serious impacts to feed products and feeding safety. In view of this problem, specific suggestions on controlling the quality of plant feed raw materials were put forward, in hoping to provide reference for controlling the contents of mycotoxins in feed raw materials.

Key words: feed raw materials, fumonisins（B₁+B₂）, ochratoxin A, T-2 toxin, aflatoxin B₁