Study on the residues and degradation patterns of aflatoxin B1 and zearalenone in broilers

Wang Ping¹, Wang Tao¹, Hu Xiaofei², Wang Quanliang³, Peng Feng¹, Yang Xiaojin¹, Yin Qingqiang¹
1.College of Animal Science and Technology, Henan Agricultural University
2.Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences
3.Henan Guang'an Biotechnology Co., Ltd.
4.Henan Zhengyang Pig Breeding Farm
5.Luoyang Ouke Biotechnology Co., Ltd.

Abstract: This study aimed to investigate the residue and degradation patterns of aflatoxin B1 (AFB1) and zearalenone (ZEA) in broiler chickens. One hundred and fifty healthy 22-day-old Ross 308 broiler chickens were randomly divided into three groups, with five replicates per group and ten chickens per replicate. The groups were: (1) basal diet; (2) basal diet + AFB1 50 μg/kg + ZEA 500 μg/kg; (3) basal diet + AFB1 50 μg/kg + ZEA 500 μg/kg + biological antidote (MBDP). Results showed that AFB1 was mainly found in feces, liver, pectoral muscle, and serum. ZEA was mainly found in feces, liver, and serum. On day 7, the levels of AFB1 in the pectoral muscle, serum, and feces, and the levels of ZEA in the liver, serum, and feces of the group with added biological detoxifier were significantly lower than those of the two groups (P<0.05). Within days 1–7, the net excretion of AFB1 and ZEA in the group with added biological detoxifier was significantly lower than that of the two groups (P<0.05). This indicates that adding biological detoxifier to feed can reduce the residue of mycotoxins in tissues and feces, but it cannot completely eliminate toxins deposited in the body within 7 days.