Aflatoxin B1 Residues in Eggs and Flesh of Laying Hens Fed Aflatoxin B1 Contaminated Diet

Abstract

Aflatoxin B1(AFB1) and total Aflatoxins (AFT) contaminated feed effect on aflatoxins residue level in eggs, muscles (breast, leg), organs (liver, kidney, gizzard) and excreted aflatoxins in chicken litter of layer hens were monitored. Laying hens were on four levels of aflatoxins for 6 weeks and monitored weekly for the change in both AFB1 and AFT levels. Pronouncedly, the AFB1 and AFT were detected in eggs, muscles (legs, breast), organs (liver, kidney and gizzard) and litter in noticeable amounts. Total Aflatoxin (AFT) level was lowest in chicken breast (0.63 ppb) and highest in liver (2.12 ppb) and gizzard (1.22 ppb) of chicken fed diet with 965.12 ppb. Whereas, AFB1 residue was 0.66 ppb in eggs, 1.59 ppb in liver tissues of hens given feed contaminated with 894.12 ppb. Residue level of AFB1 was high in liver and kidney of all treatments. The chicken breast tissues were lowest in AFB1 and AFT of values 0.72 and 0.63, respectively. Eggs production was significantly (p<0.05) affected with AFB1 contaminated feed and egg production was decreased by more than 30%.