The present study was to use modified comet assay to detect DNA damage induced by aflatoxin B1(AFB1) in duckling hepatic cells.Ducklings were administered orally with AFB1 and the samples of liver cells were isolated at 2 h post treatment.The modified comet assay was performed and the DNA damage was determined by an increase in the comet parameters in tested animals.The results showed that AFB1 exposure could significantly increase tail length,the percentage of tail DNA(tail DNA%),tail moment and Olive tail...