The experiment was conducted on three breeding flocks of broiler hens Cobb, Hubbard and Ross 60 chickens each. Each flock was divided into an experimental and control group (30 hens and 4 roosters). The chickens in the experimental group were fed for 4 weeks with a feed containing 0.5 mg ochratoxin A/kg, whereas the feed for the control group was not contaminated. The hatched healthy chickens from all groups were reared to day 49 of life. On day 49, 5 males and 5 females from each group were slaughtered and carcass analysis was performed. Feeding ochratoxin A-contaminated feed to broiler breeding flocks had a negative influence on the body weight, carcass yield and meat percentage of offspring. Broilers from parents fed the contaminated feed showed 0.1 kg worse feed utilization per kg body weight gain. No effect of feeding contaminated feed to the breeding flocks was found on the mortality of the broilers.