[Relay toxicity of aflatoxin M1 in powdered milk. Medium term study on ducklings].

In milk from dairy Cows eating Peanut meal containing 1.71 mg/kg of aflatoxin B1, 6 to 11.7 p. cent is transformed into aflatoxin M1. 7.5 micrograms/kg of this, brought by 30 p. cent of dried milk in diet, given 69 days to Duckling is without any toxic effect. There are important lesions with a diet containing 10 to 30 p. cent of Peanut meal bringing in aflatoxin B1.