[Selection of screening methods for the detection of aflatoxins in animal feed].

Five different screening methods of the detection of aflatoxin B1 are compared as to their usability in ten feeds, feed concentrates, and complete feed mixtures. Method II, i. e. the author's modification of the method of Pons et al. (1973) was found to be the best for the highest number of different feeds. Aflatoxin B1-positive findings were obtained in samples of groundnut cake and protein concentrates a) for laying hens and b) for breeding pigs. No aflatoxins were detected in other feed samples: soya, sunflower, maize, fish meal, complete feed mixtures--table trout trout feed, carp stock feed, table carp feed, duckling fattening mixture.