title: [Study of the level of benzo(a)pyrene and N-nitrosamines in the feed of laboratory animals].
abstract: BP level in feeds of experimental animals (rats and mice) did not exceed 1.5 micrograms/kg, whereas the concentration of NDMA in plant feeds ranged 0.35-1.7 micrograms/kg. The latter concentration in mixed feeds was higher (1-40 micrograms/kg) which was attributed to one of the ingredients, viz, fish feeding flour.
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D000830:Animals, Laboratory; D001564:Benzo(a)pyrene / Q000032:analysis*; D002273:Carcinogens / Q000032:analysis*; D004128:Dimethylnitrosamine / Q000032:analysis; D051379:Mice; D009602:Nitrosamines / Q000032:analysis*; D051381:Rats
chemical_list: D002273:Carcinogens; D009602:Nitrosamines; D001564:Benzo(a)pyrene; D004128:Dimethylnitrosamine
vernacular_title: Issledovanie soderzhaniia benz[a]pirena i N-nitrozaminov v kormakh laboratornykh zhivotnykh.