Mutagenicity of feeds and bovine milk in districts with different levels of enviromental pollution
1996
Pokorna, Z. | Zudova, Z. (Krajska Hygienicka Stanice, Brno (Czech Republic)) | Strnadova, V. | Rubes, J.
Mutagenic activities of feedstuffs and bovine milk investigated by the Ames test in two districts of the Czech Republic (Teplice and Prachatice), differing in the levels of industrial pollution. Salmonella typhimurium strains TA 98 and TA 100 with or without metabolic activation were used in the tests. The samples were rinsed and extracted with acetone and methanol. The total number of revertants obtained in the industrial district Teplice was significantly higher than the corresponding value for the Prachatice district. The strain TA 98 proved to be more sensitive in the mutagenicity tests than the strain TA 100. Thirty-eight and thirty-one milk samples were collected in the districts Teplice and Prachatice, respectively. The overall evaluation demonstrated a significant between-the-districts difference in the total number of revertants induced by the milk samples in the strain TA 98 and TA 100.
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