EN
The objective of the studies was to determine the content of tin in dog and cat feeds conserved in metal packaging and available in retail trade in Poland in 1995. Tin concentration in home feeds ranged from 0.003 to 0.0269 mg/kg of fresh mass. The lowest level of this element was found in As feed, the highest in Dogland beef feed. Foreign fodder for dogs contained this metal at a concentration from 0.001 to 0.026 mg/kg. The lowest concentration of tin was found in Rokus feed with chicken and the highest - in Chappi. In the cat fodder, the lowest concentration of tin was noted in Whiskas cans, the highest in Felix feed. On the basis of these results and data from literature, moreover, assuming similar toxicity of tin for animals, it can be stated that the content of tin in the studied fodder within the determined limits is not toxicologically dangerous for its dog and cat consumers.