EN
The present studies were carried out on sheep divided into three age groups (from 1 to 5, 8 to l2, 15 to 60 months).The sheep came from two folds from Western Pomerania regions of various degree environment contamination. Fluoride and magnesium were determined in ovine bone samples (coccygeal vertebrae) and in blood serum.On the basis of the obtained results the following conclusions were reached: 1.This study proved that the statistically significant increase of the fluoride content in blood and bones of sheep had no influence on the magnesium content in this material. 2. Feeding had a great impact on blood and bones fluoride content of sheep kept in an environment threatened by industrial emissions.