The aim of this study was to determine the relation between fleece losses and Zinc, Cupper levels in blood serum of Merino Sheep. Thirty fleece lossed and fourty two healthy Merino Sheep in Karacabey State Farm Flock were used as material. The average levels of Zinc and Copper in blood serum of healthy ,Merino Sheep .group were; %27±0,63 µg. and %33.72±0,77•µg. respective1y. The Zinc and Copper valuesfor Merino Sheep group effected by fleece loss were %14,45±0,.23 µg. arid %63,5 ± 1.17 µg. respectivly.

The Zinc and Copper levels were determined by the Atomic Absorbtion Spectrofotometer.

The differences between means of both elements in two groups were found to be significant. (p<0,01).

In spite of decreases in Zinc level in fleece lossesa • Merino Sheep, increasing of copper levels were significant.