Comparison between Synthetic population Bulgarian milk (SPBM) and
East-Friesian (EF) sheep was done for laboratory yield of cheese and milk
composition. The comparison of the means for the individual laboratory yield
of cheese showed significantly higher values in the ewes of SPBM on first
lactation (2,4735 g) compared to the EF breed (1,7608 g), (P<0,001). The
higher amount of cheese probably was connected with the tendency for higher
content of the fat, protein and dry matter. However on the second lactation
the two breeds showed the same values: SPBM 1,9370 g and EF breed 1,9282 g.
No significant differences in the quantity of milk and its composition
between the sheep on first and second lactation were observed for both
breeds.