THE FERTILITY OF KIVIRCIK AND SAKIZ X KIVIRCIK CROSSBRED F1 EWES AND THE SURVIVAL RATE OF THEIR LAMBS

This study was carried out to obtain crossbred F, ewes having prolific birth characteris­tic and being appropriate dam line for commercial crossbreeding. For the fertility traits of the 80 F1 (Sakız x Kıvırcık) ewes the birth rate was 87.50%, prolific birth rate was 62.86% and litter size was 1.84. For the Kı­vırcık ewes, the number of ewes exposed was 62 and the birth rate, prolific birth rate and litter size were 91.94%, 24.56% and 1.25, respectively. The survival rate at 75th day of age for 129 crossbred slaughter lambs was 75.97% and for 71 Kıvırcık lambs was 92.96%.