Akademik Veri Yönetim Sistemi
TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES, cilt.24, sa.1, ss.71-79, 2000 (SCI-Expanded)
This study was conducted to investigate the possibilities of developing terminal male and female lines for lamb production by the crossing of native breeds, that is, Akkaraman, Sakiz (Chios) and Kivirik breeds. The Akkaraman sheep is a fat-tailed breed raised in central Anatolia, while Sakiz and Kiwircik sheep aren non fat-tailed breeds raised in western and northern-western Anatolia. The Birth rate of Akkaraman x Akkaraman (AA), Sakiz x Akkaraman (SA) and Kivircik x Akkaraman (KA) breeding groups were generally found as follows: 94.0, 78.6 and 74.0% in 1996; and 93.3, 90.8 and 85.0% in 1997, respectively. The survival rate of AA, SA F-1 and KA F-1 lambs from birth to weaning (90-days) were 89.5, 92.9 and 87.1%, respectively. Least squares means obtained for AA, SA F-1 and KA F-1 lambs were 4.71, 4.71 and 4.69 kg for birth weight; 23.69, 22.89, 21.84 kg for weaning weight; 36.02, 34.96 and 34.23 kg for 180-day weight; and 50.99, 36.41 and 29.84 cm for the widest circumference of tail at 180 days, respectively. The results of this study show that adaptation of SA F-1 and KA F-1 crossbred lambs in Central Anatolian conditions was high and that crossbred genotypes had a promising performance with respect to developing terminal male and female lines for lamb production.