Bu çalışmada Akkaraman, İvesi, Dağlıç ve Güney Karaman ırklarından altışar baş, 3,5 aylık yaşta tekiz erkek kuzu besi performansları ve karkas özellikleri belirlemek üzere ad libitum olarak besiye alınmışlardır.Besi başı ağırlığı ,56. gün ağırlığı ve tüm besi boyunca ortalama günlük canlı ağırlık kazancı sırasıyla Akkaramanlarda 20.4, 36.7 kg ve 294.1 g, Ivesilerde 19.1, 37.7 kg ve 315.7 g , Dağlıçlarda 21.2 , 35.7 kg ve 277.1 g ve Güney Karamanlarda ise 19.9,30.3 kg ve 195.7 g olarak bulunmuştur.Gruplar arasında besi başı ağırlığı bakımından farklılık bulunmazken 56. Gün ağırlıkları ve günlük canlı ağırlık kazancı bakımından Güney Karaman kuzuları diğer ırklardan istatistiksel olarak önemli ölçüde düşük bulunmuştur (p

In this study, six in each single male lambs 3.5 months of age from Akkaraman, Awassi, Dağlıç and South Karaman sheep breeds were fed on concentrates ad libitum in order to determine their fattening performance and carcass characteristics. Live weights at the beginning and 56 th days of fattening period and average daily live weight gains during whole fattenning period determined as 20.4,36.7 kg and 294.1 g for Akkaraman, 19.1,37.7 kgand315.7 ğ for Awassi, 21.2, 35.7 kg and 277.1 g for Dağlıç, 19.9,30.3 kg and 195.7 g for South Karaman respectively. There were no statistically significant differences between groups in respect of beginning weights, but 56 th day weights and daily weight gains of South Karaman lambs were found lower than the other breeds (p<0,01). Average daily concentrate intake and feed conversion ratios were determined as 1131.8 g and 3.99 for Akkaraman, 1221.1 g and 4.00 for Awassi, 1145.1 g and 4.19 for Dağlıç and 1245.7 g and 6.86 for South Karamaa The differences between groups for these diameters were found significant (p<0.01). Slaughtering, warm and cold carcass weights and dressing percentages were found as 35.90, 17.94,17.27 kg and 47.84 % for Akkaraman, 34.50,16.62,16.12 kg and 46.71 % for Awassi 35.80, 18.48, 17.96 kg and 50.11 % for Dağlıç, 28.80, 14.86, 14.48 kg and 50.43 % for South Karaman respectively. By the cutlet region analyses, lean, bone, subcutaneous fat, intermuscular fat and the worthless parts ratios were deterimined as 55.63, 24.95, 1.98, 5.57 and 2.85 % for Akkaraman, 51.03, 23.80, 14.24, 6.64 and 4.27 % For Awassi, 53.28, 71.26, 15.97, 6.68 and 2.51 % for Dağlıç and 5U,04, 21.81, 17.20, 8.28 and 2.57% for South Karaman respectively. There were statistically significant differences between breeds for subcutaneous fat and remining parts ratios (p<0.01). The results of this investigation indicated that Akkaraman, Awassi and Dağlıç iambs had similar fattening performance, but South Karaman lambs had lower Fattening performance than the others.