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The aim of study was to investigate the carcass quality of Turkish Merino, Ramlic, Kivircik, Chios and Imroz breeds in north-western Turkey under an intensive production system. After weaning at approximately 85 days of age, 46 lambs from Turkish Merino, Ramlic, Kivircik, Chios and Imroz breeds were fattened for 56 days. slaughter weights were 47.39, 45.68, 47.27, 31.08 and 29.82 kg and chilled carcass weights were 23. 35, 22.33, 23.51, 14.33 and 13.75 kg, respectively (P<0.001). Improved Turkish Merino and Ramlic and indigenous Kivircik lambs had higher carcass measurements than indigenous Chios and Imroz lambs. Chios lamb carcasses had the highest tail root fat yellowness and tail percentage while having the lowest fatness score, omental and mesenteric fat percentage and kidney knob and channel fat percentage. Turkish Merino lambs had higher shoulder percentage, lean percentage and lean/total fat ratio in the hind leg and produced less total fat in the hind leg than Ramlic and Kivircik lambs. These results indicate that improved Turkish Merino might be used to produce high quality lamb carcasses in north-western Turkey. Among indigenous breeds Kivircik showed an outstanding carcass production performance. 23,35 -22,33 -23,51 -14,33 e 13,75 Ital.J.anIm.ScI.

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