© 2021, Chartered Inst. of Building Services Engineers. All rights reserved.The aim of this study was to determine the slaughter and carcass characteristics of Kivircik lambs reared in different seasons. A Total of 36 Kivircik male lambs, which were reared in different seasons, were used in the study; autumn rearing (AR, n= 12 lambs), spring-summer rearing (SSR, n= 12 lambs), winter rearing (WR, n= 12 lambs). All the lambs in a specific rearing season were slaughtered at approximately 134 days old. Pre-slaughter live weight, hot carcass weight and real dressing percentage for WR, SSR and AR groups were 27.97, 20.65, and 21.70 kg; 12.94, 7.83, and 8.87 kg, and 55.15, 50.25, and 50.05%, respectively (P < 0.001). WR lambs had significantly higher carcass and hind limb compactness score as well as ribs percentage than SSR and AR lambs (P < 0.001). The results indicated that lambs from WR group had better carcass characteristics than lambs from AR and SSR groups.