三元交雑種子めん羊(母羊:サフォーク種,種雄羊:コリデール種×チェビオット種)の増体および産肉成績について

概要

論文の詳細を見る
Growth and carcass data of six crossbred lambs (Exp.1: 3 ewes and Exp. 2: 3 rams) sired by a Corriedale × Cheviot ram out of Suffolk ewes were collected. The lambs were weaned at 12 weeks of age, fattened and slaughtered at 7〜8 months of age. The weaned lambs were fed on feed consisting of one part of hay to two parts of concentrate. They were given rations weighing 4.5〜2.8% of their body weight per day. Carcass traits were measured after 48-hr chilling at 0〜4℃. The average live weights of ewe lambs were 4.61kg at birth, 22.4kg at weaning and 40.9 kg at slaughter (31.3 weeks of age). Those of ram lambs were 5.11 kg at birth, 32.7kg at weaning and 63.0kg at slaughter (33.3 weeks of age). Dressing percentages were 46.5% with ewe lambs and 47.5% with ram lambs. Ewe lamb carcasses were somewhat smaller, however, ram lamb carcasses were comparable to Suffolk carcasses.
石川県農業短期大学の論文
1993-12-15