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The growth rate, feed conversion efficiency and carcass characteristics of nine native Malpura (M) and eight Awassi × Malpura half bred (AM) male lambs were compared under intensive feeding on 60:40 concentrate and roughage based composite feed. Weaning body weight was similar in the two genetic groups while finishing body weight, total body weight gain and average daily gain during the experiment were higher (p<0.01) in AM than M lambs. The feed conversion efficiency was lower in M than AM lambs with 15.7 and 19.8 per cent feed conversion efficiency, respectively, in the two genetic groups. The dressing yield in terms of preslaughter weight or empty live weight was however similar in the two genetic groups. The loin eye area was also greater (p<0.01) in AM than M lambs. The cutability was similar for the two groups amounting to 33.2, 13.3, 13.2, 23.3 and 16.6% of half carcass, respectively, for leg, loin, rack, neck and shoulder and breast and foreshank. On an average the separable lean, fat and KOH bone content of the half carcass were 48.3, 16.8 and 23.3% for native M and 54.1, 15.0 and 19.0% for AM lambs, respectively. It is concluded that growth rate and feed conversion efficiency were better in Awassi × Malpura half bred than native Malpura lambs while dressing yield and cutability of standard cuts were similar in the two genetic groups. (Asian-Aust. J. Anim. Sci. 2002. Vol 15, No. 3 : 377-381)

Growth, Feed Conversion Efficiency and Carcass Characteristics of Malpura and Malpura × Awassi Crossbred Lambs in a Hot Semi Arid Environment