Comparative Anatomical Studies on Humerus of Commercial Broiler and Desi Chicken

In the proximal extremity interiorly head of hummers of broiler is more thick as compared to desi bird. The large and deep air sac on medial surface is present in commercial broiler but small and shallow observed in desi birds. The crest of humerus is sharp on lateral surface in desi birds but blunt in commercial broiler. Very prominent deep fossa on lateral surface is present in desi but shallow in broiler.Smooth deltoid tuberoses is prominent on medial surface in broiler but absent in desibirds. A large condyleis deep in broiler but shallow in desi birds. On the posterior surface a large trochlea in broiler but small in desi birds. The biometrical studies of humerus of broiler and desi chicken includes, the means length, width and circumference. The mean length, width and circumference of the proximal extremity of humerus showed no difference .The length and width of distal extremity of humerus. The circumference of distal extremity of humerus of broiler and desibird was significant (P<0.05). Circumference of shaft of humerus of birds was not significantly different. However the width of shaft of humerus of birds shown significant difference (P<0.05), and the length of shaft of humerus of birds were highly significant (P<0.01).