COMPARATIVE MACRO ANATOMY OF FORELIMB BONES OF BLACK BENGAL GOAT AND INDIGENOUS DOG: AN OVER VIEW

Abstract

A macro anatomic study was undertaken to compare the forelimb bones of predominant Black Bengal Goat (BBG) and Indigenous Dog in Bangladesh by means of visual observation. Twelve matured (6 BBGs and 6 dogs) male animals were sacrificed ethically to prepare the skeleton without any destruction. The observation revealed that the scapular spine unequally divided the lateral surface in BBG whereas it divided the lateral surface into two equal halves in dog. The tuber scapulae of dog was blunt but slender in BBG. On the other hand coracoid process was absent in dog. Acromion process was short, blunt and extended up to the level of glenoid cavity but in case of BBG it does not reach to the glenoid cavity. The humerus of dog was comparatively longer, less twisted, round head and more convex. A large supratrochlear foramen at the distal end of the humerus was present in dog but absent in BBG. Radius and ulna appeared as two separate bones in dog but fused in BBG where the interosseous space was narrow and extended throughout the length of the bones of dog. There were seven bones in the carpus of dog; three at the proximal and four at the distal row but six bones in BBG; three in proximal and three in distal row. On the other hand five metacarpal bones in dog but one bone in BBG were found. Only two digit where two sesamoid bones for each proximal digit and one for distal digit in case of BBG but five digits where nine proximal (two for each developed digit and one for first) and five distal sesamoid bones were found in dog. In conclusion, the present study suggests that the anatomy of the forelimbs bones of BBG were differed from indigenous dog in various point of view.