Anatopathological changes observed on the European bison leg after binding of snare

Abstract

Case report regards changes aroused in European bison metacarpus and phalanxes by binding of a snare on right foreleg of 3 years old European bison. Animal was found on March 16th 2010 year in Białowiez˙a Forest near Les´na village. Necropsy revelated a steel cord 2 mm in diameter and deformation peripheral piece of leg. The object was delivered to Veterinary Faculty WULS in Warsaw for anatomopathological and radiography examinations. The X-ray examination demonstrated advanced irregular and radiolucent changes in the metacarpal and phalanxes area. The bone was augmented because of the strong, chronic reaction of tie periosteum. The presence of the foreign body around the bone caused probably osteotitis or osteomyelitis in the past. Conclusion is chronically post inflammation changes tie metacarpal bones, nonlytic. During necropsy was observed the process of water maceration and all bones showed extensive exostoses and deformations which were effect of chronic periostitis. On the bones numerous fusees appeared and all anatomical pieces was malformed. This changes aroused in consequence of prolonged irritation by steel cord. Penetrating wounds of the skin in bison may provoke inflammation of cutis, subcutis and periosteum and also bacterial infection which intensified inflammatory reaction of tissues. Occurred numerous abscess and prolipherative changes. Before the death bison suffered huge pain and hunger.