Deep Pectoral Myopathy in Broiler Chickens

Abstract

Deep pectoral myopathy was detected in 10 cases of 52-to 58-day-old broiler chickens. The lesions were bilaterally recognized only in the deep pectoral muscles showing greenish discoloration and atrophic degeneration. Histopathology disclosed ischemic Zenker's degeneration with proliferation of newly formed multinuclear muscle fibers and some fibrous tissue. Lymphocytic perivenulitis was noted.