Written by: Dr. Jacquie Jacob, University of Kentucky
Green muscle disease is also known as Oregon disease, but it is more correctly referred to as deep pectoral myopathy (DPM). This degenerative muscle disease affects the breast tenderloin (minor pectoral muscle) found deep within the breast. The breast muscles are responsible for the up and down strokes of the wings. During flapping, the muscles expand with the increased blood supply required for the activity. This expansion can be problematic for the breast tenderloin because the muscle is confined to a space between the
The condition was first reported in mature breeder turkeys and broiler breeders. Raising broiler chickens to heavy market weights
FOR MORE INFORMATION
External myopathy in poultry: Deep pectoral myopathy poultry. Merck Veterinary Manual.