supply, the muscle lacks oxygen. As a result, localized muscle tissue becomes damaged and eventually dies.
Mississippi State University Extension describes the condition as necrosis and atrophy of the deep pectoral muscle. The affected tissue changes appearance as the process develops. Initially, damaged muscle can look unusually red. Later, it may resemble a bruise. Eventually, the breakdown of muscle pigments can produce the distinctive green color.
Therefore, green muscle disease does not mean that green material somehow entered the chicken. Instead, the color develops inside damaged muscle tissue.
The location
