Green Meat in Chicken? Here’s What’s Really Going On

look unpleasant. However, appearance alone does not establish that microorganisms caused the change.

In fact, this distinction becomes especially important because discoloration can have several causes.

What Causes Green Muscle Disease in Chickens?

Restricted Blood Flow to Breast Muscle

The basic mechanism behind green muscle disease involves restricted circulation.

Chickens use their pectoral muscles when moving their wings. During vigorous wing activity, those muscles need additional blood and oxygen. The deep pectoral muscle can swell as circulation increases.

However, this muscle sits in a confined anatomical space between the sternum

.