29/05/2025
Do you know what Cyanosis is?
Cyanosis refers to a dark bluish or purplish coloration of the chicken's appendages (comb, wattles) and face. It occurs when there are low levels of oxygen in the blood. It can be caused by poor circulation, throat obstructions, abdominal distention (resulting from compression of the air sacs), heart disease, liver disease and respiratory/breathing issues.
Additional reasons associated with abdominal distention include space-occupying masses, egg related issues (egg yolk peritonitis, impacted oviduct, internal laying, salpingitis, cysts, egg binding), hernia, ovarian cancer, amyloidosis and atherosclerosis.
Cyanosis can occur intermittently or remain steady depending on the cause. Chickens with heart disease may develop cyanosis after exerting effort in the form of exercise, mating with a hen or dueling with another rooster.
If you notice your chicken has cyanosis (intermittently or steadily) make an appointment with your vet. If they are concurrently having difficulty breathing, bring them to your vet ASAP.
Note: Cyanosis may be difficult to impossible to detect in certain breeds of chickens with dark skin (Ayam Cemani, silkies).
Visit PoultryDVM.com for additional information.