13+ Ayam Cemani All Black Chicken Pics. The gene that causes fibromelanosis is a mutation that existed in asia more than 800 years ago. They have become one of the most sought after chickens.

Black Chickens: The Bizarre Rare Breed That Buyers Can't ... from cdn0.wideopencountry.com

Find out more about this bird. So, how much are ayam cemani chickens? This rare indonesian chicken is completely black, on the outside as well as on the inside.

What is the rarest chicken breed?

They have black feathers, combs, wattles and even black internal organs and muscle fibers. The 'goth chicken' that has black skin, meat, bones and organs: The ayam cemani stands proudly upright as it carries its beautiful soft glossy black. The ayam cemani can have grey inside the mouth, but no color besides grey and black in the mouth is allowed.