Ayam Cemani | Black Chicken → You must have seen chickens in whom some of the feathers were black. But have you ever seen completely black chickens? Stumbling on the photo below, I thought it was a photoshop. But it turns out that in the world there is a rare breed of black chickens, called Ayam Chemani. Ayam Chemaani breed chickens are completely black, including feathers, skin, beak, claws, and even flesh and internal organs.
The plumage of these chickens have a metallic black sheen. Previously, in the United States, adult chickens of this breed were sold for $ 2,500. Such a black color of this breed is due to the dominant gene that causes hyperpigmentation, and is called fibromelanosis.
Ayam Cemani beaks and tongues, black combs and wattles, and even their meat, bones, and organs appear black but the blood of the Ayam Cemani is normally colored. This gene is also found in some other black fowl breeds. The roosters weigh 2.0–2.5 kg and the hens 1.5–2.0 kg. The hens lay cream-colored eggs, although they are poor setters and rarely hatch their own brood. Eggs weigh an average of 45 g. In the past, individual birds in the United States of America have been priced at $2500.
Source — Wikipedia