Caponizing chickens is, in short, the surgical operation necessary for removing the testicles and neutering the chickens. Yes, you have to surgically remove the testicles. When this is done the bird can grow longer, gets larger and can also be used as a broody as their hormones are now that of a hen's.

How do you Caponize?

To make a cockerel a capon, he explains, a caponizer must restrain the 3 to 6 week old bird by tying weights to its wings and feet to prevent movement and expose the rib cage. Then the caponizer cuts between the lowest two ribs of the bird and spreads them apart with a special tool to open up access to the body cavity.

What is Caponization in poultry?

Caponization is a surgical technique adopted to alter the sexual maturation of male chickens with the aim of improving the quality characteristics of carcass and meat. Under commercial conditions within each flock, about 10% of the birds usually result with incomplete caponization and are called slips.