Commercial poultry farms have equipment to take off the feathers, but you will have to do it buy hand. Finally, you need to market your chickens. Supermarkets have contracts with major suppliers, so you cannot sell them there. You can try selling them at a flea market, but you would need a booth.
Antidiuretic hormone (ADH): A relatively small (peptide) molecule that is released by the pituitary gland at the base of the brain after being made nearby (in the hypothalamus). ADH has an antidiuretic action that prevents the production of dilute urine (and so is antidiuretic).
The permeability of the distal tubule and collecting duct is controlled by ADH. ADH is produced in the hypothalamus and is stored and released from the pituitary gland. ADH increases the permeability of the distal tubule and collecting duct, so more water is reabsorbed. This causes the urine becomes more concentrated.