Setting up a successful peafowl hatchery begins before the birds lay eggs. Make sure the breeder birds are free of parasites. Feed them chicken or pheasant layer feed about a month before breeding, and keep their housing areas clean.
The eggs can be hatched by using a mechanical incubator. Check the temperature for consistency. It should be between 99 and 100 degrees Fahrenheit. Fertile peafowl eggs need to be incubated for 27 to 30 days at around 100 degrees Fahrenheit. Incubators with fans that circulate the air can keep the temperature even. Place the incubator in an area where the temperature and humidity are easily controlled. Outdoor areas are not a good choice.
The incubator's humidity level is also important. A humidity level of 60 percent is ideal. Measure the humidity using a hygrometer, and adjust it by opening or closing incubator vents or by using a pan of water placed inside. When the water evaporates, the humidity increases.
Place the eggs in incubating trays on their sides, with the pointed end tipped down slightly. Mark them on one side in pencil with the date they were set and with a line on the other side drawn 180 degrees from the date. Never use a permanent marker as it can be fatal to an embryo. Some incubators have automatic turners that turn the eggs, or they can be turned by hand, 180 degrees every two to three hours.
Once the eggs hatch, place the chicks under a standard brooder lamp with a temperature of 95 degrees Fahrenheit. As they begin to mature and grow feathers, lower the temperature each week by 5 degrees, until the heat lamp can be turned off completely.