The avian embryo is amazing and exciting. In only three weeks, a


Cooperative Extension Service Publication 268, The Home Flock


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avian embryo

Cooperative Extension Service Publication 268, The Home Flock. 
When the hatch is completed, disconnect the incubator and remove all chicks, shells, and 
unhatched eggs. Wash the interior of the incubator with a warm detergent solution. If the 
incubator is to be used immediately, rinse it with a disinfectant solution. After the 
incubator has dried thoroughly, store it for later use. 


Constructing an Egg Incubator 
Small incubators, suitable for use in the home, can be purchased from stores that sell farm 
equipment. An egg incubator can be built at home with a little work and expense. This 
publication contains plans for two still-air incubators. 
The first incubator is constructed from a polystyrene ice chest. It is inexpensive, and 
because it is insulated, is inexpensive to operate. It can be damaged easily. The eggs and 
chicks can be observed through a window in the lid. This incubator will hold about 40-45 
eggs. 
The second incubator is more expensive, but is more permanent. It is constructed of 
plywood and glass, and will accommodate up to 100 large eggs. Both incubators are heated 
by a commercially available heating cable. The heating cable can be replaced with two or 
three ordinary light bulbs. Get a list of organizations that sell incubator supplies and 
equipment from your county agent or state poultryman. 
Polystyrene Incubator 
You'll need the following equipment and supplies to construct this incubator.
Polystyrene ice chest (12-16" x 20-24" x 12"-15")
Heating cable
Micro-switch assembly (thermostat)
Glass (approx. 10"x14")
¼" welded wire - hardware cloth (24"x36")
Cake tin (9"x14"x1½")

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