DESIGN OF A LOCAL INCUBATOR FOR CHICKEN, DUCK AND TURKEY
A simple temperature control circuit that maintained the favourable temperature range of 38oC to 40oC â€“ for ideal incubation of poultry eggs â€“ was designed, built and tested. This simple system uses a negative temperature coefficient (NTC) thermistor as the temperature- sensing device to achieve high circuit sensitivity and also a high degree of stability of temperature of the enclosure. The circuitry could be used for application in rural environment where electricity supply is not available by the provision of a 12 V battery. It is the consideration of this factor and for the reduction of costs that leaves the control of other factors such as oxygen and carbon dioxide content, humidity and egg turning, which are necessary for optimum hatchability to be done manually.
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