Hatching eggs may be warmed to a temperature of 25 to 30BC, prior to setting. The normal development of the embryo is dependent on the heat being held within a very narrow range in the incubator. In small still-air incubators, the temperature of the upper surface of the egg is higher than on the lower surface, while in large incubators, the air movement maintains the same temperature over the entire surface. For this reason, a still-air incubator must be operated at a higher temperature than a forced-draft incubator. In small still-air incubators, a constant temperature of 39BC is considered satisfactory to produce good hatching results.
Baada ya kupata mashine umenunua mayai ya Tsh. 350000. Unaweka kwenye mashine yako unapata labda tuseme vifaranga 850. Kuangalia unakuta mashine yako imetumia umeme wa Tsh 50000. Umetafuta wateja wa vifaranga wako ukapata na vyote vikachukuliwa kwa kila kimoja Tsh. 2000 maana katika eneo lako hiyo ndo bei. Kihesabu hapo utakuwa umetapata Tsh. 1700000. Ukitoa Tsh 350000 uliyonunulia mayai na Tsh. 50000 ya umeme unabaki na kiasi gani ndugu mjasiriamali?