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Although using old processing methods, they were considered effective at hatching chickens, especially in comparison to other techniques of the time. [3] Egyptian egg ovens are typically brick structures, often created from mud. [2] In Egypt, the ovens varied in size depending on the area served, with the largest having a capacity of 80,000 ...
Incubator (culture), a device used to grow and maintain microbiological cultures or cell cultures; Incubator (egg), a device for maintaining the eggs of birds or reptiles to allow them to hatch; Incubator (neonatal), a device used to care for premature babies in a neonatal intensive-care unit
Normally the egg is incubated outside the body. However, in one recorded case, the egg incubation occurred entirely within a chicken. The chick hatched inside and emerged from its mother without the shell, leading to internal wounds that killed the mother hen. [8] Embryo development remains suspended until the onset of incubation.
The incubator is recorded being used to hatch bird and reptile eggs. It lets the fetus inside the egg grow without the mother needing to be present to provide the warmth. Chicken eggs are recorded to hatch after about 21 days, but other species of birds can take a longer or shorter amount of time. [10] Incubators are also used to raise birds. [11]
The earliest incubators were invented thousands of years ago in ancient Egypt and China, where they were used to keep chicken eggs warm. [1] Use of incubators revolutionized food production, as it allowed chicks to hatch from eggs without requiring that a hen sit on them, thus freeing the hens to lay more eggs in a shorter period of time.
He invented a mercury thermostat to regulate the temperature of a chicken incubator. [6] This is one of the first recorded feedback-controlled devices. Modern thermostatic control was developed in the 1830s by Andrew Ure (1778–1857), a Scottish chemist. The textile mills of the time needed a constant and steady temperature to operate ...