Abstract
A study was conducted to review the effects of pre-incubation and incubation conditions on hatchability and chick quality of Kuroiler chickens. The most important incubation factors that affect hatch time, hatchability and hatch window (temperature, humidity, turning, and ventilation) were reviewed. There was a significant influence (P<0.05) of breeder age on hatchability. Also, there was significance (P<0.05) of breeder age on texture of the egg shell; while there was no significance (P > 0.05) between size of egg and hatch window. The performance of Kurolilers at the end of the rearing period depended, in part, on the quality of day-old chicks at placement. The quality of day-old chicks was highly affected by the incubation conditions, hatch time (which determines the time spent in the hatchery under high temperature and humidity), and handling of chicks after hatch.Key words: Egg shell, hatch handling, hatch time, hatch window
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