Abstract:
A study was conducted to review the effects of pre-incubation and incubation conditions on
hatchai)iljty 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 Kurolilcrs 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.