Abstract
Abstract The objective of this research is to state the impact of black cumin (Nigella sativa) extract in ovo injected at different doses on the hatchability of Cobb 500 Broiler fertile eggs. Injected doses of black cumin were 3 and 6 mg, applied to the air sac of the eggs on the 17.5th day of incubation. It has been established that, black cumin extract given to fertile broiler eggs had a positive effect on chick weight and chick length, but did not have a significant impact on hatching power and chick quality.
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