Comparative of egg production performances between three lines of Japanese quail female

The current experiment was conducted in the poultry field of the Animal Production Department at the College of Agriculture - University of Kirkuk, for the period from (7/3/2021 – 7/6/2021). 300 female Japanese quail birds were used in the experiment (white= 100, brown= 100, gray= 100). They were raised from the age of one day to 120 days to study the productive characteristics of eggs concerning age of sexual maturity, cumulative egg production, egg production period, mean of egg weight, egg mass, hen day production, feed intake, feed conversion ratio. There were no significant differences in sexual maturity among the three breeds. The same applies to egg production. As for the cumulative egg production, the brown line outperformed the white and wild line. Highly significant differences were found for egg weight, in which the white genetic line outperformed the brown and wild line. The same applies to the egg mass, which exceeds the white genetic line. As for the characteristic of egg production based on H.D. The brown color outperformed the white and wild colors. There were no significant differences in the amount of feed consumed. While the wild-colored genetic line outperformed the brown and white genetic lines in food conversion coefficient. The same applies to the ESR trait, in which the wild-colored genetic line outperformed the rest of the genetic lines. In conclusion, the three genetic lines of Japanese quail are differing significantly in the egg weight and the cumulative egg production, egg mass, H.D.%, FCR, and ESR. This is due to the genetic makeup of the lines were used.