– Overall distribution of the analyzed eggs as per eggshell translucency, specific gravity and color (a total of 15,976 eggs from Ross 308AP breeders with 51 wk of age). (A) Number of eggs according to their specific gravity category and eggshell color; (B) Number of light and dark eggs within each specific gravity category selected in our study to be monitored for eggshell translucency and incubation parameters; (C) Distribution of eggshell translucency scores within each specific gravity category of selected light and dark eggs (no association between eggshell translucency and specific gravity was observed, χ2 (8, N = 1138) = 13.67, P = 0.090); (D) Distribution of eggshell translucency scores within each color category (no association between eggshell translucency and color was observed, χ2 (2, N = 1138) = 4.93, P = 0.084).