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(A) Stage 39 (10.5–11 days) quail embryo. (B) Schematic representation of the average pigmentation pattern seen at stage 39. Little change in the black pigmentation pattern is observed other than increased pigment appearing on the wing, neck and thorax. Faint pigmentation is also visible for the first time around the intertarsal joint. The length of pigmented feather germs is increased. The mean beak length is 2.0 mm and third toe length is 6.0 mm.
