Embryotic Development (21 days to grow):The embryology of the chicken is the development of the chicken inside the egg. Laying hens sit on the eggs for 21 days until they hatch. What is happening in the egg during those 21 days?Day 1 – Beginning of the nervous system, head and eyesDay 2 – Heart BeatsDayContinue reading "Embryotic Development (21 days to grow) – WCIA"
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