Most meat spots are tiny pieces of tissue from the hen’s oviduct. They are usually brown in color, and found in the thick albumen, chalazae, or the yolk. They range in size from 0.5 mm to more than 3 mm in diameter. They are sterile and harmless. The spot can…

Contrary to popular belief, these tiny spots do not indicate a fertilized egg or the presence of a disease. Rather, they are caused by the rupture of a blood vessel on the yolk surface during formation of the egg or by a similar accident in the wall of the oviduct.…