Merck Manual

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Red earlobes portending pigmented eggs, chicken
Red earlobes portending pigmented eggs, chicken

Red earlobes portend pigmented eggs in a chicken.

For an examination, check the color of the earlobes to predict the color of the eggs the hens will produce. Hens that have white earlobes generally produce white eggs, and hens that have red earlobes generally produce brown or other pigmented eggs.

Courtesy of Dr. Patricia Wakenell.