Abstract

Interior egg quality and shell thickness of eggs from hens infested with the northern fowl mite, Ornithonyssus sylviarum (Canestrini and Fanzago), were compared with eggs from mite free hens. Egg shells of mite infested hens were significantly thicker (P≤.05) but within the normal biological range. There were no differences in either Haugh units or yolk color between the two groups of hens.

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