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Merck Manual
Veterinary Manual
The trusted provider of veterinary information since 1955

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VETERINARY PET
Pouch shell gland mucosa, laying hen
pouch-shell-gland-mucosa-laying-hen-smyth-sized
Pouch shell gland mucosa, laying hen

    Photomicrograph showing the mucosa of the pouch shell gland in a laying hen 8 days after infection with Atadenovirus. Several enlarged nuclei (arrows) in the surface epithelium contain marginated chromatin and large viral inclusions (hematoxylin and eosin).

Courtesy of Dr. Joan A. Smyth.

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Merck & Co., Inc., Rahway, NJ, USA (known as MSD outside of the US and Canada) is dedicated to using the power of leading-edge science to save and improve lives around the world.  The Merck Veterinary Manual was first published in 1955 as a service to the community.  The legacy of this great resource continues as the Merck Veterinary Manual in the US and Canada and the MSD Vet Manual outside of North America.

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