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

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VETERINARY PET
Infectious bronchitis, wrinkled egg shells
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Infectious bronchitis, wrinkled egg shells

    Wrinkled egg shells and poor internal egg quality, in addition to decreases in egg production, are the result of infectious bronchitis virus infection in layer and breeder hens.

Courtesy of Dr. Jean Sander.

In these topics
Infectious Bronchitis in Poultry

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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