Merck Manual

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Eliciting pain response in traumatic reticuloperitonitis, cow
eliciting-pain-response-in-TRP-cow-braun-sized
Eliciting pain response in traumatic reticuloperitonitis, cow

    The veterinarian in this photograph is using a rubber hammer to elicit a pain response by means of percussion in the region of the reticulum in a Holstein Friesian cow suspected of having traumatic reticuloperitonitis.

Courtesy of Dr. Ueli Braun.