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Subclinical laminitis is the most frequent laminitis form in dairy cattle. The animals affected show no lameness, but at claw trimming yellowish bloody inclusions appear within the horn. Through the changes in the corium only horn of lower quality can be produced.
Subclinical laminitis is regarded as the primary cause of numerous other claw diseases like sole ulcers, white-line defects, claw tip ulcers, double sole formation and heel horn erosion.
Yellowish red spots in the sole area are typical symptoms of laminitis.
A bluish spot indicates subclinical laminitis.
The dorsal wall is bent, a typical symptom of laminitis.
A double sole, caused by laminitis.
After the end of the examination a lameness assessment (locomotion scoring) was conducted.
Source: Prof. Dr. Manfred Fürll, Katrin Wilhelm, Jürgen Wilhelm of the Medical Veterinary Clinic of Leipzig University, Nutztierpraxis aktuell, January 2011
Images: Landwirtschaftsverlag GmbH, top agrar Fachbuch „Klauenprobleme schneller lösen“ [”Solve claw problems faster“], 2003