Ocular squamous cell carcinoma in Simmental cattle in Zimbabwe
1995
Otter, W.D. | Hill, F.W.G. | Klein, W.R. | Everse, L.A. | Ruitenberg, E.J. | Ven, T.M. van der | Koten, J.W. | Steerenberg, P.A. | Faber, J.A.J. | Rutten, V.P.M.G.
In Zimbabwe, ocular squamous cell carcinoma (OSCC) was frequently observed in 5 breeding herds of Simmental cattle, a Bos taurus breed originating from Switzerland. In these herds, initial signs of OSCC were already noticeable in cattle about 3 years old. Gradually, OSCC prevalence increased, and 36 to 53% of cattle over 7 years old had 1 or more tumors. More tumors developed in Simmental cattle with periorbital white skin than in cattle with periorbital pigmented skin. Other breeds of cattle (eg, Friesian) also are partly white-faced and live in Zimbabwe in a comparable environment; yet, OSCC prevalence was lower in those breeds.
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