Studies on prevalence, predisposing factors and microscopic evaluation of bovine horn cancer

Abstract

A total of thirty clinical cases of horn cancer were selected for the study. Prevalence of horn cancer in relation to species, breed, age, sex and side of the horn were studied. Prevalence of horn cancer was higher in nondescript cattle (67%) followed by Gir (22%) and Sahiwal (11%). Higher prevalence was recorded in cow bullocks above 8 years (69.33%). All cases involved unilateral affection of horn. Predisposing factors of horn cancer included yoke, painting of horn, irritation due to rope tying and exposure to sun. Microscopically well differentiated tumour was recorded. Cells containing keratinized cytoplasm without nuclei whorled together to form pink colored keratin pearls.