The possible relationship of selenium and superphosphate to the frequency of occurrence of intestinal carcinomas in sheep

Authors: Simpson BH
Publication: New Zealand Veterinary Journal, Volume 20, Issue 11, pp 224, Nov 1972
Publisher: Taylor and Francis

Animal type: Livestock, Production animal, Ruminant, Sheep
Subject Terms: Abdomen, Alimentary system/gastroenterology, Epidemiology, Fertiliser, Neoplasia, Oncology, Selenium, Trace elements
Article class: Correspondence

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Abstract: In the course of an investigation into the epidemiology of carcinomas of the small intestine of sheep (Simpson, 1972) a large number of factors were looked at to see whether they were associated with differences in tumour prevalence. To avoid excessive length in the published paper, only those data pertaining to factors associated with higher prevalence of neoplasms were presented in full. Since submission of that paper for publication, queries have been raised as to the possible relationship of two other factors to the frequency of occurrence of intestinal carcinomas in sheep. Wedderburn (1972) suggested, tentatively, that a decrease in the number of cases of intestinal carcinoma in sheep he had autopsied over recent years might be associated with the widespread use of selenium as an animal remedy for the prevention of ill-thrift in sheep…

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