The geographic distribution of carcinomas of the small intestine in New Zealand sheep

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Abstract
Extract Prior to 1960, carcinomas of the intestine of sheep had been reported only rarely. Dodd (1960 Dodd, D. C. 1960. Adenocarcinoma of the small intestine of sheep. N.Z. vet. J., 8: 109–112. [Taylor & Francis Online] [Google Scholar] , 1964 Dodd, D. C. 1964. Ovine intestinal adenocarcinoma. N.Z. vet. J., 12: 38–38. [Taylor & Francis Online] [Google Scholar] ) reported a total of 51 cases of carcinomas of the ovine small intestine in material passing through a New Zealand diagnostic laboratory over a period of 7 years. Six of the 88 “wasting” sheep examined by Cook (1964) Cook, B. R. 1964. Causes of wasting in adult sheep. N.Z. vet. J., 12: 17–17. [Taylor & Francis Online] [Google Scholar] in New Zealand were affected by “neoplasia of the intestine”. The common occurrence of small intestinal carcinomas in ewes in New Zealand was confirmed by Webster (1966 Webster, W. M. 1966. Neoplasia in food animals with special reference to special reference to the high incidence in sheep. N.Z. vet. J., 14: 203–214. [Taylor & Francis Online] [Google Scholar] , 1967 Webster, W. M. 1967. A further survey of neoplasms in abattoir sheep. N.Z. vet. J., 15: 51–54. [Taylor & Francis Online] [Google Scholar] ) who found lesions in 0.52% of slaughtered ewes, and in approximately 0.02% of hoggets and wethers. No cases were noted m over 200,000 slaughtered lambs.

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