Experimental observations on parasitic liver white spot in New Zealand sheep

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Abstract
Extract The majority of parasitic liver lesions seen in New Zealand sheep can be ascribed to Taenia hydatigena and Echinococcus granulosus, both of which have a widespread distribution, and to Fasciola hepatica. where it occurs locally (Whitten, 1945 Armstrong, M. C. 1954. N.Z. vet. J., 2: 28–28. [Taylor & Francis Online] [Google Scholar] ; Bull, 1953 Bull, P. C. 1953. N.Z.J. Sci. Tech. B, 34: 341–341. [Google Scholar] ; Armstrong, 1954 Done, J. T. , Richardson, Marion D. and Gibson, T. E. 1960. Res. vet. Sci., 1: 133–133. [Google Scholar] ; Gemmell, 1961a Gemmell, M. A. 1961a. N.Z. vet. J., 9: 29–29. [Taylor & Francis Online] [Google Scholar] ; 1961b Gemmell, M. A. 1961b. N.Z. vet. J., 9: 37–37. [Taylor & Francis Online] [Google Scholar] ; 1961c Gemmell, M. A. 1961c. N.Z. vet. J., 9: 40–40. [Taylor & Francis Online] [Google Scholar] ). In view of the value placed on the incidence of such lesions in sheep as an indicator of the progress in the campaign to eradicate E. granulosus and T. hydatigena, it was considered important to assess the significance of other parasites in the aetiology of focal fibrotic liver lesions known colloquially as “white spot”.