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The Seasonal Variations in the Worm Burden of Scottish Hill Sheep

Published online by Cambridge University Press:  18 November 2009

D. O. Morgan ,
I. W. Parnell  and
C. Rayski
D. O. Morgan
Affiliation:
Department of Zoology, University of Edinburgh.
I. W. Parnell
Affiliation:
Department of Zoology, University of Edinburgh.
C. Rayski
Affiliation:
Department of Zoology, University of Edinburgh.
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Extract

1. The investigation shows that the spring increase in worm egg output of Scottish hill sheep is correlated with an increase in worm burden.

2. The increase is mainly due to members of the Trichostrongylidae, and of these the stomach worms, Ostertagia spp. and Trichostrongylus axei, are the most important.

8. This increase in the worm burden in the spring is due to larvae picked up at that time, and there was no evidence that any were lying dormant throughout the winter in the mucous membrane of the abomasum and small intestine.

Type
Research Article
Information
Journal of Helminthology , Volume 25 , Issue 3-4 , December 1951 , pp. 177 - 212
Copyright
Copyright © Cambridge University Press 1951

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References

Crofton, H. D., 1949.—“The ecology of immature phases of trichostrongylenematodes. III. Larval populations on hill pastures”. Parasitology, 39. 274–280. (W.L. 16035.)CrossRefGoogle Scholar
Cushnie, G. H. and White, E. G.. 1948.—“Seasonal Variations in Faeces Worm egg Counts of Sheep.” Vet. Rec. 60, 105–107. (W.L. 22523.)Google ScholarPubMed
Harbour, H. E., Morgan, D. O., Sloan, J. E. N. and Rayski., C., 1946.—“Trials with phenothiazine-salt mixtures for the prevention of parasitic gastritis in lambs.” J. comp. Path., 56, 180–195. (W.L. 11136.)CrossRefGoogle ScholarPubMed
Kotlan, A., 1949.—“The developmental and pathological significance of the histotropic phase in parasitic nematodes.” XIVth International VeterinaryCongress, London, 1949.Section I (b), 1–3.Google Scholar
Morgan, D. O., Parnell, I. W. and Rayski, C., 1950. “Further Observations on the Seasonal Variation in Worm Egg Output in Scottish Hill Sheep.” J. Helminth., 24. 101–122. (W.L. 11224.)CrossRefGoogle Scholar
Morgan, D. O. and Sloan, J. E. N., 1947.—“Research on Helminths in Hill Sheep with special reference to seasonal variations in Worm egg output.” Scott. Agric, 27. 28–35. (W.L. 20010.)Google Scholar
Naerlano, G., 1949.—“Nutrition in relation to nematode parasitism in sheep.” XlVth International Veterinary Congress, London, 1949.Section I (b), 1–6.Google Scholar
Orr, J. B., and Fraser, Allan H. H., 1932.—“Restoring the fertility of Scottish Sheep Grazings.” Trans. Highl. Agric. Soc. Scot., 44, 64–85. (W.L. 21505.)Google Scholar
Ross, I. C., and Gordon, H. Mcl., 1936.—“The internal parasites and parasitic disease of sheep. Their treatment and control.” Sydney. 238 pp.Google Scholar
Taylor, E. L., 1935.—“Seasonal Fluctuation in the number of Eggs of Trichostrongylid Worms in the Faeces of Ewes.” J. Parasit., 21, 175–179.(W.L. 11428.)CrossRefGoogle Scholar