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A Survey of the Helminths of Scottish Hill Sheep

Published online by Cambridge University Press:  18 November 2009

I. W. Parnell ,
C. Rayski ,
A. M. Dunn  and
G. M. Mackintosh
I. W. Parnell
Affiliation:
Department of Zoology of the University of Edinburgh
C. Rayski
Affiliation:
Department of Zoology of the University of Edinburgh
A. M. Dunn
Affiliation:
Department of Zoology of the University of Edinburgh
G. M. Mackintosh
Affiliation:
Department of Zoology of the University of Edinburgh
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Extract

A survey of the helminths of Scottish hill sheep, made by collecting over seven hundred viscera from sheep which died from disease or accidents on over eighty farms, has shown that worms are the direct or indirect cause of the death of many sheep, and of loss in condition of many more.

Infestations of H. contortus increase in incidence and severity in the late spring, but the majority of hill sheep are not infested with it and it is not a serious problem unless lack of herding, bad weather, etc. harm the sheep.

Ostertagia spp. are often the most numerous species found in Scottish hill sheep; their numbers increase considerably for several weeks in the spring and to a less extent and for a shorter time in the autumn. Any prophylactic dosing programmes for lambs, hoggs or adult sheep must include Ostertagia spp. in the species against which they are directed.

The numbers of T. axei increase in Scottish hill sheep during the winter and for some weeks from March onwards contribute to the pathogenic effect of clinical and subclinical helminthiasis of sheep.

Type
Research Papers
Information
Journal of Helminthology , Volume 28 , Issue 1-2 , June 1954 , pp. 53 - 110
Copyright
Copyright © Cambridge University Press 1954

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References

REFERENCES

Black, W. A. P., 1948.—“The seasonal variations in chemical constitution of some of the sub-littoral seaweeds common to Scotland.” Parts I, II and III. J. Soc. chem. hid., Lond., 67, 165–176. (W.L. 11539.)CrossRefGoogle Scholar
Cameron, T. W. M., 1923.—“The internal parasites of sheep and other ruminants in Scotland.” J. Helminth., 1, 53–60. (W.L. 11224c.)CrossRefGoogle Scholar
Cameron, T. W. M., 1931.—“Experimental infection of sheep with Dicrocoelium dendriticum.” J. Helminth., 9, 41–44. (W.L. 11224c.)CrossRefGoogle Scholar
Carter, H. B., Franklin, M. C. and Gordon, H. McL., 1946.—“The effect on wool production of mild infestation with Trichostrongylus colutbriformis in sheep.” J. Coun. sci. industr. Res. Aust., 19, 61–64. (W.L. 11140a.)Google Scholar
Crofton, H. D., 1949.—“The ecology of immature phases of trichostrongyle nematodes. III. Larval populations on hill pastures.” Parasitology, 39, 274–280. (W.L. 16035.)CrossRefGoogle Scholar
Durbin, C. G., 1952.—“Longevity of the liver fluke Fasciola sp. in sheep.” Proc. helm. Soc. Wash., 19, 121. (W.L. 16747a.)Google Scholar
Leiper, J. W. G., 1938.—“The longevity of Fasciola hepatica.” J. Helminth., 16, 173–176. (W.L. 11224c.)CrossRefGoogle 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. 11224c.)CrossRefGoogle Scholar
Morgan, D. O., Parnell, I. W. and Rayski, C., 1951.—“The seasonal variations in the worm burden of Scottish hill sheep.” J. Helminth., 25, 177–212. (W.L. 11224c.)CrossRefGoogle Scholar
Morgan, D. O., Parnell, I. W. and Rayski, C., 1952.—“Worm infestations in Scottish hill sheep.” Scot. Agric., 32, 46–53. (W.L. 20001f.)Google 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.” Scot. Agric., 27, 28–35. (W.L. 20001f.)Google Scholar
Oliver, D., 1951.—Report to Teviotdale Farmers Club. 04.Google Scholar
Parnell, I. W. and Mackie, A., 1952.—“Some observations on the lethal effects of various chemicals against the free-living stages of Sclerostomes (Nematoda).” Brit. J. Pharmacol., 7, 509–533. (W.L. 3569a.)Google ScholarPubMed
Robertson, D., 1937.—“The parasitic helminths of sheep in Scotland.” C. R. XII. Congr. Int. Zool. Lisbonne. 2013–2043.Google Scholar
Robertson, D., 1939.—“Helminths from hill sheep.” Scott. J. Agric., 22, 231–235. (W.L. 20010.)Google Scholar
Robertson, D., 1942.—“Parasitic worms of sheep.” Trans. Highl. agric. Soc. Scot., 5 Series, 54, 54–79. (W.L. 21505.)Google Scholar
Shanks, P. L., 1952.—Report on an investigation into sheep losses in Shetland during the winter of 1951–52. Personal communication.Google Scholar
Shore, D. A., 1942.—“Survival of sheep nematodes in pastures.” J. agric. Res., 65, 329–337. (W.L. 10966.)Google Scholar
Shorb, D. A., 1944.—“Survival on grass plots of eggs and larvae of the stomach worm,” Haemonchus contortus. J. agric. Res., 68, 317–324. (W.L. 10966.)Google Scholar
Swales, W. E., 1941.—“Control of certain parasitic worms in sheep.” Special pamphlet No. 51. Agricultural Supplies Board. Ottawa.Google Scholar
Tribe, D. E. and Tribe, E. M., 1949.—“Sheep-grazing of seaweed observations on North Ronaldshay, Orkney Is.” Agriculture, Lond., 56, 416–419. (W.L. 316a.)Google Scholar
Veglia, F., 1915.—“The anatomy and life history of Haemonchus contortus (Rud.)” 3rd and 4th Rep. vet. Res. S. Afr., 349–500. (W.L. 18640.)Google Scholar
Wilson, A. L., Morgan, D. O., Parnell, I. W. and Rayski, C., 1953.—“Helminthological investigations on an Argyllshire hill farm.” Brit. vet. J., 109, 179–190. (W.L. 3589l.)CrossRefGoogle Scholar