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The development of single infections of Nematodirus battus in lambs

Published online by Cambridge University Press:  06 April 2009

C. J. Mapes  and
R. L. Coop
C. J. Mapes
Affiliation:
Parasitology Department, Moredun Research Institute, Edinburgh, 9
R. L. Coop
Affiliation:
Parasitology Department, Moredun Research Institute, Edinburgh, 9
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Extract

The course of single infections of Nematodirus battus was studied and the developmental phases of the fourth larval stage described. The third moult occurred between days 2 and 4 after infection and the fifth between days 8 and 10. The period of maximum larval penetration of the intestinal mucosa occurred around day 4 and most of the larvae had returned to the mucosal surface by day 6, during the middle of the fourth-stage. Some larvae remained deep in the mucosa and moulted to the fifth-stage in this site.

The relationship between growth and morphological development was not constant and was different in worm populations from different sites. Some larvae grew very rapidly during the early fourth-stage and then entered a period of lethargus while continuing to develop sexually, while others grew and developed throughout the larval stage.

The worms recovered from the second 30% of the small intestine were consistently smaller and less advanced morphologically than those from the first 30%. The worms in the posterior region of the small intestine were preferentially lost from the mucosa in the third- and fourth-stages between days 2 and 4 and from the mucosal surface as adults between days 12 and 16.

Type
Research Article
Information
Parasitology , Volume 64 , Issue 2 , April 1972 , pp. 197 - 216
Copyright
Copyright © Cambridge University Press 1972

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References

REFERENCES

Alphey, T. J. W. (1970). Studies on the distribution and site location of Nippostrongylus brasiliensis within the small intestine of laboratory rats. Parasitology 61, 449–60.CrossRefGoogle ScholarPubMed
Bawden, R. J. (1969). Some effects of the diet of mice on Nematospiroides dubius (Nematoda). Parasitology 59, 203–13.CrossRefGoogle Scholar
Bull, P. C. (1953). Distribution of the nematode Trichostrongylus retortaeformis (Zeder, 1800) in the wild rabbit, Oryctolagus cuniculus (L.). New Zealand Journal of Science and Technology B, 34, 449–56.Google Scholar
Denham, D. A. (1969). The development of Ostertagia circumcincta in lambs. Journal of Helminthology 43, 299–310.CrossRefGoogle ScholarPubMed
Garton, G. A. (1969). Digestion and absorption of lipids in the ruminant. Proceedings of the Nutrition Society 28, 131–9.CrossRefGoogle ScholarPubMed
Kay, R. N. B. (1969). Digestion of protein in the intestine of adult ruminants. Proceedings of the Nutrition Society 28, 140–51.CrossRefGoogle ScholarPubMed
Mapes, C. J. & Coop, R. L. (1970). The interaction of infections of Haemonchus contortus and Nematodirus battus in lambs. I. The effect of massive infections of Haemonchus on subsequent infections of Nematodirus. Journal of Comparative Pathology 80, 123–36.CrossRefGoogle ScholarPubMed
Mapes, C. J. & Coop, R. L. (1971). Effect of concurrent and terminated infections of Haemonchus contortus on the development and reproductive capacity of Nematodirus battus. Journal of Comparative Pathology 81, 479–92.CrossRefGoogle ScholarPubMed
Pout, D. D. (1970). The mucosal surface patterns of the small intestine of grazing lambs. British Veterinary Journal 126, 257–63.CrossRefGoogle Scholar
Rose, J. H. (1969). The development of the parasitic stages of Ostertagia ostertagi. Journal of Helminthology 43, 173–84.CrossRefGoogle ScholarPubMed
Thomas, R. J. (1959). A comparative study of the life histories of Nematodirus battus and N. filicollis, nematode parasites of sheep. Parasitology 49, 374–86.CrossRefGoogle Scholar