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Maximum-likelihood estimates of the mortality and migration rates of the infective larvae of Ostertagia ostertagi and Cooperia oncophora

Published online by Cambridge University Press:  06 April 2009

B. T. Grenfell
Affiliation:
Department of Pure and Applied Biology, Imperial College, London 8W7 2BB
G. Smith
Affiliation:
Department of Pure and Applied Biology, Imperial College, London 8W7 2BB
R. M. Anderson
Affiliation:
Department of Pure and Applied Biology, Imperial College, London 8W7 2BB

Summary

We present an analysis of the survival and migration rates of the infective (L3) stages of Oslertagia ostertagi and Cooperia oncophora. Although the majority of laboratory studies show that the survival of the L3 stage depends upon temperature, moisture and the age of the larvae, a simple mathematical model of larval demography, in which their mortality and migration rates are held constant, provides as good agreement between observed and predicted larval counts as models in which these rate processes are made explicit functions of larval age and microclimate. Maximum-likelihood estimates of larval mortality rates in the faeces and on the herbage are 0·0284/day and 0·00887/day respectively. The average migration rate from faeces to herbage under temperate Northern European conditions is estimated as 0·00884/day. Finally, we discuss the probable scale of L3 larval losses due to desiccation and lavage (active or passsive migration into the soil).

Type
Research Article
Copyright
Copyright © Cambridge University Press 1986

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References

REFERENCES

Al Saqur, I., Bairden, K., Armour, J. & Gettinby, G. (1982). Population study of bovine Ostertagi spp. infective larvae on herbage and soil. Research in Veterinary Science 32, 332–7.CrossRefGoogle Scholar
Ander, R. M., Mercer, J. G., Wilson, R. A. & Carter, N. P. (1982). Transmission of Schistosoma mansoni from man to snail: experimental studies of miracidial survival and infectivity in relation to larval age, water temperature, host size and host age. Parasitology 85, 339–60.CrossRefGoogle Scholar
Anderson, R. M. & Whitfield, P. J. (1975). Survival characteristics of the free-living cercarial population of the ectoparasitic digenean Transversotrema patialensis (Soparker, 1924). Parasitology 70, 295310.CrossRefGoogle Scholar
Armour, J. & Ogbourne, C. P. (1982). Bovine Ostertagiasis: a Review and Annotated Bibliography. Commonwealth Agricultural Bureaux; Miscellaneous publication No. 7 of the Commonwealth Institute of Parasitology.Google Scholar
Bairden, K., Parkins, J. J. & Armour, J. (1979). Bovine ostertagiasis: a changing epidemiological pattern. Veterinary Record 105, 33–5.CrossRefGoogle ScholarPubMed
Brasher, S. & Perkins, D. F. (1978). The grazing intensity and productivity of sheep in the grassland ecosystem. In Population Ecology of British Moors and Montane Grasslands (ed. Heal, D. W. and Perkins, D. F.), pp. 355–74. Berlin: Springer-Verlag.Google Scholar
Castle, M. E. & Macdaid, E. (1972). The decomposition of cattle dung and its effect on pasture. Journal of the British Grassland Society 27, 133–7.CrossRefGoogle Scholar
Eriksson, B. (1981). Den ‘potentiella’ evapotranspiration: Sverige. Norrkoping: Sverige Meteorologiska och Hydrologiska Institut. SMHI Reports on Meteorology and Climatology, RMK 28.Google Scholar
Fincher, G. T. (1973). Dung beetles as biological control agents for gastro-intestinal parasites of livestock. Journal of Parasitology 59, 396–9.CrossRefGoogle Scholar
Fincher, G. T. & Stewart, T. B. (1979). Vertical migration by nematode larvae of cattle parasites through the soil. Proceedings of the Helminthological Society of Washington 46, 43–6.Google Scholar
Gibbs, H. C. (1980). Peristence on pasture of the infective larvae of nematodes parasitizing Maine dairy cattle. American Journal of Veterinary Research 41, 1694–5.Google Scholar
Goldberg, A. (1968). Development and survival on pasture of gastro-intestinal nematode parasites of cattle. Journal of Parasitology 54, 856–62.CrossRefGoogle Scholar
Goldberg, A. (1970). Development, migration and survival on pasture of gastrointestinal nematocies of cattle: summer contamination. Proceedings of the Helminthological Society of Washington 37, 166–9.Google Scholar
Gruner, L., Mauleon, H. & Sauve, C. (1982). Migrations of trichostrongyle infective larvae: experiments with bovine parasites in soil. Annales de recherches vétérinaires 13, 51–9.Google Scholar
Gruner, L. & Sauve, C. (1982). The distribution of trichostrongyle infective larvae on pasture arid grazing behaviour of calves. Veterinary Parasitology 11, 203–13.CrossRefGoogle Scholar
Leimbacher, F. (1978). Intérêt d'utiliser Ia prévision du risque de grande douve. Revue de médecine Vétérinaire 129, 1027–46.Google Scholar
Nedler, J. A. & Wedderburn, R. W. M. (1972). Generalized linear models. Journal of the Royal Statistical Society A 135, 370–84.Google Scholar
Ollerenshaw, C. B. (1974). The effects of meteorological factors upon parasites. Symposia of the British Society for Parasitology, vol. 12 (ed. Taylor, A. B and Muller, R.). Oxford: Blackwell Scientific Publications.Google Scholar
Pandy, V. S. (1972). Effect of temperature on survival of the free-living stages of Ostertagia ostertagi. Journal of Parasitology 58, 1042–6.CrossRefGoogle Scholar
Pandy, V. S. (1973). Predatory activity of neniatode trapping fungi against the larvae of Trichostrongylus ascei and Ostertagia ostertagi: a possible method of biological control. Journal of Helminthology 47, 3548.CrossRefGoogle Scholar
Persson, L. (1974 a). Studies on the survival of eggs and infective larvae of Ostertagia ostertagi and Cooperia oncophora in herbage. Zentralblatt für Veterinärmedizin B 21, 787–98.CrossRefGoogle ScholarPubMed
Persson, L. (1974 b). A modified Baermann apparatus for the recovery of infective nematode larvae from herbage and manure. Zentralblatt für Veterinärmedizin B 21, 483–8.CrossRefGoogle ScholarPubMed
Persson, L. (1974 c). The survival of infective larvae of Ostertagia ostertagi and Cooperia oncophora in hayloft dried grass. Zentralblatt für Veterinärmedizin B 21, 641–5.CrossRefGoogle ScholarPubMed
Persson, L. (1974d). The survival of infective larvae of Ostertagia ostertagi and Cooperia oncophora in solid cattle manure and urine. Zentralblatt für Veterinärmedizin B 21, 677–91.CrossRefGoogle ScholarPubMed
Raynaud, J. P. & Gruner, L. (1982). Feasibility of herbage sampling in large extensive pastures and availability of cattle nematode infective larvae in mountain pastures. Veterinary Parasitology 10, 5764.CrossRefGoogle ScholarPubMed
Rose, J. H. (1961). Some observations on the free living stages of Ostertagia ostertagi, a stomach worm of cattle. Parasitology 51, 295301.CrossRefGoogle ScholarPubMed
Rose, J. H. (1963). Ecological observations and laboratory experiments on the free-living stages of Cooperia oncophora. Journal of Comparative Pathology and Therapeutics 73, 285–96.CrossRefGoogle ScholarPubMed
Rose, J. H. (1970). Parasitic gastroenteritis ira cattle. Factors influencing the time of the increase in the worm population on pastures. Research in Veterinary Science 11, 199208.CrossRefGoogle Scholar
Smith, G. & Grenfell, B. T. (1983). The influence of water temperature and pH on the survival of Fasciola hepatica miracidia. Parasitology 88, 97104.CrossRefGoogle Scholar
Smith, G. & Wilson, R. A. (1980). Seasonal variations in the microclimate of Lumnaea truncatula habitats. Journal of Applied Ecology 17, 329–42.CrossRefGoogle Scholar
Smith, H. J. (1972). On the persistence of infective Ostertagia ostertagi, Cooperia oncophora and Nematodirus helvetianus on pastures. Canadian Journal of Comparative Medicine 36, 333–8.Google ScholarPubMed
Smith, H. J. & Archibald, R. M. (1969). On the survival of overwintering bovine gastrointestinal nematode larvae during the subsequent grazing season. Canadian Journal of Comparative Medicine 33, 4447.Google ScholarPubMed
Weeda, W. C. (1967). The effect of cattle dung patches on pasture growth, botanical composition and pasture utilization. New Zealand Journal of Agricultural Research 10, 150–9.CrossRefGoogle Scholar
Williams, J. C. & Bilkovich, F. R. (1971). Development and survival of infective larvae of the cattle nematode. Ostertagia ostertagi. Journal of Parasitology 57, 327–38.CrossRefGoogle ScholarPubMed
Williams, J. C. & Bilkovich, F. R. (1973). Distribution of Ostertagia ostertagi infective larvae on pasture herbage. American Journal of Veterinary Research 34, 1337–44.Google ScholarPubMed
Young, R. R. & Anderson, N. (1981). The ecology of the free living stages of Ostertagia ostertagi in a winter rainfall region. Australian Journal of Agricultural Research 32, 371–38.CrossRefGoogle Scholar