Skip to main content Accessibility help
×
Home

The epidemiology of Ostertagia ostertagi and other gastrointestinal nematodes of cattle in Louisiana

  • J. C. Williams (a1), J. W. Knox (a2), K. S. Marbury (a1), M. D. Kimball (a2), B. A. Baumann (a1) and T. G. Snider (a3)...

Summary

The epidemiology of Ostertagia ostertagi and other gastrointestinal nematodes in yearling beef cattle was examined in each of 2 successive years. During each year 50 head of newly weaned beef calves were given a single dose of thiabendazole and then placed on experimental pastures. Twenty-four of the animals were designated for monthly slaughter (n = 2) and analysis of worm population characteristics and 25 were designated for blood and faecal collection and for weighing. Parasite-free tracer calves were grazed alongside the yearling cattle each month (n = 2) throughout the 2 years and were also slaughtered for analysis of worm populations. Faecal egg counts, plasma pepsinogen determinations, herbage larval counts, and animal liveweight changes were recorded monthly. Results of this work substantiated previous observations on seasonal changes of populations of the different nematode genera, but greater continuity and definition of patterns was possible in the present work. Ostertagia ostertagi was the predominant nematode present. While minimal numbers of inhibited larvae were observed from autumn into winter, most of the population was adult at this time. Acquisition of inhibition-prone larvae begins in late winter and peak numbers are acquired between March and June. Little transmission of O. ostertagi occurs between June and September. Trichostrongylus axei had a similar seasonal prevalence to O. ostertagi. A major difference in the 2 years was in the pattern of maturation of inhibited larvae. This occurred early, during May 1981, following below average temperatures in May and above average rainfall in May and June. Overt type II disease was not associated with a smaller level of maturation in autumn 1981. In contrast, maturation of large burdens of inhibited larvae did not occur until autumn 1982 following a protracted period of dry and hot weather from spring. Acute type II disease was observed in autumn 1982. Reasons for the differences in maturation pattern, based on worm counts from yearling cattle and tracer calves and association of these with faecal egg counts, herbage larval counts, clinical condition, and liveweight changes are discussed.

Copyright

References

Hide All
Anderson, N. (1972). Ostertagiasis in beef cattle. Victoria Veterinary Proceedings 30, 36–8.
Anderson, N., Armour, J., Jarrett, W. R. H., Jennings, F. W., Ritchie, J. S. D. & Urquhart, G. M. (1965). A field study of parasitic gastritis in cattle. Veterinary Record 77, 1196–204.
Anderson, N. & Bremner, K. C. (1983). Life cycle and pathogenesis of helminths of major economic importance. In The Epidemiology and Control of Gastrointestinal Parasites of Cattle in Australia (ed. Anderson, N. and Waller, P. J.), pp. 2324. Melbourne: CSIRO, Division of Animal Health.
Armour, J. & Bruce, R. G. (1974). Inhibited development in Ostertagia ostertagi infection - a diapause phenomenon in a nematode. Parasitology 69, 161–74.
Armour, J., Jennings, F. W. & Urquhart, G. M. (1969 a). Inhibition of Ostertagia ostertagi at the early fourth larval stage. I. The seasonal incidence. Research in Veterinary Science 10, 232–7.
Armour, J., Jennings, F. W. & Urquhart, G. M. (1969 b). Inhibition of Ostertagia ostertagi at the early fourth larval stage. II. The influence of environment on host or parasite. Research in Veterinary Science 10, 238–44.
Armour, J. & Ogbourne, C. P. (1982). Bovine ostertagiasis: a review and annotated bibligraphy. Miscellaneous Publication no. 7, Commonwealth Institute of Parasitology. Farnham Royal, Bucks.
Baker, N. F., Fisk, R. A., Bushnell, R. B. & Oliver, M. N. (1981). Seasonal occurrence of infective nematode larvae on irrigated pasture grazed by cattle in California. American Journal of Veterinary Research 42, 1188–91.
Bowen, F. L. (1979). Nematode parasite control in weaner cattle on the Northern Tablelands of New South Wales. Australian Journal of Experimental Agriculture and Animal Husbandry 19, 269–75.
Brunsdon, R. V. (1972). Inhibited development of Ostertagia spp. and Cooperia spp. in naturally acquired infections in calves. New Zealand Veterinary Journal 10, 183–9.
Ciordia, H., Neville, W. E., Baird, D. M. & McCampbell, H. C. (1971). Internal parasitism of beef cattle on winter pastures: level of parasitism as affected by stocking rates. American Journal of Veterinary Research 32, 1353–8.
Eisenegger, H. & Eckert, J. (1975). Epizootiology and prophylaxis of dictyocauliasis and trichostrongylosis in cattle. Schweizer Archiv für Tierheilkunde 117, 255–86.
Gibbs, H. C. (1979). Relative importance of winter survival of larval nematodes in pasture and infected animal carriers in a study of parasitic gastritis in calves. American Journal of Veterinary Research 40, 227–31.
Hirschowitz, B. I. (1955). Pepsinogen in the blood. Journal of Laboratory and Clinical Medicine 46, 568–9.
Hotson, I. K. (1967). Ostertagiasis in cattle. Australian Veterinary Journal 43, 383–7.
Kistner, T. R., Wyse, D. & Averkin, E. (1979). Efficacy of oxfendazole against inhibited Ostertagia ostertagi in naturally infected cattle. Australian Veterinary Journal 55, 232–5.
Korot'ko, G. F. & Islyamova, M. E. (1963). Determination of the proteolytic activity of gastric juice, urine and serum. Sbornik Nauchmykh Trudor. Andizahnskii Gosudorstrennyi Meditsinskii Institute (Collection of Scientific Works) 4, 114–26.
Malczewski, A., Westcott, R. B., Sprailing, B. M. & Gorham, J. R. (1975). Internal parasites of Washington cattle. American Journal of Veterinary Research 36, 1671–5.
Michel, J., Lancaster, M. B. & Hong, C. (1974). Studies on arrested development of Ostertagia ostertagi and Cooperia onchophora. Journal of Comparative Pathology 84, 539–54.
Michel, J. F., Lancaster, M. B. & Hong, C. (1975). Arrested development of Ostertagi ostertagi and Cooperia oncophora: effect of temperature at the free-living third stage. Journal of Comparative Pathology 85, 133–8.
Michel, J. F., Lancaster, M. B. & Hong, C. (1976 a). Observations on the resumed development of arrested Ostertagia ostertagi in naturally infected yearling cattle. Journal of Comparative Pathology 86, 7380.
Michel, J. F., Lancaster, M. B. & Hong, C. (1976 b). The resumed development of arrested Ostertagia ostertagi in experimentally infected calves. Journal of Comparative Pathology 86, 615–19.
Michel, J. F., Lancaster, M. B. & Hong, C. (1978). Arrested development of Ostertagia ostertagi and Cooperia oncophora: Effect of the time of year on the conditioning and deconditioning of infective larvae. Journal of Comparative Pathology 88, 131–6.
Michel, J. F., Lancaster, M. D. & Hong, C. (1979). The effect of age, acquired resistance, pregnancy and lactation on some reactions of cattle to infection with Ostertagia ostertagi. Parasitology 79, 157–68.
Olsson, G. (1977). Winter ostertagiasis in Sweden: a study using slaughter-house material. Svensk Veterimartidning 29, 361–5.
Smeal, M. G. (1982). Bases and approaches for control of nematodes in cattle. In Biology and Control of Endoparasites (ed. Symons, L. E. A., Donald, A. D. and Dineen, J. K.), pp. 187201. New York: Academic Press.
Smeal, M. G. & Donald, A. D. (1981). Effects on inhibition of development of the transfer of Ostertagia ostertagi between geographical regions of Australia. Parasitology 82, 389–99.
Smeal, M. G., Fraser, G. C. & Robinson, G. G. (1980). Seasonal changes in the structure of nematode populations of cattle in New South Wales in relation to inhibited larval development. Australian Veterinary Journal 56, 80–6.
Smeal, M. G., Hotson, I. K., Mylrea, P. J., Jackson, A. R., Campbell, N. J. & Kirton, H. C. (1977). Studies on nematode infections of beef cattle in New South Wales. Australian Veterinary Journal 53, 566–74.
Smith, H. J. & Perrault, J. P. (1972). A type II ostertagiasis outbreak in cattle in New Brunswick. Canadian Veterinary Journal 13, 114–17.
Suderman, M. I. (1979). Seasonal hypobiosis of Ostertagia ostertagi (Stiles, 1982) Ransom, 1907, in cattle in Brazos County, Texas. M. S. thesis, Texas A & M University, College Station.
Tharaldsen, J. (1976). The epidemiology of trichostrongylid infections in young cattle in Norway. Acta Veterinaria Scandinavica 17 Suppl. 61, 121.
Williams, J. C. & Knox, J. W. (1976). Effect of nematode parasite infection on the performance of stocker cattle at high stocking rates on Coastal Bermudagrass pastures. American Journal of Veterinary Research 37, 453–64.
Williams, J. C., Knox, J. W., Baumann, B. A., Snider, T. G., Kimball, M. G. & Hoerner, T. J. (1981). Efficacy of ivermectin against inhibited larvae of Ostertagia ostertagi. American Journal of Veterinary Research 42, 2077–80.
Williams, J. C., Knox, J. W., Baumann, B. A., Snider, T. G., Kimball, M. D. & Hoerner, T. J. (1983). Seasonal changes of gastrointestinal nematode populations in yearling beef cattle in Louisiana with emphasis on prevalence of inhibition in Ostertagia ostertagi. International Journal for Parasitology 13, 133–43.
Williams, J. C., Knox, J. W., Sheehan, D. S. & Fuselier, R. H. (1979). Activity of fenbendazole against inhibited early fourth-stage larvae of Ostertagia ostertagi. American Journal of Veterinary Research 40, 10871090.

The epidemiology of Ostertagia ostertagi and other gastrointestinal nematodes of cattle in Louisiana

  • J. C. Williams (a1), J. W. Knox (a2), K. S. Marbury (a1), M. D. Kimball (a2), B. A. Baumann (a1) and T. G. Snider (a3)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed