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Internal Parasitism of Steers Grazing Extensively at Different Stocking Rates

Acta Veterinaria Scandinavica volume 39, pages 311–323 (1998)Cite this article

Abstract

Eighty-four first-year grazing Holstein-Friesian steers were observed through 2 years on 40 ha of reclaimed unfertilized grassland with the objective of investigating the influence of stocking rate (SR) on internal parasitism under extensive grazing conditions. Three groups of steers were grazed each year at low, medium and high SR in separate paddocks (0.53, 1.05 and 1.55 steers/ha). The faecal egg counts of predominantly Cooperia and Ostertagia spp. were influenced by SR in the first year (p<0.05) with maximum geomet-ric means of 135,182 and 217 epg in the low, medium and high SR groups, respectively, and part of the second year (p=0.08) with maximum geometric means of 88, 134 and 195 epg. In the second year, all steers were treated with levamisole by 26 July due to di-arrhoea, being particularly severe at high SR and 7 steers were withdrawn from this group at the same time. Serum pepsinogen levels indicated a higher rate of uptake of Os-tertagia larvae in higher SR groups in the second season before treatment (p<0.01).The mean weight gains (± s.d.) for the first year were 630±58, 341 ±97 and 300±151 g/day in the low, medium and high SR groups, respectively, and in the second year the corre-sponding figures were 565±109, 357±135 and 247±129 g/day. Although the SRs were much lower than commonly found on improved pastures, we conclude that feed on of-fer was a limiting factor in late season and secondly, that the levels of exposure and up-take of nematodes in steers were affected by SR. The levels of parasitism at the medium and high SR were high enough to have affected production.

References

  • Anonymous: Terminology for grazing lands and grazing animals. J. Prod. Agric. 1992, 5, 191–201.

    Google Scholar 

  • Bryan RP, Kerr JD: The grazing behaviour of cattle in relation to the sampling of infective nematode larvae on pasture. Vet. Parasitol. 1988, 30, 73–82.

    Article  CAS  Google Scholar 

  • Ciordia H, Neville WE, Baird DM, McCampbell HC: Internal parasitism of beef cattle on winter pastures: levels of parasitism as affected by stocking rates. Am. J. Vet. Res. 1971, 32, 1353–1358.

    CAS  PubMed  Google Scholar 

  • Christensen, CM: Studies of the immune response in cattle infected with normal or inhibited larvae of Ostertagia ostertagi (Trichostrongylidae). Ph.D. thesis, 1991, Royal Vet. and Agric. University, Copenhagen, Denmark.

    Google Scholar 

  • Donald AD, Axelsen A, Morley FHW, Waller PJ, Donnelly JR: Growth of cattle on phalaris and lucerne pastures II. Helminth parasite populations and effects of anthelmintic treatment. Vet. Parasitol. 1979, 5, 205–222.

    Article  Google Scholar 

  • Foldager J, Sejrsen K, Brolund Larsen J, Nansen P, Jorgensen RJ, Hansen JW: Control of infection with gastrointestinal helminths in calves and heifers on pasture. 514. Beretning fra Statens Husdyrbrugsforsog, Frederiksberg, 1981, 325 pp.

    Google Scholar 

  • Hansen JW: The influence of stocking rate on uptake of trichostrongyle larvae, Ph.D. thesis, 1982, Royal Vet. and Agric. University, Copenhagen, Denmark.

    Google Scholar 

  • Hansen JW, Nansen P, Foldager J: The importance of stocking rate on the uptake of gastrointestinal nematodes by grazing calves. In: P Nansen, RJ Jorgensen and EJL Soulsby (Eds.): The epidemiology and control of nematodiasis in cattle. Proc. of the CEC workshop, Copenhagen, 1981. Martinus Nijhoff, The Hague, pp. 471–494.

    Chapter  Google Scholar 

  • Hansen JW, Zajac AM, Eversole DE, Gerken Jr. HJ: The effect of stocking rate and parasites control on the performance of replacement beef heifers on pasture. Vet. Parasitol. 1989, 34, 103–115.

    Article  CAS  Google Scholar 

  • Henriksen SA, Aagaard K: A simple flotation and McMaster method, Nord. Veterinaermed. 1976, 28, 392–397.

    CAS  Google Scholar 

  • Henriksen SA, Korsholm H: A method for culture and recovery of gastrointestinal strongyle larvae. Nord. Vet. Med. 1983, 35, 429–430.

    CAS  PubMed  Google Scholar 

  • Herd RP, Queen WG, Majewski GA: Sex-related susceptibility of bulls to gastrointestinal parasites. Vet. Parasitol. 1992, 44, 119–125.

    Article  CAS  Google Scholar 

  • Hilderson H, Dorny P, Berghen P, Vercruysse J, Fransen J, Braem L: Gastrin and pepsinogen changes during an Ostertagia ostertagi challenge infection in calves. J. Vet. Med. B 1991, 38, 25–32.

    Article  CAS  Google Scholar 

  • Jaster EH, Schuh JD, Wegner TN: Physiological effects of saline drinking water on high producing dairy cows. Journal of Dairy Science, 1978, 61, 66–71.

    Article  CAS  Google Scholar 

  • Jorgensen RJ: The epidemiology of bovine dictyocaulosis in Denmark. Vet. Parasitol. 1980 7, 153–167.

    Article  Google Scholar 

  • Jorgensen RJ, Maasen K: [Examination of bovine faeces for the presence of D. viviparus larvae]. Dansk Veterinaer Tidsskrift. 1982, 65, 517–518.

    Google Scholar 

  • Jorgensen RJ, Ogbourne CP: Bovine dictyocauliasis: a review and annotated bibliography. Misc. pubi. No. 8, 1985, Commonwealth Agricultural Bureau, UK, 104 pp.

    Google Scholar 

  • Kloosterman A, Ploeger HW, Frankena K: Age resistance in calves to Ostertagia ostertagi and Cooperia oncophora. Vet. Parasitol. 1991, 39, 101–113.

    Article  CAS  Google Scholar 

  • Nansen P, Foldager J, Hansen JW, Henriksen SA, Jorgensen RJ: Grazing pressure and acquisition of O. ostertagi in calves. Vet. Parasitol. 1988, 27, 325–335.

    Article  CAS  Google Scholar 

  • Nansen PJ, Gronvold J, Jorgensen RJ, Henriksen SA, Foldager J, Sejrsen K: Outbreaks of early-season trichostrongylosis in calves in Denmark. Vet. Parasitol, 1989, 32, 199–211.

    Article  CAS  Google Scholar 

  • Nisbeth J, Jarvis A, Fenton A: Measurement of human serum albumin with bromcresole green. A simultaneous comparison of two methods on the SMA 12/60. Clin. Chim. Acta, 1973, 45:189–191.

    Article  Google Scholar 

  • Radostits OM, Blood DC, Gay CC: Veterinary Medicine, 8 ed., 1994, Bailliérie Tindall, London.

    Google Scholar 

  • Ross JG, Purcell DA, Dow C, Todd JR: Experimental infection of calves with Trichostrongylus axel The course of development of infection and 1-esions in low level infections. Res. Vet. Sci. 1967, 8, 201–206.

    Article  CAS  Google Scholar 

  • SAS Institute Inc.: SAS Users guide: Statistics, version 5, Cary, NC, USA 1990.

    Google Scholar 

  • Satrija F, Nansen P: Acquisition of inhibited early fourth stage Ostertagia ostertagi larvae in tracer calves in late summer and early autumn. Bull. Scand. Soc. Parasitol. 1992, 2, 20–22

    Google Scholar 

  • Thamsborg SM, Jorgensen RJ, Waller PJ, Nansen P: The influence of stocking rate on gastrointestinal nematode infections of sheep over a two-year grazing period. Vet. Parasitol. 1996, 67, 207–224.

    Article  CAS  Google Scholar 

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Acknowledgments

The skilful assistance of A. Pedersen, M. Pearmann and N. Midtgård and support from “Johan og Hanne Weimann” foundation, Odense and the Danish Na-tional Research Foundation are greatly appreciated. We are grateful for valuable comments from Dr. Lani Stephenson.

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Authors and Affiliations

  1. Department of Clinical Studies, Large Animal Medicine, Gronnegardsvej 2, DK-1870, Frederiksberg C, Denmark

    S. M. Thamsborg & R. J. Jorgensen

  2. Danish Centre of Experimental Parasitology, The Royal Veterinary and Agricultural University, Gronnegardsvej 2, DK-1870, Frederiksberg C, Denmark

    S. M. Thamsborg & P. Nansen

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  1. S. M. Thamsborg
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  2. R. J. Jorgensen
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  3. P. Nansen
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Correspondence to S. M. Thamsborg.

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Thamsborg, S.M., Jorgensen, R.J. & Nansen, P. Internal Parasitism of Steers Grazing Extensively at Different Stocking Rates. Acta Vet Scand 39, 311–323 (1998). https://doi.org/10.1186/BF03547779

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Acta Veterinaria Scandinavica

ISSN: 1751-0147