PMID: 9193949May 1, 1997Paper

Transmission dynamics of helminth parasites of pigs on continuous pasture: Oesophagostomum dentatum and Hyostrongylus rubidus

International Journal for Parasitology
A Roepstorff, K D Murrell

Abstract

An increase in alternative outdoor pig production systems is occurring in Denmark, and this study was designed to elucidate the transmission patterns of Oesophagostomum dentatum and Hyostrongylus rubidus in pigs allowed to graze continuously on a pasture. A group of pigs was turned out in May 1993 (Year 1 of the study) and subsequently inoculated with low numbers of both helminths. These pigs were followed parasitologically until October by serial necropsy and sampling of faeces, grass and soil. A non-inoculated group of pigs was similarly followed on the same pasture in Year 2 (1994). Pasture infectivity was measured using helminth-naïve tracer pigs during all seasons. The pasture vegetation was rapidly destroyed by the pigs, resulting in a dirt lot by the autumn of Year 2. The area was soon contaminated with eggs, resulting in heavy pasture infectivity and increasing worm burdens in late summer; then the numbers of larvae declined markedly. In May of Year 2, newly exposed pigs became only lightly infected (mostly O. dentatum), and no transmission was observed in July-August of Year 2, probably due to an unusually dry summer and a lack of protecting vegetation. The results indicate that both O. dentatum and H. rubidus are very...Continue Reading

References

Oct 1, 1989·Veterinary Parasitology·A Roepstorff, S E Jorsal
May 1, 1987·Veterinary Parasitology·A RoepstorffP Nansen
Feb 1, 1987·International Journal for Parasitology·P Nansen
Oct 26, 1974·The Veterinary Record·S B Kendall
Jul 1, 1974·Journal of Comparative Pathology·S B Kendall, A J Small
Nov 1, 1980·The Veterinary Record·H D PattisonW C Smith
Sep 6, 1980·The Veterinary Record·J H Rose, A J Small
May 1, 1997·International Journal for Parasitology·A Roepstorff, K D Murrell

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Citations

May 1, 1997·International Journal for Parasitology·A Roepstorff, K D Murrell
Sep 10, 1999·International Journal for Parasitology·P Nansen, A Roepstorff
Oct 6, 2001·Veterinary Parasitology·A RoepstorffS Petkevicius
Jun 21, 2011·Veterinary Parasitology·A RoepstorffS M Thamsborg
Oct 16, 2013·Veterinary Parasitology·Heidi Huus PetersenStig M Thamsborg
Oct 22, 2013·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Diego Silva da Silva, Gertrud Müller

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