Comparison of Techniques for Assessment of the Contamination of Pasture Herbage with Infective Nematode Larvae

  • J.-P. Raynaud
  • L. Gruner
Part of the Current Topics in Veterinary Medicine and Animal Science book series (CTVM, volume 9)


Comparison of various sampling and Laboratory techniques to evaluate the concentration of infective nematode larvae on pasture herbage for cattle and to estimate the workload in the laboratory has been undertaken. We recommend for routine use (a) for pasture sampling procedures to take separately and at random a large number of sub-samples near the dung pats (near DP) and far from the dung pats (far DP); (b) for laboratory procedures the herbage sample can be processed either with one-day soaking or with washing in a cement mixer and sieved on a specially designed funnel. The larvae are collected on a 20 μm sieve and recovered on mercuric and potassium iodide solution (sg = 1.44).


Laboratory Procedure Potassium Iodide Grazing Season Strip Sampling Herbage Sample 
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Copyright information

© ECSC, EEC, EAEC, Brussels-Luxembourg 1981

Authors and Affiliations

  • J.-P. Raynaud
    • 1
  • L. Gruner
    • 2
  1. 1.Agricultural R & D StationPfizer InternationalAmboiseFrance
  2. 2.Station de Pathologie Aviaire et de Parasitologie, Unité d’Ecologie ParasitaireINRAMonnaieFrance

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