Overberg Research Project. IX. First stage larvae per gram (L₁p.g.) of faeces : an efficient method of diagnosing nematode parasites of sheep ante mortem

Abstract

Nematode eggs were collected by mixing the faeces with a sugar solution, filling a flat-sided medicine bottle (100 ml), and allowing eggs to float and adhere to the upper surface for 30 min. After discarding the faeces, eggs hatched within 24 h at 20-30⁰C. Each genus was counted in a counting chamber and the L₁p.g. estimated. The morphology of L₁ of Haemonchus, Teladorsagia, Trichostrongylus, Oesophagostomum and Strongyloides is briefly described.