title: Modifications of the McMaster worm egg counting method.
abstract: Modifications of the McMaster egg counting technique are presented and discussed including the breaking up of hard faecal pellets, removal of air bubbles prior to counting, avoidance of salt spillage on the counting microscope and the use of sodium azide for preventing development of nematode eggs in field samples.
mesh_terms: D000818:Animals; D001386:Azides; D005243:Feces / Q000469:parasitology*; D009348:Nematoda; D010270:Parasite Egg Count / Q000379:methods*; D011309:Preservation, Biological
chemical_list: D001386:Azides