On Methods of counting Nematode Ova in Sheep Dung

Abstract

There have been described in detail adaptations of dilution egg counting and direct centrifugal flotation for use on sheep faeces for the ova of Haemonchus contortus , together with certain data on their comparative efficiency. It is suggested that extension of the methods as given, or with appropriate modifications, would permit studies from a variety of angles on the helminthic infestations of the gastro-intestinal tract and its diverticula among domestic animals.