Investigation of the Accuracy of the Clayton-Lane Faecal Egg Flotation Technique for Estimating the Numbers of Hyostrongylus rubidus (Hassall and Stiles, 1892) Eggs in Pig Faeces

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Abstract
We have investigated, the accuracy of a nematode egg flotation technique, using magnesium sulphate and the Clayton-Lane centrifuge system routinely used in diagnostic laboratories, to estimate the numbers of H. rubidus in porcine faeces. Eggs present in 3 g samples taken at random from a night's faecal collection from one pig were shown to be randomly distributed. The technique was not of reproducible accuracy and various sources of error were investigated.