info:oai:orgprints.org:4416info:ofi/fmt:xml:xsd:bookMcLeanBarbaraMcLean, BarbaraFrostDavidFrost, DavidEvansEifionEvans, EifionClarkeAldwynClarke, AldwynGriffithsBernardGriffiths, Bernard2005The inclusion of diatomaceous earth in the diet of grazing ruminants and its effect on gastrointestinal parasite burdensproceeding