CONTENTS • Foreword • Preface • Purpose • Occurrence • Lifecycle • Reaction to heat • Reaction to fermentation • Reaction to chemicals • Egg protection • Materials and Methods • Strategy • Description of farms • choice of farm • size of farms • housing • cleaning • parasitic control • farm management • Samples • time period • floor sampling technique • fig.1 farrowing pen. Farm 1 • fig.2 finishing pen. Farm 1 • analysis of floor samples • pig sampling [rectal] technique • analysis of pig samples • statistics • Materials used • Slaked lime • Stalosan F • Handling the disinfectant materials • Morphology of Ascaris eggs • Results • Farm 1 • Rectal samples - sows • Floor samples - farrowing pen • Floor samples - finishing pen, Aug 98 • Rectal samples - finishing pen 12/10 and 2/11/98 • Floor samples - finishing pen - Nov 1998; control, lime, Stalosan F • Farm 2 • Floor samples in 6 houses • Black Ascaris eggs - microphotos of 'black' Asc.eggs • Milk spots • Discussion • Conclusion • Summary • Bibliograph
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