In the second of two articles on parasitic diseases, a swine specialist reviews four parasitic diseases that, though reduced, remain of clinical and economic importance
by S. ERNEST SANFORD
I’ll start by saying that the move to total indoor, confinement-rearing of pigs has reduced the prevalence of most internal parasites in our domestic pig population. However, unlike the external parasites, which are almost all gone and definitely miniaturized in importance, most internal parasites are still present and important in our pigs.
The internal parasites that I will discuss here include: round worms (Ascariasis); nodular worms (Oesophagostomiasis); lung worms (Metastrongylosis); and whip worms (Trichuriasis).