Anyone involved in cattle production is aware of the danger of internal parasites in cattle. Internal parasites, such as lung worms and coccidia, live in the gastro-intestinal tracts of cattle. They will cause decreased production and in some cases even death.
Through proper management you can get this parasites under control. The thing to remember is that cattle internal parasite control is not a once-a-year thought that only occurs before spring grazing. The different types of parasites will emerge at different times of the year so your management plan must be year round.