Proper management can control costly parasite
US - On their own, large roundworms can inflict substantial harm on pig performance and a producer’s bottom line. However, new research shows the negative effects of roundworms can go much further, actually reducing the ability of a pig’s immune system to fight viral and bacterial pathogens that cause diseases such as PRRS, swine influenza and ileitis – leaving today’s pigs more vulnerable than many producers and veterinarians realize.