Purpose
It’s impossible to eliminate PRRSV without empty the pigs in the farm, that is why PRRS persistly breakout. In our previous trials, MIIP was found to assist the produce of IgA, which would block PRRS virus out of the mucosa layer and neutralize the virus. The PRRS ELISA antibody was declined without infection happened, the farm could free from PRRS. The purpose of this trial wanted to assess whether MIIP could help the farm free from PRRSV.
Objects
A PRRS ELISA antibody positive farm in Syuejia District, Tainan, Taiwan.
Condition
The PRRS ELISA antibody positive rates were 40% and 80% in 8-week-old pigs and 20-week-old pigs, respectively . MIIP was been added in the feed of whole farm for 3 months. Then, the serum of the pig with the same age were collected to detect the ELISA antibody titer.
Result

After 3 months of MIIP treatment, the positive rates in both of two objects were declined to 0%. It may be due to MIIP induced the specific IgA production, and ceased the invasion of virus from the pigs.
Conclusion
MIIP could capture the PRRS virus from the environment, and induced the generation of antibodies which block PRRS virus, as a result, the antibody titer became negative.