Efficacy of vaccination of Ingelvac® PRRS MLV in pigs in Japanese farrow-to-finish farm

The key of succession of PRRS vaccination is that confirming by monitoring that there is no vertical/horizontal transmission of PRRS virus before weaning and when the field exposure of PRRS virus was occurred.


Article by:

H. Ishikawa, Y. Watanabe, Y. Kazuno, S. Ishizeki. APVS. 2017

Porcine Reproductive and Respiratory Syndrome (PRRS) virus is the most problematic swine disease worldwide. PRRS causes reproductive failure in breeding herds and respiratory disease in piglets. This disease was first reported in the U.S.A in 1987 and has been reported in many different countries.

In Japan, PRRS was first reported in 1989. It has now spread throughout the country, causing enormous economic damage estimated at 2.8 billion JPY (US$ 250 million) per year in Japan.

In this study, improvement of post weaning mortality and average daily gain (ADG) were evaluated by using of Ingelvac ® PRRS MLV (Boehringer Ingelheim Vetmedica Japan Co., Ltd.) in a Japanese farm.