![Figure 2. Use of quarantine in the 69 herds.](https://www.pig333.com/3tres3_common/art/pig333/12671/home.jpg?w=650&h=366&ho=1&ts=1653979446)
Introduction of replacement gilts to PRRS-positive sow herds
A study was performed including 69 PRRS-positive sow herds with the aim of comparing the use of PRRSV MLV and quarantine facilities with the PRRSV status of replacement gilts at first insemination.