TY - CPAPER AU - Danny Burns TI - A successful introduction of PRRS negative gilts into a PRRS positive 5,000 head commercial unit over a two year period T2 - AASV Annual Meeting DP - American Association of Swine Veterinarians DB - AASV Swine Information Library UR - https://www.aasv.org/library/swineinfo/ PY - 2001 DA - 2001/03/02 L1 - https://www.aasv.org/library/swineinfo/Content/AASV/2001/193.PDF ER -