TY - CPAPER AU - Tom Petznick, DVM TI - Biosecurity non-negotiables: Breeding stock T2 - AASV Annual Meeting DP - American Association of Swine Veterinarians DB - AASV Swine Information Library UR - https://www.aasv.org/library/swineinfo/ PY - 2011 DA - 2011/03/02 L1 - https://www.aasv.org/library/swineinfo/Content/AASV/2011/525.pdf SE - PRRS Update ER -