TY - CPAPER AU - Pat Joyce TI - Economic impact of filtration as an intervention to prevent PRRS introductions: A case study of a 3200 farrow-to-finish system T2 - Allen D. Leman Swine Conference DP - American Association of Swine Veterinarians DB - AASV Swine Information Library UR - https://www.aasv.org/library/swineinfo/ PY - 2011 DA - 2011/09/01 L1 - https://www.aasv.org/library/swineinfo/Content/LEMAN/2011/145.pdf SE - Section IV: Production ER -