TY - CPAPER AU - C. Nathues, E. Janssen, A. Duengelhoef, H. Nathues, E. grosse Beilage TI - Cross-sectional study on risk factors for Porcine Reproductive & Respiratory Syndrome (PRRS) sow herd instability in German breeding herds T2 - International Pig Veterinary Society Congress DP - American Association of Swine Veterinarians DB - AASV Swine Information Library UR - https://www.aasv.org/library/swineinfo/ PY - 2016 DA - 2016/06/07 L1 - https://www.aasv.org/library/swineinfo/Content/IPVS/2016/Poster/569_PO-PW1-154.pdf SE - Virology & Viral Diseases ER -