TY - CPAPER AU - Michael Segal TI - Virginiamycin: Lack of interference with Lawsonia immunization, and improvement in feed efficiency. 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 - 2014 DA - 2014/06/01 L1 - https://www.aasv.org/library/swineinfo/Content/IPVS/2014/Oral/326.pdf SE - Immunology/Vaccine/Diagnosis ER -