TY - CPAPER AU - Lee J. Johnston, BS., MS., PhD. and Antonio Renteria, DVM., SPS., MS. TI - Conducting trials in the breeding herd 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 - 2002 DA - 2002/09/01 L1 - https://www.aasv.org/library/swineinfo/Content/LEMAN/2002/2-18.pdf SE - Section II: Disease ER -