TY - CPAPER AU - Alejandro Alzina TI - Lifetime preweaning performance of sows in four farms of Yucatan Mexico. 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/Posters/441.pdf SE - Management -- Records and record analysis ER -