TY - CPAPER AU - Main RG, Dritz SS, Tokach MD, et al TI - Effects of weaning age on postweaning belly-nosing behavior and umbilical lesions in a multi-site production system T2 - Journal of Swine Health and Production DP - American Association of Swine Veterinarians DB - AASV Swine Information Library UR - https://www.aasv.org/library/swineinfo/ PY - 2005 DA - 2005/09/01 L1 - https://www.aasv.org/library/swineinfo/Content/SHAP/2005/v13n5p259.pdf SE - Sept-Oct ER -