Fig. 2

A schematic diagram of the significant linkages identified in the seven models between intrinsic (orange boxes), management (green box) and clinical (purple boxes) independent variables and the dependent (pink boxes) variables. The dependent variables were antibody level changes during the peri-weaning period (d − 14 to d14 relative to weaning at d 0) as reflected by changes in S/N ratio (for BHV-1), PP value (for BRSV, BCoV and BPI3V) or S/P ratio (for BHV-4, BVDV and H. somni)