Week Behavior SEPARATE TOGETHER1 P-value 1 Interactive 0.0120 ± 0.00244 0.00413 ± 0.00178 0.0230 2 Udder activity 0.172 ± 0.0065 0.210 ± 0.00818 0.0020 3 Lying down 0.528 ± 0.0110 0.653 ± 0.0107 < 0.0001   Udder activity 0.262 ± 0.00914 0.166 ± 0.00792 < 0.0001   Interactive 0.0414 ± 0.00392 0.0249 ± 0.00330 0.0052 4 Lying down 0.457 ± 0.00824 0.588 ± 0.00914 < 0.0001   Udder activity 0.200 ± 0.00644 0.166 ± 0.00678 0.0005   Interactive 0.0861 ± 0.00438 0.0568 ± 0.00413 < 0.0001   Walking 0.179 ± 0.00620 0.125 ± 0.00612 < 0.0001   Isolated 0.00505 ± 0.00114 0.00936 ± 0.00167 0.0427   Postures 0.0735 ± 0.00427 0.0477 ± 0.00380 0.0004

Table 3: Behavioral data per week in experiment 1, presented as means � S.E.M. Only behavioral categories which differ significantly (P < 0.05) are shown. Means and S.E.M. are from the non-transformed data. Significant differences were obtained after analysis of the dichotomized data.