Figure 2

Number of chewing cycles during eating. Number of chewing cycles during eating in 10 cows (group B) from 10 days before to 10 days after parturition (medians, minimum, maximum). The yellow area indicates the reference interval (13`101 to 25`515 chewing cycles) calculated as the mean ± 2 sd (19`808 ± 3`353.5 chewing cycles) of the recordings in 10 control cows (group A). */** compared with day 0 (parturition): P < 0.05/P < 0.01 (Bonferroni test).