Figure 2.

Nosing behaviors were compared across four time points using least square means regression analysis. Nosing behaviors were recorded in duration (seconds (s)) then log₁₀ + 1 transformed. The four time points are: immediately after mix, and 3, 6, 9 weeks (wk) after mix. Observations at 6 wk were made after pigs were moved to a new pen with their group. Nosing is presented as total duration (s) of each type of nosing (nose-head, nose-body, nose-nose) depending on what part of the body the initiator pig’s nose was touching. Errors bars represent the 95% confidence interval of the least square means. a–c: Bars with different letters denote time periods that showed different frequencies of that behavior (p < 0.05, Tukey, HSD adjusted).