Repeated regrouping of pair-housed heifers around puberty affects their behavioural and HPA axis reactivities Satu Raussi, Alain Boissy, Stéphane Andanson, Jutta Kaihilahti, Philippe Pradel and Isabelle VeissierAnim. Res., 55 2 (2006) 131-144DOI: https://doi.org/10.1051/animres:2006004