Genetic variability of the length of postpartum anoestrus in Charolais cows and its relationship with age at puberty Marie-Madeleine Mialon, Gilles Renand, Daniel Krauss and François Ménissier Genet. Sel. Evol., 32 4 (2000) 403-414 DOI: 10.1051/gse:2000127