Analysis of laying traits in first cycle geese in two production systems Jean-Michel Brun, Isabelle Delaunay, Nadine Sellier, Bernard Alletru, Roger Rouvier and Michèle Tixier-BoichardAnim. Res., 52 2 (2003) 125-140DOI: https://doi.org/10.1051/animres:2003010