Quantitative trait loci for fertility traits in Finnish Ayrshire cattle Nina F. Schulman, Goutam Sahana, Mogens S. Lund, Sirja M. Viitala and Johanna H. Vilkki Genet. Sel. Evol., 40 2 (2008) 195-214 Published online: 27 February 2008 DOI: 10.1051/gse:2007044