Association with litter size of new polymorphisms on ESR1 and ESR2 genes in a Chinese-European pig line Gloria Muñoz, Cristina Ovilo, Jordi Estellé, Luis Silió, Almudena Fernández and Carmen RodriguezGenet. Sel. Evol., 39 2 (2007) 195-206DOI: https://doi.org/10.1051/gse:2006042