Genetic parameters for lactation traits of milking ewes: protein content and composition, fat, somatic cells and individual laboratory cheese yield Med. Houcine Othmane, Juan Antonio Carriedo, Fermin San Primitivo and Luis Fernando De la FuenteGenet. Sel. Evol., 34 5 (2002) 581-596DOI: https://doi.org/10.1051/gse:2002024