QTL for resistance mastitis in cattle

Method for determining the resistance to mastitis in any bovine subject breeds RojaDanesa, Ayrshire, Swedish Red and White and Holstein, comprising detecting in a sample from said sujetobovino the presence or absence of at least one genetic marker that is linked with at least one rasgoindicativo mastitis resistance, wherein said at least one genetic marker is located in elcromosoma bovine BTA9 in the region flanked by and including the microsatelitespolimorficos markers C6orf93 and inra084, wherein the presence or absence of said at least indicative geneticoes resistance marker bovine mastitis said subject or offspring thereof.