| a whole genome association analysis identifies loci associated with mycobacterium avium subsp. paratuberculosis infection status in us holstein cattle. | the purpose of this study was to identify loci associated with mycobacterium avium subspecies paratuberculosis (map) infection status in us holsteins using the illumina bovinesnp50 beadchip whole genome single nucleotide polymorphism (snp) assay. two hundred forty-five cows from dairies in new york, pennsylvania and vermont enrolled in longitudinal herd studies between january 1999 and november 2007 were assessed for the presence of map in both faecal and tissue samples. an animal was considered ... | 2009 | 19422364 |