I DENTIFICATION AND MANAGEMENT OF ALLELES IMPAIRING HEIFER FERTILITY WHILE OPTIMIZING GENETIC GAIN IN A NGUS CATTLE JF Taylor, DS Brown, MF Smith, RD Schnabel, SE Poock, JE Decker, FD Dailey, and DJ Patterson University of Missouri AL Van Eenennaam University of California, Davis MM Rolf Oklahoma State University BP Kinghorn University of New England, NSW, Australia MD MacNeil Miles City, MT USDA-NIFA Award #2013-68004-20364 Animal Genomics and Biotechnology Education Van Eenennaam BB 10/22/2014