Utter, S.D.Houghton, P.L.Corah, L.R.Simms, D.D.Spire, M.F.Butine, M.D.2010-09-172010-09-172010-09-17http://hdl.handle.net/2097/4984Commercial beef heifers (n=1863) from 16 different sources were used to evaluate the influence of management practices and biological traits on first-service conception and overall pregnancy rates. Frame score, initial weight, overall ADG, body condition score, reproductive tract score, source, AI technician, and AI sire significantly influenced first-service conception. Overall pregnancy rates were influenced by frame score, body weight, and ADG.BeefBeef heifersFirst-service conceptionPregnancy ratesConference paper