Factors influencing first-service
conception and overall pregnancy rates
in commercial beef heifers

Factors influencing first-service conception and overall pregnancy rates in commercial beef heifers

Utter, S.D.; Houghton, P.L.; Corah, L.R.; Simms, D.D.; Spire, M.F.; Butine, M.D.

Conference paper

Publication Date: 1994

Conference: Cattlemen's Day, 1994, Kansas State University, Manhattan, KS, March 4, 1994
Starting Page: 107, Ending Page: 110
Publisher: Kansas State University. Agricultural Experiment Station and Cooperative Extension Service

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Abstract:

Commercial 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.

Keywords: Beef; Beef heifers; First-service conception; Pregnancy rates

URL for this item: http://hdl.handle.net/2097/4984

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