Pruitt, R.J.; Corah, L.R.; Simms, D.D.; Spire, M.F.
(Kansas State University. Agricultural Experiment Station, 1982)
In six trials involving 486 heifers and 23 bulls, we studied factors
affecting pregnancy rates of estrus-synchronized heifers mated naturally
and evaluated indicators of bull fertility. Heavier heifers and those in
fleshier ...