Kuhl, G.; Goehring, T.; Ritter, B.; Laudert, S.; McCully, W.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1987)
Several spaying and ovarian autografting methods were tested in three field
trials with 658 grazing heifers. None of the techniques examined were found to
have a beneficial effect on heifer gains compared to intact ...