Stevenson, J. S.; Thompson, K. E.; Smith, J. F.; Hawkins, D. E.
(Kansas Agricultural Experiment Station and Cooperative Extension Service, 1997)
Two experiments were performed using the same treatments. All heifers received two injections of PGF[subscript]2alpha 14 days apart. Controls then were inseminated after detected estrus. Heifers assigned to the two ...