Evans, E.I.; Dritz, S.S.; Stevenson, J.S.; Davis, D.L.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2000)
We used 66 pregnant sows to compare serum progesterone concentrations following a single injection of either saline or one
of two prostaglandin F2a products approved
for use in swine. Pregnant sows in a commercial swine ...