13,14-Dihydro-15-Keto prostaglandin F2a release in response to oxytocin challenge early post-partum in anoestrous nelore cows submitted to temporary calf removal and progesterone priming - Satrapa, R. A.; Pinheiro, V. G.; Ereno, R. L.; Membrive, Claudia Maria Bertan; Piagentini, M.; Binelli, Mario; Barros, C. M. (Reproduction in Domestic Animals, 2010)