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Three experiments were conducted to investigate the ischiorectal fossa (IRF) as a route for the administration of prostaglandin F (dinoprost) in cattle. In Experiment 1, 21 nonlactating Holstein cows were given 100 µg of gonadotropin releasing hormone (GnRH), intramuscularly (IM), and, 7 d later, ...

Colazo, M. G.; Martínez, M. F.; Kastelic, J. P.; Mapletoft, R. J.; Carruthers, T. D.
Canadian Veterinary Medical Association, Ottawa, Canada
Canadian Veterinary Journal, 2002, 43, 7, pp 535-541