Effect of season on ovulation response in ewes after receiving gonadotropin PMSG

animal embryos application rates brebis corps jaune corpus luteum dose d'application embriones animales embryon animal ewes histologie histology microscopia microscopie microscopy necropsie oestrus synchronization ovaire ovaries ovarios oveja oviducte oviductos oviducts ovulation postmortem examination seasonal variation synchronisation de l'oestrus utero uterus