Likelihood of pregnancy after embryo transfer is reduced in recipient mares with a short preceding oestrus.
Juan Cuervo-ArangoA N ClaesM Ruijter-VillaniT A StoutPublished in: Equine veterinary journal (2017)
The likelihood of pregnancy in recipient mares is positively correlated with the duration of endometrial oedema during the oestrus preceding ET. This suggests a role for an adequate duration of oestrogenic priming during oestrus on uterine receptivity and embryo survival.