Merchán, M. Plaza, I. Nieto, J. Plaza, J. Abecia, J.A. Palacios, C. Densitometric analysis of GnRH and IBA1 immunocytochemistry in the basal ventromedial hypothalamus of the ewe 1879-3231] 10.1016/j.theriogenology.2024.07.012 2024 2024