The Effect of Synchronizing with the PGF2α hormone on the Estrus Activity of Madura CowsMuchamad Luthfi, Lukman Affandhy S, Sri Wahjuningsih, Gatot Ciptadi and Trinil SusilawatiBIO Web Conf., 88 (2024) 00029DOI: https://doi.org/10.1051/bioconf/20248800029