Ultrastructural characteristics of the anterior pituitary gland of cattle in the definitive period of postnatal ontogenesisA.N. Khasaev, Z.M. Dzhambulatov, M.M. Zubairova, F.G. Astarkhanov and N.M. GadzhievE3S Web Conf., 254 (2021) 09013DOI: https://doi.org/10.1051/e3sconf/202125409013