Increasing the reproductive function of Large White boars G.S. Pokhodnya, A.A. Novikov, Yu.P. Breslavets, S.M. Mirzaev and A.Yu. Kalinin E3S Web of Conf., 222 (2020) 02009 Published online: 22 December 2020 DOI: 10.1051/e3sconf/202022202009