Effect of probiotic and asparaginate on the growth of calves and chickens Olga Tyukavkina, Stanislav Plavinsky, Igor Tatarenko, Lyubov Perepelkina and Viktor Samuylo E3S Web Conf., 203 (2020) 01019 Published online: 05 November 2020 DOI: 10.1051/e3sconf/202020301019