Cell-mediated transfer of immune protection factors to newborn calves Lyudmila Proskurina, Elena Enns, Margarita Simakova, Natalia Repsh and Dmitriy Zamaratskiy E3S Web Conf., 203 (2020) 01030 Published online: 05 November 2020 DOI: 10.1051/e3sconf/202020301030