Probiotic potential of Escherichia coli ŽP for the gut microbiota of chickens Irina Maslennikova, Julia Gizatullina, Elizaveta Afanasievskaya, Marjanca Starčič Erjavec and Marina Kuznetsova E3S Web of Conf., 222 (2020) 03021 Published online: 22 December 2020 DOI: 10.1051/e3sconf/202022203021