Method of inhibiting the growth of Salmonella in a chicken, comprising administering at least one strain of bacteriophage that lyses at least one Salmonella serovar to a chicken in need thereof, wherein the at least one strain of bacteriophage is a strain selected from PCM F/00069 (strain 8sent1748), PCM F/00070 (strain 8sent65) and PCM F/00071 (strain 3sent1).