Abstract: The disclosure pertains to a composition comprising mycelium of Agaricus Blazei Murill and an agent-affecting bacteria belonging to Enterobacteriaceae. The composition has a positive effect on the shedding of bacteria of the Enterobacteriaceae, in particular, of Salmonella and/or Escherichia. Moreover, the composition is effective against resistant bacteria of the Enterobacteriaceae.

Abstract: A method of controlling the presence of bacteria that belong to the group of enterobacteriaceae, for example, Salmonella and/or Escherichia species, in a monogastric animal, by feeding the monogastric animal with a feed material that comprises mycelium of Agaricus Blazei Murill (ABM mycelium), e.g., grown on a grain substrate.

Abstract: A new animal feed comprising Agaricus blazei Murill (ABM) mycelium and one or more C1-C16 organic acids is disclosed. The disclosure also pertains to a composition comprising Agaricus blazei Murill (ABM) mycelium and one or more C1-C16 organic acids, to a corresponding kit-of-parts, to a method to feed an animal by providing feed to the animal comprising Agaricus blazei Murill mycelium and one or more C1-C16 organic acids, and to a method to provide animal feed by mixing Agaricus blazei Murill mycelium and one or more C1-C16 organic acids with protein and/or carbohydrates and/or fats to provide the feed.