Abstract: This application provides an agent or a composition comprising viable cells or dead cells of the Lactobacillus plantarum strain (International Accession No. NITE BP-03418) as an active ingredient for preventing enteritis or necrotic enteritis, for suppressing inflammation due to enteritis or necrotic enteritis, for suppressing decreased feed conversion efficiency or body weight loss, or for suppressing infection with enteric viruses in a bird (for example, a chicken), or a method that comprises feeding a bird (for example, a chicken) with the agent or the composition.

Abstract: This application provides a method for culturing Lactobacillus plantarum, which comprises culturing Lactobacillus plantarum in a medium comprising molasses, a yeast extract and sucrose at a temperature from 32° C. to 37° C.

Abstract: The present application provides: a microbial material for agricultural use characterized by containing, as an active ingredient, Bacillus subtilis C-3102 strain (FERM BP-1096) that is capable of promoting the growth of crops and/or increasing the yield of crops, or a variant thereof that has an ability equivalent thereto; and a method for cultivating crops characterized by comprising cultivating the crops using a soil or medium that contains the microbial material.