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Treatment schedule for the challenge study with Salmonella enterica on the specific pathogen-free chicks in experiment-1 and -2. After feeding the Bacillus subtilis C-3102-containing feeds on Day 0, S. enterica was administered to the chicks on day 7 (SE0). Body weights, infection rates, and histology of the liver, spleen, and cecum were subsequently analyzed according to the scheme.
