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Shannon diversity index of cecal microbial communities of control cattle (CON) and cattle fed 0.050 g of MicroSaf 4C 40 daily (TRT; supplementation of 2-billion colony forming units of a combination of four species of Bacillus daily). Shannon diversity index differed between CON and TRT groups (P = 0.005, H = 8.003, N = 24).
