Interpretive Summary: Evaluation of long-term supplementation of Bacillus subtilis direct-fed microbial and enzymatically hydrolyzed yeast cell culture product used alone or in combination on clostridia, Clostridium perfringens, Escherichai coli, and Salmonella prevalence in beef steers
By: Erin R DeHaan, Jesse Thompson, Warren C Rusche, Mackenzie de Jesus, Elliot Block, Tom Rehberger, Zachary K Smith
The objective of this research was to determine the influence of long-term supplementation (258 d) of a direct-fed microbial (DFM) and/or yeast cell wall (YCW) product on bacterial populations in beef steers. Collectively, there were no appreciable treatment influences on bacterial populations. These data further indicate a low pathogenic bacterial challenge at the trial site, which could further explain the reasons for little differences. The DFM and YCW used alone or in combination cannot be expected to show productive benefits when animals are relatively unstressed with a low pathogenic bacterial challenge.
Read the full article in the Journal of Animal Science.