Direct-fed microbials

Effects of a multistrain Bacillus spp. direct-fed microbial and protease combination at different doses on apparent ileal and total tract digestibility of nutrients in growing pigs fed corn–soybean meal–based diets – A combined analysis of two studies

Walsh, M. C., L. Payling, I. H. Kim, and H. H. Stein. 2017. Effects of a multistrain Bacillus spp. direct-fed microbial and protease combination at different doses on apparent ileal and total tract digestibility of nutrients in growing pigs fed corn–soybean meal–based diets – A combined analysis of two studies. J. Anim. Sci. 95(Suppl. 5):141 (Abstr.) Link to abstract (.pdf)

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Effects of a 3 strain Bacillus-based direct-fed microbial and dietary fiber concentration on growth performance and expression of genes related to absorption and metabolism of volatile fatty acids in weanling pigs

Jaworski, N. W., A. Owusu-Asiedu, M. C. Walsh, J. C. McCann, J. J. Loor, and H. H. Stein. 2017. Effects of a 3 strain Bacillus-based direct-fed microbial and dietary fiber concentration on growth performance and expression of genes related to absorption and metabolism of volatile fatty acids in weanling pigs. J. Anim. Sci 95:308-319. Link to abstract

Effect of a 3-Strain Bacillus-based direct-fed microbial on relative tissue gene expression in nursery and finishing pigs fed low- or high-fiber diets

Jaworski, N. W., M. C. Walsh, and H. H. Stein. 2016. Effect of a 3-Strain Bacillus-based direct-fed microbial on relative tissue gene expression in nursery and finishing pigs fed low- or high-fiber diets. J. Anim. Sci. 94(Suppl. 2):83 (Abstr.) Link to abstract (.pdf)

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Effects of fiber, a direct-fed microbial, and feeding duration on ileal and total tract digestibility of energy and nutrients by pigs

Jaworski, N. W., M. C. Walsh, and H. H. Stein. 2016. Effects of fiber, a direct-fed microbial, and feeding duration on ileal and total tract digestibility of energy and nutrients by pigs. J. Anim. Sci. 94(Suppl. 2):73-74 (Abstr.) Link to abstract (.pdf)

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Effect of a 3 strain Bacillus-based direct-fed microbial on growth performance and intestinal concentrations of volatile fatty acids in nursery pigs fed low- or high-fiber diets

Increasing the inclusion of dietary fiber in nursery pig diets may stimulate beneficial gut microbiota and reduce post-weaning diarrhea. However, the digestibility of nutrients and energy is decreased in high fiber diets. Nursery pigs fed diets high in fiber have been shown to have reduced ADFI and G:F.

Bacillus-based direct-fed microbials (DFM) secrete a large amount and a wide variety of fiber degrading enzymes. It is thought that feeding DFM may offset some of the negative effects of  a high fiber diet. Therefore, an experiment was conducted to test the hypothesis that addition of a Bacillus-based DFM will increase fermentation of dietary fiber and improve growth performance when fed to nursery pigs.

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Effect of a 3-strain Bacillus-based direct-fed microbial on growth performance and volatile fatty acid production in nursery pigs fed low or high fiber diets

Jaworski, N. W., A. Owusu-Asiedu, A. Awati, A. Thomas, and H. H. Stein. 2015. Effect of a 3-strain Bacillus-based direct-fed microbial on growth performance and volatile fatty acid production in nursery pigs fed low or high fiber diets. J. Anim. Sci. 93(Suppl. s3):856 (Abstr.) Link to abstract (.pdf)

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Effect of a 3-strain Bacillus-based direct-fed microbial on growth performance, volatile fatty acid production, carcass characteristics, and gastrointestinal tract weights in growing-finishing pigs fed low or high fiber diets

Jaworski, N. W., A. Owusu-Asiedu, A. Awati, A. Thomas, and H. H. Stein. 2015. Effect of a 3-strain Bacillus-based direct-fed microbial on growth performance, volatile fatty acid production, carcass characteristics, and gastrointestinal tract weights in growing-finishing pigs fed low or high fiber diets. J. Anim. Sci. 93(Suppl. s3):856 (Abstr.) Link to abstract (.pdf)

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Effect of Bacillus spp. direct-fed microbial supplementation on the nutrient digestibility by weanling pigs

Owusu-Asiedu, A., N. W. Jaworski, A. A. Awati, and H. H. Stein. 2014. Effect of Bacillus spp. direct-fed microbial supplementation on the nutrient digestibility by weanling pigs. J. Anim. Sci. 92(Suppl. 2):143 (Abstr.) Link to abstract (.pdf)

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Effect of Bacillus spp. direct-fed microbials on fecal VFA concentrations, growth performance, and carcass characteristics of growing-finishing pigs

Jaworski, N. W., A. Owusu-Asiedu, A. A. Awati, and H. H. Stein. 2014. Effect of Bacillus spp. direct-fed microbials on fecal VFA concentrations, growth performance, and carcass characteristics of growing-finishing pigs. J. Anim. Sci. 92(Suppl. 2):56 (Abstr.) Link to abstract (.pdf)

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