Nutrient digestibilities of a corn-soybean meal diet as influenced by Bacillus products fed to finishing swine.

Abstract

Twelve crossbred barrows (initial BW of 59.7 kg) were used in nutrient balance trials to investigate the influence of adding two Bacillus products (Biomate 2B and Pelletmate Livestock, Chr. Hansen's Biosytems) to a 14% CP corn-soybean meal diet (.64% lysine, .6% Ca and .5% P). A 3 x 3 Latin-square design with an extra period was used. Treatments were as follows: 1) basal diet; 2) basal + Biomate 2B (BAC1); and 3) basal + Pelletmate Livestock (BAC2). After a 7-d adaptation to metabolism crates, each 10-d period consisted of 5 d of diet adjustment followed by 4 d of total collection and 1 d for change-over. Both BAC1 and BAC2 were added at a level of .05% to supply approximately 3 million colony forming units per gram of diet. Pigs were fed twice daily at a daily rate of 3.2 to 3.5% of BW. Feeding BAC1 or BAC2 elevated (P < .001) fecal Bacillus spore counts at the end of each collection period, but the effect on number of coliforms and lactic acid bacteria was not as consistent; coliform counts tended to be decreased (P < .10) when BAC2 was fed, but not (P > .10) when BAC1 was fed. The number of lactic acid bacteria was increased (P < .05) when BAC1 was fed, but not (P > .10) when BAC2 was fed. Body weights were similar among all treatments for all periods. There was no carry-over or pretreatment effect (P = .50). Digestibility coefficients of DM, neutral detergent fiber, acid detergent fiber, ash, and N and retention of N were not affected (P = .40) by feeding Bacillus products.

The effect of probiotic BioPlus 2B® on growth performance, dry matter and nitrogen digestibility and slurry noxious gas emission in growing pigs

“…This indicates that the tendency for improved ADG may have occurred as a result of a significant improvement in the ADFI, but not in digestibility. Our results confirm the findings of Kornegay and Risley (1996), who evaluated the effects of two Bacillus products (Biomate2B ® , comprised of B. subtilis CH201 and B. licheniformis CH200 and Pelletmate Livestock ® , comprised of B. subtilis, B. licheniformis and Bacillus pumilus) in the diets of finishing pigs and found no impact on the digestibility of nutrients (DM and N). Conversely, Min et al (2004) reported that positive effects in the DM and N digestibilities were observed in nursery pigs fed diets that were supplemented with 0.04% BioPlus 2B ® .…”

Effect of dietary Bacillus subtilis on proportion of Bacteroidetes and Firmicutes in swine intestine and lipid metabolism

“…Similar findings have been reported in studies when probiotics were given to piglets (Choi et al, 2011) and growing-finishing pigs (Gebru et al, 2010;Meng et al, 2010). There are also reports that probiotics have no positive effects on ADG and feed conversion of pigs (Kornegay and Risley, 1996;Estienne and Hartsock, 2005); this may be caused by different probiotic strains used in the experiments. These results show the enormous potential of probiotics as green growth promoters in finishing pig production.…”

Effects of probiotics and selenium combination on the immune and blood cholesterol concentration of pigs

“…However, probiotics supplementation to piglets to improve growth performance has shown variable results, and the precise mode of action through which probiotics exert their positive influence remains uncertain (Turner et al, 2001). No difference in growth performance was observed for pigs fed diets with added Lactobacilli (Harper et al, 1983) or Bacilli (Kornegay and Risley, 1996). However, improved growth performance and reduced incidence of E. coli in faeces was noted when Lactobacilli or Bacillus spp.…”