TABLE 2.

Concentrations of fermentation products before and after incubation of rumen, jejunal, and cecal samples with and without probiotics and without STEC strains

Digestive sampleProbioticIncubation time (h)pHConcn (mM) ofa:
Acetate + propionate + butyratedl-LactateEthanol
Rumen contentsNone05.6593.3 ± 4.82.4
244.96146.5 ± 2.430.26.6 ± 2.1
S. cerevisiae05.87106.8 ± 13.15.5 ± 1.93.4 ± 0.2
244.67156.8 ± 19.126.9 ± 0.758.9 ± 2.9
L. acidophilus05.65110.2 ± 2.57.7 ± 1.35.5 ± 4.3
245.42133.7 ± 5.255.0 ± 0.37.7
Jejunal contentsNone07.82
27.683.0 ± 0.28.8 ± 2.2
S. cerevisiae07.324.7 ± 0.125.4 ± 0.8
27.3823.1 ± 1.527.9 ± 0.3
L. acidophilus07.822.3 ± 0.115.024.5 ± 0.1
27.1314.2 ± 2.419.58.8 ± 0.3
Cecal contentsNone07.7231.5 ± 0.74.4 ± 0.4
87.7339.04.1 ± 0.1
S. cerevisiae07.7229.8 ± 0.53.5 ± 1.9
87.7040.3 ± 0.28.2 ± 1.24.7 ± 0.6
L. acidophilus07.6029.9 ± 0.1ND3.8 ± 0.1
87.6833.1 ± 0.1ND3.7 ± 0.1
  • a The values are means ± standard errors of the means for at least three determinations. —, not detected; ND, not done.