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Table 2 The ruminal pH and volatile fatty acids concentrations in the rumen of beef steers fed different diets

From: Treatment of corn with lactic acid or hydrochloric acid modulates the rumen and plasma metabolic profiles as well as inflammatory responses in beef steers

Items Diet1 P-value
LA HA CON
Ruminal pH 6.74 ± 0.16A 6.73 ± 0.17A 6.22 ± 0.07B 0.0008
Acetate (mmol/L) 35.68 ± 2.79A 37.58 ± 5.15A 52.89 ± 9.03B 0.0066
Propionate (mmol/L) 26.08 ± 2.83 27.92 ± 9.41 28.46 ± 6.79 0.8787
Butyrate (mmol/L) 7.38 ± 0.68 7.11 ± 1.94 9.27 ± 1.70 0.1532
Iso-butyrate (mmol/L) 0.64 ± 0.10a 0.59 ± 0.03a 0.85 ± 0.20b 0.0408
Iso-valerate (mmol/L) 1.40 ± 0.17A 1.74 ± 0.51A 2.75 ± 0.47B 0.0033
Valerate (mmol/L) 0.61 ± 0.14 0.66 ± 0.20 0.91 ± 0.28 0.1627
  1. A-BMeans within a row differ (P < 0.01)
  2. a-bMeans within a row differ (P < 0.05)
  3. 1LA is the treatment diet based on corn grain steeped for 48 h in an equal quantity of tap water containing 1% lactic acid (wt/vol), HA is the treatment diet based ong corn grain steeped for 48 h in an equal quantity of tap water containing 1% hydrochloric acid (wt/vol), and CON is the control diet containing corn grain steeped for 48 h in an equal quantity of tap water