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. Author manuscript; available in PMC: 2019 Jan 29.
Published in final edited form as: J Dairy Sci. 2017 Jul 12;100(9):7246–7261. doi: 10.3168/jds.2017-12647

Table 4.

Rumen VFA from Holstein dairy cattle fed diets with either a high RDP:RUP ratio (RDP) or low RDP:RUP ratio (RUP)

Treatment
 P-value
Item RDP RUP SED1 Treatment Period
Acetate (mmol/L)  19.9  21.9   0.86   0.60   0.13
  Acetate (% of total)  59.3  65.4   5.10   0.89   0.55
Butyrate (mmol/L)   3.34   3.91   0.24   0.64   0.27
  Butyrate (% of total)  10.9  10.8   0.85   0.91   0.27
Propionate (mmol/L)   6.96   8.05   0.45   0.06   0.39
  Propionate (% of total)  19.7  18.1   3.50   0.63   0.64
Acetate:propionate ratio   2.85   2.76   0.06   0.22   0.17
Total VFA (mmol/L)  35.1  33.9   2.18   0.76   0.60
1

SE = standard error of the difference.