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Table 5 In vitro ruminal fermentation metabolites of complete feed block (CFB)

From: In vitro rumen fermentation kinetics, metabolite production, methane and substrate degradability of polyphenol rich plant leaves and their component complete feed blocks

Attributes Complete feed block
CFB1 CFB2 CFB3 SEM Significance (P value)
Total N (mg/dL) 103b 91.3c 115a 1.52 < 0.001
Ammonia N (mg/dL) 18.1b 20.8a 17.8b 0.209 < 0.001
TCA precipitable N (mg/dL) 78.8a 44.6c 70.3b 1.67 < 0.001
Acetic acid (mM/L) 29.8a 33.6a 17.9b 1.73 < 0.001
Propionic acid (mM/L) 6.53a 7.44a 3.47b 0.351 < 0.001
Isobutyric acid (mM/L) 0.95a 1.00a 0.37b 0.029 < 0.001
Butyric acid (mM/L) 4.19b 5.03a 2.50c 0.179 < 0.001
Isovaleric acid (mM/L) 0.89b 1.09a 0.29c 0.029 < 0.001
Valeric acid (mM/L) 0.41b 0.45b 0.95a 0.041 < 0.001
Total VFA (mM/L) 42.8a 48.6a 25.5b 2.2 < 0.001
Branch-chain fatty acids (mM/L) 2.24b 2.54a 1.61c 0.063 < 0.001
Acetate: propionate ratio 4.54b 4.54b 5.13a 0.148 0.047
Nonglucogenic: glucogenic VFA ratio 4.59 4.64 4.82 0.108 0.38
  1. Means bearing different superscript (a, b, c) differ significantly
  2. TCA Trichloroaceticic acid, VFA Volatile fatty acids
  3. CFB1 Concentrate mixture + Vigna sinensis hay (70:30), CFB2 Concentrate mixture + Acacia nilotica leaves (70:30), CFB3 Concentrate mixture + Ziziphus nummularia leaves (70:30)