Research Article

Response of Fumaric Acid Addition on Methanogenesis, Rumen Fermentation, and Dry Matter Degradability in Diets Containing Wheat Straw and Sorghum or Berseem as Roughage Source

Table 5

Supplementation effect of fumaric acid on rumen fermentation in berseem-containing diets.

Berseem-containing dietsDoseTVFA  (mM)Acetate  (mM)Propionate  (mM)Butyrate  (mM)

HFD (80R : 20C)051.536.110.05.4
553.234.813.74.7
1058.836.817.34.8
1561.337.519.14.7

MFD (50R : 50C)057.040.010.66.5
555.735.515.24.9
1060.538.116.75.7
1559.535.319.15.2

LFD (20R : 80C)058.239.611.07.6
554.035.413.45.2
1065.539.220.55.9
1573.342.724.16.5

SEMDiet  (D)1.42NS0.490.15
Treatment  (T)1.64NS0.560.18
D × TNSNS0.98NS

HFD: high-fiber diet; MFD: medium-fiber diet; LFD: low-fiber diet; R: roughage; C: concentrate; TVFA: total volatile fatty acids (mM); H: hydrogen; SEM: standard error of means.