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 3

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

Sorghum containing dietsDoseTVFA  (mM)Acetate  (mM)Propionate  (mM)Butyrate  (mM)

HFD (80R : 20C)051.534.211.16.3
562.739.816.26.7
1063.038.718.16.3
1566.240.019.96.3

MFD (50R : 50C)061.840.414.57.0
558.838.515.35.0
1068.243.419.45.4
1571.542.222.17.2

LFD (20R : 80C)064.543.812.77.9
570.343.219.57.6
1071.042.421.57.1
1572.741.923.07.7

SEMDiet (D)1.040.690.450.19
Treatment (T)1.20NS0.520.22
D × TNS1.38NS0.04

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.