TABLE 7.

Propionate production from fumarate added to rumen contents from meroxenic lambs M1 and M2 lacking methanogens

Lamb (age)Incubation time (h)In vitro propionate production (μmoles/bottle)a
18.7 mM fumarate37.4 mM fumarate
ExpectedMeasuredExpectedMeasured
M1 (15 mo)8852500 (59)1,316640 (49)
12870612 (70)1,566880 (56)
24574660 (113)8061,180 (146)
M1 (18 mo)8756544 (72)1,180508 (43)
12810568 (70)1,460668 (46)
24538840 (156)7581,360 (178)
M2 (15 mo)8852488 (57)1,316440 (33)
12870630 (72)1,560780 (50)
24574900 (157)806960 (119)
  • a The values are means of two samples. The values in parentheses are the amounts of measured propionate expressed as a percentage of the expected amount of propionate.