TABLE 6.

Effect of fumarate on methane production in rumen contents from conventional lambs C1 and C2 and from meroxenic lamb M5 containing M. wolinii

Lamb age (mo)Incubation time (h)Methane production (μmoles/bottle)a
Lamb M5Lambs C1 and C2
No fumarate18.7 mM fumarate37.4 mM fumarateNo fumarate18.7 mM fumarate37.4 mM fumarate
118746672 (10)633 (15)1,041971 (7)857 (18)
121,106884 (11)735 (22)1,1601,134 (2)1,001 (14)
241,5471,268 (12)1,180 (24)1,6101,567 (3)1,425 (12)
1581,2401,130 (11)NDb1,4531,380 (5)1,333 (8)
121,5301,383 (10)ND1,6701,576 (6)1,556 (7)
241,8601,675 (10)ND1,9401,801 (7)1,798 (7)
188NDNDND1,3551,297 (4)1,282 (5)
12NDNDND1,7621,633 (7)1,655 (6)
24NDNDND2,0061,788 (11)1,750 (13)
  • a One sample per animal was used. The values in parentheses are the percent decreases in methane production.

  • b ND, not determined.