From: Effects of fumaric acid supplementation on methane production and rumen fermentation in goats fed diets varying in forage and concentrate particle size
Sieve size
Alfalfa hay
Corn
Chopped
Ground
Crushed
19.0Â mm
31.8
0.7
2.36Â mm
41.7
0
8.0Â mm
46.5
24.3
1.18Â mm
32.0
29.5
13.2
45.2
0.55Â mm
14.5
33.6
Pan
8.5
29.8
11.8
36.9