HS

LS

SEM

P-value

CH₄^a, g/d

28.4

28.5

0.54

NS

CH₄/DMI, g/kg

14.1

13.8

0.36

NS

CH₄/OM intake, g/kg

15.4

15.1

0.39

NS

Ym, (CH₄/GEi)

4.2

4.0

0.11

NS

CH₄/milk, g/kg

11.7

13.2

0.42

0.03