Category

Control

Diet 1

Diet 2

Diet 3

Diet 4

P (Sig.)

Mean

Se

Mean

Se

Mean

Se

Mean

Se

Mean

Se

CH₄/DM

(l/kg/day)

91.57^a

0.91

83.82^bc

0.71

82.58^c

0.91

78.08^de

0.76

78.34^e

0.62

0.000

CH₄/OM (l/kg/day)

229.19^a

1.49

219.25^b

2.12

215.71^ce

0.83

201.49^d

2.14

211.67^e

1.09

0.000

CH₄/NDF (l/kg/day)

147.17^a

0.43

138.81^bc

1.26

137.44^c

0.83

126.54^d

1.10

131.70^e

0.82

0.000

CH₄/ADF (l/kg/day)

315.98^a

2.30

285.22^ce

0.94

287.09^c

2.78

260.36^d

0.59

276.65^e

2.06

0.000