|
Parameters
|
CON
|
CAL
|
SEM
|
P-value
|
|---|
|
Body weigth, kg
|
|
Inital BW
|
19.3
|
19.7
|
0.66
|
0.70
|
|
Final BW
|
25.1
|
26.8
|
0.53
|
0.13
|
|
ADG, g/d
|
167
|
196
|
9.45
|
0.14
|
|
Total tract digestibility, g/kg
|
|
Dry matter
|
630
|
649
|
8.27
|
0.26
|
|
Organic matter
|
607
|
604
|
6.80
|
0.82
|
|
Crude protein
|
604
|
601
|
7.71
|
0.85
|
|
Neutral detergent fiber
|
577
|
578
|
13.3
|
0.97
|
|
Methane emission
|
|
CH4, L/d
|
20.0
|
15.9
|
0.11
|
< 0.01
|
|
CO2, L/d
|
307
|
274
|
2.24
|
< 0.01
|
|
CH4/CO2, mL/L
|
63.6
|
54.4
|
0.26
|
< 0.01
|
|
CH4, L/kg DM intake
|
29.9
|
21.1
|
1.44
|
< 0.01
|
|
CH4, L/kg OM intake
|
32.4
|
23.3
|
1.49
|
< 0.01
|
|
CH4, L/kg BW
|
1.02
|
0.82
|
0.05
|
0.02
|
|
Rumen fermentation
|
|
pH
|
6.22
|
6.35
|
0.04
|
0.05
|
|
NH3, mmol/L
|
9.92
|
15.5
|
0.64
|
0.09
|
|
Total VFA, mmol/L
|
112
|
118
|
3.70
|
0.48
|
|
VFA, molar percent
|
|
Acetate (A)
|
69.9
|
68.1
|
0.51
|
0.07
|
|
Propionate (P)
|
17.7
|
19.8
|
0.46
|
0.01
|
|
Isobutyrate
|
0.95
|
0.79
|
0.05
|
0.08
|
|
Butyrate
|
9.92
|
10.2
|
0.30
|
0.70
|
|
Isovalerate
|
0.47
|
0.23
|
0.05
|
< 0.01
|
|
Valerate
|
1.06
|
0.86
|
0.05
|
0.04
|
|
A/P ratio
|
3.96
|
3.46
|
0.11
|
0.01
|
- CON control diet, CAL Coleus amboinicus Lour. diet, SEM standard error of means, DM dry matter, OM organic matter, BW body weight, ADG average daily gain, VFA volatile fatty acids
- Means in the same row indicate significant differences at P < 0.05 and tended to significant at P < 0.10
