Rumen parameters | Sample collection hour* | Treatments | SEM |
---|
T1 | T2 | T3 | T4 |
---|
Rumen pH | 0 | 7.1 | 7.1 | 7.1 | 7.0 | 0.07 |
4 | 6.8b | 6.8b | 6.8b | 6.9a | 0.04 |
8 | 6.7b | 6.8ab | 6.9a | 6.8ab | 0.06 |
NH3-N (mg/L) | 0 | 16.5 | 17.3 | 21.1 | 17.0 | 2.94 |
 | 4 | 13.4b | 26.0ab | 29.2a | 26.4ab | 3.45 |
 | 8 | 11.2 | 17.1 | 22.2 | 19.5 | 4.12 |
- a,bMeans within a row with different superscripts differ significantly (P < 0.05); SEM = standard error of the mean; *sample collection hours = Right before the morning meal or 0 hour (0), 4 hours (4) and 8 hours (8) after the morning meal; MFLH = Millettia ferruginea leaf hay; T1 = sole natural pasture grass hay fed ad libitum; T2 = 150 g MFLH + natural pasture grass hay fed ad libitum; T3 = 300 g MFLH + natural pasture grass hay fed ad libitum; T4 = 450 g MFLH + natural pasture grass hay fed ad libitum.