Table 5.
Effect of carbohydrate sources and cotton seed meal levels on volatile fatty acid concentration in rumen fluid
| CC1
|
CR
|
SEM | Significance2
|
||||||
|---|---|---|---|---|---|---|---|---|---|
| LCM | HCM | LCM | HCM | CS | CM | I | |||
| Total VFA, mmol/L | |||||||||
| h-post feeding | 0 | 90.8 | 93.7 | 95.4 | 97.1 | 1.24 | ns | ns | ns |
| 4 | 91.7 | 96.7 | 96.8 | 98.8 | 2.04 | ns | ns | ns | |
| mean | 91.3 | 94.2 | 96.1 | 98.0 | 1.40 | ns | * | ns | |
| --------------------- mol/100 mol --------------------- | |||||||||
| C2, h-post feeding | 0 | 68.6 | 71.9 | 71.6 | 70.2 | 0.75 | ns | ns | ns |
| 4 | 68.1 | 70.4 | 70.2 | 71.5 | 0.87 | ns | ns | ns | |
| mean | 68.4 | 71.2 | 70.9 | 70.9 | 0.57 | ns | ns | ns | |
| C3, h-post feeding | 0 | 22.1 | 19.1 | 19.4 | 21.1 | 0.50 | ns | ns | ns |
| 4 | 21.9 | 20.7 | 20.9 | 20.1 | 0.62 | ns | ns | ns | |
| mean | 22.0 | 19.9 | 20.3 | 20.6 | 0.46 | ns | ns | ns | |
| C4, h-post feeding | 0 | 9.2 | 8.9 | 9.0 | 8.7 | 0.19 | ns | ns | ns |
| 4 | 9.7 | 9.0 | 8.9 | 8.4 | 0.21 | * | ns | ns | |
| mean | 9.5 | 8.9 | 9.0 | 8.6 | 0.20 | ns | ns | ns | |
| C2:C3, h-post feeding | 0 | 2.7 | 3.3 | 3.7 | 3.3 | 0.31 | * | ns | ns |
| 4 | 3.2 | 3.5 | 3.4 | 3.6 | 0.15 | ns | ns | ns | |
| mean | 3.0 | 3.4 | 3.6 | 3.5 | 0.10 | ns | ns | ns | |
1
CC = Cassava chip, CR3:1 = Cassava chip+rice bran 3:1, LCM = Low cotton seed meal, HCM = High cotton seed meal.
2
CS = Energy sources, CM = Cotton seed meal levels, I = ES×CM interaction.
*
p<0.05, ns = Non-significant difference, SEM = Standard error of the means.