Table 4.
Effect of SC supplementation on neutral detergent fiber (NDF) degradation characteristics of alfalfa pellets in steers fed diets with different concentrate-to-forage ratios
|
Item |
CTFR |
SEM |
SC |
SEM |
P-value |
Probability3 |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30:70 | 50:50 | 70:30 | 90:10 | N1 | Y2 | CTFR | SC | CTFR × SC | Linear | Quadratic | Cubic | |||
|
a, % |
2.32 |
6.36 |
2.70 |
2.99 |
0.74 |
3.22 |
3.96 |
0.52 |
<0.01 |
0.32 |
0.13 |
0.67 |
0.03 |
<0.01 |
|
b, % |
46.77 |
44.76 |
49.29 |
49.69 |
0.92 |
48.11 |
47.15 |
0.65 |
<0.01 |
0.30 |
0.35 |
<0.01 |
0.24 |
0.02 |
|
c, %/h |
3.40 |
2.77 |
2.55 |
1.83 |
0.11 |
2.52 |
2.76 |
0.08 |
<0.01 |
0.03 |
0.04 |
<0.01 |
0.95 |
0.24 |
| ED, % | 26.89 | 27.35 | 25.28 | 22.36 | 0.44 | 24.70 | 26.25 | 0.31 | <0.01 | <0.01 | 0.56 | <0.01 | <0.01 | 0.47 |
1N: without yeast supplementation;
2Y: with yeast supplementation;
3Linear indicates linear effect of dietary CTFR; quadratic indicates a quadratic effect of dietary CTFR; cubic indicates a cubic effect of dietary CTFR.