Table 5.
Effects of adding polyethylene glycol (PEG) to a steer ration containing high sorghum tannins on nutrient digestibility (%).
| Item | PEG, g/kg DM |
SEM |
P-value |
|||||
|---|---|---|---|---|---|---|---|---|
| 0.00 | 1.75 | 3.50 | 7.00 | T | L | Q | ||
| DM | 67.3 | 67.7 | 67.9 | 68.8 | 0.48 | 0.179 | 0.140 | 0.735 |
| OM | 69.3 | 69.4 | 69.8 | 70.7 | 0.45 | 0.111 | 0.107 | 0.528 |
| CP | 66.2c | 68.2b | 70.1a | 71.1a | 0.62 | <0.001 | <0.001 | 0.555 |
| NDF | 63.5 | 64.2 | 64.1 | 65.8 | 0.59 | 0.070 | 0.066 | 0.533 |
| ADF | 54.0 | 55.0 | 55.3 | 56.5 | 1.14 | 0.890 | 0.191 | 0.945 |
SEM = standard error of the mean; DM = dry matter; OM = organic matter; CP = crude protein; NDF = neutral detergent fiber; ADF = acid detergent fiber; T = treatment; L = linear; Q = quadratic.
a, b, c Within a row, means without a common superscript differ significantly (P < 0.05).