Table 3.
Item | Dietary treatment1 | ||||||
---|---|---|---|---|---|---|---|
Basal | FFRB | DFRB | CGF | CGM | SEM | P-value | |
BW, kg | 36.2b | 36.1b | 34.7b | 34.9b | 40.8a | 0.9 | <0.001 |
DM intake, kg/d | 1.25c | 1.28c | 1.40a | 1.31bc | 1.39ab | 0.02 | <0.001 |
ATTD, % | |||||||
DM | 89.3a | 81.0bc | 74.1d | 78.9c | 84.2b | 1.0 | <0.001 |
GE | 88.8a | 81.7bc | 74.9d | 78.7cd | 83.8b | 1.1 | <0.001 |
CP | 88.2a | 77.5c | 76.3c | 80.8bc | 84.7ab | 1.8 | <0.001 |
NDF | 65.5a | 61.8a | 35.3b | 57.1a | 63.4a | 2.3 | <0.001 |
ADF | 62.8a | 42.24b | 19.79c | 50.2b | 64.2a | 3.0 | <0.001 |
Ether extract | 50.3b | 66.5a | 48.4b | 47.8b | 42.4b | 2.9 | <0.001 |
OM | 90.8a | 83.7bc | 77.3d | 80.4cd | 85.7b | 1.0 | <0.001 |
Urinary energy, % of DE | 2.09b | 1.79b | 2.45ab | 2.17ab; | 3.60a | 0.39 | 0.017 |
Methane energy, % of DE | 0.38a | 0.22b | 0.30ab | 0.57a | 0.52a | 0.08 | 0.009 |
ME, % of DE | 97.4a | 97.9a | 97.2ab | 97.1ab | 95.7b | 0.4 | 0.009 |
Nitrogen balance | |||||||
Intake, g/d | 39.9cd | 37.5d | 42.0bc | 43.5b | 49.1a | 0.7 | <0.001 |
Fecal output, g/d | 4.7b | 8.4a | 10.0a | 8.4a | 7.5a | 0.7 | <0.001 |
Urinary output, g/d | 9.6b | 5.7b | 8.7b | 9.7b | 17.3a | 1.2 | <0.001 |
Retention, g/d | 25.6 | 23.3 | 23.4 | 25.5 | 24.4 | 1.5 | 0.629 |
a–dMeans within a row with different superscripts differ (P < 0.05).
1Basal = corn–soybean meal basal diet; FFRB = full-fat rice bran diet; DFRB = defatted rice bran diet; CGF = corn gluten feed diet; CGM = corn germ meal diet.