Table 7.
Apparent total tract digestibility (ATTD) of dry matter (DM), gross energy (GE), acid hydrolyzed ether extract (AEE), and neutral detergent fiber (NDF) and digestible energy (DE) and metabolizable energy (ME) in experimental diets fed to pigs1 (as-fed basis), Exp. 1
Source of distillers dried grains with solubles | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Item | Basal | A | B | C | D | E | G | H | I | SEM | P value |
Intake | |||||||||||
Feed intake, g/d | 788 | 817 | 833 | 809 | 811 | 878 | 856 | 813 | 851 | 58 | 0.273 |
GE, Mcal/d | 2.98b | 3.38ab | 3.42ab | 3.30ab | 3.34ab | 3.56a | 3.47ab | 3.28ab | 3.45ab | 0.24 | 0.041 |
AEE, g/d | 29d | 49abc | 51ab | 48bc | 49abc | 56a | 47bc | 43c | 45bc | 3 | <0.001 |
NDF, g/d | 80.1c | 190a | 183ab | 175ab | 171ab | 172ab | 162b | 162b | 177ab | 12 | <0.001 |
Fecal excretion | |||||||||||
Dry feces output, g/d | 72b | 151a | 143a | 136a | 134a | 166a | 146a | 143a | 160a | 17 | <0.001 |
GE, kcal/d | 331b | 744a | 690a | 642a | 638a | 768a | 668a | 647a | 728a | 74 | <0.001 |
AEE, g/d | 10c | 19a | 16ab | 16ab | 15ab | 15ab | 15ab | 13bc | 15ab | 2 | <0.001 |
NDF, g/d | 31b | 75a | 73a | 67a | 63a | 77a | 73a | 71a | 78a | 6 | <0.001 |
ATTD, % | |||||||||||
DM | 91.0a | 81.5b | 83.0b | 83.5b | 83.7b | 81.2b | 82.9b | 82.6b | 81.4b | 1.0 | <0.001 |
GE | 89.0a | 78.1b | 80.0b | 80.9b | 81.1b | 78.5b | 80.7b | 80.5b | 79.2b | 1.0 | <0.001 |
AEE | 66.7ab | 61.9b | 69.4ab | 66.4ab | 69.9ab | 73.4a | 68.6ab | 69.4ab | 67.3ab | 2.5 | 0.014 |
NDF | 61.4ab | 60.7ab | 60.4ab | 62.4a | 63.0a | 55.3b | 55.0b | 56.6b | 56.2b | 1.7 | 0.003 |
DE in diet, kcal/kg | 3,364a | 3,236ab | 3,284ab | 3,303ab | 3,342ab | 3,182b | 3,274ab | 3,248ab | 3,215ab | 42 | 0.009 |
Urine output, kg/d | 2.42b | 2.72ab | 3.42ab | 4.04ab | 2.96ab | 5.58a | 3.17ab | 2.62ab | 2.89ab | 0.76 | 0.046 |
Urinary GE output, kcal/d | 55b | 131a | 148a | 138a | 114a | 163a | 142a | 119a | 132a | 13 | <0.001 |
ME in diet, kcal/kg | 3,295a | 3,076bc | 3,109bc | 3,132bc | 3,196ab | 2,997c | 3,107bc | 3,100bc | 3,059bc | 38 | <0.001 |
a–eWithin a row means without a common superscript differ (P < 0.05).
1Each least squares mean for all treatments represents 8 observations respectively except for distillers dried grains with soluble D diet (n = 7).