Table 10.
Correlation coefficients between in vitro apparent ileal digestibility (IVAID) and in vitro apparent total tract digestibility (IVATTD) of DM, concentration of DE and ME, and in vivo apparent total tract digestibility (ATTD) of DM and nutrients in ingredients
| Item | Correlation coefficient1 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| IVATTD of DM | DE | ME | ATTD of DM | ATTD of GE | ATTD of CP | ATTD of NDF | ATTD of TDF | ATTD of SDF | |
| IVAID of DM | 0.81*** | 0.64** | 0.61* | 0.63* | 0.34 | 0.92*** | 0.33 | 0.49 | 0.24 |
| IVATTD of DM | 1.00 | 0.74** | 0.72** | 0.79*** | 0.54 | 0.60* | 0.37 | 0.63* | 0.65* |
| DE | — | 1.00 | 1.00*** | 0.67** | 0.81*** | 0.43 | 0.59* | 0.36 | 0.19 |
| ME | — | — | 1.00 | 0.69** | 0.84*** | 0.39 | 0.61 | 0.36 | 0.20 |
| ATTD of DM | — | — | — | 1.00 | 0.76** | 0.51 | 0.57 | 0.56* | 0.60* |
| ATTD of GE | — | — | — | — | 1.00 | 0.18 | 0.45 | 0.13 | 0.39 |
| ATTD of CP | — | — | — | — | — | 1.00 | −0.28 | 0.24 | 0.03 |
| ATTD of NDF | — | — | — | — | — | — | 1.00 | 0.83*** | −0.00 |
| ATTD of TDF | — | — | — | — | — | — | — | 1.00 | 0.44 |
*P < 0.10; **P < 0.05; ***P < 0.01.
1IVAID = in vitro apparent ileal digestibility; IVATTD = in vitro apparent total tract digestibility; AEE = acid hydrolyzed ether extract; TDF = total dietary fiber.