Table 1.
The variability of chemical components in feed ingredients and diets in the database (dry matter basis)
| Item | Feed ingredients | Diets | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
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| n | Mean | Min. | Max. | SD | n | Mean | Min. | Max. | SD | |
| GE (kcal/kg) | 423 | 4,794 | 3,317 | 6,349 | 491 | 278 | 4,489 | 4,025 | 5,319 | 211 |
| DE (kcal/kg) | 438 | 3,733 | 1,856 | 6,099 | 631 | 283 | 3,810 | 3,007 | 4,501 | 289 |
| ME (kcal/kg) | 437 | 3,497 | 1,569 | 5,989 | 606 | 264 | 3,655 | 2,893 | 4,321 | 279 |
| EE (%) | 397 | 5.8 | 0 | 27.5 | 4.9 | 215 | 4.2 | 0.6 | 11.8 | 2.2 |
| CP (%) | 450 | 32.9 | 2.0 | 101.4 | 20.8 | 282 | 18.6 | 7.3 | 30.1 | 5.2 |
| NDF (%) | 402 | 25.8 | 0 | 84.8 | 14.5 | 269 | 14.9 | 2.6 | 51.7 | 6.8 |
| ADF (%) | 395 | 10.6 | 0 | 53.8 | 8.4 | 239 | 5.8 | 1.6 | 22.2 | 3.1 |
| Ash (%) | 416 | 7.0 | 0.2 | 46.2 | 7.1 | 177 | 5.3 | 2.3 | 11.7 | 1.5 |
SD, standard deviation; GE, gross energy; DE, digestible energy; ME, metabolizable energy; EE, ether extract; CP, crude protein; NDF, neutral detergent fiber; ADF, acid detergent fiber.