Table 2.
Chemical composition (g/kg dry matter) and metabolizable energy concentration (MJ/kg dry matter) of by-products.
| By-Product | OM | CP | EE | NDF | ADF | ADL | NSC | ME |
|---|---|---|---|---|---|---|---|---|
| Sugar beet pulp (dehydrated) | 869 | 116 | 3 | 460 | 237 | 40 | 291 | 10.1 |
| Ensiled sugar beet pulp | 937 | 110 | 3 | 430 | 246 | 25 | 394 | 10.4 |
| Sugar beet tops and leaves | 874 | 157 | 15 | 290 | 113 | 27 | 412 | 9.7 |
| Sugar beet rootlets, hairs, root tips and beet tails | 879 | 103 | 4 | 435 | 215 | 87 | 337 | 8.0 |
| Grape seeds | 960 | 116 | 52 | 682 | 584 | 437 | 110 | 4.7 |
| Olive tree leaves | 842 | 98 | 47 | 529 | 345 | 231 | 168 | 6.3 |
| Almond hulls | 914 | 53 | 18 | 322 | 224 | 110 | 520 | 8.0 |
| Broccoli stalk hay | 899 | 155 | 66 | 556 | 349 | 54 | 122 | 8.4 |
| Lettuce leaves | 823 | 184 | 23 | 224 | 158 | 34 | 392 | 8.6 |
| Asparagus rinds1 | 912 | 206 | 16 | 455 | 293 | 67 | 235 | 8.1 |
| Asparagus rinds2 | 941 | 226 | 20 | 305 | 169 | 24 | 390 | 10.1 |
| Green bean haulms | 769 | 169 | 34 | 415 | 323 | 136 | 152 | 8.9 |
| Mixture green bean haulms + sugar beet pulp | 879 | 152 | 17 | 361 | 231 | 44 | 350 | 9.6 |
| Artichoke by-products (ensiled) | 921 | 126 | 19 | 591 | 404 | 110 | 185 | 7.4 |
| Artichoke by-products (hay) | 948 | 177 | 41 | 678 | 467 | 76 | 51 | 8.2 |
| Pea haulms | 902 | 199 | 32 | 282 | 146 | 14 | 389 | 10.2 |
| Broad bean haulms | 902 | 173 | 21 | 335 | 185 | 18 | 373 | 10.0 |
| Dried tomato pulp | 965 | 190 | 51 | 557 | 427 | 260 | 167 | 7.8 |
| Pepper by-products (cores) | 893 | 192 | 67 | 311 | 222 | 55 | 323 | 8.9 |
| Pepper by-products (skins) | 949 | 99 | 33 | 753 | 641 | 383 | 64 | 4.4 |
| Apple pomace | 984 | 51 | 60 | 672 | 460 | 150 | 201 | 7.4 |
| Apple and pear pomace | 987 | 48 | 27 | 683 | 460 | 129 | 229 | 6.9 |
| Citrus pulp (clementine) | 972 | 73 | 20 | 139 | 96 | 2 | 740 | 11.3 |
| Citrus pulp (lemon) | 957 | 76 | 77 | 247 | 171 | 3 | 558 | 12.6 |
| Citrus pulp (orange)1 | 969 | 80 | 26 | 222 | 126 | 2 | 640 | 11.7 |
| Citrus pulp (orange)2 | 940 | 110 | 25 | 308 | 233 | 14 | 496 | 9.1 |
OM = organic matter; CP = crude protein; EE = ether extract; NDF = neutral detergent fibre; ADF = acid detergent fibre; ADL = acid detergent lignin; NSC = non-structural carbohydrates; ME = metabolizable energy (calculated following the equation of Menke and Steingass [25]).