Table 1.
Ingredients and chemical composition of the diets.
| Itema | FORAGES | CONCENTRATE | Dietb | ||
|---|---|---|---|---|---|
| Alfalfa | Lemon leaves | Compound feed | ALF | LEM | |
| Ingredients, g/kg DM | |||||
| Alfalfa pellet | 1000 | 450 | |||
| Lemon leaves pellet | 1000 | 450 | |||
| Barley | 350 | 193 | 193 | ||
| Corn | 309 | 170 | 170 | ||
| Wheat bran | 150 | 83 | 83 | ||
| Soy meal (44% CP) | 148 | 81 | 81 | ||
| Calcium carbonate | 22 | 12 | 12 | ||
| Sodium chloride | 11 | 6 | 6 | ||
| Bypass fat | 5 | 3 | 3 | ||
| Premix | 5 | 3 | 3 | ||
| Chemical composition, % of DM | |||||
| DM | 92 | 90 | 91 | 91 | 90 |
| OM | 83 | 91 | 92 | 88 | 92 |
| Ash | 17 | 9 | 8 | 12 | 8 |
| CP | 17 | 13 | 18 | 17 | 16 |
| Ether extract | 1 | 3 | 3 | 2 | 3 |
| NDF | 49 | 26 | 17 | 31 | 21 |
| ADF | 32 | 18 | 5 | 17 | 11 |
| ADL | 7 | 4 | 0 | 3 | 2 |
| NFC | 16 | 48 | 55 | 37 | 52 |
| Starch | 1 | 11 | 50 | 28 | 32 |
| C | 41 | 42 | 42 | 41 | 42 |
| Nitrogen | 3 | 2 | 3 | 3 | 3 |
| Carbon:nitrogen | 15 | 20 | 15 | 15 | 16 |
| Gross energy, MJ/kg DM | 16 | 17 | 17 | 16 | 17 |
aBypass fat of palm fatty acid distillate. Provided by Norel Animal Nutrition, Norel S.A., Spain. Premix = provided by NACOOP S.A. España. Premix composition (ppm or IU per kilogram of premix): Se, 40 mg/kg; I, 250 mg/kg; Co, 80 mg/kg; Cu, 3,000 mg/kg; Fe, 6,000 mg/kg; Zn, 23,400 mg/kg; Mn, 29,000 mg/kg; S, 60,000 mg/kg; Mg, 60,000 mg/kg; vitamin A, 2,000,000 IU/kg; vitamin D3, 400,000 IU/kg; vitamin E, 2,000 ppm; nicotinic acid, 10,000 ppm; choline, 20,300 ppm. NFC = nonfibrous carbohydrate content: 100-(NDF+ash+CP+EE). EE = Ether extract.
bALF = alfalfa; LEM = lemon leaves.