Table 1. Experimental treatments (T) and chemical composition of the diets.
| Items | Proportion in diet (%) | |||
|---|---|---|---|---|
| T1 | T2 | T3 | T4 | |
| Acacia mearnsii extract (CT) | 0 | 0.25 | 0.5 | 0.75 |
| Corn ground | 65 | 65 | 65 | 65 |
| Soy bean meal | 8 | 8 | 8 | 8 |
| Oat hay | 20 | 20 | 20 | 20 |
| Molasses | 5 | 5 | 5 | 5 |
| Mineral premix* | 2 | 2 | 2 | 2 |
| Chemical composition | ||||
| CT (g/kg DM) | 0.0 | 1.75 | 3.5 | 5.25 |
| Total phenols (g/kg DM) | 2.81 | 4.73 | 6.73 | 7.90 |
| Total proteins (%) | 13.41 | 13.41 | 13.41 | 13.41 |
| ME (Mcal/kg DM) | 2.81 | 2.81 | 2.81 | 2.81 |
| Fatty acid profile (%) | ||||
| Myristic | 0.20 | 0.17 | 0.20 | 0.14 |
| Palmitic | 17.50 | 17.67 | 19.03 | 17.37 |
| Palmitoleic | 0.13 | 0.14 | 0.13 | 0.14 |
| Heptadecanoic | 0.08 | 0.08 | 0.09 | 0.08 |
| Stearic | 2.51 | 2.44 | 2.50 | 2.51 |
| Elaidic | 0.80 | 0.47 | 0.73 | 0.66 |
| Oleic | 30.87 | 32.68 | 32.81 | 33.18 |
| Linoleic | 45.06 | 44.13 | 42.46 | 43.03 |
| Arachidonic | 0.44 | 0.40 | 0.36 | 0.41 |
| Cis-11-Eicosenoic | 0.09 | 0.09 | 0.09 | 0.07 |
| Linolenic | 1.22 | 1.25 | 1.08 | 1.24 |
Notes.
Abbreviations
- CT
- Condensed tannins
*
Ca, 24%; Cl, 12%; Mg, 2%; P, 3%; K, 0.50%; Na, 8%; S, 0.50%; Cr, 5 mg/kg DM; Co, 60 mg/kg DM; I, 100 mg/kg DM; Fe, 2000 mg/kg DM; Mn, 4,000 mg/kg DM; Se, 30 mg/kg DM; Zn, 5,000 mg/kg DM; Lasalocid, 2,000 mg/kg DM; Vitamin A, 500 000 UI/kg; Vitamin D, 150,000 UI/kg; Vitamin E, 1,000 UI/kg.