Table 4.
Analyzed gross energy, macronutrient content, and fatty acid composition of starter and grower–finisher broiler chicken diets (Experiment 2).
| Dietary Treatments 1 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Item 2 | Starter (0–21 d) | Grower–Finisher (22–38 d) | ||||||||
| S3 | AO3 | AO2–L1 | AO1–L2 | L3 | S3 | AO3 | AO2–L1 | AO1–L2 | L3 | |
| Macronutrient Content (%) | ||||||||||
| Dry Matter | 91.8 | 91.8 | 91.4 | 92.1 | 91.0 | 90.9 | 90.9 | 90.9 | 90.7 | 91.0 |
| Crude Protein | 22.3 | 22.2 | 23.1 | 22.5 | 22.5 | 22.1 | 21.3 | 20.6 | 20.6 | 20.8 |
| Crude Fat | 5.46 | 5.33 | 5.58 | 5.30 | 5.10 | 6.60 | 6.60 | 6.37 | 6.15 | 6.23 |
| Crude Fiber | 4.38 | 3.84 | 4.04 | 3.98 | 4.13 | 4.62 | 4.17 | 3.81 | 4.02 | 4.20 |
| Ash | 8.50 | 8.36 | 8.73 | 8.53 | 8.65 | 9.86 | 9.21 | 10.2 | 10.5 | 9.53 |
| Fatty Acid Profile (%) | ||||||||||
| SFA | 17.2 | 17.9 | 18.2 | 18.8 | 19.6 | 23.6 | 24.7 | 25.4 | 25.9 | 26.5 |
| C16:0 | 13.5 | 14.3 | 14.6 | 15.1 | 15.7 | 19.4 | 20.5 | 21.1 | 21.6 | 22.2 |
| C18:0 | 3.70 | 3.66 | 3.63 | 3.68 | 3.87 | 3.96 | 3.95 | 3.98 | 3.99 | 3.99 |
| MUFA | 22.1 | 35.0 | 30.5 | 25.5 | 19.9 | 27.1 | 40.1 | 35.1 | 30.5 | 25.4 |
| C18:1 ω-9 | 20.7 | 33.5 | 29.1 | 24.1 | 18.7 | 25.6 | 38.3 | 33.4 | 29.0 | 24.0 |
| PUFA | 60.7 | 47.1 | 51.3 | 55.7 | 60.5 | 49.3 | 35.2 | 39.5 | 43.6 | 48.1 |
| C18:2 ω-6 | 54.1 | 43.4 | 46.8 | 50.6 | 54.6 | 43.7 | 32.5 | 36.0 | 39.6 | 43.3 |
| C18:3 ω-3 | 6.61 | 3.74 | 4.45 | 5.14 | 5.90 | 5.56 | 2.73 | 3.46 | 4.07 | 4.81 |
| Minor fatty acids | 1.39 | 1.40 | 1.42 | 1.38 | 1.23 | 1.78 | 2.02 | 2.06 | 1.74 | 1.70 |
| UFA:SFA | 4.81 | 4.59 | 4.49 | 4.32 | 4.10 | 3.24 | 3.05 | 2.94 | 2.86 | 2.77 |
| PUFA:SFA | 3.53 | 2.63 | 2.82 | 2.96 | 3.09 | 2.09 | 1.43 | 1.56 | 1.68 | 1.82 |
| Energy Content (MJ/kg) | ||||||||||
| GE | 17.3 | 17.3 | 17.1 | 17.1 | 16.9 | 17.6 | 17.6 | 17.5 | 17.5 | 17.4 |
SFA: Saturated fatty acids; MUFA: Monounsaturated fatty acids; PUFA: Polyunsaturated fatty acids; UFA:SFA: Unsaturated-to-saturated fatty acid ratio; PUFA:SFA: Polyunsaturated-to-saturated fatty acid ratio; GE: Gross energy. 1 S3: Soybean (S) oil at 3.00%; AO3: Acid oil (AO) at 3.00%; AO2–L1: AO at 2.00% and soybean lecithin high in free fatty acids (L) at 1.00%; AO1–L2: AO at 1.00% and L at 2.00%; L3: L at 3.00%. 2 Samples were analyzed twice.