Table 6. Study C: key analysed values of starter and grower feeds (as is).
| Treatment | Dry matter (%) |
Crude protein (%) |
Crude fat (%) |
Ash (%) |
Fe (mg/kg) |
Microtracer (% recovery) |
Calculated ferric content (mg/kg feed)1 |
|---|---|---|---|---|---|---|---|
| Starter diet (0–14 d) | |||||||
| T1 Control | 90.11 | 21.55 | 3.70 | 5.37 | 51.9 | NA | NA |
| T2 Ferric lactate | 90.08 | 21.60 | 3.68 | 5.41 | 148.9 | 114 | 570 |
| T3 Ferric citrate | 90.15 | 21.54 | 3.70 | 5.42 | 135.6 | 94 | 470 |
| T4 Ferric tartrate | 90.11 | 21.58 | 3.68 | 5.42 | 152.8 | 109 | 550 |
| Grower diet (15–42 d) | |||||||
| T1 Control | 90.10 | 20.08 | 4.05 | 5.75 | 75.4 | NA | NA |
| T2 Ferric lactate | 90.11 | 20.10 | 4.06 | 5.81 | 173.5 | 99 | 500 |
| T3 Ferric citrate | 90.18 | 20.07 | 4.00 | 5.80 | 160.4 | 93 | 470 |
| T4 Ferric tartrate | 90.04 | 20.11 | 4.05 | 5.83 | 178.1 | 106 | 530 |
Notes:
NA = Not applicable.
1
Calculated ferric citrate = % recovery of microtracer × ferric citrate dose.