Table 2.
Effects of trace mineral type (coated or uncoated) and supplementation level (300, 500, or 1,000 mg/kg) of trace minerals on the growth performance of ducks.
| Trace minerals | Level (mg/kg) | ADFI, g/d | ADG, g/d | FCR |
|---|---|---|---|---|
| Uncoated | 300 | 207.38 | 95.40 | 2.17 |
| 500 | 219.13 | 97.36 | 2.25 | |
| 1,000 | 215.93 | 101.74 | 2.12 | |
| Coated | 300 | 212.45 | 96.89 | 2.19 |
| 500 | 207.30 | 99.71 | 2.08 | |
| 1,000 | 218.69 | 103.74 | 2.11 | |
| SEM | 7.500 | 1.870 | 0.062 | |
| Main effect | ||||
| Trace minerals | Coated | 212.81 | 100.12 | 2.13 |
| Uncoated | 214.14 | 98.17 | 2.18 | |
| Level | 300 | 209.92 | 96.15c | 2.18 |
| 500 | 213.21 | 98.54b | 2.16 | |
| 1,000 | 217.31 | 102.74a | 2.12 | |
| Value of p | ||||
| Trace minerals | 0.712 | 0.031 | 0.147 | |
| Level | 0.261 | <0.001 | 0.334 | |
| Interaction | 0.138 | 0.914 | 0.108 | |
ADFI, average daily feed intake; ADG, average daily weight gain; FCR, feed conversion ratio.
a,b,c
Means within columns not sharing a common superscript are significantly different at the 5% level of probability.