Table 1.
The output of the different models based on UF db-RDA. The results are the final models. VIF scores are given for variables excluded from the full model.
| Model 1 | Df | AIC | F | Pr (> F) |
|---|---|---|---|---|
| Flock | 9 | 903.10 | 4.51 | 0.005 |
| Community types | 1 | 893.32 | 13.40 | 0.005 |
| Body weight | 1 | 889.68 | 9.76 | 0.005 |
| Surface | 1 | 888.40 | 1.20 | 0.215 |
| Flock size | 1 | 882.70 | 0.91 | 0.560 |
| Sex | 1 | 883.65 | 0.96 | 0.580 |
| Feed producer | 2 | 881.65 | ||
| Litter type | 2 | 881.65 | ||
| VIF scores: age parent stock (1191), age (164), density (22), farm (11), hatchery (11), and antibiotic use (6). | ||||
| Model 2 | Df | AIC | F | Pr (> F) |
| Community types | 1 | 898.65 | 13.26 | 0.005 |
| Body weight | 1 | 894.62 | 9.16 | 0.005 |
| Rapeseed meal % | 1 | 894.18 | 8.71 | 0.005 |
| Sunflower seed meal % | 1 | 893.14 | 7.67 | 0.005 |
| Fish oil % | 1 | 890.60 | 5.12 | 0.005 |
| VIF scores: soybean meal % (1580), farmers wheat % (309), metabolizable energy(AME)·kg−1 (153), fecal digestible lysine g·kg−1 (13 449), maize % (195), oats % (2998), phosphorous (22), wheat % (42), potato protein % (9), methionine + cysteine (5), and flock (4) | ||||
| Model 3 | Df | AIC | F | Pr (> F) |
| Flock | 9 | 887.41 | 4.13 | 0.005 |
| Body weight | 1 | 877.32 | 10.26 | 0.005 |
| Community types | 1 | 876.49 | 9.44 | 0.005 |
| Rapeseed meal % | 1 | 873.11 | 6.16 | 0.005 |
| Sunflower seed meal % | 1 | 873.07 | 6.11 | 0.005 |
| Fish oil % | 1 | 870.75 | 3.89 | 0.005 |
| VIF scores: soybean meal % (1580), farmers wheat % (309), metabolizable energy (AME)·kg−1 (153), fecal digestible lysine g·kg−1 (13 449), maize % (195), oats % (2998), phosphorous (22), wheat % (42), potato protein % (9), and methionine + cysteine (5) | ||||