Table 5.
Direct heritability (h2) estimates for acute phase proteins and average daily gain for SPF and non-SPF pigs1
| SPF | Non-SPF | |||||||
|---|---|---|---|---|---|---|---|---|
| Trait | direct h2 (s.e.) | Pen effect (s.e.) | Genetic variance × 10-1 | Residual variance × 10-1 | direct h2 (s.e.) | Pen effect (s.e.) | Genetic variance × 10-1 | Residual variance × 10-1 |
| APP, μg/ml: | ||||||||
| haptoglobin | 0.23 (0.14) | 0.11 (0.05)* | 1.10 | 3.20 | 0.20 (0.11) | NS | 0.84 | 3.20 |
| TTR,2 | 0.28 (0.22) | NS | 0.24 | 0.36 | 0.12 (0.18) | NS | 0.11 | 0.51 |
| CRP | 0.20 (0.14) | NS | 1.40 | 5.60 | 0.13 (0.10) | 0.11 (0.06)* | 0.93 | 5.30 |
| AGP | 0.49 (0.14) | 0.08 (0.05)* | 0.59 | 0.52 | 0.48 (0.14) | NS | 0.56 | 0.51 |
| ADG, kg/d | 0.40 (0.07) | 0.09 (0.03)* | 0.07 | 0.09 | 0.13 (0.07) | NS | 0.02 | 0.15 |
1Traits for which the heritability differed significantly between SPF and non-SPF farms are shown bold (* p < 0.05).
2For transthyretin (TTR), both pen and dam effects were fitted