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Mean RSV, litter size, parity number, and breed of the sows from Farm 1 (overall), Farm 1 ’21, and Farm 2.
| Variable | Farm 1 | Farm 1‘21 | Farm 2 |
|---|---|---|---|
| RSV1 | 8.61 | 8.79 | 8.9 |
| Day 1 (μ) | 30 | 28 | 29 |
| RSV2 | 9.3 | 9.44 1 | 9.36 1 |
| Day 2 (μ) | 46 | 45 | 44 |
| n | 4165 | 474 | 438 |
| Litter Size | 13.77 | 15.26 2 | 14.24 2 |
| Parity (μ) | 3.73 | 3.25 | 3.22 |
| Sow breed | |||
| F1 | 839 | 264 | 264 |
| F2 | 321 | - | - |
| LW | 45 | 29 | 14 |
1t-test, p < 0.05, 2 t-test, p < 0.01, n: number of cases.
