Table 2.
Descriptive statistics for sow loading data, litter data, and sow weaning data for sows that developed a shoulder lesion (LES) and control sows (CON). Results are presented as mean plus or minus standard deviation. Sows were weighed when loaded into farrowing at day 109 of gestation and given a body condition score at that time. Born alive refers to the number of piglets born in the litter minus those that were stillborn or mummified. The parity is the parity post-farrowing. Number of weaned pigs is defined as the number of piglets weaned by that sow. Days in farrowing is the total time that the sow was in the farrowing room from loading to weaning. The wean litter weight refers to the total weight of all the piglets in the litter at weaning.
| CON (n = 176) | LES (n = 44) | |
|---|---|---|
| Sow load weight (kg) | 255.0 ± 43.1 | 240.9 ± 39.6 |
| BCS at loading | 3.2 ± 0.5 | 3.1 ± 0.5 |
| Lameness at loading (%) | 16.4% | 22.7% |
| Parity (#) | 3.8 ± 2.2 | 3.1 ± 2.0 |
| Born alive (#) | 15.3 ± 4.0 | 15.7 ± 4.1 |
| Days in farrowing (#) | 39.9 ± 1.8 | 40.0 ± 1.6 |
| Wean litter weight (kg) | 44.3 ± 10.8 | 47.8 ± 11.5 |
| Weaned pigs (#) | 11.1 ± 2.5 | 11.8 ± 2.7 |
| Lameness at weaning (%) | 15.3% | 20.4% |
| Sow wean weight (kg) | 235.9 ± 48.4 | 218.8 ± 45.4 |