A recent retrospective observational study demonstrated that the disease status of the breeding herds, barn characteristics and whole-herd feed medication were associated with the sow mortality rate. The main causes of sow mortality in this study were sudden deaths (30.89 percent), lame deaths (29.10 percent), prolapses (26.96 percent) and other causes (13.05 percent), respectively.
Source: National Hog Farmer, November 1, 2022. Link.