highly significantP ≤ 0.001
One stallion and one broodmare were very highly significant to affected cohorts at P ≤ 0.001, and nine stallions and three broodmares were very highly significant to control cohorts at P ≤ 0.001.
One stallion and one broodmare were very highly significant to affected cohorts at P ≤ 0.001, and nine stallions and three broodmares were very highly significant to control cohorts at P ≤ 0.001.
Descriptive statistics of pedigrees As seen in Table 2 , while not large, there was an overall trend for increase in inbreeding over time in both affected and control groups, but no clear pattern exists for any differences in average inbreeding coefficient between affected and control Std.