Table 3 Cows for which LS was recorded before and after ESD were classified into 1 of 4 categories: NN for cows never detected lame, YN for cows lame before ESD and LS <3 after ESD, NY for cows LS <3 before ESD and lame after ESD and YY for cows lame before and after ESD. SR, overall CR, number of serves per conception and Kaplan-Meier median survival time is shown for each lameness detection category
LS ≥ 3 detection categories | N (%) | SR (%) | CR (%) | serves/conception | K-M median survival time (95 % CI) |
|---|---|---|---|---|---|
NN | 612 (79.4) | 85.2 | 50.3 | 2.0 | 26 (24–30) |
YN | 47 (6.1) | 66.0 | 59.1 | 1.7 | 33 (25–48) |
NY | 69 (8.9) | 81.2 | 43.4 | 2.3 | 36 (24–70) |
YY | 43 (5.6) | 72.1 | 41.4 | 2.4 | 43 (28–74) |