Table 3.
Descriptive statistics of farrowing duration of different number born dead piglets.
| Number of Stillborn Piglets | Number of Litters (Frequency %) | Farrowing Duration (Minute) | CV (%) 1 |
|---|---|---|---|
| 0 | 25,339 (78.69) | 247.18 c ± 66.02 | 26.71 |
| 1 | 5779 (17.95) | 256.60 bc ± 68.44 | 26.67 |
| 2 | 824 (2.56) | 279.01 abc ± 84.27 | 30.20 |
| 3 | 162 (0.50) | 287.14 abc ± 87.34 | 30.42 |
| 4 | 44 (0.14) | 309.82 ab ± 99.09 | 31.98 |
| 5 | 30 (0.09) | 283.98 abc ± 79.20 | 27.89 |
| 6 | 14 (0.04) | 319.24 a ± 153.66 | 48.13 |
| 7 | 3 (0.01) | 288.40 abc ± 194.63 | 67.49 |
| 8 | 4 (0.01) | 298.65 abc ± 114.99 | 38.50 |
| 9 | 1 (-) | 251.00 |
1 CV represents coefficient of variation of duration of farrowing. a–c Values within a column with different superscripts differ significantly at p < 0.05.