Table 2.
Mean values ( ± SD) of cria birth weight taking into account the birth term and reproductive loss rates in the analyzed regions. The * symbol indicates a significant difference at p ≤ 0.05, and the *** symbol indicates a significant difference at p ≤ 0.001.
| British Isles | Continental Europe | North America | Chi2 | p-Value | |
|---|---|---|---|---|---|
| Cria birth weight (kg) | 7.86 ± 0.88 N = 22 |
7.42 ± 0.84 N = 31 |
7.34 ± 0.87 N = 56 |
8.541 | 0.014 * |
| Birth weight of premature cria (kg) | 6.64 ± 1.45 N = 14 |
5.94 ± 1.45 N = 18 |
4.53 ± 1.24 N = 20 |
15.869 | 0.0004 *** |
| Birth weight of postmature cria (kg) | 8.47 ± 1.37 N = 17 |
8.09 ± 1.16 N = 19 |
8.04 ± 1.24 N = 28 |
1.339 | 0.512 |
| Cases of miscarriage (n) |
1.05 ± 1.46 N = 22 |
1.06 ± 1.5 N = 31 |
1.02 ± 1.74 N = 56 |
0.218 | 0.897 |
| Cases of stillbirth (n) |
0.45 ± 0.67 N = 22 |
0.48 ± 0.85 N = 31 |
0.45 ± 0.63 N = 56 |
0.102 | 0.95 |
| Deaths up to 12 months (n) | 1.32 ± 2.38 N = 22 |
1.29 ± 1.62 N = 31 |
1.5 ± 3.88 N = 56 |
0.624 | 0.732 |