| Reference period | Observation period | Standard error | p-value | ||
cov | herd | period | ||||
Primiparous |
|
|
|
|
|
|
AIf | 45% | 42% | 1.1% | 0.862 | 0.519 | 0.772 |
AI1f | 48% | 40% | 1.1% | 0.958 | 0.166 | 0.741 |
AI3 | 20% | 18% | 1.1% | 0.243 | 0.119 | 0.446 |
nAI* | 2.4 | 2.5 | 0.20 | 0.615 | 0.85 | 0.789 |
Calving to AIf (d) | 130.4 | 133.9 | 3.02 | 0.000 | 0.011 | 0.441 |
Multiparous |
|
|
|
|
|
|
AIf | 34% | 38% | 1.0% | 0.333 | 0.112 | 0.014 |
AI1f | 31% | 36% | 1.1% | 0.084 | 0.107 | 0.011 |
AI3 | 25% | 23% | 1.1% | 0.514 | 0.038 | 0.389 |
nAI* | 3.1 | 2.7 | 0.14 | 0.487 | 0.097 | 0.007 |
Calving to AIf (d) | 148.8 | 143.9 | 3.64 | 0.003 | 0.011 | 0.323 |