Variable | Stratum | Estimate | Difference | SE* | P** |
Constant | 4982.05 | 193.40 | <0.0001 | ||
AFC (months) | <26 | 4817.36 | −354.78 | 46.50 | <0.0001 |
26 - 33.6 | 5066.54 | −105.60 | 41.87 | 0.0117 | |
>33.6 | 5172.14 | 0 | 0 | 0 | |
Zone*** | LM-wf | 5432.86 | 1311.38 | 175.72 | <0.0001 |
P-wf | 5393.09 | 1271.61 | 169.17 | <0.0001 | |
P-vwf | 4650.61 | 529.13 | 179.00 | 0.0031 | |
T-vwf | 5264.67 | 1143.18 | 167.29 | <0.0001 | |
LM-rf | 4703.54 | 582.06 | 169.24 | 0.0006 | |
P-rf | 5564.53 | 1443.04 | 172.42 | <0.0001 | |
M-vwf | 4121.48 | 0 | 0 | 0 | |
Type of parturition**** | Normal | 5058.29 | 79.21 | 53.95 | 0.1421 |
Distocic | 4979.08 | 0 | 0 | 0 | |
Without RFM | 5115.72 | 194.08 | 81.13 | 0.0168 | |
With RFM | 4921.64 | 0 | 0 | 0 | |
First lactation length | <256 | 3648.58 | −2281.33 | 40.85 | <0.0001 |
(days) | 256 - 375 | 5477.55 | −452.36 | 27.51 | <0.0001 |
>375 | 5929.91 | 0 | 0 | 0 | |
Inbreeding coefficient | <6.25% | 5086.16 | 134.94 | 57.7 | 0.0196 |
≥6.25% | 4951.20 | 0 | 0 | 0 |