| Farm 1 IGF-I genotype |  |  | Farm 2 IGF-I genotype | ||||
---|---|---|---|---|---|---|---|---|
 | AA | AB | BB | SM | AA | AB | BB | SM |
Milk (L) | 18.0 | 18.2 | 16.9 | 0.56 | 21.4 | 23.4 | 22.8 | 0.96 |
FCM (L) | 15.9 | 16.2 | 15.0 | 0.51 | 19.7a | 22.1b | 21.9ab | 1.05 |
Total solids (kg) | 1.13 | 1.16 | 1.08 | 0.04 | 1.46a | 1.62b | 1.60ab | 0.07 |
Calving 1st service (days) | 85ab | 73b | 103a | 10 | 85 | 81 | 77 | 5 |
Service/conception | 2.2 | 2.5 | 2.2 | 0.3 | 1.5 | 1.4 | 1.5 | 0.2 |
   Pregnancy rates | 80 | 82 | 74 | 8 | 68 | 69 | 66 | 10 |
   NEFA (mmol/L) | 0.42a | 0.41a | 0.37b | 0.01 | 0.32 | 0.36 | 0.34 | 0.03 |
   BHB (mmol/L) | 0.27a | 0.27a | 0.24b | 0.01 | 0.62 | 0.66 | 0.56 | 0.07 |
   Insulin (μUI/mL) | 2.91a | 3.19a | 4.18b | 0.27 | 2.60 | 2.55 | 2.60 | 0.42 |
   IGF-I (ng/mL) | 85.8 | 97.5 | 94.8 | 7.45 | 117.8 | 112.9 | 115.9 | 12.2 |
   BCS | 2.7 | 2.9 | 2.7 | 0.2 | 3.00 | 3.02 | 3.03 | 0.05 |