Table 1.
Overview of traits and number of analyzed samples by breed and farm
| Sample type | Trait | N | Breed | Farm | ||||
|---|---|---|---|---|---|---|---|---|
| SRB | SLB | CRB | L | R | V | |||
| Colostrum | Brix (%) | 1682 | 870 | 567 | 245 | 568 | 225 | 889 |
| Total IgG (g/L) | 686 | 482 | 204 | – | 504 | 185 | – | |
| NAb (titer) | 1519–1532 | 808 | 515 | 209 | 570 | 228 | 734 | |
| First test milk | NAb (titer) | 248–272 | 170 | 102 | – | 272 | – | – |
| Pre-parturition serum | NAb (titer) | 321 | 197 | 124 | – | 321 | – | – |
| Calf serum | STP (g/dL) | 808 | 507 | 207 | 93 | 581 | 227 | – |
| S-IgG (g/L) | 810 | 509 | 210 | 91 | 584 | 226 | – | |
| NAb (titer) | 774–827 | 520 | 211 | 96 | 594 | 233 | – | |
N number of analyzed samples; SRB Swedish Red, SLB Swedish Holstein, CRB SRB/SLB crossbred; L Lövsta forskningscentrum, R Röbäcksdalen forskningsstation SITES, V Nötcenter Viken; NAb natural antibodies, STP serum total protein, S-IgG serum IgG