Table 4.
Estimated genetic correlations (below diagonal) and phenotypic correlations (above diagonal) between colostrum traits
| Trait | Brix | T-IgGa | KLH-IgA | KLH-IgG | KLH-IgM | MDP-IgA | MDP-IgG | MDP-IgM |
|---|---|---|---|---|---|---|---|---|
| Brix (%) | – | 0.70 (0.02) | 0.52 (0.02) | 0.51 (0.02) | 0.60 (0.02) | 0.48 (0.02) | 0.45 (0.02) | 0.58 (0.02) |
| T-IgG2 | 0.68 (0.14) | - | 0.37 (0.04) | 0.51 (0.03) | 0.48 (0.03) | 0.33 (0.04) | 0.35 (0.04) | 0.39 (0.03) |
| KLH-IgA | 0.71 (0.10) | 0.23 (0.26) | – | 0.55 (0.02) | 0.78 (0.01) | 0.68 (0.01) | 0.45 (0.02) | 0.67 (0.02) |
| KLH-IgG | 0.66 (0.14) | 0.93 (0.23)b | 0.39 (0.21)b | – | 0.57 (0.02) | 0.40 (0.02) | 0.56 (0.02) | 0.49 (0.02) |
| KLH-IgM | 0.73 (0.09) | 0.22 (0.25) | 0.85 (0.06) | 0.32 (0.23) | -– | 0.67 (0.02) | 0.49 (0.02) | 0.79 (0.01) |
| MDP-IgA | 0.52 (0.13) | 0.05 (0.28) | 0.92 (0.06) | 0.13 (0.24) | 0.81 (0.09) | – | 0.41 (0.02) | 0.67 (0.02) |
| MDP-IgG | 0.49 (0.14) | 0.33 (0.26) | 0.56 (0.15) | 0.76 (0.15) | 0.37 (0.18) | 0.44 (0.17)b | – | 0.53 (0.02) |
| MDP-IgM | 0.68 (0.10) | 0.13 (0.27) | 0.82 (0.08) | 0.10 (0.29) | 0.97 (0.04) | 0.92 (0.08) | 0.34 (0.19) | – |
Numbers in parenthesis are the standard errors
Bold characters highlight significant genetic correlations
The natural antibodies are coded as follows: MDP Muramyl dipeptide, KLH Keyhole limpet hemocyanin, IgA Immunoglobulin A, IgG Immunoglobulin G, IgM Immunoglobulin M
aVariance components for correlations were estimated using a square root transformation
bSuggestive significance (0.05 < p-value < 0.10)