Table 6.
Genetic and phenotypic correlations between colostrum traits (vertical) and calf serum traits (horizontal)
| Trait | STP | S-IgGa | KLH-IgA | KLH-IgG | KLH-IgM | MDP-IgA | MDP-IgG | MDP-IgM |
|---|---|---|---|---|---|---|---|---|
| Phenotypic correlations | ||||||||
| Brix (%) | 0.17 (0.04) | 0.20 (0.04) | 0.14 (0.05) | 0.14 (0.05) | 0.10 (0.05) | 0.14 (0.05) | 0.10 (0.05) | 0.21 (0.04) |
| T-IgGa | 0.26 (0.04) | 0.26 (0.04) | 0.13 (0.04) | 0.13 (0.04) | 0.07 (0.04) | 0.13 (0.05) | 0.14 (0.04) | 0.17 (0.04) |
| KLH-IgA | 0.08 (0.04) | 0.13 (0.04) | 0.39 (0.04) | 0.21 (0.04) | 0.26 (0.04) | 0.32 (0.04) | 0.20 (0.04) | 0.33 (0.04) |
| KLH-IgG | 0.09 (0.05) | 0.17 (0.04) | 0.15 (0.04) | 0.53 (0.03) | 0.09 (0.05) | 0.09 (0.05) | 0.28 (0.04) | 0.14 (0.05) |
| KLH-IgM | 0.12 (0.04) | 0.16 (0.04) | 0.30 (0.04) | 0.14 (0.04) | 0.25 (0.04) | 0.34 (0.04) | 0.16 (0.04) | 0.40 (0.04) |
| MDP-IgA | 0.08 (0.05) | 0.12 (0.05) | 0.27 (0.04) | 0.14 (0.04) | 0.19 (0.04) | 0.35 (0.04) | 0.19 (0.04) | 0.31 (0.04) |
| MDP-IgG | 0.04 (0.04) | 0.07 (0.04) | 0.13 (0.04) | 0.13 (0.04) | 0.04 (0.04) | 0.06 (0.05) | 0.43 (0.04) | 0.11 (0.04) |
| MDP-IgM | 0.13 (0.04) | 0.13 (0.04) | 0.26 (0.04) | 0.14 (0.04) | 0.25 (0.04) | 0.29 (0.04) | 0.12 (0.04) | 0.37 (0.04) |
| Genetic correlations | ||||||||
| Brix | 0.54 (0.38) | 0.61 (0.54) | 0.39 (0.22) | 0.70 (0.61) | − 0.02 (0.32) | 0.31 (0.22) | NE | 0.40 (0.19) |
| T-IgGa | 0.95 (0.32) | 0.82 (0.52) | 0.43 (0.28) | 0.86 (0.63) | − 0.08 (0.40) | 0.18 (0.30) | 0.88 (0.66) | 0.48 (0.23) |
| KLH-IgA | 0.58 (0.44) | 0.51 (0.69) | 0.94 (0.18) | 0.23 (0.84) | 0.70 (0.27)b | 0.71 (0.19) | 0.85 (0.50) | 0.78 (0.15) |
| KLH-IgG | 0.60 (0.42) | 0.77 (0.59) | 0.11 (0.40) | 0.99 (0.42) | − 0.51 (0.54) | -0.31 (1.61) | 0.93 (0.38) | − 0.02 (0.32) |
| KLH-IgM | 0.75 (0.52) | 0.95 (0.89) | 0.98 (0.18) | 0.34 (0.74) | 0.67 (0.28)b | 0.67 (0.18) | 0.84 (0.59) | 0.91 (0.13) |
| MDP-IgA | 0.52 (0.52) | 0.68 (0.96) | 0.99 (0.22) | 0.36 (0.61) | 0.48 (0.30) | 0.65 (0.17) | 0.90 (0.65) | 0.77 (0.17) |
| MDP-IgG | 0.30 (0.44) | 0.18 (0.65) | 0.51 (0.31) | -0.16 (0.76) | 0.03 (0.34) | 0.29 (0.34) | 0.91 (0.45) | 0.13 (0.26) |
| MDP-IgM | 0.99 (0.72) | 0.92 (1.06) | 0.98 (0.18) | 0.43 (0.64) | 0.89 (0.27) | 0.96 (0.29) | 0.60 (0.62) | 0.99 (0.23) |
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
T-IgG colostrum IgG; NE not estimable
aVariance components for correlations were estimated using a square root transformation
bSuggestive significance (0.05 < p-value < 0.10)