Table 4.
Hind left quarter of primiparous and multiparous dairy cows: Pearson correlation coefficients between colostrum constituents and quality parameters (SG = specific gravity, color coordinates L*, a*, and b*). Significant correlation coefficients (P < 0.05) are highlighted in bold-type
| Milk yield, kg | IgG concentration,mg/mL | Brix, % | SG | Fat, % | Protein, % | L* | a* | b* | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Milk yield, kg | – | 0.59 (P = 0.06) | −0.16 (P = 0.63) | 0.47 (P = 0.15) | −0.05 (P = 0.89) | 0.00 (P = 0.99) | −0.02 (P = 0.95) | −0.25 (P = 0.45) | −0.09 (P = 0.79) | Multiparous cows |
| IgG concentration, mg/mL | −0.40 (P = 0.11) | – | 0.20 (P = 0.57) | 0.28 (P = 0.40) | −0.01 (P = 0.98) | 0.17 (P = 0.61) | −0.27 (P = 0.42) | 0.19 (P = 0.59) | 0.28 (P = 0.40) | |
| Brix, % | 0.10 (P = 0.70) | 0.15 (P = 0.57) | – | 0.00 (P = 0.99) | −0.04 (P = 0.90) | 0.94 (P < 0.0001) | −0.22 (P = 0.52) | 0.29 (P = 0.38) | 0.43 (P = 0.19) | |
| SG | −0.03 (P = 0.92) | 0.00 (P = 0.99) | 0.34 (P = 0.19) | – | −0.20 (P = 0.56) | 0.02 (P = 0.96) | 0.48 (P = 0.13) | -0.61 (P < 0.05) | 0.24 (P = 0.47) | |
| Fat, % | 0.46 (P = 0.10) | 0.04 (P = 0.88) | −0.19 (P = 0.53) | −0.33 (P = 0.25) | – | −0.25 (P = 0.46) | 0.35 (P = 0.29) | 0.07 (P = 0.85) | 0.52 (P = 0.10) | |
| Protein, % | 0.08 (P = 0.78) | 0.12 (P = 0.68) | 0.95 (P < 0.0001) | −0.04 (P = 0.90) | −0.30 (P = 0.30) | – | −0.28 (P = 0.40) | 0.20 (P = 0.55) | 0.17 (P = 0.62) | |
| L* | −0.26 (P = 0.32) | −0.21 (P = 0.42) | -0.82 (P < 0.0001) | −0.07 (P = 0.78) | 0.10 (P = 0.72) | -0.84 (P < 0.001) | – | -0.85 (P < 0.001) | 0.29 (P = 0.38) | |
| a* | −0.14 (P = 0.59) | 0.33 (P = 0.19) | 0.33 (P = 0.20) | −0.30 (P = 0.24) | 0.37 (P = 0.19) | 0.21 (P = 0.47) | -0.52 (P < 0.05) | – | 0.08 (P = 0.81) | |
| b* | −0.04 (P = 0.88) | 0.22 (P = 0.41) | 0.56 (P < 0.05) | −0.15 (P = 0.56) | 0.26 (P = 0.38) | 0.50 (P = 0.07) | -0.67 (P < 0.01) | 0.91 (P < 0.0001) | – | |
| Primiparous cows | ||||||||||