From: Genetic characteristics of colostrum refractive index and its use as a proxy for the concentration of immunoglobulins in Holstein cattle
Trait
BRIX
IgG
IgA
IgM
BRIX, %
–
0.91 (0.14)
0.57 (0.35)
0.71 (0.23)
IgG, g/L
0.78 (0.02)
0.39 (0.46)
0.49 (0.31)
IgA, g/L
0.57 (0.03)
0.56 (0.04)
0.39 (0.41)
IgM, g/L
0.61 (0.03)
0.55 (0.04)