Table 1.

Difference in immunoglobulin concentration between human and bovine colostrum.

Immunoglobins
Bovine (mg/mL)	Milk	Colostrum	Serum
IgG1	0.59	20–200	14.0
IgG2	0.12	12.0	11.0
IgM	0.05	4.20	3.1
IgA	0.14	3.90	0.4
Human (mg/mL)
Total IgG	0.04	0.43	12.1
IgM	0.10	1.59	0.9
IgA	1.00	17.35	2.5

Data adapted from [14,15,17].