TABLE 5–6.
Level of Immunoglobulins in Colostrum and Milk and Estimates of Delivery of Lactational Immunoglobulins to the Breast-Feeding Neonate*
| Day Postpartum | Percentage of Total Proteins Represented by Immunoglobulin |
Output of Immunoglobulin (mg/24 hr) |
||||
|---|---|---|---|---|---|---|
| IgG | IgM | IgA | IgG | IgM | IgA | |
| 1 | 7 | 3 | 80 | 80 | 120 | 11,000 |
| 3 | 10 | 45 | 45 | 50 | 40 | 2000 |
| 7 | 1-2 | 4 | 20 | 25 | 10 | 1000 |
| 7-28 | 1-2 | 2 | 10-15 | 10 | 10 | 1000 |
| <50 | 1-2 | 0.5-1 | 10-15 | 10 | 10 | 1000 |
*
Estimates based on the available data for total immunoglobulin and daily protein synthesis (see references 8, 87, and 88).