Page 745 - Veterinary Immunology, 10th Edition

predominates in milk. In ruminants, IgG1 is the predominant
VetBooks.ir immunoglobulin in both milk and colostrum (Fig. 23.5).

TABLE 23.1
Colostral and Milk Immunoglobulin Levels in Domestic

Animals

IMMUNOGLOBULIN (mg/dL)
Species Fluid IgA IgM IgG IgG3 IgG6
Horse Colostrum 500-1500 100-350 1500-5000 500-2500 50-150
Milk 50-100 5-10 20-50 5-20 0
Cow Colostrum 100-700 300-1300 2400-8000
Milk 10-50 10-20 50-750
Ewe Colostrum 100-700 400-1200 4000-6000
Milk 5-12 0-7 60-100
Sow Colostrum 950-1050 250-320 3000-7000
Bitch Colostrum 500-2200 14-57 120-300
Milk 110-620 10-54 1-3
Queen Colostrum 150-340 47-58 4400-3250
Milk 240-620 0 100-440

745