EN
The aim of the study was to determine IgG (total) concentrations in milk from cows with different forms of mastitis. In 51 samples of milk from black-white breed cows (15 from healthy udders, 12 from subclinical aseptic mastitis, 14 from subclinical septic mastitis and 10 from clinical mastitis) the level of IgG were measured by single radial immunodiffusion. The concentrations of IgG in mammary lacteal secretions from quarters with clinical mastitis (1477,8 mg/l) were significantly higher (p≤0,05) than in the control milk (604,6 mg/l) and in milk from subclinical aseptic (776,9 mg/l) and septic (850,1 mg/l) mastitis. There were no significant differences in concentrations of IgG in milk from aseptic and septic subclinical mastitis.