[Age-related dynamics of agglutinin formation in poultry experimentally infected with Salmonella gallinarum-pullorum].

Agglutinin production in birds experimentally infected with Salmonella gallinarum-pullorum directly correlates with age. The older the birds, the earlier setting on of agglutinogenesis, and the better the immune response. Along with this agglutinins persist longer in the blood serum. It is suggester to carry out the first serologic examination in infected flocks of the Leghorn breed when the birds are aged 50-55 days. This term may be essential only in cases where the birds have been infected at the earliest age. The second investigation should take place when the birds are six months old.