Fish Immunology (1+1)

Unit 6- Ontogeny of Fish Immune System

6.2. Evidence for Ig in the Eggs and Passive Transfer of Immunity from Mother to Young
Nonspecific humoral factors, such as C-reactive protein and lectin-like agglutinins are found in fish egg, in addition to that Immunoglobulin has aslo been detected in both fertilized and unfertilized eggs of carp. The levels in the whole fish increased slowly to reach a peak, in terms of milligrams per gram of tissue, at the time of hatching, and slowly decline. IgM-like protein was maternally derived and that it was depleted by the time of first feeding, after which the larvae start to produce their own.