Transfer of antibody activity from immunized mother to embryo in tilapias

A. Mor, R. R. Avtalion

Research output: Contribution to journalArticlepeer-review

82 Scopus citations


Antibody activity specific to antigens (PSA, DSA and BGG) which served for immunization of mothers could be measured in extracts of 0‐9‐day‐old embryos spawned by these mothers, using a modified ELISA. The level of antibody activity in embryos varied according to the interval of time between mother immunization and spawning. This activity peaked between 14 and 37 days post‐immunization, then it underwent a significant gradual decrease. The activity of the extract was found to be specific only to the antigen which served for the mother immunization and could be adsorbed only by these antigens. The need of mother immunization against selected pathogens for the prevention of larvae and fry mortality is discussed.

Original languageEnglish
Pages (from-to)249-255
Number of pages7
JournalJournal of Fish Biology
Issue number2
StatePublished - Aug 1990


  • Oreochromis aureus
  • embryo immunity
  • fish immunoglobulins
  • immunity transfer
  • maternal immunity


Dive into the research topics of 'Transfer of antibody activity from immunized mother to embryo in tilapias'. Together they form a unique fingerprint.

Cite this