Chanagun Chitmanat

pp. 739 - 747

Abstract

Fish immunostimulants are important substances useful to control infectious fish diseases and are
substantially beneficial to the aquaculture business and environment.
This literature review covers the results of using fish immune modulators, including bacteria
and bacterial derivatives, adjuvants, chitin, glucan, vitamin, and other synthetic materials. These immunostimulants enhance the activities of phagocytotic cells, stimulate the immunological cells to create more
lysozymes and more antibodies, enhance the complement efficiency in fish and eventually increase the
abilities to prevent bacterial infection. These responses are able to prevent fish from succumbing to various
infectious diseases.

Keywords

• fish immunostimulant
• fish immunity
• fish diseases