| 摘要 |
<p>Globally aquaculture production has continued to upsurge during the past few decades. Major losses incurred in aquaculture are related to several factors like disease, floods, oxygen depletions, predation, chemical poisoning, miscellaneous causes etc. But by far, disease is the most significant factor that poses threat to the global aquaculture production. Hence, the consequent interest in understanding fish diseases and their treatment/prevention strategies. There are some practical difficulties and undesirable consequences associated with approaches like sanitary prophylaxis, disinfections and chemotherapy with a particular emphasis on the use of antibiotics, vaccines and immunotherapy. Therefore, the usage of immunostimulants has been found to be valuable in controlling fish diseases and thus can be immensely useful in the large scale culture of finfish. Many natural products from marine sources are endowed with promising immunomodulating activities, thus representing invaluable leads in the drug discovery. In this context, marine macroalgal extracts or their byproducts are preferred since they contain several phenolic, polyphenols, alkaloid, quinone, terpenoid, lectine, and polypeptide compounds, many of which have been shown to be very effective bioactive compounds. The aim of this presentation to highlight the efficacy of dietary administered marine macroalgal methanolic extract as an exceptional immunoprophylatic measure for finfish health management by describing its immunostimulatory (non-specific & specific responses) and disease protecting (resistance) properties. Even the pathogen infected fishes could also be cured by using this product as immunotherapeutic measure.</p> |
