Dietary supplementation is an effective strategy for boosting the innate immune response in fishes. It involves the use of functional ingredients that bear the potential for mitigating the deleterious effects of chemotherapeutics (bioaccumulation and development of drug‐resistant pathogens), as a more ecologically responsible approach to fish farming. With the emergence of probiotics, prebiotics, synbiotics and herbal immunost...

MicroRNAs (miRNAs) are small non‐coding RNAs that control the expression of genes by targeting specific mRNAs. Data related to miRNAs are limited for fish species, with only 16 out of the 30 000 fish species enlisted in miRBase. In the present review, we have summarized the recent findings on the implication of miRNAs in the teleost reproduction with an emphasis on commercially important candidates. The information related to...