Genomics‐driven prophylactic measures to increase streptococcosis resistance in tilapia

Abstract

Streptococcosis caused by Streptococcus agalactiae and S. iniae is a significant problem that affects the success of tilapia aquaculture industries worldwide. In this critical review, we summarize the applicable practical strategies which may effectively enhance the world tilapia aquaculture development. Recently, the effect of vaccination and selective breeding programmes has been recognized as valuable tools to control the target disease and other consequent negative impacts caused by chemical and drug application. Advances in sequencing and molecular technologies are vital helpful factors with which to develop robust vaccines and increase the selective breeding programme's precision against streptococcosis. The genomic selection for streptococcosis‐resistant tilapia strains and crucial genomic application for genomics' contribution to the development of novel Streptococcus vaccine, comparative genomics approach identifying vaccine candidates by reverse vaccinology, and next‐generation vaccine design were described. Information from our review is encouraging for practical implementation of the development of vaccination and genomic selection in tilapia for streptococcosis resistance, which may be vital factors to sustain the world tilapia aquaculture industry effectively.

Effect of Moringa oleifera, Bacillus amyloliquefaciens, and Their Combination on Growth Performance, Digestive Enzymes, Immunity, and Microbiota in Nile Tilapia (Oreochromis niloticus)

“…At the genus level, Peptostreptococcaceae was detected in all intestinal samples. In fact, Peptostreptococcaceae infections have become a major problem in tilapia farming and contribute to enormous damage [80]. The abundance of Peptostreptococcaceae in the MO-CON and MO-Ba groups was significantly lower than those in the CON-CON and CON-Ba groups.…”

Biofilm formation and auto-aggregation abilities of novel targeted aqua-probiotics

“…Fish vibriosis is widespread in the seas and brackish waters, affecting both marine and coastal freshwater fish of various species, including salmon, cod, eel, herring, perch, and flounder [71]. Along with fish vibriosis, Aeromonas septicemia, edwardsiellosis, columnaris and streptococcus, as well as a number of other diseases, are largely responsible for economic losses in aquaculture production [72][73][74][75][76][77][78][79][80][81][82][83][84].…”