A complex and dynamic community of microorganisms, play important roles within the fish gastrointestinal (GI) tract. Of the bacteria colonizing the GI tract, are lactic acid bacteria (LAB) generally considered as favorable microorganism due to their abilities to stimulating host GI development, digestive function, mucosal tolerance, stimulating immune response, and improved disease resistance. ...

The aquaculture industry is expanding to meet the daily requirements of humanity from high-quality seafood. In this regard, intensive aquaculture systems are suggested, resulting in high production but being challenged with immunosuppression and disease invaders. Antibiotics were used for a long time to protect and treat aquatic animals; however, continuous use led to severe food safety issues, ...

Real-time quantitative PCR (qPCR) was performed to elucidate the abundance of <i>Aeromonas hydrophila</i> and <i>Pseudomonas fluorescens</i>, which are among the most widespread fish pathogens in ponds. Both pathogens have three different breeding patterns, namely, (a) gibel carp (<i>Carassius auratus gibelio</i>), (b) yellow catfish (<i>Pelteobagrus fulvidraco</i>), and (c) black carp (<i>Mylopharyngodon ...

Probiotics administration in aquafeed is known to increase feed consumption and absorption due to their capacity to release a wide range of digestive enzymes and nutrients which can participate in digestion process and feed utilization, along with the absorption of diet components led to an increase in host’s health and well‐being. Furthermore, probiotics improve gut maturation, prevention of ...

The intestinal mucosal barrier plays a critical role in the maintenance of host health. In farmed teleost fish, the intestinal epithelium is challenged by a number of factors, leading to damage of the intestinal mucosal barrier. The pathogenesis of intestinal mucosal barrier damage in most farmed teleost fish has been associated with cell death, mainly including apoptosis, pyroptosis, necroptosis ...

Antimikrobielle midler har revolusjonert medisinen i det 20. århundre ved å gi effektiv behandling mot infeksjonssykdommer. Mikroorganismer har imidlertid evnen til å utvikle reistens mot slike stoffer. Bruk av antimikrobielle midler bidrar til utvikling av resistente stammer. Det er viktig å forsøke å hindre resistens mot antimikrobielle stoffer som vi er avhengige av for behandling av smittsomme ...

Ornamental fish trade represents an important economic sector with an export turnover that reached approximately 5 billion US dollars in 2018. Despite its high economic importance, this sector does not receive much attention. Ornamental fish husbandry still faces many challenges and losses caused by transport stress and handling and outbreak of diseases are still to be improved. This review will ...