The effects of dietary supplementation of garlic (Allium sativum) extract on the growth and disease resistance of African catfish, Clarias gariepinus was evaluated. Also in-vitro evaluation of susceptibility of fish-borne multidrug resistant (MDR) pathogenic bacteria to aqueous extract of garlic was done. Aqueous garlic extract exhibited inhibitory activity against MDR bacteria and the degree o...

Background: Aeromonas species are Gram-negative ubiquitous bacteria, facultative anaerobic rods that infect both invertebrates and vertebrates. Various fish species develop hemorrhagic disease and furunculosis due to Aeromonas spp. Aeromonas strains generate certain active compounds such as siderophores, which are the final products of non-ribosomal peptide synthetase (NRPS) activity. The prese...

Aeromonas hydrophila is one of the major pathogenic bacteria for fish and people. To develop an effective antimicrobial agent, we isolated a bacteriophage from sewage, named CC2, and sequenced its genome. Comparative genome analysis of phage CC2 with its relatives revealed that phage CC2 has higher sequence homology to A. salmonicida phage 65 than to A. hydrophila phage Aeh1. Here, we announce ...

bacteria usually cause disease in the gastrointestinal tract by colonization and growth in the gastrointestinal tract, where the micro organisms may invade the tissues of host or secretion of an exotoxin that is performed in food and then ingested by the host, examples of second group include: staphylococcal, bacillus cereus, clostridial (c.botulinum and c.perfringens type a) toxin. in this stu...

Abstract This review focuses on the characteristic of major fish bacteria, antimicrobial resistance and antibiotic substitution in aquaculture. Nowadays aquaculture represents fastest growing industry leading to use intensive semi-intensive methods resulting outbreaks bacterial diseases. Antibiotics are used treat prevent these diseases, which can cause an increase resistance. Many antibiotics ...

the effects of dietary supplementation of garlic (allium sativum)extract on the growth and disease resistance of african catfish, clarias gariepinus was evaluated. also in-vitro evaluation of susceptibility of fish-borne multidrug resistant (mdr) pathogenic bacteria to aqueous extract of garlic was done. aqueous garlic extract exhibited inhibitory activity against mdr bacteria and the degree of...

For the rapid identification and detection of Vibrio anguillarum, we have PCR amplification technique targeting gyrB region has been evaluated. We have designed twosets of PCR primers for the specific amplification of gyrB in V. anguillarum using single and nested PCR. PCRs specificity was demonstrated by successful amplicon from V. anguillarum DNA. The detection limit of the single PCRs and th...

Virulence gene expression in pathogenic bacteria is modulated by environmental parameters. A key factor in this expression is temperature. Its effect on virulence gene expression in bacteria infecting warm-blooded hosts is well documented. Transcription of virulence genes in these bacteria is induced upon a shift from low environmental to a higher host temperature (37°C). Interestingly, host te...