A total of 59 Lactobacillus isolates were isolated from 5 different fresh water fish such as Cat fish ( Clarias orientalis) , Hari fish (Anguilla sp), Rohu fish ( Labeo rohita), Jillabe fish (Oreochromis sp) and Gende fish ( Punitus carnaticus). Among the 59 isolates only 4 Lactobacillus isolates were selected for further study. Based on morphological and biochemical characteristics, the isolat...

This study was undertaken to investigate the effects of feeding rainbow trout (Oncorhynchus mykiss) broodstocks with different ratio of plant oils to evaluate the changes in antioxidant defense status in the progenies. In the experimental diets, fish oil was replaced with different combination of plant oils including corn oil, olive oil, sunflower oil, and coconut oil, to gain differen...

The effect of adding protein xanthophyll from lucerne (PX) on growth parameters and the redox profile of carp muscle Cyprinus carpio (L.) was studied. During a 10-week experiment, carp were kept in two types of tanks: Control, where fish were fed a commercial fish feed, and in experimental tanks (PX+), where the fish were fed the same fish feed with a 5% addition protein xanthophyll from lucern...

Study on the chronic effects of an organophosphate, chlorpyrifos inducing oxidative stress in freshwater culturable carp, Ctenopharyngodon idellus has been made on exposure to sub-lethal concentration (1.41μg/L and 2.44μg/L) of the pesticide for 15, 30 and 60 days. Antioxidants viz. catalase (CAT), superoxide dismutase (SOD), reduced glutathione (GSH), glutathione-s-transferase (GST) and lipid ...

introduction: cypermethrin causes its neurotoxic effect through voltage-dependent sodium channels and integral protein atpases in the neuronal membrane. brain and nerve damage are often associated with low residual level of pesticides. in vitro and in vivo studies have also shown that pesticides cause free radical-mediated tissue damage in brain. propolis has antioxidant properties. the main ch...

Peroxiredoxin (Prx) was previously known as a Cys-dependent thioredoxin. However, we unexpectedly observed that Prx1 from the green spotted puffer fish Tetraodon nigroviridis (TnPrx1) was able to reduce H2O2 in a manner independent of Cys peroxidation and reductants. This study aimed to validate a novel function for Prx1, delineate the biochemical features and explore its antioxidant role in ce...

Flavobacterium columnare is a bacterial pathogen causing high mortality rates for many freshwater fish species. Fish vaccination with a safe and effective vaccine is a potential approach for prevention and control of fish disease. Here, in order to produce bacterial ghost vaccine, a specific Flavobacterium lysis plasmid pBV-E-cat was constructed by cloning PhiX174 lysis gene E and the cat gene ...

Juvenile common carp (Cyprinus carpio) were used as a model to investigate acute toxicity and oxidative stress caused by silver nanoparticles (Ag-NPs). The fish were exposed to different concentrations of Ag-NPs for 48 h and 96 h. After exposure, antioxidant enzyme levels were measured, including glutathione-S-transferase (GST), superoxidase dismutase, and catalase (CAT). Other biochemical para...

The European sea bass (Dicentrarchus labrax) is an economically important fish native to the Mediterranean and Northern Atlantic. Its complex life cycle involves many migrations through temperature gradients that affect the energetic demands of swimming. Previous studies have shown large intraspecific variation in swimming performance and temperature tolerance, which could include deleterious a...