A bioflocculant-producing bacterium, Bacillus megaterium SP1, was isolated from biofloc in pond water and identified by using both 16S rDNA sequencing analysis a Biolog GEN III MicroStation System. The optimal carbon nitrogen sources for SP1 were 20 g L-1 of glucose 0.5 beef extract at 30°C pH 7. bioflocculant produced strain under culture conditions applied into aquaculture wastewater treatment. removal rates chemical oxygen demand (COD), total ammonia (TAN), suspended solids (SS) reached...

In this study, the effects of arginine on growth, serum antioxidant levels, intestinal digestion physiology, protein synthesis, and expression inflammatory-related genes triploid juvenile rainbow trout (Oncorhynchus mykiss) were investigated. Five diets containing 0.86%, 1.65%, 2.10%, 2.85%, 3.50% fed to satiation triplicate groups 30 fish per tank for 8 weeks. The results showed that weight gain rate, specific growth efficiency ratio significantly increased. optimal dietary requirement was...

This study aimed to determine the effects of dietary sodium butyrate (NaB) on growth and gut health triploid Oncorhynchus mykiss juveniles (8.86 ± 0.36 g) fed a low fish meal diet for 8 weeks, including inflammatory response, histomorphology, composition functional prediction microbiota. Five isonitrogenous isoenergetic practical diets (15.00% 21.60% soybean meal) were supplemented with 0.00% (G1), 0.10% (G2), 0.20% (G3), 0.30% (G4), 0.40% NaB (G5), respectively. After feeding trial,...

This study estimated the effect of substituting fishmeal completely with cottonseed protein concentrate (CPC) in diet sturgeon (Acipenser schrenckii) on growth, digestive physiology, and hepatic gene expression. A control containing an experimental based CPC was designed. The conducted for 56 days indoor recirculating aquaculture systems. results showed that weight gain, feed efficiency, whole-body essential amino acids (EAAs) all decreased significantly group, while non-essential (NEAAs)...

This study aimed to assess the impact of incorporating rapeseed meal (RM) as a partial substitute for fish (FM) in diet cultured hybrid sturgeon ( Acipenser schrenckii ♀ × baerii ♂). A total 450 juvenile with similar weights were randomly assigned five dietary groups, each triplicates 30 per tank. For 12 weeks, FM was replaced varying percentages RM (0%, 25%, 50%, 75%, and 100%). Results indicated decreasing trend final body weight (FBW), gain, survival rates (SRs) ratio increased. Growth...

AIM:To investigate the therapeutic effects of resveratrol (RESV) as a free radical scavenger on experimental severe acute pancreatitis (SAP). METHODS:Seventy-two male Sprague-Dawley rats were divided randomly into sham operation group, SAP and resveratrol-treated group.Pancreatitis was induced by intraductal administration 0.1 mL/kg 4% sodium taurocholate.RESV given intravenously at dose 20 mg/kg body weight.All animals killed 3, 6, 12 h after induction model.Serum amylase, pancreatic...

This study aimed to evaluate the effects of dietary protein levels on growth performance, serum indices, body amino acid composition, and intestinal gene expression in juvenile hybrid sturgeon (

This study evaluates the effects of dietary Clostridium butyricum on growth performance and intestinal health in triploid rainbow trout (Oncorhynchus mykiss). Administered a 12-week trial, five isonitrogenous isolipidic feeds contained different C. levels [G1 (0), G2 (1.6 × 106 CFU/g), G3 (1.2 107 G4 (1.1 108 G5 (1.3 109 CFU/g)]. Significant enhancements performance, including improved feed conversion ratios specific rates group, were indicative enhanced nutrient utilization, corroborated by...

This study was conducted to determine the effects of dietary α-ketoglutarate (AKG) supplementation on antioxidant defense system and gene expression heat shock protein (HSP) 70 HSP 90 in hybrid sturgeons Acipenser schrenckii ♀ × A. baerii ♂ exposed ammonia-N stress. A 2 3 factorial experiment arranged, which each diet (0%, 1% AKG) randomly assigned 0.25 (control) 5 10 mg L−1 groups with three replicate aquaria for 72 h. The significantly increased serum ammonia concentrations intestinal Gln...

As an intermediate substance of the tricarboxylic acid cycle and a precursor glutamic synthesis, effect alpha-ketoglutarate on growth protein synthesis has been extensively studied. However, its prevention treatment pathogenic bacteria mechanism have not yet noticed. To evaluate effects intestinal antioxidant capacity immune response Songpu mirror carp, total 360 fish with average initial weight 6.54 ± 0.08 g were fed diets containing 1% for 8 weeks. At end feeding trial, challenged...

An 82-day study was conducted to assess the effect of dietary lipid levels on growth performance, feed utilization, deposition, and hepatopancreas lipometabolism large-sized common carp ( Cyprinus carpio ). Six isonitrogenous (300 g/kg protein) pelletized diets with different (30, 60, 90, 120, 150, 180 g/kg) were fed in triplicate fish groups 75 individuals (with an initial mean weight 247.00 ± 16.67 g). The results showed that there a significant increase gain (WG) rate (WGR), specific...

Cottonseed protein concentrate (CPC) is a potential non-food source for fishmeal replacement in fish feed. However, high inclusion level of CPC diets may have adverse effects on the metabolism and health carnivorous fish. This study aimed to investigate as alternative diet rainbow trout Oncorhynchus mykiss based growth performance, blood metabolites, intestinal health. Five isonitrogenous (46% crude protein) isolipidic (16% lipid) were formulated: control (30% fishmeal) four experimental...

An 8-week feeding trial was conducted to evaluate the dietary arginine requirement of juvenile hybrid sturgeon. Seven isonitrogenous and isolipidic diets were formulated contain graded levels ranging from 1.74% 3.54% (dry weight). The results indicated that fish fed with 1.76% diet had lower specific growth rate (SGR) feed efficiency ratio (FER) than 2.64% 3.24% (p < .05), presented highest SGR. whole-body crude protein content or 2.93% .05). Compared diet, 2.36% significantly increased...

This study was conducted to estimate the effects of dietary protein and lipid levels on growth, body composition, gonadal development activity liver metabolic enzymes brown trout Salmo trutta fario broodstock. Ten diets were formulated containing five different (360, 390, 420, 450 480 g/kg) two (90 180 g/kg). The experiment a completely randomized 5 × 2 factorial design. fish with an initial weight 462.53 ± 45.40 g cultured in spring water flow-through system for 77 days. growth performance...

This study aimed to demonstrate the effects of dietary glutathione (GSH) on growth, intestinal antioxidant capacity, histology, gene expression, and microbiota in juvenile triploid rainbow trout ( Oncorhynchus mykiss ). Different diets (G0-control, G100, G200, G400, G800) containing graded levels GSH (0, 100, 200, 400, 800mgkg −1 ) were fed triplicate groups 30 fish (initial mean weight 4.12±0.04g) for 56days. G400 had significantly improved gain feed conversion rate. Based broken-line...