This experiment was conducted to investigate the effects of dietary arginine levels on growth performance, body composition, serum biochemical indices and resistance ability against ammonia-nitrogen stress in juvenile yellow catfish (Pelteobagrus fulvidraco). Five isonitrogenous isolipidic diets (42% protein 9% lipid) were formulated contain graded (2.44%, 2.64%, 2.81%, 3.01% 3.23% diet), by supplementing L-Arginine HCl. Seven hundred with an initial average weight 1.13 ± 0.02 g randomly...

An 8-week feeding trial was conducted to evaluate the effects of sodium butyrate (SB) on growth, digestive enzymes, body composition and nutrient retention-related gene expression juvenile yellow catfish (Pelteobagrus fulvidraco). Five isonitrogenous isolipidic diets (420 g/kg protein 90 lipid) were formulated contain 0 (control), 250, 500, 1,000 or 2,000 mg/kg SB. Triplicate groups 40 fish (BW = 1.26 ± 0.01 g) per tank (300-L cylindrical fiberglass tanks) for each diet fed apparent...

The present research evaluated the effects of four feeding stimulants on feed intake (FI), growth performance, body composition, serum biochemical parameters, digestive enzyme activities and appetite-related gene expression for juvenile GIFT tilapia. Five experimental high plant-based diets (with 0, 0.4 g kg−1 dimethyl-β-propiothetin (DMPT), 0.6 dimethylthetin (DMT), 1.8 tryptophan (Trp) 6 betaine (Bet), respectively supplemented) were fed to tilapia (Oreochromis sp.) (3.34 ± 0.01 g) 8...

The objective of this study was to assess the effects condensed tannins (CT) on growth performance and intestine health juvenile Japanese seabass (Lateolabrax japonicus). Four diets were formulated contain 0 (CT0), 100 (CT100), 200 (CT200) 400 (CT400) mg/kg pure CT isolated from grape seed. Quadruplicate groups 20 fish fed apparent satiation two times daily during 56-days feeding trial. At end trail, blood samples collected analyse serum metabolites, intestinal enzyme activity...

The aim of this study was to investigate the effects sodium butyrate (SB) supplementation on growth performance, antioxidant enzyme activities, inflammatory factors, and hypoxic stress in largemouth bass ( Micropterus salmoides ). Diets were supplemented with different doses SB at 0 (SB0), 0.5 (SB1), 1.0 (SB2) 2.0 (SB3) g/kg. experiment performed after 56 days culture. results showed that compared SB0 group, final body weight, weight gain rate protein deposition SB3 group significantly...

An 8-week feeding trial was conducted to determine lysine requirement of juvenile yellow catfish (Pelteobagrus fulvidraco) by formulated diets containing crystalline l-lysine. Six isonitrogenous and isoenergetic (405 g kg−1 protein, 18 kJ g−1 gloss energy) fish meal together with soybean protein concentrate as sources oil lipid were formulated. Crystalline l-lysine added into the six acquire concentrations 17.3, 21.8, 26.0, 31.3, 35.5 41.9 g kg−1 dry diets, respectively. Mixture amino acid...

An 8-week feeding trial was conducted to evaluate effects of replacing fish meal (FM) with black soldier fly larvae (BSF) on growth performance, feed utilization, and plasma parameters, for juvenile yellow catfish, Pelteobagrus fulvidraco. Six isonitrogenous isolipidic diets were prepared substituting the FM protein BSF in following amounts: 0 (control group), 10% (BSF10), 15% (BSF15), 20% (BSF20), 25% (BSF25) 30% (BSF30). Three replicate groups catfish (initial weight 1.20 ± 0.01 g) stocked...

Condensed tannins (CT) have been observed to be beneficial maintain glucose homeostasis and improve carbohydrate utilization for livestock, whereas little information is available about the effects of CT on glycometabolism fish. Three diets were formulated contain approximately 15 % (G1), 39 (G2), G2 supplemented with 0.1 CT. A total 225 juvenile Lateolabrax japonicus randomly assigned 3 groups (triplicate tanks per group) 25 fish in each tank fed apparent satiation during 56-d feeding...

Although effects of dietary condensed tannins (CT) on growth and health fish have been evaluated, limited information is available shrimp. This study investigated the CT growth, nutrient digestibility, antioxidant response intestinal histomorphology Litopenaeus vannamei. A 56-day feeding trial was conducted by randomly distributing 600 shrimp into 15 tanks with 40 per tank fed five diets containing 0 (G0), 0.5 (G0.5), 1 (G1), 2 (G2) 4 (G4) g/kg grape seed respectively. Shrimp were to...

The effects of dietary supplementation Clostridium butyricum (CB) on growth performance, serum biochemistry, antioxidant activity, mRNA levels immune-related genes and resistance to hypoxia stress were studied in largemouth bass. Feed with CB0 (control, 0 CFU/kg), CB1 (4.3×108 CB2 (7.5×108 CB3 (1.5×109 CFU/kg) CB4 (3.2×109 CB for 56 days, then a 3 h hypoxic experiment was performed. results showed that significantly increased the WGR (weight gain rate), SGR (specific PDR (protein deposition...

Summary Oyster is an abundant resource from ocean, which contains high content of protein. In the present study, oyster ( Crassostrea talienwhannensis ) meat was digested with three proteases including papain, neutrase and alcalase respectively derived hydrolysates were fractionated using a series ultrafiltration membranes (molecular weight cut‐offs 10, 5, 3 1 kDa). The resultant peptide fractions evaluated for antioxidant activity 1,1‐diphenyl‐2‐picrylhydrazyl (DPPH) assay reducing power...

The effects of dietary Clostridium butyricum (CB) on growth performance, intestinal morphology, tight junction proteins, and immune-related gene mRNA levels in Pelteobagrus fulvidraco were investigated. fish fed with diets containing 0 (control, CB0), <math xmlns="http://www.w3.org/1998/Math/MathML" id="M1"> <mn>4.8</mn> <mo>×</mo> <msup> <mrow> <mn>10</mn> </mrow> <mn>6</mn> </msup> </math> (CB1), id="M2"> <mn>4.5</mn> <mn>7</mn> (CB2), id="M3"> <mn>5.1</mn> <mn>8</mn> (CB3), id="M4">...

An 8-week feeding trial was conducted to evaluate effects of replacing fish meal (FM) with black soldier fly larvae (BSF) on growth performance, feed utilization, and plasma parameters, for juvenile yellow catfish, Pelteobagrus fulvidraco. Six isonitrogenous isolipidic diets were prepared substituting the FM protein BSF in following amounts: 0 (control group), 10% (BSF10), 15% (BSF15), 20% (BSF20), 25% (BSF25) 30% (BSF30). Three replicate groups catfish (initial weight 1.20 ± 0.01 g) stocked...

The effects of nucleotides on growth, and physiological antioxidant parameters were evaluated by feeding Pelteobagrus fulvidraco diets supplemented with 0, 0.2, 0.4, 0.6, 1.0 or 1.5 g kg−1 respectively. All nucleotide groups showed higher specific growth rate, feed efficiency, protein efficiency ratio, whole-body lipid content serum cholesterol concentrations than the control group, but significant difference was seen only between fish from group group. Whole-body ash in 0.6 liver superoxide...

A 63-day feeding trial with 640 juvenile L. maculatus was conducted to assess the effects of dietary CT on serum metabolites, antioxidant and immune response, liver histomorphology glycometabolism enzyme activities fish. Four diets were formulated contain 0 (T1), 1 (T2), 2 (T3), g/kg plus 4 polyethylene glycol (PEG) (T4). PEG specifically binds neutralize activity. Fish randomly distributed into 16 tanks (4 per group 40 fish tank) fed apparent satiation twice daily. Results indicated that T2...

An 8-week feeding trial was conducted to investigate the effect of supplemental dietary zinc sources on growth performance and carbohydrate utilization juvenile tilapia Smith 1840, Oreochromis niloticus × O. aureus. The goal compare bioavailability two sources, sulphate (ZnSO4) or methionine (ZnMet), by using practical basal diets with 350 g kg−1 (C350) 400 (C400) carbohydrates based wheat as source. results showed that fish fed a diet supplemented 60 mg Zn from either ZnSO4 ZnMet had...

This study was performed to assess the effects of dietary aflatoxin B1 (AFB1) on growth, antioxidant and immune response, digestive enzyme activities, intestinal morphology Lateolabrax maculatus during a 56-day feeding trial. Four diets were formulated including 0, 0.1, 0.5, 1.0 mg/kg AFB1. Each diet randomly assigned 3 fish tanks with 40 per tank. Results indicated that fish’s final body weight, weight gain rate, specific growth feed intake, condition factor, viscerosomatic index,...

Chinese seabass ( Lateolabrax maculatus ) is a popular carnivorous fish with delicious taste. Although the feed value of condensed tannins has been well documented for L. , information about effects hydrolyzable (HTs) on growth and health limited. This study was conducted to assess dietary HTs performance, body composition, intestinal digestive enzyme activities, serum metabolites, antioxidant immune response, intestine liver morphology . A total 640 were randomly divided into four groups...