Showing 5 results for Huso Huso
Mir Hamed Sayed Hassan, , , ,
Volume 2, Issue 1 (6-2013)
Abstract
A 4 × 4 factorial design was conducted to quantify the optimumrncarbohydrate ⁄ lipid ratio to minimize the dietary protein level in growingrnbeluga, Huso huso (initial weight 891.9 ± 33.4 g, mean ± SD). Fish were fedrnwith sixteen experimental diets formulated to contain four protein levels (35,rn40, 45 and 50%) and four dietary carbohydrate ⁄ lipid ratios of 0.8, 1.1, 1.4,rnand 1.7 for 108 days. At the end of trial, there were no significant differencesrnin growth parameters among fish fed with 35, 40 and 45% protein levels. Nornsignificant difference in growth parameters and feed efficiency (FE) wasrnalso observed when dietary carbohydrate ⁄ lipid ratios decreased from 1.7 torn1.1 within the same energy level (P > 0.05). The highest carcass proteinrncontent was observed in fish fed 0.8 and 1.4 carbohydrate to lipid ratio (P
Ahmad Hasanpour Fattahi, Hojatollah Jafaryan, Alireza Khosravi, Hosna Gholipour Kanani,
Volume 3, Issue 1 (6-2014)
Abstract
The probiotic effects of Saccharomyces cerevisiae and Aspergillus niger on the feeding efficiency, body composition, ammonia excretion, blood serum enzymes and the intestinal microbiota of juvenile beluga, Huso huso was investigated. The fish (31.8±2.81g) were randomly allocated into 12 oval tanks at a density of 30 individuals per tank with three replicates for each treatment,. The fish were fed either a basal diet (as control) or the diet supplemented with S. cerevisiae and A. niger (2×106, 4×106 and 6×106 cells g-1) for 8 weeks. The results indicated that the probiotic supplemented diet at 6×106 (cells g-1) significantly improved FCR and other nutritional indicators compared to the control treatment (p<0.05). Significant improvements (p<0.05) were also observed in ammonia excretion and blood serum enzymes between treatments. Total viable fungus and Lactobacillus spp. count were significantly improved in treatment compared to control (p<0.05). These results indicated that S. cerevisiae and A. niger improved feeding performance and blood serum enzymes of beluga.
Frahmand Akhondnejad, Hojat Jafaryan, Rahman Patimar, Hossein Adineh,
Volume 9, Issue 1 (1-2020)
Abstract
Aims: The objective of this research was to investigate the effects of three commercial prebiotics A-Max, Celmanax and
Ultra (each of 0.5, 1 and 1.5 g/kg diets) on growth, feed performance and blood biochemical compounds of beluga juvenile.
Materials & Methods: 900 fish with average weight of 21.5± 0.89 gr feeding was performed in 9 treatments (which on with three replicate) for 60 days. Control treatment was without supplementation. Fish were fed to satiation triple daily of 5% body weight. At the end of this period, the feed and growth performance were measured.
Findings: There was a significantly higher final body weight in ultra 0.5 (90.00± 21.78 g) compared with control (37.50± 9.60 g). The highest and lowest of food conversion were in treatments control and ultra (0.5), respectively. The results showed that the highest Fat and protein efficiency ratio was obtained in
Ultra 0.5 (2.19± 0.77 and 7.37± 2.60) and lowest in control. Generally, the best treatments were in groups: Celmanax (dose of 0.5), A-Max (dose of 1.5) and
Ultra (0.5). In addition, after determining the proper dose, blood samples were collected fish in the above-mentioned treatments. Based on the results of blood biochemistry parameters, there were no significant difference AST, ALP and ALT activity, so that the highest amount was obtained in the control. There were no significant differences in protein and cortisol experiment groups.
Conclusion: The results showed that the use of prebiotics in juvenile sturgeon diet has positive effects on feed performance and blood biochemical parameters.
Fereshteh Oraei, Maedeh Talebi, Seyed Mohammad Jalil Zorriehzahra, Reza Safari, Seyed Ebrahim Hosseini,
Volume 10, Issue 1 (1-2021)
Abstract
Citrus peel is a natural source of antioxidants and the use of its natural extracts to improve the quality of fish is increasing. The effect of orange peel extract on the chemical and sensory properties of Huso huso fillet when refrigerated (4±1 °C) was investigated. In this study, fish fillets with aqueous solutions of ethanolic extract of orange peel (w / w 5%) or (5 ml of extract in 100 ml of solvent), orange peel extract (w / w 6%) and orange peel extract (w / w 7%) were tested as natural preservatives for 30 minutes. Control samples were immersed in distilled water for 30 minutes. Control and treated samples were packed with ethanolic extract of orange peel and stored for 15 days. Samples are then taken at regular intervals for chemical properties of pH, free fatty acid (FFA), peroxide (PV), thiobarbituric acid (TBA), total volatile nitrogen bases (TVB-N) and sensory evaluation (texture, color, odor and acceptance) were studied. Analysis of the results of chemical tests and sensory evaluation showed that orange peel extract maintains good quality characteristics and increases the shelf life of fish samples during storage at refrigerator temperature. 7% orange peel extract and then 6% and 5% orange peel extract significantly (P <0.01) delayed the oxidation and hydrolysis of fat in the samples that treated with the Orange peel extract.
Volume 18, Issue 121 (3-2022)
Abstract
Fish is one of the most important and valuable sources of protein, fat and energy, but it is very corruptible and will be corrupted faster than other meat dishes. The present study was carried out to determine the effect of Spirulina algae chitosan coating on maintaining the quality of Huso huso fresh fillet during storage in refrigerator. Fresh fillets of chitosan solution (1%) containing 1% algae extract, treated and stored in a refrigerator. Microbial and chemical tests including total bacterial count and psychrophilic bacteria, pH, TBA as well as sensory evaluation were performed periodically for all specimens and measured for DPPH .eagla For algae - containing coatings, the total bacterial load was 2.56×106 cfu/ml and on the fifth day it was still in acceptable range for human consumption, but in control samples, 3.81×107 cfu/ml it was five days that exceeded the limit. Serum bacterial levels for control treatment were significantly higher than that of extract containing chitosan coatings and TBA values were significantly higher in the control fillets than in the first treatment, while the pH values in the control sample with the treated sample, there was no significant increase. Current study showed that using algae extract containing chitosan coating can prevent bacterial growth in fresh fish fillets and maintain its sensory properties including texture, smell, color and general acceptance. And increased the fish storage period in the refrigerator.
