scholarly journals Could the Vitacel R200 improve the Immune Response and Hemato-Biochemical Parameters of Rainbow Trout (Oncorhynchus mykiss) challenged with Aeromonas hydrophila?

2020 ◽  
Vol 10 (03) ◽  
pp. 332-336
Author(s):  
Ali Kane ◽  
Nabeel Al-Sharafi ◽  
Sabah Hamad
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Aeromonas Hydrophila ◽  
Blood Cells ◽  
Biochemical Parameters ◽  
White Blood Cells ◽  
Control Group ◽  
Serum Total Protein ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Immune Parameters

The fermentable fiber, Vitacel R200 is industrial compound cellulose exerting many beneficial health effects at the hosts. In this study, rainbow trout (Oncorhynchus mykiss) fingerling (120 ± 4.5 grams) were fed dietary 1% (10 g/kg feed) Vitacel R200 for 7 weeks, then challenged with Aeromonas hydrophila. Two weeks after the challenge, hemato-biochemical and immune parameters in the challenged fish were studied. The lysozyme and complement activity, as well as, white blood cells (WBCs), hemoglobin (Hb%), percentage of neutrophil and eosinophil in the fish fed Vitacel were significantly increased compared with the control group. Furthermore, the serum total protein, albumin, Na+, K+, P, and Ca++ concentrations in the fish fed diet containing 1% Vitacel were significantly increased, while alanine aminotransferase (ALT), alkaline phosphatase (ALP), and aspartate aminotransferase (AST), as well as, cortisol, cholesterol, and glucose concentration were significantly decreased in comparison to the control group. These results concluded that dietary Vitacel could improve the hemato-biochemical and immune parameters, as well as, the stress response in O. mykiss infected with A. hydrophila.

scholarly journals Effect of dietary phytoextracts supplementation on growth performance and blood parameters of rainbow trout ( Oncorhynchus Mykiss W. ), cultivated in a recirculation system

2018 ◽  
Vol 16 (4) ◽  
pp. 292-299
Author(s):  
K. Georgieva ◽  
G. Zhelyazkov
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Red Blood Cells ◽  
Growth Performance ◽  
Total Protein ◽  
Blood Cells ◽  
White Blood Cells ◽  
Blood Parameters ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Recirculation System

The present research aimed to examine the effect of dietary phytoextracts supplementation on the growth performance, haematological (white blood cells, red blood cells, hemoglobin, hematocrit) and biochemical (glucose, urea, creatinine, total protein, albumin, ASAT, ALAT) blood parameters of rainbow trout (Oncorhynchus mykiss W.), cultivated in a recirculation system. The fish were divided into 6 groups: one control (C) and five experimental groups in whose food was added phytoextracts of curcumin (EC), paprika (EP), thyme (ET), oregano (EO) and garlic (EG). The inclusion of phytoextracts had no significant effect on growth parameters of fish from EC, EP, ET, EO and EG groups (P>0.05). Statistically significantly lower feed consumption per unit weight gain was observed in EO group vs C (Р<0.05). The phytoextract supplementation had significant influence on some of the haematological (white blood cells, red blood cells, hemoglobin) and biochemical (urea, creatinine, total protein, albumin, ASAT, ALAT) blood parameters of rainbow trout.

scholarly journals Growth performance and haematological and immunological indices of rainbow trout (Oncorhynchus mykiss) fingerlings supplemented with dietary Ferulago angulata (Schlecht) Boiss

2016 ◽  
Vol 85 (3) ◽  
pp. 231-238 ◽  
Author(s):  
Somayeh Bohlouli ◽  
Ehsan Sadeghi
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Growth Performance ◽  
White Blood Cells ◽  
Basal Diet ◽  
Immunoglobulin M ◽  
Control Group ◽  
Average Weight ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Red Blood Cell Count

In this study, the effects of Ferulago angulata extract on the growth, haematological, and immunological indices of rainbow trout (Oncorhynchus mykiss) fingerlings were evaluated. Basal diet was supplemented with 0 (control), 0.5, 1, and 2 g·kg-1 F. angulata and was randomly allocated to experimental fish of an initial average weight of 7.45 ± 0.02 g. After 8 weeks of experiment, the fish supplemented with F. angulata extract showed increased but non-significant (P > 0.05) growth performance. No significant differences were found between trial control groups in haematological indices such as red blood cell count, haematocrit, and haemoglobin, but there was a significant increase in white blood cells, lymphocytes, neutrophils and monocytes in the F. angulata extract groups (P < 0.05). Also, there were significant differences between the fish supplemented with dietary F. angulata extract and the control group regarding immunological indices, including immunoglobulin M, lysozyme, and classical and alternative complement pathway (P < 0.05). These findings suggest that the administration of F. angulata extract has a positive effect on the immunological indices and the immune system activity in rainbow trout fingerling.

scholarly journals Effects of Diets Containing Beta-Glucan on Survival, Growth Performance, Hematological, Immunity and Biochemical Parameters of Rainbow Trout (Oncorhynchus Mykiss) Fingerlings

2021 ◽  
Author(s):  
Mohammad Hossein Khanjani ◽  
Gholamreza Ghaedi ◽  
Moslem Sharifinia
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Growth Performance ◽  
Biochemical Parameters ◽  
Control Group ◽  
Average Weight ◽  
Beta Glucan ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Neutrophil Percentage ◽  
Significant Difference

Abstract This study aimed to investigate the effect of beta-glucan in rainbow trout’s diet on survival, growth performance, hematological, immunity and biochemical parameters. Rainbow trout (Oncorhynchus mykiss) with an average weight of 6.35 ± 0.09 were stocked in 30 fiberglass tanks with a volume of 200 liters. Four treatments including: control group (0%), 0.5, 1 and 2% of beta-glucan were considered for 8 weeks. The results showed that the survival and growth performance of rainbow trout in the control group were at the lowest level and showed a significant difference with other treatments. The highest percentage of hematocrit (47.9%), white blood cell count, neutrophil percentage (35.2%) was observed in the treatment with 2% beta-glucan. Also, the highest lysosomal activity (59.7 units’ mL− 1, IgM (54.7 mg dL− 1), C3 and C4 was obtained in 2% beta-glucan treatment. Biochemical parameters showed improvement in treatments fed with 1 and 2% beta-glucan. In general, the present study showed that 2% beta-glucan in the diet of rainbow trout improves growth performance, survival, hematological, immunity and biochemical parameters.

Effect of Dietary Ascorbate on the Concentration of Tissue Ascorbic Acid, Dehydroascorbic Acid, Ascorbic Sulfate, and Activity of Ascorbic Sulfate Sulfohydrolase in Rainbow Trout (Oncorhynchus mykiss)

1990 ◽  
Vol 47 (8) ◽  
pp. 1518-1525 ◽  
Author(s):  
Konrad Dabrowski ◽  
Reinhard Lackner ◽  
Cristine Doblander
Keyword(s):  
Ascorbic Acid ◽  
Rainbow Trout ◽  
Vitamin C ◽  
Oncorhynchus Mykiss ◽  
Dehydroascorbic Acid ◽  
Control Group ◽  
High Demand ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Dietary Treatments ◽  
Kidney Liver

The concentrations of ascorbic acid in several tissues of rainbow trout (Oncorhynchus mykiss) are significantly influenced by various dietary treatments. Ascorbic acid was taken up readily by erythrocytes, kidney, liver, intestine, spleen, and brain in fish fed an ascorbate supplemented diet (AA group), the concentration being from 1.5 to 14.8-fold higher than in fish fed a diet lacking ascorbate (control group). In fish fed a diet supplemented with an equimolar amount of ascorbic acid in the form of ascorbic sulfate (AS group) the ascorbic acid concentrations in kidney, intestine, and erythrocytes were significantly elevated above those of the control group. Ascorbic sulfate was found in kidney, liver, and intestine of the AS group, but not in other groups. In fish fed a diet devoid of vitamin C the ascorbic acid concentrations in kidney, liver, intestine, and spleen were signficantly lower than in fasting fish over the same period of time (28 d), suggesting a high demand for vitamin C in an actively feeding animal. Salmonid fish are therefore probably unable to utilize ascorbic sulfate sufficiently to prevent the appearance of vitamin C deficiency, and thus resemble scurvy-prone mammals in this respect.

Interactions among Antioxidant Defenses in Liver of Rainbow Trout (Oncorhynchus mykiss) Exposed to Cadmium

1993 ◽  
Vol 50 (1) ◽  
pp. 156-162 ◽  
Author(s):  
V. P. Palace ◽  
H. S. Majewski ◽  
J. F. Klaverkamp
Keyword(s):  
Ascorbic Acid ◽  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Blood Cells ◽  
Physiological Saline ◽  
Antioxidant Defenses ◽  
Glutathione Peroxidase Activity ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Cd Exposure ◽  
Erythrocyte Fragility

Rainbow trout (Oncorhynchus mykiss) (mean weight 180 ± 10 g) fed diets deficient in ascorbic acid, tocopherol, both, or neither were exposed to one of three cadmium concentrations (0, 2, or 4 μg Cd/L). After 181 d of exposure, liver and whole blood were sampled. Cadmium exposure was found to significantly increase the Cd content in liver, especially in fish fed a diet deficient in ascorbic acid. Hepatic stores of ascorbic acid decreased in fish exposed to Cd and in fish fed diets deficient in tocopherol and ascorbic acid. Depletion of tocopherol in liver occurred only in those fish fed a diet deficient in tocopherol and exposed to Cd. Superoxide dismutase activity in liver increased with Cd exposure and with dietary deficiencies of tocopherol and ascorbic acid, while catalase was inhibited by exposure to Cd alone. Glutathione peroxidase activity was unaffected by Cd but was lower in fish fed a diet deficient in both tocopherol and ascorbic acid. Erythrocyte fragility, measured by spontaneous hemolysis of red blood cells in physiological saline, was increased by Cd exposure and the deficiencies of dietary tocopherol and ascorbic acid.

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