جستجوی مقالات مرتبط با کلیدواژه "خون" در نشریات گروه "شیلات"

This study was performed to evaluate the effect of a phytogenic additive (herbal supplement) at different levels on growth performance, blood indices and immune responses of Siberian sturgeon (Acipenser baerii) for 8 weeks. For this purpose, Bioherbal® phytogenic additive was added to the diet in four levels of 0, 1, 2 and 3 g/kg in diet in three replicates. A total of 120 Siberian sturgeons with a mean weight of 5.36±0.50 g were introduced into twelve 80-L round plastic tanks with a density of 10 fish per each tank. Results showed that final weight, total length, weight gain, specific growth rate, and body weight increase were significantly higher than in fish fed Bioherbal at 3 g (p<0.05). In this treatment, feed conversion ratio had the lowest value and showed significant difference (p<0.05). The survival rate in all groups was 100%. Significant differences (p<0.05) were recorded in hematological and immune parameters. The number of red blood cells, contents of hematocrit, hemoglobin and mean corpuscular volume (MCV) in fish fed Bioherbal at 2 g and the number of white blood cells, lymphocyte percentage, lysozyme and IgM values in Bioherbal 3 g showed significant differences (p<0.05). Generally, based on the obtained data, it can be concluded that Bioherbal as a phytogenic additive at 3 g can enhance feed efficiency as well as improve hematological indices and strengthen immune system in Siberian sturgeon.

Rearing of sturgeon is of great importance in Iran, and diet is one of its important factor. A lot of research has been executed on the nutrition of these fish, but more researches are needed to complete this knowledge. The purpose of this research was to investigate the effect of adding glycine to the diet on hematological parameters, protein concentration and plasma enzyme activity in beluga (Huso huso). For this purpose, the fish were fed diets enriched with 0 (control), 0.25, 0.5 and 1% glycine for 8 weeks. The results showed that the number of red blood cells, hematocrit percentage and hemoglobin concentration in 0.25% and 0.5% glycine treatment were significantly higher than the control (P < 0.05). Also, these treatments had lower alkaline phosphatase and aspartate aminotransferase activities than the control (P < 0.05). 1% glycine treatment showed a significant increase in total plasma protein concentration, compared to the control treatment (P < 0.05). Also, there was no significant difference in MCV, MCH, MCHC, albumin, globulin, ammonia, and alanine aminotransferase and lactate dehydrogenase activities among the treatments (P > 0.05).. Based on these results, adding 0.25-0.5% glycine to the diet of beluga can improve hematological indicators.

Fish transportation in the aquaculture industry is one of the causes of stress and is inevitable. For this reason, providing methods to reduce transportation stress can improve fish health. The aim of this study was to investigate the effect of adding thymol to water on biochemical parameters of common carp during transportation. For this purpose, common carp were transported in plastic bags containing 0 (control), 5 and 10 mg/L thymol (three plastic bags per concentration) for 3 hours. Plastic bags were filled with 4 liters water and 8 liters pure oxygen. Blood samples were taken from all treatments immediately after transportation and 24 hours after recovery. The results showed that fish transportation and thymol concentration had no effect on the activity of alanine aminotransferase, alkaline phosphatase, total protein, globulin, albumin, and thyroxin in the fish blood plasma. On the other hand, after transportation, blood aspartate aminotransferase and lactate dehydrogenase activity increased and blood triiodothyronine levels decreased. Thymol, especially at a concentration of 5 mg/L, reduced the effect of transport on the activity of aspartate aminotransferase, lactate dehydrogenase and blood triiodothyronine. These results show that thymol reduces the stress and metabolism of carp during transportation. Therefore, a concentration of 5 mg/L thymol is recommended for short-term transportation of common carp.

In recent years, leeches have been used to treat some diseases, extract many enzymes and substances that are effective in treating diseases. This research is aimed at determining the In recent years, leeches have been used in the treatment of some diseases, the extraction of many enzymes and substances effective in the treatment of diseases. This study was performed to determine the appropriate blood for sexual maturation and cocoon and larval production in oriental leech. For this purpose, 120 leeches with an average age of one week and an average weight of 0/1±0/04 in 2 treatments (feeding on camel and frog blood) and each treatment with 3 replicate were divided into 10-liter plastic containers. 100 individuals of frogs were used to feeding the leeches with its blood. To feed the rest of the leeches, the blood needed from the slaughterhouse was prepared. To feed the leeches, the blood reached a temperature of 37 to 38 degrees Celsius. For the first 48 hours after feeding the water, the plastic containers were replaced twice a day at a rate of 70%. Re-feeding was performed one month after the previous feeding and in 6 steps. In order to find out the sexuality of leeches, at the end of stages 5 and 6 of feeding, two leeches were randomly selected and described from each treatment. The results showed that the number of cocoons and larvae in camel blood-fed treatment was significantly higher than in frog-blood-fed treatment (p <0.05). The survival of camel-fed leeches was significantly higher than that of frog-fed blood (p <0.05). The results of this study indicate the effectiveness of feeding leeches with camel blood.

In this study, the effects of different levels of galactooligasaccharide prebiotics on growth performance, survival, and some blood biochemical parameters of Binni fish, Mesopotamichthys sharpeyi was investigated. 240 fish with weight of 12.11 ± 0.1 g were fed in four treatments with three replications including: control group, T1 (1% prebiotic), T2 (2% prebiotic), T3 (3% prebiotic) for 56 days. The results showed that the final weight of fish in T2 was significantly increased compared to the control and the other treatments (P<0.05). The feed conversion ratio (FCR) in treatments with prebiotics was significantly improved compared to the control (P<0.05). The feed efficiency (FE) increased considerably in the treatments with prebiotics compared to the control group (P<0.05). The protein content of fish body in T1 and T2 treatments was significantly higher than the control (P<0.05). Also, the lipid content of fish body in T2 was significantly lower than the control group (P<0.05). The amounts of protein and albumin in fish plasma increased compared to the control group. But, the amounts of triglyceride, cholesterol, LDL showed significantly reduction in T2 treatment compared to the control group (P<0.05). While, the amount of HDL significantly increased (P<0.05). This study showed that the use of galactooligosaccharide up to 20 g per kg diet leads to the improvement of the assayed biological indices.

In this study, the effect of feeding with turmeric-enriched diets was investigated on hematological and ionic parameters after transport in common carp. For this, the fish were fed diets containing 0, 0.5, 1 and 2% turmeric for 2 weeks and then transported in plastic bags for 3 hours. The results showed that transport decreased the number of red blood cells and the percentage of lymphocytes, and increased the number of white blood cells, the percentage of neutrophils, MCV, MCH and MCHC in the blood and increased the concentration of calcium, chloride and potassium in the plasma. Also, transport had no significant effect on hematocrit percentage, hemoglobin concentration, and percentage of blood monocytes. Addition of turmeric to the diet reduced the negative effects of transport in the fish and the best results were obtained in the treatment of 1% turmeric. Based on this study, it is concluded that dietary turmeric supplementation improves hematological parameters and health of fish after transportation and the level of 1% turmeric is recommended for common carp.

Sterlet fish (Acipenser ruthenus) is a sturgeon in a commercial river basin. Natural growth and immune stimulants have several advantages over artificial growth and immune stimuli, of which these include availability, less damage to the environment and the potential for production at a high cost-low level. This study investigated the effects of various levels of Combio multi-enzyme on growth performance, survival, immunity factors in 72 parts of A. ruthenus with an average initial weight (88.87 ± 4.45) gr in the form of 4 treatments with 3 replications in the roundabout of fiberglass ponds the volume of water was 100 liters. Daily feeding was carried out with 10% body weight of fish with four diets, 0 (control), 0.25, 0.75, 1 g of mulco enzyme combo per kg of food for 2 months. Biometrics were evaluated in 5 districts at the end of each period. The results showed that growth indices such as daily growth, specific growth factor and body weight gain did not differ significantly between treatments (p> 0.05). A more accurate biometric study between the periods showed that the third to fourth and first to fifth growth indices had a significant difference (p <0.05). Blood factors such as white blood cells, hemoglobin, hematocrit, MCH, neutrophils, lymphocytes and hormones such as cholesterol, total protein, albumin, ACH50, lysozyme, amylase, total immunoglobulin and immunoglobulin M had a significant difference among treatments (p <0.05).

Considering the agricultural activities near the fish farm and water bodies, intoxication of fish is likely; thus, the aim of this study was to evaluate the effect of flonicamid intoxication on blood ions concentration and gill and kidney damage in common carp. To this, after 96 h-LC50 determination, the fish were exposed to 10% of LC50 concentration (4.3 mg / l) and after 21 days of exposure, the blood, gill and kidney were taken. The results showed that flonicamid intoxication decreased chlorine and increased potassium concentrations in fish blood, but had no effect on sodium and calcium levels. In addition, the flonicamid exposure was caused numerous damages to the gills and kidney. In the gill, the secondary lamellar edema, secondary lamellar fusion and primary lamellar hyperplasia were observed in the gill. Also, the exudate and melanomacrophage accumulation and degeneration of renal tubules were observed in kidney of the pesticide-exposed fish. The results showed that flonicamid has serious effects on the gill and kidney tissues of carp. These injuries are responsible for some of the ionic changes in fish blood. Therefore, it is recommended that this pesticide is used in farms, care should be taken to prevent the pesticide from entering the water resources in order not to threaten fish health.

The aim of this study was to evaluate the effect of seasonal variations on some of the hematological and serum biochemical parameters on some 2-3 years' old great sturgeon cultured in brackish water pens for yearlong from autumn 2015 to summer 2016. At different seasons, after anesthetizing the fish with clove extract, blood sampling was done, from a total of 15 great sturgeon specimens were apparentlyat healthy condition in 3 separately pen's. Blood samples was analyzed by the routine method used in fish hematology. There were no significant differences in amount of the cortisol, mean corpuscular volume (MCV) and activity of Alanine aminotransferase (ALT) in the different seasons (p>0.05). The maximum WBCs, Activity of aspartate aminotransferase (AST) and alkaline phosphatase (ALP) were observed in summer (p<0.05).  </span>The maximum RBCs, hematocrit concentration, total serum protein were observed in spring (p<0.05). The maximum hemoglobin concentration, the mean corpuscular hemoglobin (MCH) and the mean corpuscular hemoglobin concentration (MCHC) were observed in autumn (p<0.05). The maximum level of glucose was observed in winter (p<0.05). In conclusion, the result of this study showed that the changes of temperature as a result of season transition may have an important role in the blood parameters of H. huso</em>, resulting that, at the same ecological conditions, any changes in environment temperature, in the water, affecting the blood cells indices in Beluga.</span>

This study was conducted to evaluate the effect of herbal supplement of Sangrovit on the growth performance, blood biochemical indices, survival and resistance to salinity stress in rainbow trout fry. Fish (1.509±0.011 g) were divided into four groups fed on diets containing Sangrovit in different levels: 0 (control), 0.05, 0.1 and 0.15 % for 45 days. Results showed that specific growth rate and body weight gain were significantly (P<0.05) different among the experimental groups, and highest levels of them were observed in treatment groups with Sangrovit. Feed conversion ratio and total protein decreased significantly in fish fed diets containing Sangrovit. On the other hand, there were no significant differences were observed in glucose and cholesterol levels among the treatments (P>0.05). Blood samples were obtained in four times after stress (first, third, fifth and seventh days) for evaluate hematocrit levels. Salinity significantly affected hematocrit levels (P<0.05). On the first day of after stress, the hematocrit levels significantly were increased in all groups (P<0.05). However, the hematocrit levels were decreased gradually in all groups since third day. Present study suggests that Sangrovit at 0.1% can effectively improve the growth performance and feed utilization in rainbow trout fry.