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Showing 4 results for Moghanlou
The effect of dietary yeast cell wall (Saccharomyces cerevisiae) and cinnamon essential oil (Cinnamomum verum) supplementation on growth indices, blood biochemstry and innate immunity of rainbow trout (Oncorhynchus mykiss) fingerlings

Volume 6, Issue 3 (12-2017)
Abstract
The present study was to evaluate the effect of dietary yeast cell wall (Saccharomyces cerevisiae) and cinnamon essential oil (Cinnamomum verum) supplementation on growth indices, serum biochemical parameters and immunity of rainbow trout (Oncorhynchus mykiss) fingerlings. Using a 2×2 factorial experiment, 276 fingerlings (9.67 ± 1.20 g) were fed four different experimental diets (including control diet, diet supplemented with 1.5 % yeast cell wall or 1 % cinnamon essential oil and a diet containing 1.5 % yeast cell wall and 1 % cinnamon essential oil) for a 60-day period. At the end of the trial, specific growth rate and weight gain significantly decreased in fish fed diet supplemented with 1% cinnamon essential oil (P≤0.05), however, feed conversion ratio was not statistically differed amongst treatments (P>0.05). Fish fed diets containing 1% cinnamon essential oil had the highest hepatosomatic index (P≤0.05). The highest red blood cell count and blood hemoglobin content belonged to group fed diet containing 1% cinnamon essential oil (P≤0.05). Simultaneous feeding with yeast cell wall and cinnamon essential oil significantly resulted in higher hematocrit value. Serum alkaline phosphatase activity was significantly increased in group fed diet containing 1.5% yeast cell wall. Dietary cinnamon essential oil supplementation also resulted in lower alkaline phosphatase, aspartate aminotransferase and gamma glutamyltransferase activity of serum (P≤0.05). The highest serum total protein and globulin content and lysozyme activity were observed in fish fed diet only supplemented with yeast cell wall (P≤0.05). In conclusion, dietary cinnamon essential oil and yeast cell wall inclusion resulted in improved immunity of rainbow trout fingerlings.
Evaluation of ionic and biochemical changes in ovarian fluid of Caspian brown trout (Salmo trutta caspius Kessler, 1877) broodstock fed with vitamin C, astaxanthin and soybean lecithin supplements and its effect on sperm motility

Volume 11, Issue 2 (5-2022)
Abstract
In this study, the effects of different levels of dietary supplementation with vitamin C, astaxanthin and lecithin on ionic (K+, Na+, Ca2+ and Mg2+) and biochemical (Total protein, cholesterol and glucose) indices of ovarian fluid, also its effect on sperm motility duration in Caspian brown trout (Salmo trutta caspius) were investigated. For this purpose, nine experimental diets: C0A0L0 (0 mg kg-1 vitamin C, 0 mg kg-1 astaxanthin and 0% soybean lecithin), C300A50L0, C700A100L0, C0A50L6, C300A100L6, C700A0L6, C0A100L9, C300A0L9 and C700A50L9 were formulated and broodstocks (2.51±0.05 kg) were fed for four months. After maturation and stripping, ovarian fluid was separated for ionic and biochemical indices. To evaluate sperm motility, 1 μl of milt was placed under a microscope with fresh water (as a control treatment) or ovarian fluid of experimental fishes. Sperm motility was measured with a chronometer. Results showed that the highest amounts of Na+, K+, Ca2+ and Mg2+ ions were obtained in ovarian fluid of C300A100L6, C300A100L6, C0A100L9 and C300A100L6, respectively, which were significantly different from C700A50L9 (p<0.05). Also, the highest levels of protein, cholesterol and glucose were observed in C700A50L9, C0A50L6 and C0A100L9 treatments, which were significantly different from C0A0L0 treatment (p<0.05). Lowest duration of sperm motility was obtained in fresh water (43.96±2.25 seconds) which was significantly different from other treatments (p<0.05); however, the highest sperm motility was observed in C300A100L6 and C0A100L9 treatments (80.76±2.03 and 80.7±1.76 seconds, respectively).

Performance Response of a Spark Ignition Engine to Adding Natural Gas to Gasoline on Lean-Burn Condition in 10 Compression Ratio
S.k. Yekani, E. Abdi Aghdam, F. Sadegh Moghanlou,
Volume 20, Issue 6 (June 2020)
Abstract
Considering the disadvantages of gasoline and natural gas as mono-fuel in SI engines has made the researchers improve the performance and reduce the pollutant as the advantages of the application of dual-fuel engines. On the other hand, lean-burn in the engine may lead to reduced pollutants. In the present study various mixtures of gasoline and natural gas with the gasoline as the dominant fuel, including 100, 87.5, 75 and 62.5% in weight-base gasoline and the rest natural gas (respectively named as G100, G87.5, G75, G62.5) in lean-burn condition with 0.9 as the equivalence ratio are investigated. At 1800rpm and 10 compression ratio, cylinder pressure variations of 350 successive cycles of each mixture were recorded using a single-cylinder research engine. First of all, the raw data were processed and the optimized knock-free advance for each individual mixture was determined. Later on, the performance of all four mixtures in the corresponding optimized advance was explored. The results revealed that by increasing the amount of natural gas in the mixture, the CO pollutant reduced however the amount of HC initially increased which was followed by a decreasing trend. The amount of NOx had a direct relation with the appearance of the natural gas. In the lean-burn condition, a better performance was observed for G75 in comparison with G100 and the other mixtures.

On the Experimental and Numerical Droplet Generation in the Ordinary and Modified Micro channels with Oval Obstacle
F.s. Moghanlou , E. Ghazanfari Jajin, M. Vajdy Hokmabad , Sh. Jafargholinejad ,
Volume 20, Issue 9 (September 2020)
Abstract
The study of micro-scale fluid behavior is known as microfluidics, which has received much attention in many scientific fields. In the current research, the droplet generation in the micro channel has been studied numerically and experimentally. Two micro channels were fabricated by soft lithography method and the results of generated droplets were compared. The process of droplet formation was investigated using two fluids including water (dispersed fluid phase), and oil (continuous fluid phase) at different flow ratios. The images of the droplet formation and crossing steps in the micro channels were analyzed using image processing. The results showed that by increasing the ratio of dispersed to continuous flow, the size of droplets was increased, the droplet formation distance (the distance of the produced droplets) was increased, and the frequency of droplets generation was decreased. Also, the proposed new geometry leads to the production of smaller droplets with higher production frequencies. In the basic geometry, the droplet diameter was observed to be between 117 and 700 micrometers while in the proposed geometry, the diameter of droplets is between 46 and 466 micrometers. In the proposed geometry, the size of the produced droplets decreases, and the production frequency increases.

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