Study of possibilities of replacement of fish meal by poultry by product in formulated diet of Huso huso

To regard to dramatic decreasing of pelagic fish and depending on fish meal for sturgeon Feeding a project with title on "Study of possibility of replacement of fish meal by poultry by product in formulated diet of Huso huso" in two faz (fingerling) and (Growth out) were carried out. In first faz, proximate composition of fish meal, poultry by product and diet ingredient were determined , thereafter Six test diets (contain 45% protein and 19 Mj kg^-1 energy) were prepared based on anchovy fish meal and poultry by-product substituted at levels of 20% (PBM_20), 40% (PBM_40), 60% (PBM_60), 80% (PBM_80) and 100% (PBM_100), respectively. Huso huso Fingerlings (28.42±0.17gr ± SD) were stocked in 18 fiberglass tanks and fed to satiation to eight week. Result indicated the highest final weight (FW), Weight gain (WG), Specific growth rate (SGR) and Protein efficiency ratio (PER) were belonged to control diet (350.52 ±21.86_gr),(1133.00 ±74.84%),(3.74±0.092 %per day) and (1.58 ±0.017) respectively. But No significant difference was detected between FM, PBM_20, PBM_40 and PBM_60 (P>0.05), Also, there were not significant difference in treatments for Feed efficiency Ratio between (PBM_0), (PBM_20), (PBM_40), (PBM_60) (PBM_80) respectively (P0.05).The best feed efficiency ratio belonged to fish fed PBM_40 that no significant differences with (PBM_20), (PBM_60) and (PBM_80) (P>0.05).a significant decrease of body lipid observed by increasing of supplementation of poultry by product in diets that lowest body lipid (6.6±0.16) were stabilized in (PBM_80) (P0.05). also hepatosomatc index were significantly increase by increasing of poultry by product in diets respectively that highest were observed in fish fed PBM100 (4.2±0.63) (P<0.05).Result of this investigation indicated that poultry by product had high potential for replacing of fish meal in fingerling and growth out Huso huso diet. Therefore suggested a investigation design for research about the effect of poultry by product on growth rate, body composition and immune system of Huso huso at long period for introduce a new replacer product Instead Of fish meal in sturgeon aquaculture industry

Study on macrobenthic communities in the range of fish cage-culture area (before breeding) in the southern Caspian Sea (Mazandaran coast-Kelarabad)

The abundance and biomass of benthic macroinvertebrates were studied in the place of fish cage culture in southern coasts of Caspian sea (Mazandaran waters- kelarabad). The goal of this study was to consider of fish cage culture effects on the abundance and biomass of benthic macroinvertebrates. The sampling was carried out in 3 stations in depth of 20 meter of Kelarabad waters monthly. In this study 7 species were identified belonged to 5 genus of 4 family. Totally 23442 sample of benthic invertebrates were counted that the lowest and highest abundance were in station 1(23.4%) and station 2(46.8%) respectively. The results of stations study showed that the highest abundance and biomass were in stations 2 and 3 with the average of 646 ± 1230.4 n/m^2 and 0.526 ± 1.001 gr/m^2 respectively. This coulld be respectively dependant to not settling of cage (witness station) and appearance of Cerastoderma glaucum because of its large body in station 1. The difference of abundance and biomass between different stations was not significant (p ›0.05). The study on abundance and biomass in different seasons showed that the highest abundance in autumn with the avarage of 888.13 ± 1371.58 n/m^2 belonged to Strblospio gynobranchiata and the highest biomass belonged to C. glaucum which was because of appearance of not native species of polychaeta and also the species with shell covering from bivalvia. The results showed that the specie of S. gynobranchiata from polychaeta including 93.3% of abundance was the dominant specie that could be related to appropriate ecological conditions for living and high adaptability. It was concluded that the abundance and biomass of benthic macroinvertebrates in station 1 was lower than other stations which was related to fish cage culture activity and its effects on benthic macroinvertebrates. So it is suggested that each mariculture activity in southern coasts of Caspian Sea should be carried out with regarding to environmental considerations and performance of comparative evaluation project of environmental effects

The feasibility study for culture of Salmo trutta caspius by brackish water

Caspian trout is valuable, Commercial, anadromous and endemic fish species in the Caspian Sea so that, researchers attention have been focused on this species. At the moment, only pay attention to stocks rehabilitation that fisheries organization releases more than 300,000 fingerlings to the rivers ends to the Caspian Sea. Importance of this study consist (1) introducing a new species to the aquaculture system and (2) provide breeders in this research. we used from 2 treatments that consist with density of 10 kg/m^3 and 20 kg/m3 with 3 replication. Results showed, culture of Caspian trout is suitable with density 10 kg/m^3, so that weight gain, SGR and Daily growth mean are better than treatment 2(15-20 kg/m^3

Survey on health status in aquaculture sturgeons centers (Mazandaran, Guilan And Golestan Provinces)

Study of survey health management and diseases in hatcheries and fish farms can help us to knowledge and application control methods such as: prevention, treatment and increase high levels of production in hatchery and farms, finally. This survey carried out from 2005 to 2008 for 4 years in sturgeon hatcheries and farms of Golestan province. Sturgeon fishes include Huso Huso, Ship sturgeon, Acipenser persicus collected and for virology, bacteriology, fungius and hematology examined. Also, physicochemical parameters measured and recorded in different stages of culture. Results of this study showed that all of samples in virology was negative and did not observe any doubetful causes. In bacteriology CFU was variation from 3/9 ×105 to 6/9×10. The most parasites that detected in this survey was Cocolanus espherolanus, Sceria binopsulus semiarmatus and Amphilina fuliacea that separates from Acipenser Percicus, especially. The results about hematology parameters some important hematological indices of ship sturgeon include: The total RBC for female and mail specimens measured as 5.3±1.5 ×10^5, 4.8±0.5×10^5 per mm^3 respectively. The amount of haematocrit and hemoglobin for female and mail determined: 34.3±2.8, 35±1.4 percent and 10.3±0.9, 8.9±0.8 gr/dl .The MCV: 216.3± 96.2, 736.5± 102.5, MCH: 720.2±309.5, 186±0.7 and MCHC: 30±0.8, 25.5±3.4 percent respectively.The total WBC were (female, male): 21320±1054, 20580±777 per mm^3 and neutrophil: 16.4±2.5, 17±1.4 percent and lymphocyte: 74.4±2.4, 73.5± 0.7 percent and eosinophil: 6±1.4, 6.4±0.5 percent, monocyte: 2.8±0.8, 3.5±0.7 percent. There was not any significant differences (p>0.05) between mentioned parameters in male and female (students t-test). Also evaluation of hematological parameters in bluga ( Huso huso) include: total RBC were (male , female) 5±0.3 ×105 , 4.9±0.6 ×105 per mm^3 ,respectively and hematocrit: 33.2±6.7 , 35.4±3.4 percent and hemoglobin: 11.2±1.5 , 12.2±1gr/dl and MCV: 669.9±172.2, 723.9±982.4 and MCH: 226.2±42.5, 249.5±35.4 and MCHC: 34.1±2.4, 34.6±3.6 percent respectively. The totals WBC were (male, female): 24800±707.1, 23042±1375.4 per mm^3 and neutrophil: 18.5±0.7, 21.4±1.1 percent and lymphocyte: 73.5±1.4, 68.4±1.1 percent and eosinophil: 5±2.8, 7±1.2 percent and monocyte: 3.5±3.5, 3.2±0.8 percent. According to statistically study the count of lymphocyte had significant difference between male and female fish and this count in male was higher than female. (p≥0.05)

The Determination of Bio-kinetic Coefficients of Crude Oil Biodegradation Using Pseudomonas Aeruginosa Bacteria

"n "n "nBackgrounds and Objectives: Oil pollution can be generated as a result of spillage, leakage, discharge, exploration, production, refining, transport and storage of crude oil and fuels in the environment. Consequently, many researchers have developed and studied the chemical, physical and biological methods to degrade crude oil. Among them, the biological treatments are the most interesting as they are simple and economical methods. The aim of this study was to determine biokinetic coefficients of crude oil degradation by pseudomonas aerogenusa. This microorganism was isolated in our previous work."nMaterials and Methods: In this study the bio-kinetic coefficients of crude oil biodegradation were evaluated. Pseudomonas aerogenusa bacteria which had been isolated from the soil sample taken from a gas station in our previous work were used in this study. This microorganism was cultured in the liquid medium containing crude oil as sole carbon source. Finally with determining the amount of microorganisms and crude oil concentration during biodegradation process, the bio-kinetic coefficients based on modified Monod equation were calculated."nResults: bio-kinetic coefficients obtained from laboratory studies are vital factors in industrial applications. As a result, the bio-kinetic study was performed to find bio-kinetic coefficients for biodegradation of crude oil using the isolated bacteria. The results showed that ,Y, k and were equal 0.107 , 0.882 , 9.39 and 169.3 respectively."nCoculusion:Our results showed that pseudomonas aerogenusa is usable for treatment of oily wastewaters in the full scale facility. Results of this study indicated bio kinetics confections

Comparison of 3-day and 7-day ciprofloxacin regimen for the treatment of uncomplicated urinary tract infection in women: A randomized double-blind clinical trial

Background: Urinary tract infections (UTIs) are among the most commonly bacterial infections in clinical practice. Almost half of all women experience at least one urinary tract infection in their lifetime. This study compared efficacy and safety of 3-day and 7-day ciprofloxacin regimen for the treatment of uncomplicated urinary tract infection in women. Patients and methods: A total of 76 patients were randomly assigned to two treatment groups. One group received ciprofloxacin, 250 mg twice a day for 3 days (n=39) and the other group received ciprofloxacin 250 mg twice a day for 7 days (n=37). Subjects were visited and assessed three times during the study period (baseline, end of treatment, and test for cure). Clinical and bacteriological responses to the treatment were compared between the two groups. Results: There was no significant difference between the two groups in terms of age distribution and clinical signs/symptoms during the baseline visit. There was no significant difference between clinical or bacteriological responses between the two groups. Three-day regimen of ciprofloxacin showed high microbiological eradication rate for E. coli (66.7) which was similar to the eradication rate observed for 7-day regimen (64.8). No statistically significant difference was found in adverse effects between the groups, except for nausea (p=0.041). Conclusion: A 3-day ciprofloxacin regimen appeared to be safe and effective for the treatment of UTI in women. Therefore, shorter therapy duration with ciprofloxacin can potentially improve patient compliance and decrease costs. ©2010 IDTMRC

Supplemental irrigation management of rainfed grapevines under drought conditions using the CropSyst model

Aim of study: To determine how much water should be used and when it should be applied in rain-fed grapevine using a cropping system simulation model (CropSyst), and also the economic analysis of supplemental irrigation for rainfed grapevine.Area of study: This study was conducted at the School of Agriculture, Shiraz University, Shiraz, Iran, in 2012, 2013 and 2014.Material and methods: The CropSyst model was calibrated to predict the rainfed yields of ‘Askari’ and ‘Yaghooti’ grapevines in different climates using four amounts of SI: 250 L (I1), 500 L (I2), 1000 L (I3) and 0 (I4), five SI times: single in March (T1), single in April (T2), single in March + single in April (T3), single in May (T4) and single in June (T5).Main results

Malathion removal by electrocoagulation process: Iron and stainless-steel electrodes, direct and alternating current and determining energy and electrode consumption and kinetic study

The aim of this study was to investigate the effect of electrocoagulation (EC) process for malathion removal from aqueous solution. Iron and stainless-steel rod electrodes were used in the electrochemical cell and effective operation parameters on the electrochemical process were studied. The results showed that with increasing reaction time, current density, removal efficiency of the malathion increased, but the initial concentration of malathion had a reverse effect on the malathion removal. The maximum removal efficiency was acquired at pH: 6 (94.6). In the inter-electrode dis-tance of 2 cm, the removal efficiency of malathion was 95.6 and 95.8 for iron and 92.7 and 88.1 for stainless steel rod electrodes using alternating and direct current, respectively. The maximum energy consumption was 0.91 and 3.12 kWh/m3 using iron rod electrodes, and 0.99 and 3.18 kWh/m3 by stainless steel rod electrodes for the alternating and direct current, respectively. Sludge produced in direct current mode is higher than alternative current mode. The pseudo-second-order model was better fitted for the removal of malathion by the EC process than the pseudo-first-order model (R2: 0.99). According to the results, this process is suggested as an effective and efficient method for removing malathion pesticide. © 2020 Desalination Publications. All rights reserved