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Study on mesh breaking strength of conical lift net before and after usage
M. Moshkabadi
gorgin_s@yahoo.com
1
S. Gorgin
sgorgin@gau.ac.ir
2
H. Fazli
hn_fazli@yahoo.com
3
A.A. Ghareaghaji
sgorgin@gmail.com
4
Gorgan University of Agricultural Sciences and Natural Resources
Gorgan University of Agricultural Sciences and Natural Resources
Caspian Sea Ecological Research Institute
Amirkabir University of Technology
Conical lift nets catch kilka fish in Iran. Conical lift nets are usually made of polyamide 6.6 (nylon) with 210D/ 9 number. One of the main problems of fishermen is determining the right time to change fishing nets. Unfortunately, due to lack of data they do not change their nets at the right time. Data were analyses using and The mean values of breaking strength data were compared using one-way ANOVA and Duncan's test. The results showed that there is significant differences between new nets and nets which is used for 10 months (P<0.05).
http://isfj.ir/article-1-1372-en.pdf
Caspian Sea
Conical lift net
Sprat Fishing
Net strength length
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article
Measurement of some heavy metals concentration in live feed commonly used in aquaculture
Z. Hashemi Hosseinabadi
akhlagh_2000@yahoo.com
1
S. Soltanian
mostafaakhaghi@gmail.com
2
M. Akhlaghi
akhlaghi@shirazu.ac.ir
3
school of vaterinary medicine, shiraz university, shiraz, iran 71441-69155
school of vaterinary medicine, shiraz university, shiraz, iran 71441-69155
school of vaterinary medicine, shiraz university, shiraz, iran
The aim of the current investigation was to determine the concentration of some heavy metals in a number of aquatic invertebraes commnly used as live feed in aquaculture. For this goal, samples of blood worm, sludge worm, earthworm, gammarus, shelled snail, freshwater ghost shrimp and tiny marine shrimp were prepared from aquatic environment or from imported live feeds. Samples were digested chemically and the atomic absorption were recorded as µg/g dry weight. Results showed that the highest level of heavy metals concentration were detected in live feeds as follows: iron (213.4±10.2), cadmium (1.15±0.013) and nickel (20.97±3.6) in earthworm; zinc (105.71±5.8), chrome (19.63±5.3) in sludge worm; copper (37.34±4.2) in freshwater ghost shrimp and lead (24.71±4.7) in tiny marine shrimp respectively. It is proposed that high rates of heavy metals detected in some of live feeds in the present study may eventually have a severe negative impact on fish and human health conditions. Therefore, it is suggested that upper limit concentration of these elements be defined as an import health standard for every permission of importation of live feeds.
http://isfj.ir/article-1-1643-en.pdf
Heavy metals
Aquatic invertebrates
Live feed
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Effect of astaxanthin on growth, body chemical composition and some blood serum biochemical indices in grey mullet,Mugil cephalus Linnaeus, 1758
H. Rigi Ghazagh
hamideh_rgh@yahoo.com
1
A. Aberomand
aberoumandali@yahoo.com
2
S. Ziaienezhad
p.akbari@yahoo.com
3
P. Akbary
paria.akbary@gmail.com
4
This experiment was conducted to evaluate the effect of astaxanthin on the growth performances (final weight (FW), specific growth ratio (SGR) and condition factor (CF)) feed indices (feed conversion rate (FCR), voluntary feed intake (VFI) and protein efficiency ratio (PER)), body chemical (protein, fat, moisture and ash) and some blood serum biochemical parameters (total protein, glucose, triglyceride and cholesterol) of Mugil cephalus for 60 days. The experiment was conducted in a completely randomized design with 120 of Mugil cephalus (with average weight of 11.77±0.07g) in 4 treatments and 3 replicates (n=10 in each replicate) and included: control group without using astaxanthin, an another groups (treatment 2, 3 and 4) the amounts of astaxanthin were 50,100 and 150 mg/kg food. The results showed that at the end of experiment, the highest FW (4.22±0.11g), DGI (1.77±0.51%), the lowest FCR (0.95±0.05), the highest SGR, PER and CF were observed in the diet containing 150 mg /kg astaxanthin which showed a significant difference compared with control group (P<0.05). Also, the highest FW and total protein and the lowest triglyceride and cholesterol were observed diets containing 100 and 150 mg /kg astaxanthin. The lowest crude fat was observed in treatments containing astaxanthin which showed a significant difference compared with control group (P<0.05). in Finally, the present findings revealed that diet containing 100 and 150 mg/kg astaxanthin could improve growth, feed performances, carcass quality and blood chemical parameters in Mugil cephalus.
http://isfj.ir/article-1-1621-en.pdf
Mugil cephalus
Astaxanthin
Carcass composition
Growth parameters
Blood biochemical parameters
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article
Effect of fish meal replacement with sunflower meal on growth indices and body composition of common carp (Cyprinus carpio) fingerlings
K. Javid Rahmdel
ka.javidr@yahoo.com
1
H. Allaf Noveirian
navi@guilan.ac.ir
2
B. Falahatkar
falahatkar@guilan.ac.ir
3
A. Babakhani Lashkan
babakhani@guilan.ac.ir
4
University of Guilan
University of Guilan
University of Guilan
University of Guilan
The present study was conducted to determine the effect of fish meal replacement with sunflower meal on growth performance, feed efficiency and body proximate composition of common carp fingerlings. Five experimental diets with replacement levels of 0, 25, 50, 75 and 100% of fish meal with sunflower meal were formulated with equal protein, fat and energy contents. Fish meal proportion of control diet was 28%. Fish with average weight of 3.03 ± 0.36 g were distributed in 15 fiberglass tanks. After 10 weeks of feeding by experimental diets, growth performance and feed efficiency were evaluated and 6 fish per tank were taken for body composition analysis. According to the results, highest final weight was derived in 25% treatment (p<0.05), although differences in 50 and 75% were not significant compared to control (p>0.05), but in 100% treatment significant decline in growth and feed efficiency was observed (p<0.05). Also, there was significant difference in body composition including moisture, protein and fat (p<0.05), but ash content showed no significant difference (p>0.05) among treatments. Results of this study showed, it is possible to replace fish meal with sunflower meal up to 75% in common carp fingerlings diet without negative impacts on growth performance, feed efficiency and body composition.
http://isfj.ir/article-1-1657-en.pdf
Substitution
Plant ingredients
Protein utilization
Cyprinids
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article
Studing the effect of aqueous extract of the Persian Gulf carpet anemone (Stichodactyla
haddoni) on breast cancer cell line in vitro
Z. Moghadasi
ziba_mg2000@yahoo.com
1
Sh. Jamili
jamilishahla@yahoo.com
2
D. Shahbazzadeh
shahbazzadeh@yahoo.com
3
N. Mosaffa
yasamaryan@gmail.com
4
K. Pooshang Bagheri
k_bagheri@pasteur.ac.ir
5
Department of Marine Biology, Faculty of Marine Sciences and Technologies, Science and Research Branch, Islamic Azad University. Tehran, Iran
Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization
Biotechnology Research Center, Medical Biotechnology Dept., Venom and Biotherapeutics Molecules Lab., Pasteur Institute of Iran. Tehran, Iran
Department of Immunology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences. Tehran, Iran
Biotechnology Research Center, Medical Biotechnology Dept., Venom and Biotherapeutics Molecules Lab., Pasteur Institute of Iran. Tehran, Iran
Numerous proteins, peptides, and chemical agents in the venom of venomous marine animals are potentially useful biologically active molecules with pharmacological properties. The main goal of this research was to study the cytotoxic effects isolated crude venom from the Persian Gulf sea anemone, Stichodactyla haddoni against Breast, and Human embryonic kidney cell lines in vitro through using MTT assay. Samples of S. haddoni were collected from coastal waters of Lark island Persian Gulf the south of Iran. The extraction of Aqueous from tentacle was performed. The cell line was cultured in complete tissue culture medium. These cells were exposing in presence of different Serial dilution 100 to 0.78 μg of venom extract in duration time 24 hour. Analysis of statistical for cytotoxic activity of crude venom on cell lines this study showed that activity was similar together in almost all doses(Pvalue <0. 05). IC50 of crude venom against breast, and normal cell lines was observed at 4.13, 117.8µg respectively. With increasing extract concentration, death of cells on cells increased.The extraction induced more lethality on breast cell line than normal cell lines. Therefore, crude venom S.haddoni can be considered as a strong preventive grow agent against cancer cell lines especially breast cancer and with low or without toxicity on human normal cells
http://isfj.ir/article-1-1664-en.pdf
Stichodactyla haddoni
Crude extract
Cytotoxic activity
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Investigation of some reproductive characteristic of Carasobarbus luteus in Karoon River
M. Biria
mehdi.biria@yahoo.com
1
N. Javadzadeh Pourshalkoohi
nargesjavadzadeh@yahoo.com
2
S.A. Hoseini
asa_hoseini@yahoo.com
3
M. Velayatzadeh
mv.5908@gmail.com
4
Carassobarbus loteus fish, one of the Barbus species and native to southwestern Iran, have been identified in the domestic water in the rivers and wetlands of Khuzestan Province. This study was performed characteristic reproductive biology of Carassobarbus luteus in Karun River. Monthly catches from February 2012 to April 2013 at three stations in Aqili desert- of Shushtar from the Khuzestan Province. 385 samples of Carassobarbus luteus were collected from the study area. In this study, length frequency of fish entire 161.57±23.89 mm and the weight frequency 63.8±35.46 gr. The highest and lowest levels of gonadal index for the month of February (10.629±5.638) and December (0.986±0.560), respectively. In this study was identified 183 males and 180 females and 22 Carassobarbus loteus undetected in Karun River. Average oocyte diameter in sexual stages was II, III, IV and V, 13.818, 15.091, 16.265 and 16.2 mm, respectively. Maximum diameter of fish eggs were observed in February (18.52 mm) and minimum diameter of oocytes in December (13.88 mm). Mean absolute fecundity of Carassobarbus luteus were calculated 5754.59±7 and the average relative fecundity of fishes 53.30±1.03. According to this research has been done upstream spawning season because of differences with other species Barbus can be geographic location length and weight of the fish. Also this species have two peaks of spawning in October and February, so the possibility of being asynchronous spawn.
http://isfj.ir/article-1-1490-en.pdf
Reproduction
Biology
Carassobarbus luteus
Karun River
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article
Study on catch spatial changes and classifying of beach seine cooperatives in
Iranian coast of the Caspian Sea
H. Fazli
hn_fazli@yahoo.com
1
G. Daryanabard
daryanabard@gmail.com
2
The objective of the present study was classification of beach seine based on catch during the years 2009-2012. In the present study the catch of 123 beach seine in three provinces; Guilan, Mazandaran and Golestan, for each effort and species (Rutilus frisii kutum, Liza spp., Cyprinus carpio, Rutilus rutilus, Vimba vimba, Chalcalburnus chalcoides, Shads, Aspius aspius, Barbus sp, Abramis brama, Stizostedion lucioperca, Salmo trutta caspius, Esox lucius and Silurus glani) were used as input data. According to the results, among catch of 14 species/groups, kutum represented the highest proportion of total catch at 66.24%, followed by mullet, carp and shads with 27.42.81, 1.31 and 4.26% of total catch. Applying complete linkage, a hierarchical cluster analysis, the 123 beach seines were grouped into 3 individual clusters. First cluster was included 8 and second and third clusters were included 25 and 90 beach seines, respectively. Third cluster had lowest catch and these beach seines located in east and west coastline of Iranian water of the Caspian Sea.
http://isfj.ir/article-1-1517-en.pdf
Clustering
Bonyfishes
Catch
Beach seine
Caspian Sea
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article
Monitoring water quality and eutrophication phenomenon of Azad Dam using Iranian Water Quality Index and Carlson\'s Trophic State Index
A. Makhloogh
asieh_makhlough@yahoo.com
1
H. Nasrollahzade
hnsaravi@gmail.com
2
F. Parafkande
parafkandeh@hotmail.com
3
H. Fazli
hn_fazli@yahoo.com
4
R. Mirzaie
mirzaeirahman@yahoo.com
5
H. Hosseinpoor
hoseinpour_hamid@yahoo.com
6
A.R. Keihansani
7
M. Doostdar
8
Water reservoirs are an important to the supply of drinking water and agriculture. In Iran, study of water quality in the dam has been considered in recent years. This study was conducted to determine water quality of Azad Reservoir (Kordestan-Sanandaj) based on Iranian water quality (IRWQI) and Carlson trophic (TSI) indices. Sampling was carried out at five stations during different months in 2015-2016. Results showed that mean (±SE) of NO3, NH4, TP, PO4, DO%, pH, EC, SDD, TH, BOD5, COD and Chl-a were observed 0.21±0.01, 0.048±0.004, 0.030±0.001, 0.016±0.001 mg/l, 114±3 %, 7.89±0.37, 290±40 µS/cm, 2.00±0.14 m, 138±1, 2.18±0.19, 9.28±1.13 and 4.73±0.73 mg/l, respectively. Result showed that trophic status of Azad dam was mesotrophic based on chl-a parameters and eutophic to hypertrophic based on other variables (TP, SDD, DO%) at bottom layers of some stations. Mean of Carlson trophic status was represented mesotrophic (high quality) at Azad dam. Based on IRWQI, water quality of dam was classified excellent quality. Although, mean of indices was suitable for drinking water and agriculture activities but due to decline water quality and increased trophic levels in some months, it is necessary to apply appropriate management strategies for maintaining of water quality of the reservoir.
http://isfj.ir/article-1-1709-en.pdf
Iranian Water Quality Index
Trophic State
Azad Dam Reservoir
Sanandaj
Kurdistan
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Effects of different methods of cooking on mineral and vitamin (A and E) content of yellow fin sea bream (Acanthopagrus latus) fish fillets
D. Alipoor
davood.alipoor67@yahoo.com
1
M. Javaheri Baboli
mehranjavaheri@gmail.com
2
L. Roomiani
l.roomiani@yahoo.com
3
The aim of this study was to evaluate the effect of cooking on the content of minerals and vitamins yellow fin seabream fillets on the baking process. In this study fillets of yellow fin seabream (Acanthopagrus latus) with three methods include steaming, frying and grilling the (grill a) the amount of vitamins (a and E) and minerals (iron, phosphorus, copper, zinc, calcium, magnesium, potassium, sodium) was conducted with a sample of crude compared Grdyd.bray measured amounts of vitamin and mineral content Vitamins high performance liquid chromatography (HPLC) method for measuring atomic absorption spectrophotometry was used minerals. The comparison of all the minerals in samples cooked with raw samples, showed no significant changes (p˂0 /05).The content of vitamin A in the cooked samples, compared to the raw samples decreased significantly (p˂0 /05).the lowest amount of vitamin A were observed in fried samples (66/0 ± 6/7 mg/100gr wet weight ) (p˂0 /05). The content of vitamin E in all cooked samples, compared to the raw samples decreased significantly (p˂0 /05)and the lowest levels of vitamin E was observed in grilled samples (02/0 ± 293/0 mg/100gr wet weight). The results showed that three cooking methods including steamin and grilling and frying caused a insignificant change in mineral content but effect of these three methods of cooking on the content of vitamin a and E in fish fillets yellowfin seabream (Acanthopagrus latus) was different.
http://isfj.ir/article-1-1592-en.pdf
Yellowfin Seabream
Acanthopagrus latus
methods of cooking fish
minerals
vitamin A
vitamin E
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article
Toxicity of some permeable and non-permeable cryoprotectants on common carp (Cyprinus carpio) embryos
S. Keyvanloo
Skeivanloo@yahoo.com
1
M. Sodagar
sudagar_m@yahoo.com
2
M. Mazandarani
mazandarani57@gmail.com
3
Knowledge of cryoprotectants toxicity is one of the prerequisites for the design of fish embryo cryopreservation protocols. In order to study the effects of cryoprotectants toxicity, common carp (Cyprinus carpio) embryos at half-epiboly and heartbeat stages were selected and exposed to pronase E, type XIV of Streptomyces griseus, (2 mg/ml in Ringer solution) for 5 min. Permeabilized embryos were immersed in: three permeable cryoprotectants, dimethyl sulfoxide (DMSO), methanol (MeOH) and propylene glycol (PG) in concentrations ranging from 1 to 4 M; and one non-permeable cryoprotectant, sucrose (in concentrations of 10%, 15% and 20%) for 5 and 15 min. After these treatments, the embryos were washed and incubated until hatched. The toxicity of the cryoprotectant was assessed by the hatching rate. The results showed that there was a significant decrease of hatching rate in both developmental stages with increased concentration and duration of exposure. In addition, MeOH was the least toxic permeable cryoprotectant, followed by PG and DMSO. Prolonged exposure to sucrose significantly reduced hatching rate, especially at the heartbeat stage. With the increasing of the embryonic development (from half-epiboly to heartbeat stage) sensitivity to cryoprotectants were decreased.
http://isfj.ir/article-1-1669-en.pdf
Common carp (Cyprinus carpio)
Embryos
Toxicity
Cryoprotectants
Permeability
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article
Optimizing the chemical composition of fish fillets and blood biochemical parameters of common carp (Cyprinus carpio) using various levels of commercial probiotic Lactobacillus (Lactobacillus acidophilus) in the diet
F. Baesi
baesi.farideh@gmail.com
1
A. Aberomand
aberoumandali@yahoo.com
2
S. Ziaienezhad
ziaeinejad@bkatu.ac.ir
3
M. Javaheri Baboli
4
In this study, the effects of lactobacillus probiotic on chemical composition and blood biochemical parameters were studied. A total of 243 fish, with two treatments with probiotic concentration of zero (control, C), 103CFUg-1 (Treatment A) and 106CFUg-1 (Treatment B) were carried out. The results showed that fat content of fillet fish in group B the highest and lowest percentage in group A was assigned to itself, that it is in both treatments showed a significant difference compared to group C. Sturgeon Group C has the lowest ash content than the fish were fed with probiotics. A maximum amount of moisture in the treatment of treatment B was the lowest it belongs to a group C were significantly different (p <0.05). Patients with the highest percentage of protein than other treatments but there was no significant difference. Most cholesterol and triglycerides in the treatment of B and A was the lowest of the treatment. During the testing period but decreased total serum protein albumin increased. Accordingly, it can be suggested that the use of probiotics to improve the nutritional value of common carp
http://isfj.ir/article-1-1628-en.pdf
Probiotic
Lactobacillus commercial
Chemical composition
Blood biochemical parameters
Common carp (Cyprinus carpio)
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article
Effects of different protein restriction and realimentation on growth performance and body composition of fingerling Common Carp (CyprinusCarpio)
H. Sanchooli
sanchooli@yahoo.com
1
H. Oragi
hoseinoraji@yahoo.com
2
A.S. Keramat
amirkolai@yahoo.com
3
K. Jani Khalili
jannikhalili@yahoo.com
4
In this study, the effects of protein restriction in the diet and re-feeding with complete diet on growth performance and body composition of fingerling common carp (Cyprinus carpio) were studied during 8 weeks. Common carp fingerlings with an average initial weight (20/09 ± 0/07) in seven experimental groups were fed with three replications. Treatment A: 8 weeks were fed diet with 32% protein (control group), for treatments of B, C, D, E, F and G respectively the protein restriction phase was considered one week, two weeks, three weeks, four weeks, one week within three weeks of feeding the diet containing 16% protein as dietary protein restriction Highest final weight, body weight increase, percentage of body weight gain, feed conversion efficiency and specific growth rate was observed in group C and the lowest was observed in group E. Highest feed conversion ratio was observed in treatment C which significantly higher than treatment D and E (p<0/05). Highest protein efficiency ratio was observed in treatment F which showed no significant difference between treatments C and G (p>0.05) but with other treatments were significantly different (p<0/05).none of the treatments ash did not show a significant difference together (p>0/05).Highest of the moisture content of the carcass observed in treatment E which not significantly different with treatments F and G (p>0/05) but showed significant differences (p<0/05) with other treatments. Also highest carcass protein and fat was levels in treatment D and F were observed. In the end it can be concluded that the more protein during long periods of limitation, the ability of fish to compensate for the slowdown, but will be less than the length of the limitation period is less protein, the better fish can compensate for the lack.
http://isfj.ir/article-1-1584-en.pdf
protein restriction
Compensatory growth
Body composition
Growth Indicators
Common carp (Cyprinus carpio)
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article
Study on primary production with emphasis on phytoplankton biovolume and chlorophyll-a in the southern Caspian Sea-Goharbaran region
A. Makhloogh
asieh_makhlough@yahoo.com
1
H. Nasrollahzade
hnsaravi@gmail.com
2
F. Eslami
fr_eslami1689@yahoo.com
3
A. Keihansani
keyhansani@yahoo.com
4
F. Vahedi
vahedi_fariba@yahoo.com
5
Phytoplankton biovolume and chlorophyll-a concentrations are of major concern in primary productivity (PP) estimatiors in aquatic ecosystems. The goals of the paper are: study of chlorophyll-a concentration and its relations to variations of some phytoplankton community structure parameters and abiotic factors (environmental and nutrients matters) in costal waters of Caspian Sea- Goharbaran region in 2013-2014. Monthly water samples were collected from different layers (surface, 5 and 10m) in three depths (5, 10 and 15 m). Result showed increasing trend of phytoplankton biovolume from spring into winter (except in summer). The minimum and maximum mean (±SE) values of chlorophyll-a recorded in spring (0.39± 0.05) and autumn (4.56± 0.23) mg/m3, respectively. The Change of seasonal taxonomic phytoplankton pattern showed important role in relationship between chlorophyll-a cells content and abiotic factors. The effect of temperature (in summer and autumn), phosphorous (in spring), nitrogen (in summer) and silicon (in spring and winter) on decoupling between chlorophyll-a and biovolume were found by determining their correlation with the residuals of the regression between the two parameters (chlorophyll-a and biovolume). As conclusion, the decoupling observed between the phytoplankton biovolume and chlorophyll-a concentration the need to suitable select and caution of the two PP estimators and algal blooms prediction particularly in the cage and pen culture sites. Since the rapid changes in the chlorophyll-biovolume relationship could lead to significant errors in the explanation of results and unexpected field observations.
http://isfj.ir/article-1-1726-en.pdf
Primary productivity proxy
Chlorophyll-a
Phytoplankton biovolume
Goharbaran region
Caspian Sea
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article
Histopathological study as bio-indicators for evaluation of water quality in rainbow trout fish farms along the Baram Springs of Lordegan
S. Mahmoudi
mahmoudi.s931@gmail.com
1
M. Banaee
mahdibanaee@yahoo.com
2
P. Shoukat
shoukat@bkatu.ac.ir
3
A. Noori
nooryahmad@gmail.com
4
L. Mousavi Dehmoredi
lalehmosavi84@yahoo.com
5
Department of Aquaculture, Faculty of Natural Resources and the Environment, Behbahan Khatam Alanbia University of Technology, Iran
Department of Aquaculture, Faculty of Natural Resources and the Environment, Behbahan Khatam Alanbia University of Technology, Iran
Department of Aquaculture, Faculty of Natural Resources and the Environment, Behbahan Khatam Alanbia University of Technology, Iran
2. Hormozgan University, Marine Science and Technology Faculty, Aquaculture Department, Bandar Abbas, Iran
Department of Aquaculture, Faculty of Natural Resources and the Environment, Behbahan Khatam Alanbia University of Technology, Iran
The purpose of this study was to evaluate histopathological changes in gills, spleen, liver, kidney and intestine of farmed rainbow trout in four different stations along with Barm Spring (Lordegan, Iran). In this study, at least 15 fish from each farm were captured and following autopsy, sampling was carried out from the gills, liver, spleen and intestine of fish. After tissue sectioning, samples were stained with hematoxylin and eosin. Tissues were studied with a 400X magnification. Gill lamella stick together, gill hyperplasia, exfoliation of gill epithelium, epithelial necrosis and hypertrophy and swelling of gill lamellae, hypertrophy and liver fat degeneration, glomerular and collecting duct of urine degeneration, increase in the lumen space, shrinking the glomerular as well as an increase in melanomacrophage centers (MMC), disorganization of ellipsoids in the spleen, necrosis of epithelial cells, exfoliation of the mucous layer of intestine were the major histopathological alterations observed in the fourth (less than 20% of the group) and the third (a few of fish) group. The results of this study showed that these alterations may be due to an increase in the chemicals in downstream water. Therefore, these histopathological changes could be used as an appropriate biomarker to water quality monitoring.
http://isfj.ir/article-1-1632-en.pdf
Histopathology
Water quality
Biomarker
Rainbow trout
Barm Spring
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article
Effects of arginine, phenylalanine and tryptophan deficiency in diets on growth factors and whole body proximate of Sobaity seabream juvenile (Sparidentex hasta)
J. Ghafle Marammazi
jmarammazi06@gmail.com
1
M. Yaghoubi
m.yaghoubi@ut.ac.ir
2
O. Safari
omidsafari@ut.ac.ir
3
Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organzation (AREEO), Ahwaz, IRAN.
Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organzation (AREEO), Ahwaz, IRAN.
Ferdowsi university of mashhad. Fisheris department
On this study effects of reducing arginine, phenylalanine and tryptophan amino acids in diets of Sobaity seabream in a constant level (40%) on growth, nutritional indices, whole body chemical proximate and amino acids, was assessed. For these purposes four different treatments in triplicate was used during 42 days in base of feeding with semipurified diets containing crystalline amino acids. The control diet was without any deficiency, the arginine (ARG), phenylalanine (PHE) and tryptophan (TRP) diets were deficient in arginine, phenylalanine and tryptophan respectively. Crystalline amino acids were used to formulate diets precisely with desired amounts of deficiency. In fish fed ARG diet, just two factors including nitrogen retention and percentage of weight gain decreased in comparing with control group (P > 0.05). But in PHE and TRP treatments all the growth and nutrition factors including final weight, weight gain, specific growth rate, feed consumption, protein efficiency and nitrogen retention decreased significantly regarding to the control group (P > 0.05). The experimental treatments affect whole body proximate regarding to the control by increasing whole body moisture in PHE, reduction of gross energy in all treatments and reduction of Crude lipids in TRP and PHE (P > 0.05). Reduction of whole body protein in ARG treatment showed using more protein rather than lipids as a source of energy in this group of fish. Reduction of whole body lipid in all treatments regarding to the control group showed some disorder in lipid metabolism. In spite of arginine, phenylalanine and tryptophan deficiency in diets, the amounts of these amino acids in fish whole body did not decreased that showed amino acids sparing effect for these three essential amino acids happened in fish body. The results of the current study showed that reduction of one single essential amino acid from diet have strong effects on other amino acids retention and consequently reduces protein synthesis and growth.
http://isfj.ir/article-1-1618-en.pdf
Arginine
Phenylalanine
Tryptophan
Amino acids deficiency
Sobaity seabrem
Sparidentex hasta
per
IFSRI
ISFJ
1026-1354
2322-5998
2017-07
26
2
153
162
article
Comparative study of the growth of microalgae Chlorella sp. in marine water and non-sterile wastewater
Sh. Bagheri
kati.061169@gmail.com
1
Z. Masoomizade
zmasoomi@yahoo.com
2
Chlorella is important green algae that can be used for bioremediation of wastewaters. It can highly tolerate adverse environmental condition. Wastewaters contain high levels of nutrients which can be used as appropriate mediums for algal culture. In this study the effects of using vitamins on the growth of microalgae Chlorella sp. were investigated in marine water and wastewater using various mediums including Guillard, Conway, TMRL and B complex medium. Culture mediums with seawater and wastewater had 5 and 6 different treatments, respectively. Each treatment was replicated tree times. According to the investigations it was found that there are significant differences in Chlorella growth in sterilized seawater, between the medium with Gillard vitamins and Conway vitamins and medium without vitamin and also between Conway medium and other treatments, including culture mediums containing vitamin compounds and no vitamins, while are not significant between the treatments with vitamin compounds and as well as between B vitamins medium and medium without vitamin in seawater. Significant difference was not found between treatments in non-sterile wastewater (p>0/05). Therefore, adding vitamin compounds or using Conway medium did not lead to a significant increase in the growth of Chlorella sp. in non-sterile wastewater.
http://isfj.ir/article-1-1610-en.pdf
Chlorella sp.
Aquaculture
Vitamins
Wastewater.
per
IFSRI
ISFJ
1026-1354
2322-5998
2017-07
26
2
163
167
article
Efficiency of sewage treatment lagoon on pollution load reduction of Gomishan shrimp farm effluent in Golestan Province
A. Khodashenas
khodashenas.karim@gmail.com
1
A.A. Hedayati
hedayati@gau.ac.ir
2
R. Ghorbani
rasulghorbani@gmail.com
3
A. Hoseini
Hoseini_abbas@yahoo.com
4
M. Saghali
mehrdadi2009@gmail.com
5
Gorgan Univ
Gorgan univ
Gorgan univ
Gorgan univ
Gorgan
This research was conducted on shrimp farms complex in the northern of Gomishan city, Golestan province. In order to reduce water pollution, around 30 hectares of sedimentation lagoon was constructed on the way of the main outflow channel of shrimp farm. For this project, three sampling stations were considered at the entrance of the shrimp farm, entrance of the lagoon (before entering the lagoon) and way out of the lagoon during the last 3 months of shrimp farming (at the end of August, September and October 2015). Physicochemical parameters including EC, BOD, NO3 and PO4 were measured. The amounts of BOD, nitrate and phosphate ions were not significantly different (P>0.05) at three sampling stations which indicated that the impact of shrimp farming on these factors was not severe. The amounts of these factors at the entrance of the farm were the lowest and at the entrance of the lagoon were the highest. The amounts of these parameters were reduced in lagoon outflow. However, all of these changes were not significantly different from each other (P>0.05). In general, Gomishan shrimp farming with this volume of production and the 30 hectares lagoon is not a serious threat for Gomishan wetland and the Caspian Sea ecosystem. But if the area of shrimp farms increases, some solutions should be found for wastewater treatment because of the increasing possibility of wetland pollution.
http://isfj.ir/article-1-1747-en.pdf
Caspian Sea
Golestan Province
Lagoon
Effluent Sewage
Gomishan Shrimp Farms
per
IFSRI
ISFJ
1026-1354
2322-5998
2017-07
26
2
169
172
article
Investigating the effect of Caraway (Carum carvi) on some growth indexes and body approximate composition of Beluga, Huso huso (Linnaeus; 1758) fingerlings
M. Yasemi
Yasemi_m@yahoo.com
1
A. Sarpanah
sarpanah5050@gmail.com
2
M. Mahmoudi Khoshdarehgi
mahsaiut2000@yahoo.com
3
M. Parsa
mehranparsa85@yahoo.com
4
Agricultural Research, Education and Extension Organization, Tehran, Iran
Agricultural Research, Education and Extension Organization, Tehran, Iran
Young Researchers and Elite Club, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, Iran
Young Researchers and Elite Club, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, Iran
In this study, in order to investigate the effect of Caraway (Carum carvi) on growth parameters and body approximate composition of Huso huso (Linnaeus; 1758) fingerlings, 3 diet containing 10%, 15% and 20% of Caraway with control diet that had not Caraway in its composition was utilized for feeding the Huso huso fingerlings. Fishes with initial mean weight of 10 g were fed with control diets in 7 weeks and growth parameters including total length, total weight, protein efficiency ratio, feed conversation rate and body approximate compositions were measured and analyzed. Results showed that the diet with 15% Caraway has the best effect on growth parameters of Huso huso fingerlings and lead to more gaining weight (146.60±1.85 g) than other diets. Moreover, between body approximate compositions, only the protein and moisture level were affected by diets containing Caraway. Maximum protein was observed in fingerlings fed with diets containing 10% and 20% Caraway. According to obtained results, using the diet with 15% Caraway recommend in order to enhance growth of Huso huso fingerlings.
http://isfj.ir/article-1-1480-en.pdf
Caraway (Carum carvi)
Growth indexes
Approximate composition
Huso huso