Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
Effect of Echinacea purpurea extract on the immune system of rainbow trout (Oncorhynchus mykiss) and its resistance to Streptococcusis
Effect of Echinacea purpurea extract on the immune system of rainbow trout (Oncorhynchus mykiss) and its resistance to Streptococcusis
1
12
110128
10.22092/isfj.2017.110128
FA
R.
Pourgholam
M.
Sharif Rohani
R.
Safari
A.A.
Saeeidi
M.
Binaeei
R.
Najafeyan
Z.
Bankehsaz
M.J.
Taghavi
A.
Sepahdari
Journal Article
2017
06
19
In this study, some non-specific immune responses and hematological parameters in
rainbow trout juveniles (16g mean weight) and their resistance to Streptococcusis were
invetigated following dietary administration of 3 concentrations (0.5, 1, 1.5g/kg of feed) of
Echinacea purpurea extract. The non-pecific immune response and hematological parameter
compared with control group for 60 days. Evaluated parameters included were of C3, C4,
(complement components), superoxide ions (respiratory burst), lysozyme activity, number of
WBC, percentage of blood lymphocytes, monocytes and neutrophils. At the end of trial, the
relative survival rate (RSR) of fish was evaluated against S. iniae. The results showed that the
levels of C3, lysozyme activity, superoxide ions, number of WBC and percentage of
neutrophils in the experiment groups (the highest concentration, 1.5g/kg of feed) were
increased significantly compared to the control group. Whereas, no significant difference was
found in the value of C4 and the percentage of monocytes and lymphocytes in comparison to
the control group. The relative survival rates of fish following challenge with Streptococcus
iniae, were 91.11 and 44.44 percent in experiment (Echinacea purpurea, concentration of
1.5g/kg of feed) and control group, respectively.
In conclusion, the results of the present study demonstrated that Echinacea purpurea.
extract enhanced the non-specific immune system and fish resistance against streptococcusis,
suggesting that this extract might be used as immunostimulant in fish feed.
In this study, some non-specific immune responses and hematological parameters in
rainbow trout juveniles (16g mean weight) and their resistance to Streptococcusis were
invetigated following dietary administration of 3 concentrations (0.5, 1, 1.5g/kg of feed) of
Echinacea purpurea extract. The non-pecific immune response and hematological parameter
compared with control group for 60 days. Evaluated parameters included were of C3, C4,
(complement components), superoxide ions (respiratory burst), lysozyme activity, number of
WBC, percentage of blood lymphocytes, monocytes and neutrophils. At the end of trial, the
relative survival rate (RSR) of fish was evaluated against S. iniae. The results showed that the
levels of C3, lysozyme activity, superoxide ions, number of WBC and percentage of
neutrophils in the experiment groups (the highest concentration, 1.5g/kg of feed) were
increased significantly compared to the control group. Whereas, no significant difference was
found in the value of C4 and the percentage of monocytes and lymphocytes in comparison to
the control group. The relative survival rates of fish following challenge with Streptococcus
iniae, were 91.11 and 44.44 percent in experiment (Echinacea purpurea, concentration of
1.5g/kg of feed) and control group, respectively.
In conclusion, the results of the present study demonstrated that Echinacea purpurea.
extract enhanced the non-specific immune system and fish resistance against streptococcusis,
suggesting that this extract might be used as immunostimulant in fish feed.
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
13
22
110129
10.22092/isfj.2017.110129
FA
Journal Article
2017
06
19
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
Extraction and Identification steroids in two species marine algae, Sargassum oligocystum and Nizamudiinia zanardinii in Persian Gulf and Oman Sea
Extraction and Identification steroids in two species marine algae, Sargassum oligocystum and Nizamudiinia zanardinii in Persian Gulf and Oman Sea
23
30
110130
10.22092/isfj.2017.110130
FA
SH.
Jamili
A.R.
Gohari
S.
Saeidnia
P.
Permeh
J.
Firoozi
B.M.
Gharanjik
M.
Sadrian
Journal Article
2017
06
19
Sargassum oligocystum and Nizamudiinia zanardinii are the most abundant algae distributed
in the north of Persian Gulf and Oman Sea. In this study after sampling and preparation of S.
oligocystum by Chroform-Etanol (3-1) solvent and N. zanardinii by methanol has been
extract. Separation and purification of the compounds was carried out using thin layer, general
and inverse column chromatography, Cephadex and high-performance liquid chromatography
(HPLC ).. Structural elucidation of the constituents was based on the data obtained from HNMR,
13C-NMR, HSQC, HMBC, DEPT and Cephadex LH-20. The steroids compounds
separated from above algae were identified as 22-dehydrocholesterol (1) cholesterol (2)
fucosterol (3) 29-hydroperoxystigmasta-5,24(28)-dien-3β-ol (4) 24-hydroperoxy-24-
vinylcholesterol (5) a mixture of 24(S)-hydroxy-24-vinylcholesterol (6) and 24(R)-hydroxy-24-
vinylcholesterol (7) and ostreasterol (8) based on their spectral data and from comparison with
those previously reported in the literature.
Sargassum oligocystum and Nizamudiinia zanardinii are the most abundant algae distributed
in the north of Persian Gulf and Oman Sea. In this study after sampling and preparation of S.
oligocystum by Chroform-Etanol (3-1) solvent and N. zanardinii by methanol has been
extract. Separation and purification of the compounds was carried out using thin layer, general
and inverse column chromatography, Cephadex and high-performance liquid chromatography
(HPLC ).. Structural elucidation of the constituents was based on the data obtained from HNMR,
13C-NMR, HSQC, HMBC, DEPT and Cephadex LH-20. The steroids compounds
separated from above algae were identified as 22-dehydrocholesterol (1) cholesterol (2)
fucosterol (3) 29-hydroperoxystigmasta-5,24(28)-dien-3β-ol (4) 24-hydroperoxy-24-
vinylcholesterol (5) a mixture of 24(S)-hydroxy-24-vinylcholesterol (6) and 24(R)-hydroxy-24-
vinylcholesterol (7) and ostreasterol (8) based on their spectral data and from comparison with
those previously reported in the literature.
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
Evaluation of feeding indices of catfish Arius dussumieri in Oman Sea (Sistine & Baluchistan)
Evaluation of feeding indices of catfish Arius dussumieri in Oman Sea (Sistine & Baluchistan)
31
40
110131
10.22092/isfj.2017.110131
FA
M.
Cheraghi
T.
Valinassab
M.
Hafezie
Journal Article
2017
06
19
Due to study the food regime of Arius dussumieri, a total of 132 specimens were collected
from Oman sea waters, Sistine & Baluchistan province. The stomach content, were taken into
consideration and it was found that the amount of full, semi-full and empty stomachs were 31,
33 and 36 percent, respectively of which the highest frequency was in winter (74%) and the
lowest was in summer (24%). On the other hand, the fullness index was studied with the
highest and lowest value for spring (44%) and winter (5%), respectively. The GaSI shows
that A.dussumieri, has better feeding in spring and summer but feeding (up in male) was
decreased in autumn and winter. The Food Preference (FP) Index was estimated as: Fishes
(39%), Crustacean (40%) and Molluscs (20%) namely all of them are considered as minor
food in all four seasons. The most important food items were identification as fishes:
Carangidae, Engraulidae & Leiognathidae crabs: Portunidae & Porcellanidae shrimp:
Alpheidae cephalopods: Loliginidae & Opisthoteuthidae gastropods: Muricidae & Naticidae.
Due to study the food regime of Arius dussumieri, a total of 132 specimens were collected
from Oman sea waters, Sistine & Baluchistan province. The stomach content, were taken into
consideration and it was found that the amount of full, semi-full and empty stomachs were 31,
33 and 36 percent, respectively of which the highest frequency was in winter (74%) and the
lowest was in summer (24%). On the other hand, the fullness index was studied with the
highest and lowest value for spring (44%) and winter (5%), respectively. The GaSI shows
that A.dussumieri, has better feeding in spring and summer but feeding (up in male) was
decreased in autumn and winter. The Food Preference (FP) Index was estimated as: Fishes
(39%), Crustacean (40%) and Molluscs (20%) namely all of them are considered as minor
food in all four seasons. The most important food items were identification as fishes:
Carangidae, Engraulidae & Leiognathidae crabs: Portunidae & Porcellanidae shrimp:
Alpheidae cephalopods: Loliginidae & Opisthoteuthidae gastropods: Muricidae & Naticidae.
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
Chemical indicators of spoilage and shelf-life of the consolidated burgers (Kilka â Silver carp ) during cold storage at -18ë
Chemical indicators of spoilage and shelf-life of the consolidated burgers (Kilka â Silver carp ) during cold storage at -18ë
41
49
110132
10.22092/isfj.2017.110132
FA
A.A
Khanipour
S.
Fathi
Y.
Fahim Dejban
Journal Article
2017
06
19
Silver carp fish and Kilka burgers fusion product is a mixture of minced meat ,
fish , Tofu and Silver carp , flavors , fillers , various herbs and spices .This study was
designed to investigate corruption indicators and integrated manner burgers shelf- life
during cold storage and was performed at a temperature of -18 ° C.To this end , 4
treatments and Tofu burger meat mixed with various percentages of Silver carp was
chosen .Indicators of determination include TVN,TBA, was over 4 months of PV at -18
°C was investigated and the results show that the zero â phase testing of volatile
nitrogen in meat fish , Tofu , have been rather than in meat, Fish TVN,TBA and ph
silver carp h .The changes in peroxide measurements over 4 month s, increase and this
increase of 100 % in treatments 1 and Tofu fish used and the greatest increase with
3/53 ±0,057 average increase was significant at the 95 % level (p
Silver carp fish and Kilka burgers fusion product is a mixture of minced meat ,
fish , Tofu and Silver carp , flavors , fillers , various herbs and spices .This study was
designed to investigate corruption indicators and integrated manner burgers shelf- life
during cold storage and was performed at a temperature of -18 ° C.To this end , 4
treatments and Tofu burger meat mixed with various percentages of Silver carp was
chosen .Indicators of determination include TVN,TBA, was over 4 months of PV at -18
°C was investigated and the results show that the zero â phase testing of volatile
nitrogen in meat fish , Tofu , have been rather than in meat, Fish TVN,TBA and ph
silver carp h .The changes in peroxide measurements over 4 month s, increase and this
increase of 100 % in treatments 1 and Tofu fish used and the greatest increase with
3/53 ±0,057 average increase was significant at the 95 % level (p
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
Antibacterial activity of Cuminum cyminum essential oil and Nisin on Streptococcus inaie in lab and fillets of rainbow trout
Antibacterial activity of Cuminum cyminum essential oil and Nisin on Streptococcus inaie in lab and fillets of rainbow trout
50
59
110133
10.22092/isfj.2017.110133
FA
L.
Roomiani
Journal Article
2017
06
19
The antibacterial activity of different concentrations of Cuminum cyminum essential oil (0, 0.005, 0.015,
0.045, 0.135, 0.405%) and nisin (0, 0.125, 0.25, 0.75 μg/ml) was explored in lab and food model (fillets
of rainbow trout) in controling Streptococcus iniae for 15 days at 8 ºC. The micro-dilution method was
used to determine MIC and MBC for nisin and the essential oil, so used for food model. Results showed
that MIC and MBC for essential oil and nisin were 0.015, 0.005% and 0.25, 0.125 μg/ml, respectively.
For the duration of 15 days no statistical significance was recorded between the different concentrations
of nisin and essential oil and control treatment. Results showed that the bacterial growth was delayed in
different samples being treated with nisin and essential oil from 3 to 6 days for the given compounds
and 6 days for nisin and essential oil in combination. The highest synergistic effect of nisin with essential
oil was found in 0.135 and 0.405% concentrations for essential oil and 0.75 μg/ml for nisin at 8 ºC.
*Corresponding
The antibacterial activity of different concentrations of Cuminum cyminum essential oil (0, 0.005, 0.015,
0.045, 0.135, 0.405%) and nisin (0, 0.125, 0.25, 0.75 μg/ml) was explored in lab and food model (fillets
of rainbow trout) in controling Streptococcus iniae for 15 days at 8 ºC. The micro-dilution method was
used to determine MIC and MBC for nisin and the essential oil, so used for food model. Results showed
that MIC and MBC for essential oil and nisin were 0.015, 0.005% and 0.25, 0.125 μg/ml, respectively.
For the duration of 15 days no statistical significance was recorded between the different concentrations
of nisin and essential oil and control treatment. Results showed that the bacterial growth was delayed in
different samples being treated with nisin and essential oil from 3 to 6 days for the given compounds
and 6 days for nisin and essential oil in combination. The highest synergistic effect of nisin with essential
oil was found in 0.135 and 0.405% concentrations for essential oil and 0.75 μg/ml for nisin at 8 ºC.
*Corresponding
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
Logistic regression of some risk factors underlying the outbreak of streptococcusis in rainbow trout (Onchorhynchus mykiss) farms in Haraz River, Mazandaran Province, Iran
Logistic regression of some risk factors underlying the outbreak of streptococcusis in rainbow trout (Onchorhynchus mykiss) farms in Haraz River, Mazandaran Province, Iran
60
73
110134
10.22092/isfj.2017.110134
FA
A.
Sepahdari
A.
Saeedi
Sh.
Kakoulaki
F.
Habibi Kotanaee
A.R.
Babaalian
Journal Article
2017
06
19
Streptococcusis is the one of the most important bacterial fish diseases with outbreak in
rainbow trout farms in Iran. The fish farmers have been largely suffered from huge economic
losses due to the Streptococcusis outbreaks in different rainbow trout farms in Iran. The present
study assessed the effects of some environmental risk factors on incidence of streptococcusis in
rainbow trout farms in Haraz River in Mazandaran Province, Iran. A suit of environmental
factors including water temperature, nitrite, nitrate, ammonium, water turbidity, DO, water Debi
and total count of bacteria were explored as influential factors. Fish and water samples were
randomly collected from 10 farm on a monthly basis throughout a year. Isolation and
recognition of strep strains were made using biochemical and PCR tests and the data were
analyzed by logistic regression method. According to the results, 20% of the differences were
explained by the logistic model. Management of these factors might decline the rate of disease
outbreak.
Streptococcusis is the one of the most important bacterial fish diseases with outbreak in
rainbow trout farms in Iran. The fish farmers have been largely suffered from huge economic
losses due to the Streptococcusis outbreaks in different rainbow trout farms in Iran. The present
study assessed the effects of some environmental risk factors on incidence of streptococcusis in
rainbow trout farms in Haraz River in Mazandaran Province, Iran. A suit of environmental
factors including water temperature, nitrite, nitrate, ammonium, water turbidity, DO, water Debi
and total count of bacteria were explored as influential factors. Fish and water samples were
randomly collected from 10 farm on a monthly basis throughout a year. Isolation and
recognition of strep strains were made using biochemical and PCR tests and the data were
analyzed by logistic regression method. According to the results, 20% of the differences were
explained by the logistic model. Management of these factors might decline the rate of disease
outbreak.
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
Apparent lipid and fatty acid digestion, retention of lipid and growth performance in Caspian salmon (Salmo trutta caspius) fry fed dietary n-3 highly unsaturated fatty acids and vitamin E.
Apparent lipid and fatty acid digestion, retention of lipid and growth performance in Caspian salmon (Salmo trutta caspius) fry fed dietary n-3 highly unsaturated fatty acids and vitamin E.
74
90
110135
10.22092/isfj.2017.110135
FA
E.
Sotoudeh
A.
Abedian Kenari
S.
Khodabande
Journal Article
2017
06
19
A 10-week feeding experiment was conducted to investigate the effect of dietary n-3 highly
unsaturated fatty acids (n-3 HUFA) and vitamin E interaction on growth, apparent digestibility,
apparent retention and utilization of lipid in Caspian salmon fry. Six experimental diets combining
three different dietary levels of n-3 HUFAs (L: low: 1+0.5, DHA+EPA, M: medium 2+1, DHA+EPA,
H: high 4+2 DHA +EPA g/100g diet) with two different levels of vitamin E (L: low 300 and H: high
1000 mg/kg diet): LL, LH, ML, MH, HL and HH (HUFA/vitamin E) were investigated. Fry with
initial mean (±SD) body weight of 600 ± 25 (mg) were randomly distributed in tanks and fed to
apparent satiation. Increase in dietary HUFA and vitamin E markedly improved larval growth. The
results showed that the survival of Caspian salmon fry was not affected by dietary omega-3 HUFA and
vitamin E. C20:5n-3 and C22:6n-3 fatty acids content of polar and neutral lipids positively correlated
with their concentration on diets. Apparent digestibility and apparent retention of total lipid was
significantly affected by dietary HUFA. The results showed that n-3 highly unsaturated fatty acids and
vitamin E had positive effects on growth performance, lipid metabolism and apparent digestibility of
Caspian salmon fry.
A 10-week feeding experiment was conducted to investigate the effect of dietary n-3 highly
unsaturated fatty acids (n-3 HUFA) and vitamin E interaction on growth, apparent digestibility,
apparent retention and utilization of lipid in Caspian salmon fry. Six experimental diets combining
three different dietary levels of n-3 HUFAs (L: low: 1+0.5, DHA+EPA, M: medium 2+1, DHA+EPA,
H: high 4+2 DHA +EPA g/100g diet) with two different levels of vitamin E (L: low 300 and H: high
1000 mg/kg diet): LL, LH, ML, MH, HL and HH (HUFA/vitamin E) were investigated. Fry with
initial mean (±SD) body weight of 600 ± 25 (mg) were randomly distributed in tanks and fed to
apparent satiation. Increase in dietary HUFA and vitamin E markedly improved larval growth. The
results showed that the survival of Caspian salmon fry was not affected by dietary omega-3 HUFA and
vitamin E. C20:5n-3 and C22:6n-3 fatty acids content of polar and neutral lipids positively correlated
with their concentration on diets. Apparent digestibility and apparent retention of total lipid was
significantly affected by dietary HUFA. The results showed that n-3 highly unsaturated fatty acids and
vitamin E had positive effects on growth performance, lipid metabolism and apparent digestibility of
Caspian salmon fry.
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
Effect of long-term starvation and restricted feeding on growth performance and body composition of juvenile Siberian sturgeon (Acipenser baerii Brandt 1869)
Effect of long-term starvation and restricted feeding on growth performance and body composition of juvenile Siberian sturgeon (Acipenser baerii Brandt 1869)
91
102
110136
10.22092/isfj.2017.110136
FA
S.
Shirvan
B.
Falahatkar
H.
Noveirian
A.
Abasalizadeh
Journal Article
2017
06
19
The present study was designed and performed to investigate the eefect of long-term some feeding
strategies (starvation, restricted feeding at rate of 1% biomass per tank and satiate feeding as control)
on growth performance and body composition of juvenile Siberian sturgeon (Acipenser baerii Brandt
1869) for 8 weeks. In this regard, 270 juveniles Siberian sturgeon (average weight 54 ± 6/27 g and
density 1.5 g/l) were distributed in three treatments (with three replicates) in 9 fiberglass tanks (1050
l). For all fish in each tank, body weight and total length were individually recorded at a biweekly
interval. At the termination of the experiment period, five fish per replicate were caught randomly for
proximate composition. Results showed that growth performance of Siberian sturgeon was affected
significantly by starvation and restricted feeding periods. Moisture and lipid contents were differed
significantly in all treatments which the highest moisture and lipid contents were observed in starved
and control fish, respectively. Protein content in starved fish was significantly lower than other groups,
whereas ash contents were not significantly different among the treatments. In general, weight loss and
other growth factors of juveniles siberian sturgeon during the food shortage were refered to mobilizing
the body lipid reservesand then body protein sources and replacing with water. In fact, juvenile
Siberian sturgeon can conserve body protein stores better than lipids during the food shortage period
The present study was designed and performed to investigate the eefect of long-term some feeding
strategies (starvation, restricted feeding at rate of 1% biomass per tank and satiate feeding as control)
on growth performance and body composition of juvenile Siberian sturgeon (Acipenser baerii Brandt
1869) for 8 weeks. In this regard, 270 juveniles Siberian sturgeon (average weight 54 ± 6/27 g and
density 1.5 g/l) were distributed in three treatments (with three replicates) in 9 fiberglass tanks (1050
l). For all fish in each tank, body weight and total length were individually recorded at a biweekly
interval. At the termination of the experiment period, five fish per replicate were caught randomly for
proximate composition. Results showed that growth performance of Siberian sturgeon was affected
significantly by starvation and restricted feeding periods. Moisture and lipid contents were differed
significantly in all treatments which the highest moisture and lipid contents were observed in starved
and control fish, respectively. Protein content in starved fish was significantly lower than other groups,
whereas ash contents were not significantly different among the treatments. In general, weight loss and
other growth factors of juveniles siberian sturgeon during the food shortage were refered to mobilizing
the body lipid reservesand then body protein sources and replacing with water. In fact, juvenile
Siberian sturgeon can conserve body protein stores better than lipids during the food shortage period
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
A Need Assessment of fish (cammon carp)culture Agent members in Guilan&mazandaran Province
A Need Assessment of fish (cammon carp)culture Agent members in Guilan&mazandaran Province
103
116
110137
10.22092/isfj.2017.110137
FA
H.
Alipour.
M.
Touraji.
Journal Article
2017
06
19
The main objective of this study is an investigation of educational needs of fish is cammon carp
Proudation cooperatives and effective factors on mentioned educational needs .This research was
applicable from objective point of view and descriptive-correlation method considering its
method, which has been done with survey approach. The statistical population is the members of
the fish is cammon carp Proudation cooperatives in Guilan&mazandaran Province which were
included 2235 persons. Among this population, 160 persons were selected using Cochran formula
and proportional stratified random sampling method. . Managers production Which were 19
production cooperatives in the province, was census through the survey method Meanwhile, the
total number of 38 experienced experts in fishculture of Guilan & mazandaran provinces
Fisheries Researeach organization .The main tool for data collection was questionnaire and its
reliability was calculated by Cronbachâs alpha coefficient, The main tool for data collection
survey questionnaire and its reliability by a panel of experts confirmed were valid questionnaire
study using the alpha coefficient to mean parts inventory intensive manufactures 73% and
surveys of experts and managers of cooperatives by Cronbachâs alpha coefficient of 78% was
calculated
More than 70 percent of the average of the current knowledge of warm water fish production in
Guilan and Mazandaran is moderate to high. Educational needs of producers fish in warm- water
showed a significant relationship between income level and their knowledge. Results showed that
the management of health and diseases in warm-water fish farms, fish farms, water management,
and site selection and construction of warm water from the producers' point of view, experts and
managers of cooperatives is the educational priority.
The main objective of this study is an investigation of educational needs of fish is cammon carp
Proudation cooperatives and effective factors on mentioned educational needs .This research was
applicable from objective point of view and descriptive-correlation method considering its
method, which has been done with survey approach. The statistical population is the members of
the fish is cammon carp Proudation cooperatives in Guilan&mazandaran Province which were
included 2235 persons. Among this population, 160 persons were selected using Cochran formula
and proportional stratified random sampling method. . Managers production Which were 19
production cooperatives in the province, was census through the survey method Meanwhile, the
total number of 38 experienced experts in fishculture of Guilan & mazandaran provinces
Fisheries Researeach organization .The main tool for data collection was questionnaire and its
reliability was calculated by Cronbachâs alpha coefficient, The main tool for data collection
survey questionnaire and its reliability by a panel of experts confirmed were valid questionnaire
study using the alpha coefficient to mean parts inventory intensive manufactures 73% and
surveys of experts and managers of cooperatives by Cronbachâs alpha coefficient of 78% was
calculated
More than 70 percent of the average of the current knowledge of warm water fish production in
Guilan and Mazandaran is moderate to high. Educational needs of producers fish in warm- water
showed a significant relationship between income level and their knowledge. Results showed that
the management of health and diseases in warm-water fish farms, fish farms, water management,
and site selection and construction of warm water from the producers' point of view, experts and
managers of cooperatives is the educational priority.
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
Anthropogenic factors and spatio-temporal conditions affecting occupational accidents in fishery sector, Iran (2007-2011)
Anthropogenic factors and spatio-temporal conditions affecting occupational accidents in fishery sector, Iran (2007-2011)
117
125
110138
10.22092/isfj.2017.110138
FA
Journal Article
2017
06
19
The high occupational accident rate in fishery sector is a worldwide issue. The aim of present
study was to investigate the characteristics of occupational accident in fishery sector of Iran
during 2007- 2011.
In the present study, a total of 1076 fishery occupational accidents being recorded during 2007-
2011 by the Ministry of Labor and Social Affair were invetigated. A Chi-square test was used to
investigate the association between factors influencing accidents.
The most victims aged less than 35 years old (45.47%), with elementary and secondary
educations (64.58%), married (75.84%) and based in south of Iran (46.1%). The most accidents
occurred on summer (27.23%), during 8-12 hours of day (32.78%) and among workers with less
than 1 year experience (44.89%). Significant associations were found between accident time
(season), educational levels of victims, age of victims, geographical location and victimâs
experience with accident occurrence.
The accident control programs, especially related occupational accidents, identifying groups at
risk and factors' affecting the accidents were the crucial issues to be identified. There are some
possible management actions that most likely would reduce occupational accident rate in fishery
sector including: raising safety awareness, encouraging workers to participate in safety programs,
encouraging workers to use protective equipment during fishery.
*Corresponding
The high occupational accident rate in fishery sector is a worldwide issue. The aim of present
study was to investigate the characteristics of occupational accident in fishery sector of Iran
during 2007- 2011.
In the present study, a total of 1076 fishery occupational accidents being recorded during 2007-
2011 by the Ministry of Labor and Social Affair were invetigated. A Chi-square test was used to
investigate the association between factors influencing accidents.
The most victims aged less than 35 years old (45.47%), with elementary and secondary
educations (64.58%), married (75.84%) and based in south of Iran (46.1%). The most accidents
occurred on summer (27.23%), during 8-12 hours of day (32.78%) and among workers with less
than 1 year experience (44.89%). Significant associations were found between accident time
(season), educational levels of victims, age of victims, geographical location and victimâs
experience with accident occurrence.
The accident control programs, especially related occupational accidents, identifying groups at
risk and factors' affecting the accidents were the crucial issues to be identified. There are some
possible management actions that most likely would reduce occupational accident rate in fishery
sector including: raising safety awareness, encouraging workers to participate in safety programs,
encouraging workers to use protective equipment during fishery.
*Corresponding
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
Biological Monitoring of heavy metals (Pb, Cd, Fe, Zn, Ni, Cu) by tissues of Capoeta damascina from Sezar river, Lorestan province
Biological Monitoring of heavy metals (Pb, Cd, Fe, Zn, Ni, Cu) by tissues of Capoeta damascina from Sezar river, Lorestan province
126
131
110139
10.22092/isfj.2017.110139
FA
A.
Farhadi
V.
Yavari
Journal Article
2017
06
19
This study was carried out in order to measure and compare heavy metals levels (Pb,Cd,Fe, Zn, Ni and
Cu) in gill and muscle of Capoeta damascina. 60 fish were caught from 3 stations in Tangeh haft zone
from Sezar river. Heavy metals were measured by Atomic Absorption spectrophotometery. The
highest concentrations of heavy metals Fe>Zn>Pb>Ni>Cu>Cd, respectively. The average heavy
metals concentration in gill and muscle have significant different (P0.05). The results of this study showed that there were
significant difference between heavy metals concentrations in gill, liver and muscle (P
This study was carried out in order to measure and compare heavy metals levels (Pb,Cd,Fe, Zn, Ni and
Cu) in gill and muscle of Capoeta damascina. 60 fish were caught from 3 stations in Tangeh haft zone
from Sezar river. Heavy metals were measured by Atomic Absorption spectrophotometery. The
highest concentrations of heavy metals Fe>Zn>Pb>Ni>Cu>Cd, respectively. The average heavy
metals concentration in gill and muscle have significant different (P0.05). The results of this study showed that there were
significant difference between heavy metals concentrations in gill, liver and muscle (P
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
The effects of slow and quick freezing methods on microstructure, drip loss, proximate compositions and sensory properties of Nil Tilapia (nilticus Oreochromis) fillets
The effects of slow and quick freezing methods on microstructure, drip loss, proximate compositions and sensory properties of Nil Tilapia (nilticus Oreochromis) fillets
132
146
110140
10.22092/isfj.2017.110140
FA
B.
Karami
A.A.
Motalebi
S.E.
Hossini
M.
Soltani
Journal Article
2017
06
19
The aim of this study was to investigate the effects of slow and quick freezing on the changes in sensory properties, drip loss, microstructure and proximate compositions of Nile Tilapia (Oreochromis niloticus) fillets. For this reason, skined off and deboned tilapia fillets were frozen by slow and quick freezing methods. The samples were packed and stored at -18 °C for six months. Proximate composition, drip loss, and sensory evaluation of the samples were determined on a montly basis. Microstructure of the samples was studied using Scanning Electron Microscopy (SEM) every second month. Results indicated that fresh tilapia fillets had 1/30, 18/70, 1/85, 79/12 percentage of fat, protein, ash and moisture contents, respectively. The amounts of proximate compositions were changed during the storageperiod. Quick frozen samples had significantly lower changes than slow frozen samples. The percentage of the drip in the slow frozen samples was significantly higher than quick frozen samples. SEM micrographs were also showed that the changes in the microstructure of the samples were different in the slow and frozen samples. Slow freezing method resulted in the higher damage in the microstructure of the samples than quick freezing method. Sensory evaluation of the samples indicated a better acceptability for the quick frozen samples than that for slow frozen sample.
The aim of this study was to investigate the effects of slow and quick freezing on the changes in sensory properties, drip loss, microstructure and proximate compositions of Nile Tilapia (Oreochromis niloticus) fillets. For this reason, skined off and deboned tilapia fillets were frozen by slow and quick freezing methods. The samples were packed and stored at -18 °C for six months. Proximate composition, drip loss, and sensory evaluation of the samples were determined on a montly basis. Microstructure of the samples was studied using Scanning Electron Microscopy (SEM) every second month. Results indicated that fresh tilapia fillets had 1/30, 18/70, 1/85, 79/12 percentage of fat, protein, ash and moisture contents, respectively. The amounts of proximate compositions were changed during the storageperiod. Quick frozen samples had significantly lower changes than slow frozen samples. The percentage of the drip in the slow frozen samples was significantly higher than quick frozen samples. SEM micrographs were also showed that the changes in the microstructure of the samples were different in the slow and frozen samples. Slow freezing method resulted in the higher damage in the microstructure of the samples than quick freezing method. Sensory evaluation of the samples indicated a better acceptability for the quick frozen samples than that for slow frozen sample.
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
Evaluation of nitrogenous compounds, microbial changes and electrophoresis pattern during fermentation of Mahyaveh, the Iranian traditional fish sauce
Evaluation of nitrogenous compounds, microbial changes and electrophoresis pattern during fermentation of Mahyaveh, the Iranian traditional fish sauce
147
163
110141
10.22092/isfj.2017.110141
FA
S.F.
Moayedi
M.
Moosavi-Nasab
Journal Article
2017
06
19
Mahyaveh, the Iranian traditional fish sauce is a product with distinct flavor that is produced by
fermentation of small and underutilized fish species in the presence of high salt concentration. Fish
sauce is mainly used as food flavoring and seasoning in the southern provinces of Iran such as
Hormozgan and Fars. In this research, the process of Mahyaveh preparation from the Persian Gulf
anchovies was performed in the lab. Fish sauce was prepared by incubating mixtures of anchovies and
saturate brine in the pottery containers at 37 ? C during 54 days of fermentation. The total changes in
bacterial count and nitrogenous compounds were investigated in all of six stages of fermentation. The
results showed that the total nitrogenous compounds including formaldehyde nitrogen, amino acid
and volatile nitrogen increased sharply during the periods of fermentation but trimethylamine contents
dramatically reduced in the final stage after increasing moderately in the early stages of fermentation.
High Pearson correlation (r=0.8) between total bacterial count and trimethylamine confirmed the
existence of relationship between these variables in the process of fish sauce fermentation. The results
of SDS-PAGE pattern showed that the number and intensity of protein bands were reduced during
fermentation time.
Mahyaveh, the Iranian traditional fish sauce is a product with distinct flavor that is produced by
fermentation of small and underutilized fish species in the presence of high salt concentration. Fish
sauce is mainly used as food flavoring and seasoning in the southern provinces of Iran such as
Hormozgan and Fars. In this research, the process of Mahyaveh preparation from the Persian Gulf
anchovies was performed in the lab. Fish sauce was prepared by incubating mixtures of anchovies and
saturate brine in the pottery containers at 37 ? C during 54 days of fermentation. The total changes in
bacterial count and nitrogenous compounds were investigated in all of six stages of fermentation. The
results showed that the total nitrogenous compounds including formaldehyde nitrogen, amino acid
and volatile nitrogen increased sharply during the periods of fermentation but trimethylamine contents
dramatically reduced in the final stage after increasing moderately in the early stages of fermentation.
High Pearson correlation (r=0.8) between total bacterial count and trimethylamine confirmed the
existence of relationship between these variables in the process of fish sauce fermentation. The results
of SDS-PAGE pattern showed that the number and intensity of protein bands were reduced during
fermentation time.
Agricultural Research,Education and Extension Organization
Iranian Scientific Fisheries Journal
1026-1354
22
3
2013
05
22
The first report of shrimp Mcrobrachium nipponense Alagol, Almagol and Ajigol Lagoons golesta Province
The first report of shrimp Mcrobrachium nipponense Alagol, Almagol and Ajigol Lagoons golesta Province
164
170
110142
10.22092/isfj.2017.110142
FA
Gh..
Bandani
H.A.
Khoshbavar Rostami
F.
Keymaram
O.
Sadighi
D.
Mirshekar
Journal Article
2017
06
19
For the first time, Oriental river prawn Mcrobrachium nipponense were investigated in three
international lagoons the (Aalgol, Ajigol and Almagol) in ٢٠٩-٢١٠sampling take place monthly
using collapsible traps (Funnel Trap). In this study the max ٢٣١٠male and ١٧٧٩ female specimens
and min ٥٩٩ male and ٦٦٧ female specimens were caught, and, ٦٦٧ in the Alagol and Ajigol
respectively. In the three lagoons, females were smaller than males. Comparing the average mean
length males and females showed significant difference among the Ajigol with the other lagoons and
the Alagol with the other lagoons respectively.
For the first time, Oriental river prawn Mcrobrachium nipponense were investigated in three
international lagoons the (Aalgol, Ajigol and Almagol) in ٢٠٩-٢١٠sampling take place monthly
using collapsible traps (Funnel Trap). In this study the max ٢٣١٠male and ١٧٧٩ female specimens
and min ٥٩٩ male and ٦٦٧ female specimens were caught, and, ٦٦٧ in the Alagol and Ajigol
respectively. In the three lagoons, females were smaller than males. Comparing the average mean
length males and females showed significant difference among the Ajigol with the other lagoons and
the Alagol with the other lagoons respectively.