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  • Fish  (4)
  • Tissues  (3)
  • 1
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    Gonads tissue changes of Chalcalburnus mossulensis (Heckel, 1843) infected by Ligula intestinalis (cestoda) (2018)
    Details
    Publication Date: 2021-05-19
    Description: Chalcalburnus mossulensis from the cyprinidae family is one of the indigenous fish in Gheshlagh Lake of Kordestan, Iran. Ligula intestinalis is one of the infective parasites among various species of fish and causes gonads atrophy. In this study, after detection of species and age of samples, the effects of this parasite on gonads tissues and sexual maturation of Chalcalburnus mossulensis were investigated. By seasonal sampling 144 samples were collected. After investigatiing gonad tissue samples, it was clear that, there is a significant difference between the means of male and female gonads maturation rate in infected and non infected samples (p〈 0.05). Infection by Ligula intestinalis can be the reason for lack of gonads maturation. In addition, the abnormal degenerative changes like, absorption follicle, hemorrhage and infiltration of inflammation cells in ovary tissues of infected fish were seen. In testicle tissue, dispersed hemorrhage, atrophy and MMC (melano-macrophage center) were seen as pathological signs. So the spread of this parasite in different water sources is important as the point the maintenance of native species and cultivated fish.
    Description: Published
    Keywords: Chalcalburnus mossulensis ; Ligula intestinalis ; Gonads ; Histopathology ; Gonads ; Tissues
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.85-94
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  • 2
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    Detection and identification of white spot syndrome virus (WSSV) and infectious hypodermal and hematopoietic necrosis virus (IHHNV) of Litopenaus vannamei from Bushehr and Sistan and Baloochestan provinces (Iran), during 2009-2010 (2018)
    Details
    Publication Date: 2021-05-19
    Description: The first time the white spot disease (WSD) and IHHNV were reported in Iran was in 2004 and 2008, respectively in Bushehr Province. In Sistan and Balochestan province only the WSD was reported in 2008.The aim of this study was detecting these two viral diseases in these provinces, during December 2009 to April 2010. A total of 364 samples were collected according to suspected gross signs from hatcheries and shrimp farms in Bushehr and Sistan and Blochestan provinces (I.R. Iran) respectively, including larvae (72, 43 samples), post larvae (48, 37 samples), juveniles (57, 32 samples), sub adults (39, 22 samples) and broodstock (29, 13 samples) of Litopenaus vannamei . WSD was detected from juveniles (23 samples), sub adults (14 samples), and broodstock (14 samples), and IHHNV was also detected from juveniles (16 samples), sub adults (9 samples) and broodstock (5 samples) based on gross signs, PCR and histopathological changes from Bushehr province but from Sistan and Blochestan province only WSD was detected from juveniles (26 samples), sub adults (18 samples) and broodstock (7 samples). Histopathological observations of WSSV showed basophilic Cowdry type A inclusion bodies in all tissues such as gills, haematopoietic tissue, cuticle epithelium, lymphoid organ and connective tissue. However histologically, the hepatopancreas tissue showed vacuolization of B cells , without inclusion bodies, but histopatholgical changes caused IHHNV including eosinophilic Cowdry type A inclusion bodies which were ectodermal, mesodermal and rarely endodermal.
    Description: Published
    Keywords: Broodstock ; Litopenaus vannamei ; WSSV ; IHHNV ; L.vannamei ; Juvenile ; Adults ; Histopathological ; Haematopoietic ; Tissues ; Larvae
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.708-726
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  • 3
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    Study of measuring Tilapia (Oreochromis niloticus) freshness using quality index method (QIM) (2017)
    Details
    Publication Date: 2021-05-19
    Description: Fish freshness by using QIM and according to scoring to all of parts variable (positive and negative) was by sensory method and finally become the parameters of quantitative and qualitative with statistical analysis is based, tables used in volatility score of 0 to 23, with a score of 0 to 3 respectively, for their excellent quality, 3 to 7good, from 7 to 10 and from 10 to above average evaluation is unacceptable. In this study to measure the freshness of fish species Nile Tilapia (Oreochromis niloticus), black and red in 4 treatments, whole fish and empty stomach is considered and the objective of this study was to calculate the survival rate of fish in ice cover practically immediately after harvest to measure qualitative factors (sensory evaluation, chemical and microbiological).For this study 50 pieces of red and 50 pieces black Tilapia after weighed, washed and then selection 25 pieces for each treatment in unlit, ratio of 3 to 1 (ice - fish) was covered .The mean (± SD) change in temperature the fish flesh during study were between 0.2 ±0.07 a to 0.3 ±0.1a degrees Celsius, that need to raise the quality temperature is maintained at 0 degrees Celsius in unlit center. Fish covered with ice keep at ambient temperature, and after measuring the change free nitrogen, pH and microbial tests, the results showed maximum shelf life of whole fish in ice cover 9 and for empty stomach fish was7 days .And also statistical analysis (Duncan test) of data between treatments (Whole and empty fish covered in ice ) was significant (P〈0.05) .
    Description: Published
    Keywords: Tilapia ; Oreochromis niloticus ; Freshness ; Sensory evaluation ; Fish ; Methodology ; Chemical ; Quality
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.69-80
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  • 4
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    The study on possibility of fish soup powder production from different fish species in Sistanblochestan Province, Chabahar (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Fish soup powder is produced from three kinds of fish in Chabahar catched in Oman sea white flesh of many low value fish like threadfin bream, perches etc. can be used to prepare instant fish soup powder. This product has a high consumer acceptability in many countries in this research project we used 4 low value fishes with local name of Sarm, Chaman, Aroos and Talal belonging to families Carangidea, Lethrinidea , Drepanidae and Scombroidea. soup powder packed in laminated pouches and the shelf life of it is one year in ambient temperatures. The quality used to be good up to 6 month but after this time the quality decreases gradually. The experiment on fish soup showed that the percentage of protein was 32 percent, fat 11 percent and humidity 12 percent and ash 4 percent. The experiment conducted on fish soup powder was peroxide, total microbial count, organoleptic test for 6 month.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Fish Soup Powder ; Species ; Fish ; Threadfin bream ; Carangidea ; Lethrinidea ; Drepanidae ; Scombroidea ; Temperature ; Protein ; Microbial count
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 52pp.
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  • 5
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    The study on possibility of fish soup powder production from different fish species in Sistan O blochestan Province, Chabahar (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25361 | 18721 | 2018-09-14 07:10:40 | 25361 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Fish soup powder is produced from three kinds of fish in Chabahar catched in Oman sea white flesh of many low value fish like threadfin bream, perches etc. can be used to prepare instant fish soup powder. This product has a high consumer acceptability in many countries in this research project we used 4 low value fishes with local name of Sarm, Chaman, Aroos and Talal belonging to families Carangidea, Lethrinidea, Drepanidae and Scombroidea. soup powder packed in laminated pouches and the shelf life of it is one year in ambient temperatures. The quality used to be good up to 6 month but after this time the quality decreases gradually. The experiment on fish soup showed that the percentage of protein was 32 percent, fat 11 percent and humidity 12 percent and ash 4 percent. The experiment conducted on fish soup powder was peroxide, total microbial count, organoleptic test for 6 month.
    Keywords: Fisheries ; Iran ; Oman sea ; Sistanblochestan province ; Chabahar ; Fish Soup Powder ; Species ; Fish ; Threadfin bream ; Carangidea ; Lethrinidea ; Drepanidae ; Scombroidea ; Temperature ; Protein ; Microbial count
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 52
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  • 6
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    Study of measuring Tilapia (Oreochromis niloticus) freshness using quality index method (QIM) (2021)
    In:  http://aquaticcommons.org/id/eprint/22016 | 18721 | 2018-01-22 11:22:33 | 22016 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-06
    Description: Fish freshness by using QIM and according to scoring to all of parts variable (positive and negative) was by sensory method and finally become the parameters of quantitative and qualitative with statistical analysis is based, tables used in volatility score of 0 to 23, with a score of 0 to 3 respectively, for their excellent quality, 3 to 7good, from 7 to 10 and from 10 to above average evaluation is unacceptable. In this study to measure the freshness of fish species Nile Tilapia (Oreochromis niloticus), black and red in 4 treatments, whole fish and empty stomach is considered and the objective of this study was to calculate the survival rate of fish in ice cover practically immediately after harvest to measure qualitative factors (sensory evaluation, chemical and microbiological).For this study 50 pieces of red and 50 pieces black Tilapia after weighed, washed and then selection 25 pieces for each treatment in unlit, ratio of 3 to 1 (ice - fish) was covered .The mean (± SD) change in temperature the fish flesh during study were between 0.2 ±0.07 a to 0.3 ±0.1a degrees Celsius, that need to raise the quality temperature is maintained at 0 degrees Celsius in unlit center. Fish covered with ice keep at ambient temperature, and after measuring the change free nitrogen, pH and microbial tests, the results showed maximum shelf life of whole fish in ice cover 9 and for empty stomach fish was7 days .And also statistical analysis (Duncan test) of data between treatments (Whole and empty fish covered in ice ) was significant (P〈0.05).
    Keywords: Chemistry ; Fisheries ; Tilapia fish ; Freshness ; Sensory evaluation ; Chemical changes ; Oreochromis niloticus ; quality index ; method ; QIM ; Fish ; Nile Tilapia ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 69-80
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  • 7
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    Histopathological effects of water soluble–fraction of crude oil on liver tissue of fingerling beluga , Huso huso Linnaeus, 1754 (2017)
    Details
    Publication Date: 2021-05-19
    Description: In this study the LC50 96h values of water-soluble fractions (WSF) of the Caspian Sea – exploited crude oil were determined in beluga, Huso huso fingerlings. The fingerlings averaged 2.42 ± 0.11 g in weight were exposed to WSF crude oil at concentrations 24.75, 27, 29.25, 31.5, 33.75, 36, 38.25 ppm. The treatments were performed in three replicates and all changes in the specimens were determined for each concentration. Water quality parameters of the seawater were tested and recorded. The LC50 96h value was found to be 34.87 ppm. In the other step, the fingerling beluga was exposed to three sub-lethal concentrations (13.93, 20.92, 27.90 ppm) of WSF of the Caspian crude oil representing 40, 60 and 80% of LC50 96h respectively, and control without crude oil. All treatments and control were conducted in triplicate. Three specimens of each treatment were sampled for histological studies every day. Results revealed that the fish liver tissue of all the treatments showed histological changes, in comparison to the control after 2 days. Even if the changes in the treatment exposed to 27.90 ppm (80% LC50 96h) WSF occurred in 24h after exposure. Histopathological findings in liver included cloudy swelling, pyknotic nuclei, Karyorrhectic nuclei, fatty vacuolation, fatty degeneration, hypertrophy of hepatocyte, necrosis, hypertrophy of bile ducts, cholestasis and bile stagnation, inflammation, fibrosis and cirrosis. These alterations were more conspicuous with increasing the soluble fraction of crude oil concentrations and exposing time. The results are of importance since much attention has been paid to the oil slicks, particulate or sedimentary pollutions, instead of potential toxic effects of water-soluble fractions of oil, which are more available to marine biota.
    Description: Published
    Keywords: Fingerling ; Histology ; WSF of crude oil ; Huso huso ; Beluga ; Histopathological ; Water ; Crude oil ; Liver ; Tissues ; Histology
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.63-72
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