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    In:  http://aquaticcommons.org/id/eprint/24040 | 18721 | 2018-08-03 06:36:47 | 24040 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-15
    Description: The development of the commercial culture of penaeid shrimps has been accompanied by the occurrence of infectious and noninfectious diseases. The most important penaeid diseases are caused by organisms that are part of the normal microflora of penaeids. In 1998, the samples were collected from five farms in Ghofase area (Ahadan) 2-5 ponds in each farm. The shrimps of these ponds were preserved in full hygienic conditions, from each pond, at least 5 samples were collected and then transferred to the Aquatic Diseases Laboratory of Khouzestan Fisheries Research Center. The main tissues of Gill, Hemolymph, Hepatopancreas and cuticle of live-shrimps were studied in the laboratory. In this research, a total of 40 fungal species were isolated from different tissues with high abundance in Hepatopancrease (19 species) and Hemolymph (12 species). Aspergillus niger was identified as the most abundant species.
    Keywords: Aquaculture ; Health ; Mycoflora ; Indian white shrimp ; Penaeus indicus ; Ghofase area ; Abadan ; Khouzestan ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 1-10
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    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25538 | 18721 | 2018-10-05 15:45:55 | 25538 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-16
    Description: This survey carried out from 2012 to 2013 to study of suitable site selection for carp and trout fish species for responsible aquaculture possibility by data collection and literature study. During the survey ecological factors including physical and chemical factors, geological factors including topography and type of soil, biological factors including selection of species and control of invader animals, climatic factors, geographical factors and pollutant including heavy metals, agricultural pesticides Surfactants and crude oils were recognized. Also in comparing with standard levels suitable rate of each important factor in aquaculture were studied.
    Keywords: Aquaculture ; Iran ; Warm Water ; Fish ; Cold Water ; Ecological factors ; Biological factors ; Aquaculture ; Survey ; Carp ; Species
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 33
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    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25553 | 18721 | 2018-10-05 16:16:38 | 25553 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-16
    Description: Nowadays, white spot virus disease is serious threat for breeding and culture industry of shrimp. In this study was increasing resistance of shrimp against white spot virus by using modern methods such as shrimp vaccination with inactivated viruses and recombinant proteins. The aim of this study were determine the growth and survival rates vaccinated and non-vaccinated of Litopenaeus vannamei (5 to 15 and 12 to 26 day), that were challenged with white spot virus in 40 and 60 day rearing. This study consisted two separate groups were vaccinated and non-vaccinated with 11 treatments experimental and each of replicate was stocked 1000 pieces by post larva of 5 to15 and 12 to 26 day. After vaccination, two groups of post larvae exposed to the white spot virus at 40 and 60 day, one groups no exposure to the virus. Samplings were randomly of shrimp in 40, 60 and 80 days 10 pieces each of treatment experimental and measured mean of weight and length. Also, number of deaths was recorded at morning and evening daily and calculated survival rate at the end of study. The results showed growth rate of post larvae vaccinated (5 to15 day) which exposed to white spot virus at 40 and 60 was significantly lower than non-vaccinated of post larval, while the growth rate of post larval exposed to virus in 60 day was significantly increased. On the other hand, growth rate of post larval vaccination (12 to 26 day) exposed to virus in 60 day compared with post larval vaccination (5 to 15 and 12 to 26) exposed to virus in 40 and 60 days was significantly increased. Hence, growth rate was significantly increased in post larval vaccinated (5 to 15 and 12 to 26) which non-exposed to virus. Although the survival rate was post larval vaccinated (12 to 26 days) exposed to virus Post larvae in 60 day higher than post larval were exposed to virus in 40 and 60, but no significant differences were observed. However, relative mortality of post larval vaccination in 12 to 26 day compared with post larval vaccination in 5 to 15 days exposed to virus were significantly lower. Considering growth and survival index was improved of post larval vaccination can be concluded that the optimum age for vaccination against white spot virus of L.vannamei was 12 to 26 day.
    Keywords: Aquaculture ; Iran ; White spot virus ; Litopenaeus vannamei ; Vaccination ; Growth ; Survival rate
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 45
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    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25544 | 18721 | 2018-10-05 15:54:31 | 25544 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-16
    Description: White spot syndrome virus (WSSV) is the causative agent responsible for huge-shrimp viral epidemics in shrimp farms throughout the world.Our study was aimed to determine the effect of WSSV Gamma-vaccinated Litopenaeus vannamei in occurrence of apoptosis. One thousand and twenty PL15 were randomly distributed among 2 treatments and two control groups. Gama-Vaccinated shrimp and none-Gamma-vaccinated ones were our treated and untreated groups. Our result showed there is a significant difference (p〈.05) between vaccinatedexposed group (82.33±2.51) and none-vaccinated exposed group (26.00±10.00) was about 56%. It is concluded that apoptosis can be a helpful process as immune function in shrimp especially against WSSV.
    Keywords: Aquaculture ; Health ; Iran ; Vaccination ; White Spot Disease ; Shrimp ; Litopenaeus vannamei ; WSSV ; Gamma ; Immune
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 30
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    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25698 | 18721 | 2018-10-08 09:34:51 | 25698 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-16
    Description: This study is a part of the national and technology master plan entitled "Attain to technical knowledge of specific pathogen free shrimp production and cut off to dependence on foreign products". The goals of this work were to assess and analysis the risk factors of production of specific pathogen free Litopenaeus vannamei shrimp in its all stages (broodstocking, laravl production, shrimp farming, feeding and water quality), determining the pattern of outcomes monitoring, management and control of outcomes from April 2012 to September 2015 in Bandargah research station and Persian Gulf SPF Shrimp research station and their environment, belonging to Shrimp Research Center, located in Bushehr. Identification and screening of risk factors have been done based on Environment Aspect and Effect Analysis method, (EA)2, using a fine statement questionnaire and quantification of risks. The number of identified risk factors in Bandargah research station was 15 while it was 13 in Persian Gulf SPF Shrimp research station. The more number of risk factors in Bandargah station in respect to its number in Persian Gulf station is might due to lower level of biosecurity, physical structure and aging of Bandargah station and existence of two possible source of contamination, the Bushehr nuclear power plant pollutants and Bandargah fishing harbor, near to the station. On the basis of results, the maximum values of APN in Bandargah station was 42 while it was 30 in Persian Gulf station. These results revealed that the level of risk in Bandargah station is lower than that in Persian Gulf station. The most probable risks in both studied research stations are related to transmission of pathogens in shrimp feeding and water intake pollution.
    Keywords: Fisheries ; Iran ; Persian Gulf ; Bushehr ; Environmental risk assessment ; Shrimp ; Litopenaeus vannamei ; Specific pathogen free
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 80
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