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  • 1
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    Using Artemia urmiana nauplii enriched with HUFA oils in Persian sturgeon (Acipenser persicus) larvae culture (2018)
    Details
    Publication Date: 2021-05-19
    Description: We assessed the effects of Artemia urmiana nauplii as fish food enriched with different oils on growth and survival rate of Persian sturgeon (Acipenser persicus) larvae. Sturgeon ovary oil, cod liver oil, linseed oil and a commercial emulsion (ICES, Belgium Brand) in three levels (100, 200 and 300ppm) for two periods of 12 and 24h were used for enrichment of A. urmiana nauplii fed to Persian sturgeon larvae during 20 days. Length, weight, SGR, CF, FCR and biochemical analyses including fatty acid profiles, total lipid and protein were measured for sturgeon larvae. Maximum length (43.9±2.3mm), DW (34.9±8.7mg), and minimum FCR (1.15±0.21) for sturgeon treatment 12h-200ppm, maximum SGR (13.4±0.6) for sturgeon treatment 12h-300ppm, CF (0.47±0.03) for linseed treatment 12h-300pprn and ICES 12h-300ppm (0.47±0.05), survival (94.1±0.2%) for ICES 24h-200pprn, protein content (70.05%) for ICES 12h-200ppm, lipid (21.14%) for sturgeon ovary oil treatment 24h- 300ppm, Arachidonic acid (ARA) ( 1.54±0.22mg.g OW) for cod liver oil treatment 24h- 300ppm, EPA (3.53±0.36mg.g OW) for cod liver oil 24h-100ppm, and OHA (3.22 ±0.09mg.g OW) for ICES and linseed treatments 24h-200ppm were obtained. DHA/EPA ratio in sturgeon larvae before active feeding was 1.75 which showed no significant difference compared to ICES in two levels (24h-100 and 200ppm) and linseed in two levels (24h-100 and 200ppm). ANOVA of different treatments showed significant differences between length, CF, survival rate, total lipid, ARA, EPA, and DHA contents of the sturgeon larvae among treatments (P〈0.05).
    Description: Published
    Keywords: Enrichment ; Oily seed ; HUFA oils ; Acipenser persicus ; Larvae culture ; Artemia ; Feeding
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.29-40
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  • 2
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    A survey of salinity tolerance of Persian sturgeon larvae (Acipencer persicus) fed with enriched live food containing HUFA and vitamin C (2017)
    Details
    Publication Date: 2021-05-19
    Description: Salinity tolerance in Persian sturgeon larvae (Acipenser persicus) fed with enriched Artemia urmiana nauplii were investigated when exposed to different salinity. For this purpose, cyst of Artemia urmiana hatched and enriched with a commercial emulsion, ICES30/4 supplemented with three levels of vitamin C (10, 20 and 30%) each with 3 replications according to standard condition and fed to Persian sturgeon larvae during 20 experimental days. At the end of this period, total length, weight, lipid, unsaturated fatty acids contents and vitamin C in fish larvae were measured. Fish larvae were exposed to 6, 12 and 18ppt salinity, and salinity tolerance were surveyed after 120h. The results showed that survival percentage as salinity tolerance indicator increased compared to control group that are larvae fed un-enriched Artemia nauplii. ICES40/3 with 20% vitamin C led to the highest salinity tolerance at 12ppt in Persian sturgeon larvae (99±1) but in 18ppt all larvae were died. The increase in salinity tolerance is likely due to omega 3 and 6 increase in fish larvae fed with Artemia enriched with ICES30/4.
    Description: Published
    Keywords: Acipencer persicus ; HUFA ; Nutrition ; Stress ; Sturgeon fish ; Survey ; Larvae ; Persian sturgeon ; Food ; Vitamin C
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.45-54
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  • 3
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    A survey of salinity tolerance of Persian sturgeon larvae (Acipencer persicus) fed with enriched live food containing HUFA and vitamin C (2021)
    In:  http://aquaticcommons.org/id/eprint/21908 | 18721 | 2018-01-15 10:28:52 | 21908 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-04
    Description: Salinity tolerance in Persian sturgeon larvae (Acipenser persicus) fed with enriched Artemia urmiana nauplii were investigated when exposed to different salinity. For this purpose, cyst of Artemia urmiana hatched and enriched with a commercial emulsion, ICES30/4 supplemented with three levels of vitamin C (10, 20 and 30%) each with 3 replications according to standard condition and fed to Persian sturgeon larvae during 20 experimental days. At the end of this period, total length, weight, lipid, unsaturated fatty acids contents and vitamin C in fish larvae were measured. Fish larvae were exposed to 6, 12 and 18ppt salinity, and salinity tolerance were surveyed after 120h. The results showed that survival percentage as salinity tolerance indicator increased compared to control group that are larvae fed un-enriched Artemia nauplii. ICES40/3 with 20% vitamin C led to the highest salinity tolerance at 12ppt in Persian sturgeon larvae (99±1) but in 18ppt all larvae were died. The increase in salinity tolerance is likely due to omega 3 and 6 increase in fish larvae fed with Artemia enriched with ICES30/4.
    Keywords: Aquaculture ; Biology ; Nutrition ; Stress ; Sturgeon fish ; larvae ; vitamin C ; HUFA ; Iran ; Acipenser persicus
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 45-54
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  • 4
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    Study on physico-chemical characteristics of Azad dam reservoir (Sanandaj) in order to fisheries activities (2021)
    In:  http://aquaticcommons.org/id/eprint/22180 | 18721 | 2018-03-12 03:54:48 | 22180 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-06-29
    Description: Dam reservoirs have important rules in aquaculture and fish farming in many countries. In this regard, water samples of Azad Dam reservoir (Sanandaj) were collected at five stations from July 2015 to June 2016. Then, the results of 18 physico-chemical parameters were compared with the aquaculture standards and thresholds. Results showed that thermocline and oxycline was started from June and they vanished in December. Maximum level of thermal and oxygen stratified were registered during August and June, respectively. Mean of the most physico-chemical parameters were significantly different between surface and bottom layers (T-Test, p〈0.05). Mean of temperature, dissolved oxygen, total alkalinity, total hardness, pH, total suspended solid, total dissolved solid and nutrients were in range of standard threshold of different countries. As a result, based on physico-chemical parameters and with proper management decision, the dam reservoir could be considering suitable for standard pattern of aquaculture activities.
    Keywords: Aquaculture ; Biology ; Fisheries ; Physico-chemical characteristics ; Aquaculture ; Azad dam reservoir ; Sanandaj ; Kurdistan ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 143-158
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  • 5
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    Effects of enriched Artemia urmiana with HUFA on growth, survival, and fatty acids composition of the Persian sturgeon larvae (Acipenser persicus) (2021)
    In:  http://aquaticcommons.org/id/eprint/22355 | 18721 | 2018-03-27 17:49:48 | 22355 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-03
    Description: Recently, the nutritional requirements of marine finfish larvae have received considerable attention, and studies have shown that docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) and arachidonic acid (ARA) affects the growth and survival of marine finfish larvae. This study investigated the effects of different Artemia enrichments containing variable amounts of DHA and EPA on the growth and survival of larval Persian sturgeon (Acipenser persicus). Four different Artemia enrichments ICES30/4 (with 20.90mg/g DW DHA and 6.29mg/g DW EPA), Sturgeon Ovary Oil (SOO) (with 2.76mg/g DW DHA and 7.55mg/g DW EPA), Cod Liver Oil (CLO) (with 7.64mg/g DW DHA and 11.39mg/g DW EPA) and Linseed Oil (LO) (with 0.00mg/g DW DHA and 0.03mg/g DW EPA) in seventy five aquaria (each 45 liter, with three replicates per treatment) were used. The resultant Artemia contained a different concentration of DHA (0.00-5.99mg/g DW) and EPA (0.69-4.97mg/g DW). Larvae were fed with Artemia from 3 to 20 days after active feeding at 250 prey 1^-1. Results showed that there were significant differences between treatments regarding to the total length and wet weight but no significant differences were found in dry weight between the larvae reared on different treatments. However, larvae reared on LO were significantly higher (in weight) than larvae reared on ICES30/4 and SOO. Larval survival on the SOO enriched Artemia (93.3±1.6) at 20th day was significantly higher than other treatments. Our results showed a positive effect of Artemia DHA proportions on growth and survival of the Persian sturgeon, and demonstrated that larvae of this species require a high ratio of dietary DHA to EPA.
    Description: Article includes abstract in Farsi on last page.
    Keywords: Aquaculture ; Biology ; Fisheries ; Persian sturgeon larvae ; Fatty acid composition ; Enrichments ; Artemia urmiana ; growth ; survival ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 61-72
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  • 6
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    Using Artemia urmiana nauplii enriched with HUFA oils in Persian sturgeon (Acipenser persicus) larvae culture (2021)
    In:  http://aquaticcommons.org/id/eprint/23868 | 18721 | 2018-08-01 05:25:35 | 23868 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-15
    Description: We assessed the effects of Artemia urmiana nauplii as fish food enriched with different oils on growth and survival rate of Persian sturgeon (Acipenser persicus) larvae. Sturgeon ovary oil, cod liver oil, linseed oil and a commercial emulsion (ICES, Belgium Brand) in three levels (100, 200 and 300ppm) for two periods of 12 and 24h were used for enrichment of A. urmiana nauplii fed to Persian sturgeon larvae during 20 days. Length, weight, SGR, CF, FCR and biochemical analyses including fatty acid profiles, total lipid and protein were measured for sturgeon larvae. Maximum length (43.9±2.3mm), DW (34.9±8.7mg), and minimum FCR (1.15±0.21) for sturgeon treatment 12h-200ppm, maximum SGR (13.4±0.6) for sturgeon treatment 12h-300ppm, CF (0.47±0.03) for linseed treatment 12h-300pprn and ICES 12h-300ppm (0.47±0.05), survival (94.1±0.2%) for ICES 24h-200pprn, protein content (70.05%) for ICES 12h-200ppm, lipid (21.14%) for sturgeon ovary oil treatment 24h- 300ppm, Arachidonic acid (ARA) ( 1.54±0.22mg.g OW) for cod liver oil treatment 24h- 300ppm, EPA (3.53±0.36mg.g OW) for cod liver oil 24h-100ppm, and OHA (3.22 ±0.09mg.g OW) for ICES and linseed treatments 24h-200ppm were obtained. DHA/EPA ratio in sturgeon larvae before active feeding was 1.75 which showed no significant difference compared to ICES in two levels (24h-100 and 200ppm) and linseed in two levels (24h-100 and 200ppm). ANOVA of different treatments showed significant differences between length, CF, survival rate, total lipid, ARA, EPA, and DHA contents of the sturgeon larvae among treatments (P〈0.05).
    Keywords: Aquaculture ; Enrichment ; Oily seed ; HUFA oils ; Feeding ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 29-40
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  • 7
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    A comparative study of proximate composition of Artemia urmiana enriched with different sources and levels of HUFA (2021)
    In:  http://aquaticcommons.org/id/eprint/23765 | 18721 | 2018-07-25 07:39:55 | 23765 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-15
    Description: The nutritional quality of commercially available Artemia strains is relatively poor in Eicosapentaenoic acid (EPA), Arachidonic acid (ARA) and especially Docosahexaenoic acid (DHA). Hence, it is essential and common practice to enrich this live prey with emulsions of special oils. One commercial ICES30/4 (Belgium), Linseed oil as a vegetable oil, Cod liver oil and Sturgeon ovary oil as two animal oils with EPA amounts in these oils were 6.29, 0.03, 11.39, 7.55 and the DHA amounts were 20.90, 0.00, 7.64, 2.76 respectively with three concentrations (100, 200 and 300ppm) during two enrichment periods (12 and 24h) were tested in order to improve the HUFA content, the DHA/EPA ratio and ARA content of Artemia urmiana nauplii. The results showed that Artemia enriched with different levels of vegetable oil and enrichment periods was poor in relation to either HUFA content or DHA/EPA ratio but the fish oils and emulsion resulted in HUFA incorporation. Sturgeon ovary oil caused the poorest DHA/EPA ratio enrichment (0.40 in 300ppm-24h) but the commercial emulsion (ICES30/4) was found as the best for DHA/EPA ratio enrichment (1.20 in 300 ppm- 24h). Cod liver oil (0.53 in 100ppm-24h) can be a good internal source substitute for improving the DHA/EPA ratio enrichment compared to ICES30/4 due to price and availability. As a result, HUFA content was increased with enrichment level 200ppm during 24h. Also, all oil sources improved lipid and protein percentages in A. urmiana nauplii.
    Keywords: Biology ; HUFA ; Artemia urmiana ; Proximate composition ; Orumieh Lake ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 43-54
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  • 8
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    Study on physico-chemical characteristics of Azad dam reservoir (Sanandaj) in order to fisheries activities (2018)
    Details
    Publication Date: 2021-05-19
    Description: Dam reservoirs have important rules in aquaculture and fish farming in many countries. In this regard, water samples of Azad Dam reservoir (Sanandaj) were collected at five stations from July 2015 to June 2016. Then, the results of 18 physico-chemical parameters were compared with the aquaculture standards and thresholds. Results showed that thermocline and oxycline was started from June and they vanished in December. Maximum level of thermal and oxygen stratified were registered during August and June, respectively. Mean of the most physico-chemical parameters were significantly different between surface and bottom layers (T-Test, p〈0.05). Mean of temperature, dissolved oxygen, total alkalinity, total hardness, pH, total suspended solid, total dissolved solid and nutrients were in range of standard threshold of different countries. As a result, based on physico-chemical parameters and with proper management decision, the dam reservoir could be considering suitable for standard pattern of aquaculture activities.
    Description: Published
    Keywords: Physico-chemical ; Aquaculture ; Fisheries
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.143-158
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  • 9
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    Unknown
    Effects of enriched Artemia urmiana with HUFA on growth, survival, and fatty acids composition of the Persian sturgeon larvae (Acipenser persicus) (2018)
    Details
    Publication Date: 2021-05-19
    Description: Recently, the nutritional requirements of marine finfish larvae have received considerable attention, and studies have shown that docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) and arachidonic acid (ARA) affects the growth and survival of marine finfish larvae. This study investigated the effects of different Artemia enrichments containing variable amounts of DHA and EPA on the growth and survival of larval Persian sturgeon (Acipenser persicus). Four different Artemia enrichments ICES30/4 (with 20.90mg/g DW DHA and 6.29mg/g DW EPA), Sturgeon Ovary Oil (SOO) (with 2.76mg/g DW DHA and 7.55mg/g DW EPA), Cod Liver Oil (CLO) (with 7.64mg/g DW DHA and 11.39mg/g DW EPA) and Linseed Oil (LO) (with 0.00mg/g DW DHA and 0.03mg/g DW EPA) in seventy five aquaria (each 45 liter, with three replicates per treatment) were used. The resultant Artemia contained a different concentration of DHA (0.00-5.99mg/g DW) and EPA (0.69-4.97mg/g DW). Larvae were fed with Artemia from 3 to 20 days after active feeding at 250 prey l-1. Results showed that there were significant differences between treatments regarding to the total length and wet weight but no significant differences were found in dry weight between the larvae reared on different treatments. However, larvae reared on LO were significantly higher (in weight) than larvae reared on ICES30/4 and SOO. Larval survival on the SOO enriched Artemia (93.3±1.6) at 20th day was significantly higher than other treatments. Our results showed a positive effect of Artemia DHA proportions on growth and survival of the Persian sturgeon, and demonstrated that larvae of this species require a high ratio of dietary DHA to EPA.
    Description: Published
    Keywords: Acipenser persicus ; Sturgeon larvae ; Fatty acid composition ; Enrichments ; Artemia urmiana
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.61-72
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  • 10
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    Unknown
    A comparative study of proximate composition of Artemia urmiana enriched with different sources and levels of HUFA (2018)
    Details
    Publication Date: 2021-05-19
    Description: The nutritional quality of commercially available Artemia strains is relatively poor in Eicosapentaenoic acid (EPA), Arachidonic acid (ARA) and especially Docosahexaenoic acid (DHA). Hence, it is essential and common practice to enrich this live prey with emulsions of special oils. One commercial ICES30/4 (Belgium), Linseed oil as a vegetable oil, Cod liver oil and Sturgeon ovary oil as two animal oils with EPA amounts in these oils were 6.29, 0.03, 11.39, 7.55 and the DHA amounts were 20.90, 0.00, 7.64, 2.76 respectively with three concentrations (100, 200 and 300ppm) during two enrichment periods (12 and 24h) were tested in order to improve the HUFA content, the DHA/EPA ratio and ARA content of Artemia urmiana nauplii. The results showed that Artemia enriched with different levels of vegetable oil and enrichment periods was poor in relation to either HUFA content and DHA/EPA ratio but the fish oils and emulsion resulted in HUFA incorporation. Sturgeon ovary oil caused the poorest DHA/EPA ratio enrichment (0.40 in 300ppm-24h) but the commercial emulsion (ICES30/4) was found as the best for DHA/EPA ratio enrichment (1.20 in 300ppm-24h). Cod liver oil (0.53 in 100ppm-24h) can be a good internal source substitute for improving the DHA/EPA ratio enrichment compared to ICES30/4 due to price and availability. As a result, HUFA content was increased with enrichment level 200ppm during 24h. Also, all oil sources improved lipid and protein percentages in A. urmiana nauplii.
    Description: Published
    Keywords: Artemia urmiana ; Biochemical composition ; Nutritive value ; Marine
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.43-54
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