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  • 1
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    Feasibility on cage culture of the orange-spotted grouper (Epinephelus coioides ) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The present study was carried out to evaluate the possibility of rearing the orange-spotted grouper (E. coioides) juvenile to marketable size in buoyant cages in Khuzestan province coast waters. Juvenile fishes for the study prepared from Bandar-e-Imam Marine Fish Station and reared them in 5-ton fiber glass tank for one year period using common pellet feed and trash fish to reach 50 g mean weight. Young fishes were stocked in 6 rectangular cages (3×3×3 m) to assess their growth performance with two test feeds i.e. pellet feed and trash fish (3 cages for each treatment) with the density of 30 fish /m3 (810 fish/cage) for 143 days rearing period (started on July). Better growth with significant difference (p〈0.05) were observed for fishes fed trash fish (523.71±27.95 g) than those fed pellet feed (317.53±22.10 g). Although lower survival rate was recorded for fishes fed trash fish but difference with the pellet feed was not significant (p〉0.05). Results also showed that the FCR for the trash fish was acceptable, and hence it is recommended to consider the trash fish price and its labour cost befor using it as the main diet in cage culture activity.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Orange-Spotted Grouper ; Cage culture ; Trash Fish ; Pellet feed ; Growth ; Epinephelus coioides ; Rearing ; E. coioides ; Juvenile ; Survival rate ; FCR
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 41pp.
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  • 2
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    Determination of the best protein to energy level for rearing silver sea bream (Sparidentex hasta) in the fingerling stage (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: This research has been carried out to study on the effect of different levels of protein (45, 50, 55 and 60%) and energy (20, 22 and 24 KJ/g) on growth performances, survival rate, nutrition factors and chemical composition of juvenile fish of silver sea bream (Sparidentex hasta) wheighing 27 grams.The experiment was done with 12 treatments and 3 replicate for each treatment. The rearing period was 56 days in 300 liter polyethylene tanks (with 200 liter water volume and with water exchange of 1 liter/min). In each tank eighteen fish were stocked. Biometry was done in every two weeks. At the end of experiment one fish was used for chemical analysis of body. Finally, with consider to obtain results from Two-way ANOVA, the 50% of protein level and 22 KJ/g of energy level is suitable for making nutrition for this species.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Chemical ; Dietary protein ; Dietary energy ; Seabream ; Sparidentex hasta ; Growth ; Body composition ; Rearing ; Silver sea bream ; Fingerlings ; Survival rate ; Nutrition ; Juvenile ; ANOVA ; Species
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 60pp.
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  • 3
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    Effect of dietary protein and energy levels on growth of juvenile orange-spotted grouper, Epinephelus coioides (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: In order to evaluate the protein and energy requirement of orange-spotted grouper, Epinephelus coioides Fingerlings, nine semi-purified experimental diets containing 3 levels of crude protein (40%, 50% and 60%) and 3 levels of diegestible energy (DE, 14, 16 and 18 KJgr-1) in a flow-throught system (2 Litmin-1) at 24.32±1.11°C were tested. For 8-weeks Triplicate groups of 20 fish (16.79±.4 gr) were each stocked in 300 L circular polyethylene tanks and were fed the experimental diets to approximate satiation twice daily. Results showed that the survival rate hepatosomatic index (HSI) and condition factor (CF) were independent of the dietary treatments but final weight weight gain specific growth rate(SGR) feed efficiency (FE) feed conversion ratio (FCR) protein efficiency ratio (PER) and daily feed intake (DFI) were significantly affected by protein and digestible energy levels. Diet 5 (50%CP and 16 KJ/gr DE) was the preferred diet and resulted in the best growth performance feed and protein efficiency and nutrient utilization among the examined diets. DFI was the lowest for diet with the highest protein (60%) and energy (18 KJgr-1). Apparent net protein utilization (ANPU) varied insignificantly (P〉0.05) between the treatments. viscerosomatic index(VSI) increased significantly with increasing dietary energy concentrations. Body lipid ash and moisture contents were affected by dietary protein and energy levels (P〈0.05). Body lipid content increased with increasing dietary energy levels but carcass ash and moisture decreased with increasing dietary energy levels. Body protein content was not affected by dietary energy level but significantly increased with the increase of protein from 40 to 50% at same energy levels. The study revealed that fingerlings of orange-spotted grouper E. coioides performed best a diet containing 50% crude protein, 16 KJgr-1 diegestible energy and a P/DE ratio, 31.25 mgkJ-1.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Experimental ; Epinephelus coioides ; Protein ; Energy ; Growth ; Feed utilization ; Body Composition ; Fingerlings ; HSI ; SGR ; Dietary ; E. coioides
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 58pp.
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  • 4
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    Effect of different levels of energy and different sources of protein on the growth performance, feeding index, survival rate and body composition of juvenile pacific white shrimp (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The present study was carried out in order to establish an economical affective diet so that the white leg shrimp grows well in the suthern part conditin of Iran. With the consideration of 3 dietary energy levels (E1=262, E2=312 and E3=362 kcal 100 g -1diet) and 6 ratios of fish meal:soybean meal (P1=100%, P2=80%, P3= 60%, P4=40%, P5= 20% and P6=0%), 18 experimental diets were established. Completely randomized design was used to assign 54 polyethylene 300 litrs round tanks provided by aeration and flow through water systems and was stocked by 19 juvenile as 3 replicates to each shrimps (0.77±00 g). After 56 days growing period maximum growth and nutritional performances were respectively observed in the P6E1(containing 100% soybean meal and 262 kcal 100 g -1diet) and P5E1(containing 80% soybean meal and 262 kcal 100 g -1diet). Also most survival rate of the shrimp was in the P5E2 (containing 80% soybean meal and 312 kcal 100 g 1diet) and P3E3 (containing 40% soybean meal and 362 kcal 100 g -1diet) respectively. Results of the present study suggest the possibility replacements of at least 80% of dietary fish meal by soybean meal in the diet of white leg western shrimp in the condition of southern part of Iran.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Economical ; Vannamei ; Juvenile ; Soybean ; Fish Meal ; Energy ; Protein ; Growth ; Feeding index ; Survival rate ; Body Composition ; Pacific white shrimp ; White leg shrimp ; Dietary
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 39pp.
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  • 5
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    Feasibility of mass cultivation on Nannochloropsis oculata microalgae in tubular culture system (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The presnt study has been carried out to evaluate the Nannochloropsis oculata culture performance in 100L columnar plastic bags under two chemical media (TMRL and CONWAY) and 3 light regimes in the controlled conditions. Algae used for the experiment has been provided through culture of primitive stock and by transferring it to 2 L glassy erlenmeyer and 15 L plastic containers (as intermediate stage) using CONWAY media respectively. Daily evaluation of algae concentration was carried out during the 18 days culture period. At the end of the study produced algae has been sedimented to be used for evaluation of the dried matter and algae biomass. Results of the study showed that the concentration of the algae culture was 22±3.34×106 cells. ml-1, at 8th day, and reached the concentration of 26.58±4.02×106 cells. ml-1 at the final day of the culture course. Although the results revealed the possibility of achievement of acceptable concentration for the N.oculta by the method adopted in the present study, but the achievement was not such favourable to be considered as an altenative for the common method. Nevertheless it could be considered as an alternative for the constrained situations. Moreover according to the results there was no significant algae concentration difference between light regimes (P〉0.05). Similar results were observed for the interaction effect of chemical media and light regimes. Meanwhile the ratio of dried matter obtained from algae under the TMRL media was significantly (P〈0.05) higher than that obtained from CONWAY media, but reversed results were observed for algae biomass. Light regimes were not significantly (P〉0.05) affect the algae production. Finally it could be concluded that the N.oculata algae could be successfully cultured in plastic columnar bags under the controlled conditions but the method adopted in the present study could be applicable in the improper conditions.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Micoalgae ; Nannochloropsis oculata ; Columnar plastic bags ; Light Regimes ; Chemical media ; Mass cultivation ; Tubular culture system ; Algae ; Sediment ; Biomass ; N.oculta
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 50pp.
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  • 6
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    Effect of dietary protein and lipid levels on Growth, Body composition and biological and reproductive performances of adult Yellow fin sea bream , Acanthopagrus latus (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: A study was conducted to determine the effects of dietary protein and lipid levels on growth, feed utilization and reproductive performance and biochemical composition of Acanthopagrus latus broodstock. Nine diets representing a combination of three protein levels (40, 50 and 60%) and three lipid levels (15, 20 and 25%) were tested with three replicates in 1140 L cylindrical tanks. Each replicate was stocked with 10 fish with a sex ratio of 1:1 and the average weights were 415g and 236g for females and males respectively. Fish were fed to satiation, twice daily. The growth of females was not significantly affected (P 〉0.05) protein and lipid levels but growth of males was significantly affected (P〈0.05) by dietary protein and lipid levels. Except of protein and lipid efficiency ratios, feed utilization performances of A. latus broodstock was significantly influenced by dietary protein and lipid levels. Reproductive performances of A. latus broodstock was significantly affected by dietary protein and lipid levels, except of buoyant eggs and fertilization rate percentages. Egg dimension, hatchling and 3 day-old larvae were significantly (P〈0.05) affected by dietary protein and lipid levels. Body crude protein and lipid concentration were significantly (P〈0.05) affected by dietary protein and lipid levels. Protein and lipid concentration of newly hatch and 3 daypost hatching larvae varied significantly (P〈0.05), whereas only the crude lipid content of the egg varied significantly (P〈0.05) with the change of dietary protein and lipid levels. The ratio essential amino acid to non-essential amino acid of carcass, egg, newly hatched and 3 days post hatching larvae were significantly influenced by dietary protein and lipid levels. Fatty acid profile of carcass, liver, egg, hatchling and 3 days post hatching larvae was generally affected by dietary protein and lipid levels. The present study revealed that the best biological and reproductive performance of Acanthopagrus latus broodstock could be achieved at 60% dietary protein and 20% dietary lipid concentration.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Biological ; Yellowfin Seabream ; Protein ; Lipid ; Brooder ; Dietary ; Growth ; Body composition ; Adult ; Acanthopagrus latus ; Feed utilization ; Acanthopagrus ; Broodstock ; Males ; Females ; A. latus ; Fertilization ; Egg dimension ; Larvae
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 85pp.
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  • 7
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    Feasibility on cage culture of the orange-spotted grouper (Epinephelus coioides) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25478 | 18721 | 2018-10-05 06:50:00 | 25478 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The present study was carried out to evaluate the possibility of rearing the orange-spotted grouper (E. coioides) juvenile to marketable size in buoyant cages in Khuzestan province coast waters. Juvenile fishes for the study prepared from Bandar-e-Imam Marine Fish Station and reared them in 5-ton fiber glass tank for one year period using common pellet feed and trash fish to reach 50 g mean weight. Young fishes were stocked in 6 rectangular cages (3×3×3 m) to assess their growth performance with two test feeds i.e. pellet feed and trash fish (3 cages for each treatment) with the density of 30 fish /m^3 (810 fish/cage) for 143 days rearing period (started on July). Better growth with significant difference (p〈0.05) were observed for fishes fed trash fish (523.71±27.95 g) than those fed pellet feed (317.53±22.10 g). Although lower survival rate was recorded for fishes fed trash fish but difference with the pellet feed was not significant (p〉0.05). Results also showed that the FCR for the trash fish was acceptable, and hence it is recommended to consider the trash fish price and its labour cost befor using it as the main diet in cage culture activity.
    Keywords: Aquaculture ; Iran ; Khuzestan province ; Bandar-e-Imam ; Orange-Spotted Grouper ; Cage culture ; Trash Fish ; Pellet feed ; Growth ; Epinephelus coioides ; Rearing ; E. coioides ; Juvenile ; Survival rate ; FCR
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 41
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  • 8
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    Preliminary cultivation of silver bream (Sparidentexhasta) in earthen pond using available artificial fish feed in Chowibdeh site-Abadan southern Iran (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25183 | 18721 | 2018-09-03 17:12:18 | 25183 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Possibility of rearing silver bream (Sparidentex hasta) in the earthen pond was experimented using 2 types of available artificial trout feed (FFT and GFT1). The experiment was carried out in 2 phases in Shahid-Kiani Extension Shrimp Farm in Chowibdeh Shrimp Site-Abadan Southern Iran, and earthen ponds with 0.25 ha. Area were used for both phases of the study. Juvenile fish of 3.2 g initial weight with the density of 9324 ind./ha. Were stocked for 196 days in the first phase. The initial weight, stocking density and rearing period of the fish in the second phase were 108.60 g, 9800 ind./ha. And 237 days respectively. Maximum amount of WG, FCR, PER and SVR of the fish in the first phase of the study were 100.12 g, more than 6, 0.38 and 55.32% respectively. WG and SR of the fish in the second phase respectively were 417 g and 20.74%. The Salinity of pond water was in the range between 9 and 22 ppt, and the water temperature was between 8.3 ֯C (mid December morning) and 34.8 ֯C (early Sep.....
    Keywords: Aquaculture ; Iran ; Abadan ; Chowibdeh ; Cultuation ; Silver Bream ; Sparidentexhasta ; Earthen Pond ; Artificial feed ; Rearing ; Shrimp ; Juvenile ; Weight ; Density ; Temperature
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 36
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  • 9
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    Effect of dietary protein and lipid levels on growth, body composition and biological and reproductive performances of adult yellow fin sea bream, Acanthopagrus latus (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25314 | 18721 | 2018-09-11 09:05:03 | 25314 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: A study was conducted to determine the effects of dietary protein and lipid levels on growth, feed utilization and reproductive performance and biochemical composition of Acanthopagrus latus broodstock. Nine diets representing a combination of three protein levels (40, 50 and 60%) and three lipid levels (15, 20 and 25%) were tested with three replicates in 1140 L cylindrical tanks. Each replicate was stocked with 10 fish with a sex ratio of 1:1 and the average weights were 415g and 236g for females and males respectively. Fish were fed to satiation, twice daily. The growth of females was not significantly affected (P 〉0.05) protein and lipid levels but growth of males was significantly affected (P〈0.05) by dietary protein and lipid levels. Except of protein and lipid efficiency ratios, feed utilization performances of A. latus broodstock was significantly influenced by dietary protein and lipid levels. Reproductive performances of A. latus broodstock was significantly affected by dietary protein and lipid levels, except of buoyant eggs and fertilization rate percentages. Egg dimension, hatchling and 3 day-old larvae were significantly (P〈0.05) affected by dietary protein and lipid levels. Body crude protein and lipid concentration were significantly (P〈0.05) affected by dietary protein and lipid levels. Protein and lipid concentration of newly hatch and 3 day post hatching larvae varied significantly (P〈0.05), whereas only the crude lipid content of the egg varied significantly (P〈0.05) with the change of dietary protein and lipid levels. The ratio essential amino acid to non-essential amino acid of carcass, egg, newly hatched and 3 days post hatching larvae were significantly influenced by dietary protein and lipid levels. Fatty acid profile of carcass, liver, egg, hatchling and 3 days post hatching larvae was generally affected by dietary protein and lipid levels. The present study revealed that the best biological and reproductive performance of Acanthopagrus latus broodstock could be achieved at 60% dietary protein and 20% dietary lipid concentration.
    Keywords: Aquaculture ; Iran ; Yellowfin Seabream ; Protein ; Lipid ; Brooder ; Dietary ; Growth ; Body composition ; Adult ; Acanthopagrus latus ; Feed utilization ; Acanthopagrus ; Broodstock ; Males ; Females ; A. latus ; Fertilization ; Egg dimension ; Larvae
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 85
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  • 10
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    Effect of different levels of energy and different sources of protein on the growth performance, feeding index, survival rate and body composition of juvenile pacific white shrimp (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25470 | 18721 | 2018-10-02 10:08:36 | 25470 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The present study was carried out in order to establish an economical affective diet so that the white leg shrimp grows well in the suthern part conditin of Iran. With the consideration of 3 dietary energy levels (E1=262, E2=312 and E3=362 kcal 100 g -1diet) and 6 ratios of fish meal:soybean meal (P1=100%, P2=80%, P3= 60%, P4=40%, P5= 20% and P6=0%), 18 experimental diets were established. Completely randomized design was used to assign 54 polyethylene 300 litrs round tanks provided by aeration and flow through water systems and was stocked by 19 juvenile as 3 replicates to each shrimps (0.77±00 g). After 56 days growing period maximum growth and nutritional performances were respectively observed in the P6E1(containing 100% soybean meal and 262 kcal 100 g -1diet) and P5E1(containing 80% soybean meal and 262 kcal 100 g -1diet). Also most survival rate of the shrimp was in the P5E2 (containing 80% soybean meal and 312 kcal 100 g 1diet) and P3E3 (containing 40% soybean meal and 362 kcal 100 g -1diet) respectively. Results of the present study suggest the possibility replacements of at least 80% of dietary fish meal by soybean meal in the diet of white leg western shrimp in the condition of southern part of Iran.
    Keywords: Aquaculture ; Iran ; Vannamei ; Juvenile ; Soybean ; Fish Meal ; Energy ; Protein ; Growth ; Feeding index ; Survival rate ; Body Composition ; Pacific white shrimp ; White leg shrimp ; Dietary
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 39
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