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  • 1
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    Effect of salinity on spawning of Yellow fin sea bream (Acanthopagrus latus) in spawning tanks (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Salinity effects on brooders spawning, growth and survival rate of yellow fin sea bream (〈i〉Acanthopagrus latus〈/i〉) fingerlings was studied in Khouzestan Marine Fishes Research Station (Bandar-e Imam) in 2002- 2003. More than 200 brooders were caught in Mahshar creeks using hook, and 6 males and 3 females of brooders were introduced to each 4 tons tank. The experiments were carried out using 3 salinity treatments (30~c1, 35~c1 and 40~c1 ppt) in 3 replications. Survival rate of brooders in 4 tons tanks during late January to 4〈super〉th〈/super〉 April was estimated more than %90 in all salinities and the maximum rate was observed in 30 ppt treatment. Spawned brooders percentage in 40 ppt was more than the two other salinities, and spawning occurred in all three replications of this treatment. In all treatment, spawning started from early march (late lunar month) at 19~'C and continued at 23~'C. Duration and replication of spawnings in 40 ppt were more than other salinities, and last about 20 days. Released eggs (2461046), amount of eggs production per day (66413), average number of eggs per brooder (312914), and average eggs per kg body weight (649460) were found in 40 ppt more than other salinities. Floating eggs ratio was more than %90 in 40 ppt and it was significantly different to the others. Fertilization and hatching rates in 40 ppt treatment (86.7, 67 respectively) were more than 30 and 35 ppt but there was no significant difference. All spawnings cases , released eggs hatched.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Salinity ; Spawning ; Yellow fin ; Bream ; Acanthopagrus latus ; Propagation ; Density ; Survival rate ; Fingerling ; Growth ; Acanthopagrus latus ; Yellow fin sea bream
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 55pp.
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  • 2
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    Effect of salinity on spawning of Yellow fin sea bream (Acanthopagrus latus) in spawning tanks (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Salinity effects on brooders spawning, growth and survival rate of yellow fin sea bream (Acanthopagrus latus) fingerlings was studied in Khouzestan Marine Fishes Research Station (Bandar -e – Imam) in 2002-2003. More than 200 brooders were caught in Mahshar creeks using hook, and 6 males and 3 females of brooders were introduced to each 4 tons tank. The experiments were carried out using 3 salinity treatments (30 ± 1, 35 ± 1 and 40 ± 1 ppt) in 3 replications. Survival rate of brooders in 4 tons tanks during late January to 4 th April was estimated more than %90 in all salinities and the maximum rate was observed in 30 ppt treatment. Spawned brooders percentage in 40 ppt was more than the two other salinities, and spawning occurred in all three replications of this treatment. In all treatment, spawning started from early march (late lunar month) at 19°c and continued at 23°c. Duration and replication of spawnings in 40 ppt were more than other salinities, and last about 20 days. Released eggs (2461046), amount of eggs production per day (66413), average number of eggs per brooder (312914), and average eggs per kg body weight (649460) were found in 40 ppt more than other salinities. Floating eggs ratio was more than %90 in 40 ppt and it was significantly different to the others. Fertilization and Hatching rates in 40 ppt treatment (86.7 , 67 respectively) were more than 30 and 35 ppt but there was no significant difference. All spawnings cases , released eggs hatched.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Salinity ; Propagation ; Yellow fin sea bream ; Spawning ; Density ; Survival rate ; Fingerling ; Acanthopagrus latus
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 65pp.
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  • 3
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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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  • 4
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    Effects of dietary protein and energy levels on the growth, feed utilization and body composition of yellow fin seabream Acanthopagrus latus juvenile (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25243 | 18721 | 2018-09-06 06:13:18 | 25243 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: A feeding trial was carried out where, three protein concentrations [45%, 55% and 65%, crude protein (CP)] was fed to yellow fin sea bream (Acanthopagrus latus) fingerlings at three dietary energy concentrations [20, 22and 24 Kj g-1 crude energy (CE)] ,to determine the protein and energy requirement for this species. Triplicate groups of 20 fish (average weight 12±.2g) was each stocked in 300-L fiberglass tanks and fed twice a day to apparent satiation. After 8 weeks, the survival was independent of the dietary treatments, but the average fish weight gain (AWG), specific growth rate (SGR), food conversion ratio (FCR) and feed efficiency ratio (FER) were significantly affected by dietary protein (P 〈 0.05). Protein retention (PR), Viscera somatic index (VSI) and intraperitoneal fat ratio (IPF) were affected by dietary energy level (P〈0.05).Grass energy retention (GER) and Condition factor (K) were affected by both dietary protein and energy levels (P〈0.05). Daily feed intake (DFI) was not affected by dietary protein and energy concentrations (P〉0.05). PER, PR, GER, VSI and IFR increased with the increase of energy from 20 to 24 Kj g-1 at the same protein level. Carcass moisture, fat and ash contents were affected by dietary protein and energy levels (P〈0.05). Carcass energy content increased with increasing dietary energy, but carcass moisture was decreased with increasing dietary energy from 20 to 24 Kj g-1.. It was concluded that the optimum dietary protein and energy level for growth of juvenile yellow fin sea bream maybe 562-574.7 g kg-1diet and 21.9- 24.56 Kj g-1 respectively.
    Keywords: Aquaculture ; Iran ; Protein ; Energy ; Yellow fin ; Sea bream ; Growth ; Body composition ; Dietary ; Feed utilization ; Acanthopagrus latus ; Juvenile ; Fingerlings ; Species ; SGR
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 46
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  • 5
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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
    Location Call Number Expected Availability
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  • 6
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    Unknown
    Effect of salinity on spawning of yellow fin sea bream (Acanthopagrus latus) in spawning tanks (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25099 | 18721 | 2018-08-22 07:24:00 | 25099 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Salinity effects on brooders spawning, growth and survival rate of yellow fin sea bream (Acanthopagrus latus) fingerlings was studied in Khouzestan Marine Fishes Research Station (Bandar-e Imam) in 2002- 2003. More than 200 brooders were caught in Mahshar creeks using hook, and 6 males and 3 females of brooders were introduced to each 4 tons tank. The experiments were carried out using 3 salinity treatments (30±1, 35±1 and 40±1 ppt) in 3 replications. Survival rate of brooders in 4 tons tanks during late January to 4^th April was estimated more than %90 in all salinities and the maximum rate was observed in 30 ppt treatment. Spawned brooders percentage in 40 ppt was more than the two other salinities, and spawning occurred in all three replications of this treatment. In all treatment, spawning started from early march (late lunar month) at 19~'C and continued at 23°C. Duration and replication of spawnings in 40 ppt were more than other salinities, and last about 20 days. Released eggs (2461046), amount of eggs production per day (66413), average number of eggs per brooder (312914), and average eggs per kg body weight (649460) were found in 40 ppt more than other salinities. Floating eggs ratio was more than %90 in 40 ppt and it was significantly different to the others. Fertilization and hatching rates in 40 ppt treatment (86.7, 67 respectively) were more than 30 and 35 ppt but there was no significant difference. All spawnings cases , released eggs hatched.
    Keywords: Biology ; Iran ; Khouzestan Province ; Bandar-e-Imam ; Mahshar creeks ; Salinity ; Spawning ; Yellow fin ; Bream ; Acanthopagrus latus ; Propagation ; Density ; Survival rate ; Fingerling ; Growth ; Acanthopagrus latus ; Yellow fin sea bream
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 55
    Location Call Number Expected Availability
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  • 7
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    Unknown
    Effects of dietary protein and energy levels on the growth, feed utilization and body composition of yellow fin seabream Acanthopagrus latus juvenile (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: A feeding trial was carried out where, three protein concentrations [45%, 55% and 65%, crude protein (CP)] was fed to yellow fin sea bream (Acanthopagrus latus) fingerlings at three dietary energy concentrations [20, 22and 24 Kj g-1 crude energy (CE)] ,to determine the protein and energy requirement for this species. Triplicate groups of 20 fish (average weight 12±.2g) was each stocked in 300-L fiberglass tanks and fed twice a day to apparent satiation. After 8 weeks, the survival was independent of the dietary treatments, but the average fish weight gain (AWG), specific growth rate (SGR), food conversion ratio(FCR) and feed efficiency ratio (FER) were significantly affected by dietary protein(P 〈 0.05). Protein retention (PR), Viscera somatic index (VSI) and intraperitoneal fat ratio (IPF) were affected by dietary energy level (P〈0.05).Grass energy retention (GER) and Condition factor (K) were affected by both dietary protein and energy levels(P〈0.05). daily feed intake (DFI) was not affected by dietary protein and energy concentrations( P〉0.05). PER, PR, GER,VSI and IFR increased with the increase of energy from 20 to 24 Kj g-1 at the same protein level. Carcass moisture, fat and ash contents were affected by dietary protein and energy levels( P〈0.05). Carcass energy content increased with increasing dietary energy, but carcass moisture was decreased with increasing dietary energy from 20 to 24 Kj g-1.. It was concluded that the optimum dietary protein and energy level for growth of juvenile yellow fin sea bream maybe 562-574.7 g kg-1diet and 21.9- 24.56 Kj g-1 respectively.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Protein ; Energy ; Yellow fin ; Sea bream ; Growth ; Body composition ; Dietary ; Feed utilization ; Acanthopagrus latus ; Juvenile ; Fingerlings ; Species ; SGR
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 46pp.
    Location Call Number Expected Availability
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