Effect of stocking density and tank colour on nursery growth performance, cannibalism and survival of the Asian seabass
            <i>Lates calcarifer</i>
            (Bloch, 1790) in a recirculating aquaculture system

Khan, Shahzad Kuli; Salin, Krishna R.; Yakupitiyage, Amararatne; Tsusaka, Takuji W.; Shrestha, Sangam; Siddique, Mohammad Abdul Momin

doi:10.1111/are.15765

Cited by 5 publications

(8 citation statements)

References 46 publications

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“…All of the parameters, including temperature (Ngugi et al, 2007), pH (Makori et al, 2017), DO and TAN levels (Caldini et al, 2015), were also within the ideal ranges for tilapia culture. These results agree with those of Afia and David (2017) and Khan et al (2022).…”

Section: Discussionsupporting

confidence: 93%

Effects of the interaction between tank color and type of feed pellets on biological and physiological indicators in red hybrid tilapia (Oreochromis mossambicus × Oreochromis niloticus) juveniles reared in brackish water

El‐Dakar,

Shalaby,

El Basuini

et al. 2023

J World Aquaculture Soc

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The present work aimed to investigate the impacts of tank color (transparent, light blue, and red), feed pellet types (floating and sinking), and their interaction on the performance and welfare of red hybrid tilapia juveniles with an initial average weight of 19.59 g for a 50 day trial period following a 3 × 2 factorial design. Fish were cultured randomly at a stoking rate of 10 juveniles/100‐L tank. Fish were fed 6 days per week at a rate of 4% biomass twice daily. Three replicates were performed for each measurement. A two‐way analysis of variance showed that using tanks of different colors (transparent, light blue, and red) has no impact on the growth, feed efficacy, survival rate, and blood composition (except for red blood cells, hematocrit, and triglycerides) of tilapia. Also, pellet types (floating and sinking) showed no significant alterations for the above variables except for glucose and hematocrit levels. Interestingly, the interaction between tank color and pellet type exhibited significant impacts on growth parameters, feed utilization, blood variables, and intestinal enzymes of red hybrid tilapia. Moreover, fish reared in transparent or light blue tanks and fed with floating diets performed the best for all evaluated parameters. Additionally, sinking pellets had better effects when combined with red (dark)‐colored tanks.

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Section: Discussionsupporting

confidence: 93%

Effects of the interaction between tank color and type of feed pellets on biological and physiological indicators in red hybrid tilapia (Oreochromis mossambicus × Oreochromis niloticus) juveniles reared in brackish water

El‐Dakar,

Shalaby,

El Basuini

et al. 2023

J World Aquaculture Soc

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“…Similar results were previously observed for C. macropomum at different growth phases [10]. Other work with the European catfish, Silurus glanis [44], and the Asian sea bass, Lates calcarifer [45], also reported similar results. However, during the larviculture of C. macropomum, the variables of weight, length and SGR did not show differences between the densities tested [12].…”

Section: Discussionsupporting

confidence: 89%

Tambaqui Production at Different Stocking Densities in RAS: Growth and Physiology

Ananias,

Silva,

Santos

et al. 2023

Fishes

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Stocking densities were evaluated for the rearing tambaqui in an RAS system. Experiment 1 used juveniles weighing 0.54 g at the following densities for 15 days: D0.3—0.3; D0.6—0.6; and D0.9—0.9 kg m−3. Experiment 2 used juveniles weighing 8.22 g at the following densities for 75 days: D0.8—0.8; D1.2—1.2; and D1.6—1.6 kg m−3. Experiment 3 used juveniles weighing 142.18 g at the following densities for 75 days: D2—2; D4—4 and D6—6 kg m−3. In Experiment 1, density did not influence performance (p > 0.05), with the exception of biomass, which was greatest in D0.9 (p < 0.05). In Experiment 2, final weight, weight gain and daily weight gain were highest for D0.8 (p < 0.05), as was triglycerides (p < 0.05), whereas biomass increased with increasing density (p < 0.05). In Experiment 3, weight, weight gain and daily weight gain were greater for D2 and D4 (p < 0.05), while final biomass was lowest for D2 (p < 0.05). Hemoglobin was lower for D4 and D6 (p < 0.05), while cholesterol and glucose levels were higher for D2 and D6 (p < 0.05). Colossoma macropomum demonstrated adaptive capacity for reared in RAS at high stocking densities.

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“…The experiment was conducted for 45 days in a RAS at the Aquaculture and Aquatic Resource Management Hatchery complex, Asian Institute of Technology, Pathumthani, Thailand. The experimental fish were acclimatized in brackish water (10‰) for 48 h before stocking, following previously established procedures [34].…”

Section: Experimental Fishmentioning

confidence: 99%

“…Eighteen rectangular, white-colored plastic tanks (length: 1.08 m, width: 0.78 m, and height: 0.66 m), each tank holding 400 L of the working volume, were used for the RAS, with a flow rate maintained at 3 L/min [34]. The fish were fed with the experimental diets three times (07:00 h, 12:00 h, and 17:00 h) at 10% of their body weight for the first 15 days and then 8% for the remaining days of the experiment.…”

Section: Feeding Trialmentioning

confidence: 99%

L-Tryptophan Mitigates Cannibalism and Improves Growth of Asian seabass, Lates calcarifer Reared in a RAS System

Khan

Salin

Yakupitiyage

et al. 2023

Aquaculture Journal

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Severe cannibalism can result in a significant loss of productivity during the nursery phase of Asian seabass, Lates calcarifer. The present study aimed to determine the effect of dietary tryptophan on growth, feed utilization, cannibalism, survival, and muscle proximate composition of Asian seabass juveniles (initial size, 2.77 ± 0.04 cm in length and 0.29 ± 0.01 g in weight) in a recirculating aquaculture system (RAS) at different stocking densities. The tryptophan levels were set at 0.41% (control diet, standard dosage for normal growth and survival of Asian seabass), 1.00% (Diet 1), and 1.50% (Diet 2), while the stocking densities were set at 0.5 ind./L and 1.5 ind./L. The results indicated that dietary supplementation with L-tryptophan (TRP) and fish stocking density had a significant effect on fish growth parameters, feed utilization, cannibalism, survival, and muscle lipid content (p < 0.05) over the 45-day trial. The maximum length, weight, WG, and SGR were 11.64 ± 0.35 cm, 22.93 ± 2.67 g, 22.64 ± 2.67 g, and 9.63 ± 0.27%, respectively, in the fish fed Diet 2, and 11.35 ± 0.22 cm, 24.38 ± 1.28 g, 24.09 ± 1.28 g, and 9.82 ± 0.11% at a 1.5 ind./L stocking density. The lower FCR (0.81 ± 0.04) and higher PER (2.98 ± 0.16) ensured better utilization of Diet 1 than the other diets. Moreover, significant interaction effects between diet and stocking density were observed in total yield, cannibalism, and survival of the Asian seabass. Significantly higher survival rates of 76.11 ± 3.90% in the Diet 1 group and 76.28 ± 2.88% in 0.5 ind./L stocking density were obtained, which is promising. The study concludes that dietary supplementation with 1.00% TRP was effective in reducing cannibalism and increasing the survival of the Asian seabass nursery reared in RAS at a lower stocking density (i.e., 0.5 ind./L), whereas 1.50% supplemental TRP at a higher stocking density (i.e., 1.5 ind./L) significantly increased the cannibalism and growth, which in turn reduced the survival rate.

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Effect of stocking density and tank colour on nursery growth performance, cannibalism and survival of the Asian seabass Lates calcarifer (Bloch, 1790) in a recirculating aquaculture system

Cited by 5 publications

References 46 publications

Effects of the interaction between tank color and type of feed pellets on biological and physiological indicators in red hybrid tilapia (Oreochromis mossambicus × Oreochromis niloticus) juveniles reared in brackish water

Effects of the interaction between tank color and type of feed pellets on biological and physiological indicators in red hybrid tilapia (Oreochromis mossambicus × Oreochromis niloticus) juveniles reared in brackish water

Tambaqui Production at Different Stocking Densities in RAS: Growth and Physiology

L-Tryptophan Mitigates Cannibalism and Improves Growth of Asian seabass, Lates calcarifer Reared in a RAS System

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