Salinity tolerance in superior genotypes of tilapia, Oreochromis niloticus, Oreochromis mossambicus and their hybrids

Kamal, Abu Hena Md. Mostofa; Mair, G.C.

doi:10.1016/j.aquaculture.2005.02.008

Cited by 141 publications

(110 citation statements)

References 7 publications

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“…Besides, Cnaani and Hulata [6] targeted from various culture management practices and nutrition as well as physiology and genetics to propose the best approaches for improvement of salinity tolerance in tilapias. Though tilapias normally live in freshwater, few species show high salt tolerance and could be raised in brackish water or seawater [7,8].…”

Section: Introductionmentioning

confidence: 99%

Red Tilapia Broodstocks and Larval Production Under Different Water Salinities Without Acclimation

Sallam¹,

Fayed²,

El-Absawy³

et al. 2017

J Aquac Res Development

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Section: Introductionmentioning

confidence: 99%

Red Tilapia Broodstocks and Larval Production Under Different Water Salinities Without Acclimation

Sallam¹,

Fayed²,

El-Absawy³

et al. 2017

J Aquac Res Development

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“…crosses compared to their pure strains (Sutterlin 1977). On the other hand, tilapia and hybrids had better growth over a broader salinity range than either parent (Kamal and Mair, 2005).…”

Section: Source Of Experimental Animalsmentioning

confidence: 90%

“…However, hybrid vigor cannot be totally confirmed until the performance of is evaluated. For example, and are known to grow better in lower and higher salinities, respectively, which likely explains the reason for their hybrid having faster growth in a wider salinity range than either parent (Kamal and Mair, 2005).…”

Section: Sgr (Weight) = ((Ln(final Weight) -Ln(initial Weight)) / (Numentioning

confidence: 99%

Improved performance of lemon fin barb hybrid (Hypsibarbus wetmorei ♂ × Barbodes gonionotus ♀) at elevated salinities

Romano¹,

Aliff²,

Syukri³

2018

JEB

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Aim: Methodology:Results: Interpretation:Interest in lemon fin barb hybrid (LFBH) aquaculture has been increasing, but there is limited information regarding optimal nursery conditions.In this study, LFBH fry (initial mean weight = 1.3 ± 0.2 cm) were subjected to increasing salinities of 0, 3, 6 and 9 ppt. Each treatment was triplicated with 15 fish in each replicate. After 30 days, the survival, growth and whole-body histology was examined.No mortalities occurred over the study duration, but there was a significantly positive relationship (p < 0.001; R = 0.996) between salinity and specific growth rates for weight. Salinity had no adverse effect on the gill or internal organ structure, as well as no effect to the prevalence of gill mucous cells. However, there appeared to be slightly more liver glycogen in fish subjected to 6 and 9 ppt. This study demonstrates the euryhalinity of LFBH over the more stenohaline characteristic of their parent, The euryhalinity of LFBH should provide more flexibility in their culture, such as polyculture with other brackish water species, as well as in areas experiencing increase salinization. Therefore, LFBH may provide greater food security in some areas. 2Barbodes gonionotus.

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“…The results of an intensive culture of hybrid tilapia (Oreochromis niloticus × O. aureus) in floating cages in the Barra de Navidad lagoon system (Jalisco, Mexico) indicate that the culture of this hybrid in seawater for commercial purposes is feasible (Martínez-Contreras 2003). Though there are several comparative studies on the culture of tilapia species and hybrids in seawater and freshwater (Iwama et al 1997, Mena-Herrera et al 2002, Kamal and Mair 2005, Cnaani and Hulata 2011, the performance efficiency of the red tilapia hybrid Oreochromis mossambicus × O. aureus has not been well studied. Therefore, the objective of the present study was to determine the growth perfomance, survival, and oxygen:nitrogen (O:N) ratio as an indicator of the metabolic substrate of the tilapia hybrid O. mossambicus × O. aureus cultured in seawater and freshwater.…”

Section: Introductionmentioning

confidence: 99%

Growth, ammonium excretion, and oxygen consumption of hybrid red tilapia (Oreochromis mossambicus × Oreochromis aureus) grown in seawater and freshwater

Barreto-Curiel

Durazo²,

Viana³

2015

Cienc. Mar.

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Growth, ammonium excretion, and oxygen consumption of hybrid red tilapia (Oreochromis mossambicus × Oreochromis aureus) grown in seawater and freshwaterCrecimiento, excreción de amonio y consumo de oxígeno de la tilapia híbrida roja (Oreochromis mossambicus × Oreochromis aureus) cultivada en agua de mar y en agua dulce ABSTRACT. In a comparative study using the hybrid tilapia Oreochromis mossambicus × Oreochromis aureus grown in seawater and freshwater, no significant differences in growth performance (weight gain) and biological indices (e.g., feed conversion efficiency and survival) was observed after 90 days of experimentation. A common feed was formulated to contain 40% crude protein and 8.5% crude fat. Fish meal and poultry by-product meal (50:50) were used as a source of protein in the formulation. The study was conducted using recirculation systems and organisms already adapted to seawater and freshwater with an initial weight of 25.0 ± 0.06 g and 24.70 ± 0.32 g, respectively (four replicates per treatment); at the end of the experiment their final weight was 161.80 ± 12.78 g and 167.60 ± 7.29 g, respectively. The thermal growth coefficient was 0.91 and 0.89 (seawater vs freshwater), and there were no significant differences; however, the apparent digestibility of dry matter as well as per nutrient (protein, lipid, and carbohydrate) was significantly higher for the organisms in the seawater treatment. The digestibility could be associated with greater enzymatic activity in the presence of higher ionic strength. The respirometric study indicated that the O:N ratios were similar for organisms reared in seawater and freshwater, with values of 21 and 18, respectively. This indicates that this strain of tilapia uses a mixture of proteins and lipids as energy substrates. We conclude that this strain of tilapia has the potential to adapt and thrive in a marine environment and that its production practices could be expanded.Key words: hybrid tilapia, seawater, growth, O:N ratio, metabolic substrate. RESUMEN.En un estudio comparativo en el cual se utilizó el híbrido de tilapia Oreochromis mossambicus × Oreochromis aureus cultivado en agua de mar y en agua dulce no se observaron diferencias significativas en el desempeño como crecimiento en peso e índices biológicos (e.g., conversión alimenticia y supervivencia) después de 90 días de experimentación. Se utilizó un alimento común elaborado en el laboratorio que contenía 40% de proteína cruda y 8.5% de grasa cruda. Para la formulación del alimento, se utilizó harina de pescado y harina de subproducto de ave (50:50) como fuente de proteína. El estudio se realizó utilizando sistemas de recirculación y organismos de 25.0 ± 0.06 g y 24.70 ± 0.32 g para los tratamientos de agua de mar y agua dulce, respectivamente, con 4 repeticiones por tratamiento. Al finalizar el experimento los peces alcanzaron un peso de 161.80 ± 12.78 g y 167.60 ± 7.29 g, respectivamente. El coeficiente térmico de crecimiento fue de 0.91 y 0.89 (agua de mar vs agua dulce), y no se observaron diferen...

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Salinity tolerance in superior genotypes of tilapia, Oreochromis niloticus, Oreochromis mossambicus and their hybrids

Cited by 141 publications

References 7 publications

Red Tilapia Broodstocks and Larval Production Under Different Water Salinities Without Acclimation

Red Tilapia Broodstocks and Larval Production Under Different Water Salinities Without Acclimation

Improved performance of lemon fin barb hybrid (Hypsibarbus wetmorei ♂ × Barbodes gonionotus ♀) at elevated salinities

Growth, ammonium excretion, and oxygen consumption of hybrid red tilapia (Oreochromis mossambicus × Oreochromis aureus) grown in seawater and freshwater

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