Screening tilapia for culture in sea water in Kuwait

Hopkins, Kevin D.; Ridha, Mohammad T; Leclercq, D.; Al‐Meeri, A.A.; Al-Ahmad, Thani A.

doi:10.1111/j.1365-2109.1989.tb00366.x

“…spilurus hybrid (Al‐Ahmad, Ridha & Al‐Ahmed ; Hopkins et al . ). The combination of two desirable traits from two tilapia species through interspecific hybridization has led to the production of a hybrid characterized by improved environmental tolerance and improved growth performance (Bartley, Rana & Immink ).…”

Section: Introductionmentioning

confidence: 97%

“…Among the tilapia species known to tolerate and thrive successfully in full‐strength seawater (salinities ≤38 g L −1 ) are Tilapia zillii (Chervinski & Hering ), the biparental tilapia, Sarotherodon melanotheron , which can survive salinities up to 120 g L −1 (Baroiller et al . ), and the maternal mouth brooders such as O. mossambicus (Villegas ) and O. spilurus (Hopkins, Ridha, Leclercq, Al‐Ameeri & Al‐Ahmad ; Cruz & Ridha , ; Deguara & Agius ; Jonassen, Pittman & Imsland ). Moreover, some of tilapia hybrids are known to thrive well in saline environments.…”

Section: Introductionmentioning

confidence: 99%

Preliminary observations on growth and survival ofOreochromis spilurusx GIFTOreochromis niloticusF₁reciprocal hybrids in fresh and seawater

Ridha

¹

2012

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Tilapia has a significant potential for culture in saline environments. There is an increasing demand among tilapia producers to develop a tilapia hybrid that can survive well in marine water conditions. This study compared mean weight (MWT), daily growth rate (DGR), specific growth rate (SGR), survival, feed conversion ratio (FCR), condition factor (K), production rate (PR) and rate of skin lesions, and tail and fin rot as well as eye cataract in the Genetically Improved Farmed Tilapia strain (GIFT) of the Nile tilapia, Oreochromis niloticus (NN) and the salt-tolerant Oreochromis spilurus (SS), and their F 1 reciprocal hybrids; O. niloticus ♀ x O. spilurus ♂ (NS) and O. spilurus ♀ x GIFT O. niloticus ♂ (SN) in freshwater (0 g L À1 ) and seawater (40 g L À1 ). Fish (3.5 g) were stocked at 150-fish m À3 and fed with sea bream pellets (47% protein) for 180 days. Results showed that in seawater, the SN hybrid had the highest values for MWT (165.9 g), DGR (0.9 g fish À1 day À1 ), SGR (2.14% day À1 ), survival (96.3%), PR (23.9 kg m À3 ) and best FCR (1.53) followed by the NS hybrid and the NN parent. Both hybrids had significantly lower rates of skin lesions and fin and tail rot than the NN genotype. In freshwater, the NN had the highest values for MWT (255.1 g), DGR (1.40 g fish À1 day À1 ), SGR (2.38% day À1 ), K (2.13%) and PR (34.9 kg m À3 ) followed by the NS and SN hybrids. High estimate of heterosis for MWT (41.3%), DGR (42.5%), SGR (10.7%) and survival (22.1%) was obtained in the hybrids reared in seawater, indicating that a hybrid vigor was produced and the fast growth trait from the GIFT parent was successfully combined with the salinity tolerance trait from the O. spilurus parent. The better growth performance and survival of the SN hybrid in seawater indicate that this hybrid is more suitable for culture in seawater than its reciprocal hybrid.

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“…Tilapias are one of the most important fish species for freshwater aquaculture (Siddiqui & Al-Harbi 1995) and mariculture (Hopkins, Ridha, Leclercq, Al-Ameeri & Al-Ahmad 1989;Watanabe, Clark, Dunham, Wicklund & OUa 1990). Culturing of Stocking density of Ulapia fry IV-B Huang fr T-S Chiu Aquaculture Research, 1997, 28.…”

Section: Introductionmentioning

confidence: 99%

Effects of stocking density on survival, growth, size variation, and production of Tilapia fry

Huang¹,

Chiu²

1997

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In aquaculture, controls of size (length and weight) and production of fish are two important tasks to meet the market demands, and increasing the stocking density is a way of dealing with the prohlem of land shortage. In this study, tilapia fry were stocked at the densities of 0,1, 0,2, 0.4, 0,8, 1.6 and 3,2 fry 1~' for an experimental period of 10 weeks. The size, size variation, percentage sun'ival and production were found to he significantly affected hy stocking density, hut not for condition factor. The simple linear regression model, after the logarithmic transformation, was appropriate for the relationship hetween size and experimental period. The percentage survivals at al! stocking densities were high ( > 95%). especially at the stocking density of 0,4 fry 1"' and less (100%). At the higher densities, percentage survival and experimental periods were anti-logistically related. At the end of the experiment, there was a negative relationship hetween the logarithms of size and the logarithms of stocking density, but a positive relationship between the logarithms of production and the logarithms of stocking density.

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“…Tilapias are one of the most important fish species for freshwater aquaculture (Siddiqui & Al-Harbi 1995) and mariculture (Hopkins, Ridha, Leclercq, Al-Ameeri & Al-Ahmad 1989;Watanabe, Clark, Dunham, Wicklund & OUa 1990). Culturing of tilapias has become more popular because it is relatively easy in a variety of aquaculture systems and because tilapia are favourable food fishes (Siddiqui & Al-Harbi 1995), While a number of studies have examined biological conditions, such as growth, survival and production of various tilapia species under different stocking densities (Siddiqui.…”

Section: Introductionmentioning

confidence: 99%

Effects of stocking density on survival, growth, size variation, and production of Tilapia fry

Huang

¹

,

Chiu

²

1997

View full text Add to dashboard Cite

In aquaculture, controls of size (length and weight) and production of fish are two important tasks to meet the market demands, and increasing the stocking density is a way of dealing with the prohlem of land shortage. In this study, tilapia fry were stocked at the densities of 0,1, 0,2, 0.4, 0,8, 1.6 and 3,2 fry 1~' for an experimental period of 10 weeks. The size, size variation, percentage sun'ival and production were found to he significantly affected hy stocking density, hut not for condition factor. The simple linear regression model, after the logarithmic transformation, was appropriate for the relationship hetween size and experimental period. The percentage survivals at al! stocking densities were high ( > 95%). especially at the stocking density of 0,4 fry 1"' and less (100%). At the higher densities, percentage survival and experimental periods were anti-logistically related. At the end of the experiment, there was a negative relationship hetween the logarithms of size and the logarithms of stocking density, but a positive relationship between the logarithms of production and the logarithms of stocking density.

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Screening tilapia for culture in sea water in Kuwait

Cited by 9 publications

References 4 publications

Preliminary observations on growth and survival ofOreochromis spilurusx GIFTOreochromis niloticusF₁reciprocal hybrids in fresh and seawater

Preliminary observations on growth and survival ofOreochromis spilurusx GIFTOreochromis niloticusF₁reciprocal hybrids in fresh and seawater

Effects of stocking density on survival, growth, size variation, and production of Tilapia fry

Effects of stocking density on survival, growth, size variation, and production of Tilapia fry

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Screening tilapia for culture in sea water in Kuwait

Cited by 9 publications

References 4 publications

Preliminary observations on growth and survival ofOreochromis spilurusx GIFTOreochromis niloticusF1reciprocal hybrids in fresh and seawater

Preliminary observations on growth and survival ofOreochromis spilurusx GIFTOreochromis niloticusF1reciprocal hybrids in fresh and seawater

Effects of stocking density on survival, growth, size variation, and production of Tilapia fry

Effects of stocking density on survival, growth, size variation, and production of Tilapia fry

Contact Info

Product

Resources

About

Preliminary observations on growth and survival ofOreochromis spilurusx GIFTOreochromis niloticusF₁reciprocal hybrids in fresh and seawater

Preliminary observations on growth and survival ofOreochromis spilurusx GIFTOreochromis niloticusF₁reciprocal hybrids in fresh and seawater