Browsing Sustainable aquaculture by Author "Nguyen, N.H."
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Genetic improvement of Nile tilapia (Oreochromis Niloticus): present and future
Ponzoni, P.W.; Nguyen, N.H.; Khaw, H.L.; Kamaruzzaman, N.; Hamzah, A.; Bakar, K.R.A.; Yee, H.Y. (2008)Type: Conference PaperWe mainly (but not exclusively) draw upon research and development work carried out by The WorldFish Center (WorldFish). We review the current state of development of selection programs that have had a main focus on growth ... -
Genetic improvement programs for aquaculture species in developing countries: prospects and challenges
Ponzoni, R.W.; Nguyen, N.H.; Khaw, H.L. (2009)Type: Conference PaperAquaculture in developing countries is largely based on unimproved fish strains. There is ample evidence indicating the potential of genetic improvement programs and a range of selection methods may be used. Examples of ... -
Genetic improvement programs for red tilapia Oreochromis spp in Asia
Nguyen, N.H.; Ponzoni, R.W.; Pongthana, N.; Hamzah, A.; Yee, H.Y. (2011)Type: Conference PaperRed tilapia (Oreochromis spp) has become popular in Asian countries due to its greater economic value relative to Nile tilapia. As there is a growing demand for quality seed of this species, the WorldFish Center has initiated ... -
Genetic parameters and correlated responses in female reproductive traits in the GIFT strain
Hamzah, A.; Nguyen, N.H.; Mekkawy, W.; Khaw, H.L.; Yee, H.Y.; Abu Bakar, K.R.; Ponzoni, R.W.; Nor, S.A.M. (2016)Type: Journal ArticleThe aim of this study was to examine genetic variation in reproductive traits and to estimate correlated responses in such traits to selection for high growth rate in the GIFT strain of Nile tilapia (Oreochromis niloticus). -
Genetic parameters for survival during the grow-out period in the GIFT strain of Nile tilapia (Oreochromis niloticus) and correlated response to selection for harvest weight
Hamzah, A.; Mekkawy, W.; Khaw, H.L.; Nguyen, N.H.; Yee, H.Y.; Abu Bakar, K.R.; Mohd Nor, S.A.; Ponzoni, R.W. (2015)Type: Journal ArticleThe aims of this study were the estimation of genetic parameters for survival rate from tagging until harvest and the evaluation of the correlated response in survival rate to selection for harvest weight in the genetically ... -
Genetics of flesh quality in fish
Nguyen, N.H. (2011)Type: Journal ArticleGenetic improvement has led to substantial increase in productivity in farmed animals and in tropical fin fish, this is evident in tilapia. The GIFT (Genetically Improved Farmed Tilapia) strain of Nile tilapia (Oreochromis ... -
Genetics of flesh quality in fish
Nguyen, N.H.; Ponzoni, R.W.; Hamzah, A.; Yee, H.Y.; Abu-Bakar, K.R.; Khaw, H.L. (2010)Type: Conference PaperFlesh quality has gained importance among consumers and in the aquaculture industry because it is directly related to human health and nutrition. Flesh quality comprises several different (freshness, appearance, smell, ... -
GIFT tilapia raise culture efficiency in Sri Lanka
Nguyen, N.H.; Ponzoni, R.W.; Jayantha Chandrasoma (2011)Type: Journal ArticleThe wide distribution and ongoing improvement of GIFT tilapia in Sri Lanka is raising the living standards of poor people and contributing to gender equality through employment for women in rural areas. So far, the GIFT ... -
Growth and survival rate of three genetic groups fed 28% and 34% protein diets
Santos, A.I.; Nguyen, N.H.; Ponzoni, R.W.; Yee, H.Y.; Hamzah, A.; Ribeiro, R.P. (2012)Type: Journal ArticleThe strain by nutrition interaction in body weight and survival rate was examined by testing three genetic groups (Selection and Control lines of the GIFT strain, and Red tilapia) at two levels of protein in the diet (28% ... -
Growth performance of mixed sex, hormonally sex reversed and progeny of YY male tilapia of the GIFT strain, Orechromis niloticus
Kamaruzzaman, N.; Nguyen, N.H.; Hamzah, A.; Ponzoni, R.W. (2009)Type: Journal ArticleThe growth performance of three experimental groups consisting of mixed sex fish (control), hormone-treated fish and progeny of YY male tilapia, all originated from the genetically improved farmed tilapia (GIFT) strain was ... -
Heterosis, direct and maternal genetic effects on body traits in a complete diallel cross involving four strains of red tilapia Oreochromis spp
Nguyen, N.H.; Pongthana, N.; Ponzoni, R.W. (2009)Type: Conference PaperHeterosis, direct additive genetic and general reciprocal effects were estimated from a complete diallel cross involving four strains of red tilapia Oreochromis spp from Malaysia, Stirling, Taiwan and Thailand. The mating ... -
Inbreeding and effective population size in the Malaysian nucleus of the GIFT strain of Nile tilapia (Oreochromis niloticus)
Ponzoni, R.; Khaw, H.L.; Nguyen, N.H.; Hamzah, A. (2010)Type: Journal ArticleA fully pedigreed population of the GIFT (Genetically Improved Farmed Tilapia) strain of Nile tilapia (Oreochromis niloticus) was established in Malaysia during 2001 and 2002. The selection program was focused on the ... -
Investment Appraisal of Genetic Improvement Programs in Nile tilapia (Oreochromis Niloticus)
Ponzoni, R.W.; Nguyen, N.H.; Khaw, H.L. (2007)Type: Journal ArticleThe economic benefit derived from a genetic improvement program with Nile tilapia (Oreochromis niloticus) was examined from a national perspective. An industry structure was assumed whereby the genetic improvement program ... -
Mass selection for increased body weight at harvest over five generations in silver barb, Puntius gonionotus
Pongthana N.; Nguyen, N.H.; Ponzoni, R.W. (2006)Type: Conference PaperSilver barb (Puntius gonionotus Bleeker 1850) is an Asian carp that is popular as a food fish. It is distributed throughout Thailand in rivers, canals, reservoirs and swamps. It is also cultured in ponds and paddy fields. ... -
Performance and survival of three red tilapia strains (Oreochromis spp) in pond environment in Kedah state, Malaysia
Hamzah, A.; Nguyen, N.H.; Ponzoni, P.W.; Kamaruzzaman, B.N.; Subha, B. (2008)Type: Conference PaperGrowth performance (body weight, standard length, body width and depth) and survival of three red tilapia (<i>Oreochromis</i> spp) strains from Malaysia, Taiwan and Thailand were evaluated using 2,867 records collected ... -
Performance of the Genetically Improved Farmed Tilapia (GIFT) strain over ten generations of selection in Malaysia
Hamzah, A.; Ponzoni, R.W.; Nguyen, N.H.; Khaw, H.L.; Yee, H.Y.; Mohd Nor, S.A. (2014)Type: Journal ArticleA selection programme using Best Linear Unbiased Prediction (BLUP) method for the estimation of genetic merit was implemented by the Department of Fisheries Malaysia (DOF) in collaboration with the WorldFish Centre. This ... -
Perspectives from Agriculture: Advances in livestock breeding-Implications for aquaculture genetics
Nguyen, N.H.; Ponzoni, R.W. (2006)Type: Journal ArticleIn this paper we present livestock breeding developments that could be taken into consideration in the genetic improvement of farmed aquaculture species, especially in freshwater fish. Firstly, the current breeding objective ... -
Potential applications of reproductive and molecular genetic technologies in the selective breeding of aquaculture species
Nguyen, N.H.; Ponniah, A.G.; Ponzoni, R.W. (2006)Type: Conference PaperThe use of reproductive and genetic technologies can increase the efficiency of selective breeding programs for aquaculture species. Four technologies are considered, namely: marker-assisted selection, DNA fingerprinting, ... -
Quantitative genetic basis of fatty acid composition in the GIFT strain of Nile tilapia (Oreochromis niloticus) selected for high growth
Nguyen, N.H.; Ponzoni, R.W.; Yee, H.Y.; Abu-Baker, K.R.; Hamzah, A.; Khaw, H.L. (2010)Type: Journal ArticleThe quantitative genetic basis of fatty acid composition was examined in the Genetically Improved Farmed Tilapia (GIFT) strain of Nile tilapia selected for high breeding value for body weight and in the contemporaneous ... -
Quantitative genetic parameter estimates for body and carcass traits in a cultured stock of giant freshwater prawn (Macrobrachium rosenbergii) selected for harvest weight in Vietnam
Hung, D.; Nguyen, N.H.; Ponzoni, R.W.; Hurwood, D.A.; Mather, P.B. (2013)Type: Journal ArticleBenefits derived from selective breeding have been demonstrated in livestock and in some fish species, but by contrast, there have been few systematic selection programs reported for shrimps. Improving growth rate has been ...











