Browsing WorldFish Community by Author "Khaw, H.L."
Now showing items 21-39 of 39
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Genetic parameters for uniformity of harvest weight and body size traits in the GIFT strain of Nile tilapia
(2016)Type: Journal ArticleAnimal breeding programs have been very successful in improving the mean levels of traits through selection. However, in recent decades, reducing the variability of trait levels between individuals has become a highly ... -
Genetic variance for uniformity of harvest weight in Nile tilapia (Oreochromis niloticus)
(2016)Type: Journal ArticleCompetition for resources is common in aquaculture, which inflates the variability of fish body weight. Selective breeding is one of the effective approaches that may enable a reduction of size variability (or increase in ... -
Genetics of adaptation in rainbow trout: a multi disciplinary approach
(2010)Type: Conference PaperAbility of fish to adapt to changing environments and stressors is a key trait for breeders, especially when they sell eggs or young fish all over the world. So far, this ability has not been introduced in any breeding ... -
Genetics of flesh quality in fish
(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, ... -
Genotype by environmental interaction for live weight between two production environments in the GIFT strain (Nile tilapia, Oreochromis niloticus)
(2009)Type: Conference PaperA genotype by environmental interaction study was conducted using the live weight data collected from three discrete spawning seasons of Genetically Improved Farmed Tilapia selective breeding program in Malaysia. Two ... -
Genotype by production environment interaction in the GIFT strain of Nile tilapia (Oreochromis niloticus)
(2012)Type: Journal ArticleThree discrete generations of GIFT fish (Nile tilapia strain, Oreochromis niloticus; a total of 10,065 fish with pedigree and phenotypic information) were tested in pond and cage culture environments to determine genotype ... -
GIFT: the story since leaving ICLARM (now known as the WorldFish Center): socioeconomic, access and benefit sharing and dissemination aspects
(2010)Type: ReportThe aim of the overall project of which this report is part is to identify possible solutions for regulating access to aquatic genetic resources and legal protection of the results of research and development in aquaculture ... -
Inbreeding and effective population size in the Malaysian nucleus of the GIFT strain of Nile tilapia (Oreochromis niloticus)
(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 ... -
Indirect genetic effects and inbreeding: Consequences of BLUP selection for socially affected traits on rate of inbreeding
(2014)Type: Journal ArticleSocial interactions often occur among living organisms, including aquatic animals. There is empirical evidence showing that social interactions may genetically affect phenotypes of individuals and their group mates. In ... -
Investment Appraisal of Genetic Improvement Programs in Nile tilapia (Oreochromis Niloticus)
(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 ... -
Performance of the Genetically Improved Farmed Tilapia (GIFT) strain over ten generations of selection in Malaysia
(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 ... -
Performances of Nile Tilapia (Oreochromis niloticus) selected for high growth rate after three generations
(2007)Type: Journal ArticleA selective breeding study for live weight based on a fully pedigreed population of GIFT (Genetically Improved Farmed Tilapia) strain was carried out at the Aquaculture Extension Centre, Department of Fisheries, Jitra, ... -
Phenotypic and genetic parameters for body traits in the giant freshwater prawn (Macrobrachium rosenbergii) in India
(2017)Type: Journal ArticlePhenotypic and genetic parameters were estimated for three body traits (harvest weight, carapace length and standard length) and for adult male morphotypes of the giant freshwater prawn Macrobrachium rosenbergii in a fully ... -
Quantitative genetic basis of fatty acid composition in the GIFT strain of Nile tilapia (Oreochromis niloticus) selected for high growth
(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 ... -
Relative performance of two Nile tilapia (Oreochromis niloticus Linnaeus) strains in Egypt: The Abbassa selection line and the Kafr El Sheikh commercial strain
(2013)Type: Journal ArticleThe Abbassa selection line (developed by selective breeding) and the Kafr El Sheikh commercial strain (widely used in Egypt), both Oreochromis niloticus, were compared at two stocking densities (two and four fish m-2). ... -
Selective breeding for increased body weight in a synthetic breed of Egytian Nile tilapia, Oreochromis niloticus: response to selection and genetic parameters
(2009)Type: Journal ArticleSelection for harvest weight was performed in a fully pedigreed synthetic line of Nile tilapia (Oreochromis niloticus) in Egypt for two generations. Records were available over three spawning seasons (2002, 2003 and 2004) ... -
Selective breeding in fish and conservation of genetic resources for aquaculture
(2012)Type: Journal ArticleTo satisfy increasing demands for fish as food, progress must occur towards greater aquaculture productivity whilst retaining the wild and farmed genetic resources that underpin global fish production. We review the main ... -
Strain comparisons in aquaculture species: a manual
(2013)Type: ManualWhen different strains or breeds of a particular species are available, the best choice is seldom immediately obvious for producers. Scientists are also interested in the relative performance of different strains because ... -
Survival, male morphotypes, female and male proportion, female reproductive status and tag loss in crosses among three populations of freshwater prawn Macrobrachium rosenbergii (de Man) in India
(2015)Type: Journal ArticleThe present study examined the variation in survival, proportion of male morphotypes, female and male proportion, female reproductive status and tag losses in nine crosses from a complete (3 × 3) diallel mating of three ...
