Browsing by Author "Eknath, A.E."
Now showing items 1-19 of 19
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Approaches to national fish breeding programs: pointers from a tilapia pilot study
(1991)Type: Journal ArticleDetails are given of a framework for developing breeding programmes using experience from the Genetic Improvement of Farmed Tilapias project which focussed on Nile tilapias (Oreochromis niloticus ). The following aspects ... -
Biochemical and morphometric approaches to characterize farmed tilapias
(1991)Type: Journal ArticleBiochemical (electrophoresis and mitochondrial DNA) and morphological analysis are important tools for the characterization of strains. Reference is made to studies conducted in the framework of the Genetic Improvement of ... -
Current trends in the Asian tilapia industry and the significance of genetically improved tilapia breeds
(1997)Type: Book ChapterTilapia production is increasing rapidly in Asia, and is one of the most popular aquaculture activities in PR China, Philippines, Indonesia, Taiwan and Thailand. The most popular farmed tilapia species is still the Nile ... -
Genetic Improvement of Farmed Tilapias (GIFT) phase II (January 1993 to December 1997): plan of project activities - year 2 (January to December 1994)
(1994)Type: ReportThe GIFT project is a major strategic research initiative in applied genetics and breeding in tropical aquaculture. The Nile tilapia (Oreochromis niloticus) was selected as a pilot species for the GIFT project because of ... -
Genetic Improvement of Farmed Tilapias (GIFT) Project: final report, March 1988 to December 1997
(1998)Type: ReportThe GIFT Project is one of the longest multidisciplinary research and development program implemented by ICLARM and its partners. It began in March 1, 1988 and was successfully concluded in December 31, 1997. The ... -
Genetic improvement of farmed tilapias: composition and genetic parameters of a synthetic base population of Oreochromis niloticus for selective breeding
(2007)Type: Journal ArticleThe present study is based on data recorded from fish of the third generation of the GIFT project (Genetic Improvement of Farmed Tilapias). The objective of the study was to compose a synthetic base population of Nile ... -
Genetic improvement of farmed tilapias: Genetic parameters for body weight at harvest in Nile tilapia (Oreochromis niloticus) during five generations of testing in multiple environments
(2012)Type: Journal ArticleThe main objective of this paper was to report more reliable estimates of the genetic variation and the genotype by test environment interaction for harvest body weight in the GIFT population in the Philippines than could ... -
Genetic improvement of farmed tilapias: growth performance in a complete diallel cross experiment with eight strains of Oreochromis niloticus
(1998)Type: Journal ArticleA complete diallel cross experiment was carried out with eight strains of Nile tilapia (Oreochromis niloticus). The strains represented four wild populations collected from various locations in Africa and four populations ... -
Genetic improvement of farmed tilapias: Response to five generations of selection for increased body weight at harvest in Oreochromis niloticus and the further impact of the project
(2017)Type: Journal ArticleSelection for increased body weight at harvest in Nile tilapia (Oreochromis niloticus) was carried out for five generations from 1991 to 1996, as a part of the project Genetic Improvement of Farmed Tilapias (GIFT). The ... -
Genetic variation in lytic activities of blood serum from Nile tilapia and genetic associations with survival and body weight
(1999)Type: Journal ArticleThe objective of the present investigation was to determine the genetic variation in lysozyme activity and SH activity in blood serum from a family material of Nile tilapia (O. niloticus) and to study the genetic associations ... -
International Network on Genetics in Aquaculture
(1994)Type: BookThis publication provides the background information and rationale for the establishment of the Internal Network on Genetics in Aquaculture (INGA). -
Multiple haemoglobins in three tilapiine species of the genus Oreochromis and in eight strains of O. niloticus
(1996)Type: Journal ArticleAmong three tilapiine species, Oreochromis aureus (Steindachner), O. mossambicus (Peters) and O. niloticus (L.), fifteen banding positions of haemoglobin were resolved using citric acid-aminopropylmorpholine pH 7.0 buffer. ... -
Performance and nature of genetically improved farmed tilapia: a bioeconomic analysis
(2000)Type: Journal ArticleThe International Center for Living Aquatic Resources Management (ICLARM), in collaboration with its partner organizations, has developed an improved strain of Nile tilapia (known as the GIFT strain) which shows superior ... -
Photographic image analysis for morphometric studies of tilapia
(1991)Type: Journal ArticleBiologists have long employed morphometry as a tool in identification, grouping of populations and stock identification of fish. For tilapias, studies have been made on the variability of morphomeric characters in Egyptian ... -
Response to bi-directional selection for frequency of early maturing females in Nile tilapia (Oreochromis niloticus)
(1999)Type: Journal ArticleThe present study was carried out to investigate a simple method for recording the occurrence of early maturing females in Nile tilapia at a fixed time after stocking and to estimate the response to bi-directional selection ... -
Responses to bi-directional selection for frequency of early maturing females in Nile tilapia (Oreochromis niloticus)
(1999)Type: Journal ArticleThe present study was carried out to investigate a simple method for recording the occurrence of early maturing females in Nile tilapia at a fixed time after stocking and to estimate the response to bi-directional selection ... -
Simple broodstock management to control indirect selection and inbreeding: Indian carp example
(1991)Type: Journal ArticleFollowing a survey of the important traits of Indian carp broodstock at some southern Indian hatcheries, it was found that the broodstock selection was size selective, exerting strong, negative selection of prematuration ... -
Socioeconomics and production efficiency of tilapia hatchery operations in the Philippines
(2000)Type: Journal ArticleWith the recent availability of genetically improved Nile tilapia strain in the Philippines, it is important to look at the existing profile of tilapia hatchery operations in the country to help examine the potential ... -
The Genetic Improvement of Farmed Tilapias (GIFT) project: the story so far
(1991)Type: Journal ArticleThis issue of Naga features three articles about a project on the Genetic Improvement of Farmed Tilapias (GIFT) and a related article on the trend to genetic deterioration in some carp hatcheries. The first is on the genesis ...
