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Strain comparisons in aquaculture species: a manual
Type: Manual
When 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 ...
Genetic improvement of the herbivorous blunt snout bream (Megalobrama amblycephala)
Type: Journal Article
Selection experiments with the herbivorous blunt snout bream or Wuchang bream (Megalobrama amblycephala) were started in 1985. Mass selection for size and length/depth ratio resulted in a significant increase in growth and ...
Genetic make up of exotic catfish Clarias gariepinus in India
Type: Journal Article
Twelve enzymes were assayed in Clarias gariepinus collected from India and Thailand. Genetic variation was observed at eight loci, viz EST-1* and 2*, AAT*, ODH*, MDH* GPI* L, GPI-1*M and HK*. Observed heterozygosities were ...
Growth performance of mixed sex, hormonally sex reversed and progeny of YY male tilapia of the GIFT strain, Orechromis niloticus
Type: Journal Article
The 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 ...
Applied genetics of tilapias
Type: Report
This paper reviews the successes and failures of genetic experiments on tilapias and points to various characteristics of tilapias, which require improvement for increased yields.
Genetic improvement of farmed tilapias: composition and genetic parameters of a synthetic base population of Oreochromis niloticus for selective breeding
Type: Journal Article
The 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 ...
Policies on release of improved fish strains in China
Type: Conference Paper
Since 1991, the certification, release and maintenance of new species for aquaculture have become part of the national policy in China. During the past 15 years, this policy has been conducted and improved and has begun ...
Adoption and farm-level impact of genetically improved farmed tilapia (GIFT) in the Philippines
Type: Conference Paper
Over the last four decades, the aquaculture sector especially in developing countries has experienced dramatic growth. The increase in aquaculture production is a combination of area expansion and technological change ...
Heritability estimates and response to selection for growth of Nile tilapia (Oreochromis niloticus) in low-input earthen ponds
Type: Journal Article
This study presents results of two generations of selection (G1 and G2) for growth of Nile tilapia. The selection environment consisted of earthen ponds which were fertilized daily with 50 kg dry matter (dm)/ha chicken ...
Genetic improvement of carp species in Asia (RETA 5711) : final report to the Asian Development Bank
Type: Report
ADB RETA 5711 on the Genetic Improvement of Carp Species in Asia showed that the growth performance of carps, the most cultured fish in the world, could be improved by 10% per generation of selection, based on the preliminary ...