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No Thumbnail AvailableBook (series)Genetic resources of common carp at the Fish Culture Research Institute Szarvas, Hungary 2001
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No results found.The genetic resources of common carp maintained at the Fish Culture Research Institute in Szarvas, Hungary, are described. Eighteen Hungarian strains (landraces) and 13 strains from outside Hungary (primarily former Soviet Republics, Eastern Europe and Asia) are maintained in a living gene bank at the Institute. The genetic improvement of common carp in Hungary started in 1962 at the Fish Culture Research Institute. Traditional selection (family and mass selection), other types of genetic mani pulations, such as inbreeding, gynogenesis and hormonal sex-reversion, and intra-specific hybridization have resulted in the production and testing of more than 150 combinations of common carp strains. Five main features were evaluated that determined the economical value of the resulting strains: survival, weight gain, feed conversion ratio, slaughter value and fat content of the meat. These research efforts produced three outstanding hybrids of common carp: the Sz215 mirror, the SzP31 and SzP3 4 scaly hybrids, which now represent 80 percent of the total carp production in Hungary. The Fish Culture Research Institute is a key part of a national breeding programme in Hungary that provides fish farms and fish seed production units with parental lines of hybrid common carp. -
Book (stand-alone)Forest Genetic Resources No. 25 1997The present issue of Forest Genetic Resources (FGR) goes to press immediately following the Eleventh World Forestry Congress held in Turkey 13-22 October 1997, which more than 4000 colleagues from 145 countries attended. In regard to the conservation and use of forest genetic resources, the Congress, in its deliberations and report, stressed that action to conserve, manage, sustainably utilize and enhance forest genetic resources is an urgent priority. The lead article in the present issue, whil e focusing on temperate conifers, will provide guidance in the development of in situ strategies also in other ecological zones. In addition, FGR No. 25 includes a number of additional notes and articles from colleagues in all regions of the world.
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