Optimizing mating schemes in fish breeding

E. D'Agaro, John Woolliams, Chris Haley, D. Lanari

Research output: Contribution to journalArticlepeer-review

Abstract

The optimal contribution selection method and the simulated annealing algorithm were used to maximize the genetic gain and reduce inbreeding in fish breeding populations. This study considered the following mating designs: full factorial (3 x 3); full factorial (6 x 6) and nested (6 males x 18 females). A quantitative trait based on a strictly additive and polygenic model was simulated. Two levels for the number of genotyped offspring (360 or 720) and three levels of heritability (0.1; 0.3; 0.5) were assumed. The best results in terms of Delta F and Delta G were obtained with the full factorial design (6 x 6) and considering a trait with a high heritability. The optimal family size was found at 20 fish per mating.
Original languageUndefined/Unknown
Pages (from-to)795-796
Number of pages2
JournalItalian Journal of Animal Science
Volume6
DOIs
Publication statusPublished - 2007
Event17th Congress of the Scientific Association of Animal Production - Alghero, Italy
Duration: 29 May 20071 Jun 2007

Keywords

  • simulation
  • Fish
  • optimium contribution
  • annealing algorithm

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