The application of genomic approaches to rainbow trout aquaculture

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Aquaculture is a growing source of employment and offers the possibility for social and economic improvements in communities with limited industrial alternatives. Ontario is the major Canadian producer of rainbow trout for human consumption. Even though market demand and consumer acceptability for Ontario trout is very strong, imports of farmed fish products dominate the marketplace. The development of Canadian trout aquaculture is limited by the inability of local producers to supply seedstock to grow-out cages. Production is concentrated within the year because of the restricted spawning time of females. Also, established strains are relatively unimproved for economically important traits such as increased growth rate and the prevention of early maturation. Our long term goal is to provide the molecular genetic information that will expedite the development and availability of rainbow trout strains that are uniquely suited to Canadian