Acronym PROGRESS
Category
Marine Biotechnology
Title Protein and growth efficiency in salmonid selection Programme FP5
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source European Coordinator Kari Ruohonen Coordinator email kari.ruohonen@ewos.fi
Coordinator institution
MTT - MTT Agrifood Research Finland (Finland)
Institutions involved
IMR - Institute of Marine Research (Norway) ,
MTT - MTT Agrifood Research Finland (Finland) ,
UOA - University of Aberdeen (United Kingdom) ,
Start year 2001 End year 2005 Funding (€) € 1,294,017 Website https://cordis.europa.eu/project/id/Q5RS-2001-00994 Summary The overall goal is to establish a sufficient knowledge base to facilitate new selection programmes aimed at improving protein growth. Three major objectives are identified: 1. To provide reliable heritability estimates for protein growth, protein efficiency and meat quality. 2. To develop predictive tools to recognise the high quality genotypes of these important traits with the help of genetic correlations and growth curve models for protein growth and lipid deposition. 3. To understand the biological correlatives causing variation in these traits, genetic correlations and growth curves. Six work packages form a three step work plan. The first consists Of rearing rainbow trout according to a carefully planned family-based breeding scheme to provide the necessary genetic setup. The number and measurements of fish to be sampled to obtain reliable genetic information is large but has been optimised for this project by a simulation study to make it more manageable. 210 families with a total of 2680 individuals will be taken from an on-going selection programme at the age of 0+ and grown to the age of 2+ (about 2 kg). The second step is the sampling, analysis and interpretation of biological material collected from these fish. This step consists of three work packages: a. Growth and feed intake: The variables measured are growth with frequent weighings, feed intake at three ages (three repeated measurements in each) with the x-ray method and changes in body composition and conformation. Muscle biopsies are taken for protein, lipid and RNA:DNA determination, b. Protein synthesis and metabolism: Protein synthesis and degradation rates will be measured from a subset of 45 families with the stable isotope 15-N method. Oxygen consumption will be measured simultaneously by closed respirometry and c. Muscle structure and composition: Muscle fibre growth patterns and lipid deposition will be studied from a subset of 45 families and final muscle quality evaluated from all 210 families. A fat meter is to be tested as a non-invasive method for lipid deposition. The third step is the genetic analyses and modelling of the materials collected. This breaks into two work packages: computation of breeding values and genetic correlations of the measured traits and modelling of individual growth trajectories in terms of wet weight, protein and lipid deposition with a subsequent genetic analysis of these models.
Keywords
Fish quality;
Fish biology;
Selective breeding;
Trout;
Fish;
Genetic;
Marine Region
76
Not associated to marine areas
0
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