This study modelled two different breeding schemes and maximized the genetic gain. The global objective was a linear function of the jumping ability (JA), gaits and conformations (GAC) and a third trait, difficult to measure on a large population as quality of semen or radiographic findings (TT). The first breeding scheme called standard was based on genetic evaluation on own performances for GAC, JA and TT. The second one was a breeding scheme with a station test including indirect criteria. The results showed that female and progeny selection increased the genetic gain on the standard breeding scheme (+30% and +10% respectively). The same genetic gain (DeltaG=0.085 unit of standard deviation) was reached with standard breeding scheme and station test when this last one used also results from field test and competition test on relatives.

C. Dubois, A. Ricard

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume , , 08.09, 2006
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