Publications by authors named "Bernard Dumont-Saint-Priest"
Introduction: In order to find early selection criteria to improve the longevity of show jumping horses, a specific protocol was designed.
Methods: Before entering competition, young horses selected from extreme stallions for longevity were measured for many traits, including blood parameters. Blood samples were taken from 952 horses aged 2-4 years old, sired by two groups of stallions: one with unfavorable (U) and the other with favorable (F) extreme estimated breeding values for functional longevity.
Article Synopsis
- Researchers analyzed the anatomy of 2,089 jumping horses using 3D video to identify 43 anatomical landmarks and defined new phenotypes that captured the horses' shapes, which were then utilized in genetic studies.
- They discovered ten distinct shapes accounting for 86% of anatomical variance, with varying heritabilities, and identified a weak genetic link between one shape and competition success.
- The findings suggest that breeding goals set by judges may focus on improving certain anatomical features that negatively correlate with each other, highlighting complex relationships in horse morphology and genetics despite SNPs associated with height not directly correlating to specific shapes.
Functional longevity is essential for the well-being of horses and the satisfaction of riders. Conventional selection using longevity breeding values calculated from competition results is not efficient because it takes too long to obtain reliable information. Therefore, the objective was to identify early criteria for selection.
View Article and Find Full Text PDFThe aim was to assess the efficiency of gaits characteristics in improving jumping performance of sport horses and confront accelerometers and judge scores for this purpose. A sample of 1,477 young jumping horses were measured using accelerometers for walk, trot, and canter. Of these, 702 were genotyped with 541,175 SNPs after quality control.
View Article and Find Full Text PDFThe aim of this study was to evaluate the genetic component of the locomotor jumping ability, via a wearable accelerometer sensor, and to estimate the genetic correlation with performance in competition, to introduce such criteria in selection schema. A sample of 1,056 young 3-year-old horses were equipped with a 3-dimensional accelerometer during a free jumping test, in regular breeding shows from 2015 to 2017. Seven variables were extracted from the dorso-ventral acceleration curve for the last three jumps over a double bar obstacle of 1.
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