Evaluation by Genotype Environmental of Racing Performance in Arabian Horses

This study was conducted to determine whether there is a relationship between the ranking of stallion’s breeding values, evaluated based on progeny rating scores, for turf and dirt racing tracks, short and medium distances. The correlation of stallion’s breeding values estimated for each kind of racing track clearly showed a positive trend, the pearson, kendall and spearman rank correlations was 0.93 (P < 0.01), 0.73 (P < 0.01) and 0.88 (P < 0.01). The correlation of stallion’s breeding values estimated for each kind of racing distances clearly showed a positive trend, the pearson, kendall and spearman rank correlations was 0.80 (P < 0.01), 0.69 (P < 0.01) and 0.84 (P < 0.01). Based on this result, concluded that Arap stallions produce progeny suited to both turf and dirt, short and medium distances track.