Evaluation of Hungarian Sporthorse mare performance tests

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Dátum
2010-10-05
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Absztrakt

Results of the Hungarian Sporthorse mare performance tests were evaluated. Data from the period of 1993-2009 were used, covering scores of 618 3-year-old and 310 4-year-old mares, 109 of them were tested at both ages. Seventeen traits were scored on the tests, which covered ten conformational, three free jumping performance and four movement analyses traits, respectively. Breeding value estimation was based on BLUP animal model. Test year, age and owner were included in the model as fixed effects. Variance components were estimated with VCE-6 software package. Heritabilities ranged from 0.32 (frame) to 0.50 (saddle region) for conformation traits, from 0.39 (jumping style) to 0.49 (jumping ability and jumping skill) for free jumping traits and from 0.20 (walk) to 0.48 (canter) for movement analysis traits. Breeding value indexes were constructed for each trait group. Conformation index was computed based on the weighted scores of the breeding values of conformational traits. The conformational score scales were used as weightings. Free jumping and movement indexes contain the proper breeding values with equal weights. A total index was also constructed using conformation index, two times the free jumping index and two times the movement index. Each breeding values and breeding value indexes were presented with the mean 100 and standard deviation of 20 for the easier understanding.

Leírás
Kulcsszavak
Jogtulajdonos
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Egyéb azonosító
Forrás
Acta Agraria Debreceniensis, No. I (2010): Journal Of Agricultural Sciences - Supplement , 83-87
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