Some phenotypic and genetic parameters of racing performance in Arabian horses

Koseman A., ÖZBEYAZ C.

ANKARA UNIVERSITESI VETERINER FAKULTESI DERGISI, cilt.56, sa.3, ss.219-224, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 56 Sayı: 3
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1501/vetfak_0000002221
  • Dergi Adı: ANKARA UNIVERSITESI VETERINER FAKULTESI DERGISI
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.219-224
  • Anahtar Kelimeler: Arabian horse, environmental factors, heritability, racing performance, THOROUGHBREDS
  • Ankara Üniversitesi Adresli: Evet

Özet

The aim of this study was to investigate the factors affecting racing performance and to estimate the heritability of racing performance in Arabian horses. In this study the records were obtained from 6203 races of 616 male foals of 37 stallions racing at open races in different race tracks in Turkey during the years of 1991-2000. The least squares mean of racing time was found to be 176.29 +/- 0.95 seconds and there were significant differences (p<0.001) in racing years. racing distances, racing groups and race tracks. The estimated mean value for the amount of earning was 15660.6 +/- 556.7 $ (USA). The effect of mare age, year, distance, racing group, race tracks and foal age on the earning were significant (p<0.05; p<0.001). There were statistically significant differences among mean value of speed (m/second) for all of the investigated factors and the variance among stallions Was found to be significant. The heritability of mean speed was estimated as 0.170 +/- 0.001 according to paternal half sib correlation method, the heritability according to the mean amount of earnings was 0.46 +/- 0.15. In this Study heritability for racing performance was found to be moderate and therefore it is concluded that this character was improved by selection.