11 1RYHPEHU 2020, Brno, Czech Republic Evaluating and comparing descendants of stallions from the Dark Ronald line in Czech Warmblood breeding according to basic body measurements Zuzana Kubikova, Iva Jiskrova, Barbora Kubistova Department of Animal Breeding Mendel University in Brno Zemedelska 1, 613 00 Brno CZECH REPUBLIC
[email protected] Abstract: The aim of this study was to evaluate the influence of the Dark Ronald stallion line in the breeding of the Czech Warmblood. To evaluate the importance of the line, the offspring of stallions authorized to act as stud horses in the breeding of the Czech Warmblood were used. The values of the basic body measurements of their offspring (SHW, THW, ChC and CBC) were used to evaluate the quality of the stallions. A total of 6 breeding stallions were compared: two representatives of the Holsteiner horse (2765 CASSILIUS, 2666 PORTER), one Russian Holsteiner (2782 BALLAST), one Slovak Warmblood (794 CORSÁR), one Dutch Warmblood (2745 OSCAR) and one representative of the Zweibrücker breed (662 CARBIDO). The group for comparison consisted of 284 offspring of the Czech Warmblood breed from these sires. Evaluation by the GLM model detected statistically significant differences between the basic body measurements of the individual groups of offspring. The influence of the dams on the basic body measurements of offspring was taken into account by a graphical comparison of the massiveness and boniness indices. It was found that the stallion 2782 BALLAST significantly affects the massiveness of his offspring, but the dam has a greater influence on boniness than the sire. Furthermore, it was found that mares are statistically significantly more massive than stallions, but that they have a smaller cannon bone circumference.