The aim of this paper is to initiate nationwide research on trotters, in this case relations between conformation traits of their body and performance features. Material for the research was provided by 60 young trotters registered in the Danish (12) and German (48) herd books of the analysed breeds. The horses were prepared in automn 2004 for taking part in races. Trotters were also subject to 23 zoometric measurements, based on which 15 indices of their body conformation were worked out. Additionally, the evaluation of movement capacity was accomplished, including 1 – step length, its frequency as well as index and speed movement velocityof the analysed horses. Trot was repeated 3 times (starting with the slowest to the fastest one) on a specially marked part of racetrack. The evaluation of relations between measurements and indices of body conformation of the analysed trotters and their movement capacity parameters indicated the following suggestions: both the range and number of statistically significant dependencies between biometric features of trotters and their movement capacity point to the fact that croup conformation traits and height of individual parts of young growing trotters affect (positively or negatively) their movement capacity in the initial training process, the above tendencies are proved by the level of dependencies of body conformation with movement capacity parameters including a great number of statistically significant relations concerning proportions in the croup conformation (indices “shoulder part length”, “index of joint croup length”), conformation traits of shoulder belt (“shoulder part length” and “selected parts of forelimb”) as well as the rate of reconformation and chest depth, the carried out research is of introductory character but the range of revealed dependencies fully justify its continuation for young growing trotters as well as trained in subsequent stages of their racing career.
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