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An objective analysis of the horse’s movement is used to evaluate the usefulness of the horse for practical purposes and serves as a prognostic tool for predicting the horse’s sports performance, functional development, and potential pathological conditions. Based on a literature review, this paper presents current biomechanical principles of the translational and rotational movements of the horse’s body parts as the grounds for a kinematic analysis of the horse’s movement. The kinematic analysis involves the evaluation of time-space, linear, and angular parameters (linear and angular kinematic). The symmetric, regular, temporal, and repeatable translocation of the horse’s body parts is ensured by the synchronization of internal forces generated by muscles and gravity, acting by levers of the horse’s skeleton, which cause rotational movements around the centers of joint rotation. The principle of a torque equilibrium has become the basis for establishing the physiological normal values in movement evaluation methods. The article presents all currently known methods of kinematic evaluation of the horse’s movement along with their critical interpretation. The authors describe their own assumptions for the construction of behavioral screening equipment for the analysis of the horse’s movement and vital activity measurements.
The objective of the study was to determinate the correlation between selected parameters of boar sperm movement (type of movement and speed of movement) and the storage time of a liquid insemination dose. For dose preparation semen was diluted in a solvent that supports spermatozoa vitality for five days. Nine reproduction boars were used for the study. The spermatozoon was examined with the use of the computer sperm analyzer SCA produced by MICROPTIC S.L. The evaluation concerned the type of movement (progressive movement and other types of movement) and speed of movement (fast, medium, slow and static). Spermatozoa morphology examination was also performed and the percentage of dead spermatozoa was established. Data obtained in the study indicated that spermatozoa dose was suitable for use for 48 hours after collection. On the fourth day and later the quality parameters of the sperm insemination dose did not guarantee a sufficient fertilization rate. The method of evaluation used in the study makes it possible to verify sperm dose quality indicators over the whole time of spermatozoa storage.
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