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Způsoby hodnocení stresu u koní
ČERNÁ, Michaela
This bachelor's thesis deals with the currently highly addressed issues in horse bree-ding, which is stress. It can be caused by a number of causes and lead to a number of undesirable consequences. These can adversely affect the health, performance or behavior of the animals. Therefore, this is a very important topic for horse breeders. The aim of this bachelor thesis was to write available current information about horse stress and select appropriate methods for its evaluation. The following proce-dures were chosen: heart rate, cortisol levels, body temperature and eye temperatu-re. The observation included 3 individuals who were integrated into the new herd. The most effective way to evaluate the degree of tremor in the incorporation of horses into a new herd was to measure the temperature of the eye using a thermal camera. Within 3 days, the value of the eye temperature dropped from 35.5 °C to 31.6 °C. An invasive and accurate method for determining stress in horses was found-free determination of blood cortisol concentrations, which were recorded at 64.3 nmol / l, 29.7 nmol / l when collected at 17:00 and 149 nmol / l when collected at 10:00. The morning time proved to be more suitable for blood collection to assess the degree of stress. Heart rate was recorded as normal (36 bpm, 44 bpm) and did not reflect the stress response. Rectal temperature measurement has proven difficult to perform in horses in a new environment and under stress. Eye temperature measurement proved to be the most accurate method for asses-sing stress in horses and blood cortisol levels, which is more suitable for scientific purposes. However, the goal of every breeder should be to try to prevent stressful situations, especially by fulfilling the welafre in horse breeding.
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