Úspěšnost inseminace klisen ve vztahu k době ovulace

Mare rate of conception is influenced by many factors. Apart from the impact of the mare and the stallion, the breeder also represents one of these factors. The aim of this master's thesis is to assess the impact of the insemination dose storage, the period between the insemination and ovulation and the mare's age on the actual conception. The results are based on the assessment of forty-nine Czech Warmblood mares from the farms of Újezd and Zduchovice. Their conception rate was monitored throughout the years 2019 and the assessed affecting factors include the kind of semen storage (frozen or fresh chilled semen), the mare's age and the period between ovulation and insemination. The initial assumption that the sort of semen storage (p-value > 0.05) influences the rate of conception has been disproven because the conception rate for frozen semen was 52 % and it increased only by 6 %, amounting to 58 % in total for fresh chilled semen. As far as the age factor is concerned, there was almost no difference (p-value > 0.05) in the ages of gravid and non-gravid mares that were supposed to conceive during their first rut. The average age of pregnant mares is 10 (n = 19), therefore only one year more in comparison with non-pregnant mares (9 year, n = 30). The influence of the period between the insemination and the ovulation on the conception rate has not been proven either. While being monitored, no period between the insemination and ovulation exceeded the recommended length. In conclusion, the breeder can lessen the impact of harmful factors on the conception rate, for example the mare's age, the period between insemination and ovulation and the kind of semen storage