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Úspěšnost inseminace klisen ve vztahu k době ovulace
VACEK, David
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.
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Analýza stáda skotu mléčného užitkového typu v podmínkách ekologického zemědělství
VACEK, David
The aim of this thesis was to analyse the situation in the breeding of dairy breed Holstein cattle reared on the farm in the organic farming system. The work was focused on the milk production of dairy cows on reproduction parameters and on the influences affecting these parameters. The followed period included the year 2016. In the evaluation we included 53 heads, dams of Holstein breed and their hybrids. The length of the intervening period was assessed in 43 dams, the average length amounted 428.5 days. The structure of the herd by year of dams' birth formed from 20.75 % dams was born in the year of 2013. At the first calving were dairy cows the entire herd average age 30.4 months. According to the lactation most dairy cows on 2nd lactation, i.e. 24.53 %, at least then 10th lactation, i.e. 1.88 %. The average milk yield per cow per day was greatest in the month of May and 24.5 kg and lowest in the month of November and that of 15.3 kg. The average milk yield per day was 20.96 kg of milk and the annual was 6392.8 kg of milk. The average fat content in milk was 4.03% and the average protein content was 3.36 % in the milk from all the cows. Average number of somatic cells was 152500 in 1 ml of milk and the average total number of microorganisms was 21830 micro-organisms in 1 ml of milk.
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Fraud investigation and anti-corruption legislation
Vacek, David ; Dvořáček, Jiří (advisor) ; Štědroňský, Václav (referee)
This paper deals with the subject of fraud investigation. Fraud investigation and forensic audit as such are defined in the first part of the paper. Requirements to become a fraud investigator are described in the next part. A theory surrounding frauds is also presented (incl. most common fraud schemes, fraud triangle etc.). The author also describes foreign anti-corruption legislation which has power to punish corruption which took place on the soil of Czech Republic. An example of how breach of FCPA in the Czech Republic has been investigated is presented by the end of the paper.
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