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Design of gramophone
Slívová, Marta ; Chorý, Tomáš (referee) ; Křenek, Ladislav (advisor)
The aim of this bachelors thesis was to design modern and functional gramophone. The product must offer the best possible sound experience and suitable design to be proper accessory in contemporary modern living. One of the most important attribute of the gramophone is supposed to be the sound quality to be competitive with widely used CD and DVD players. Reaching nearly same sound quality could be convincing to forget the argument that analogous sound record is archaic. It could help to show gramophones as fully competitive and worthy devices among the digital ones.
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The role of mitochondrial DNA in reproduction
Svobodová, Mariana ; Daňková, Pavlína (advisor) ; Jelínková, Ladislava (referee)
The bachelor's thesis focuses on the role of mitochondrial DNA (mtDNA) in human reproduction, especially describing the differences in mtDNA dynamics in oogenesis, spermatogenesis and early embryo development. The physiological function of mtDNA is complemented by its pathologies and their effect on fertility and the ability of the embryo to implant successfully. Furthermore, mtDNA is discussed as a possible diagnostic marker in the evaluation of the quality of sperm, eggs and embryos. These findings of these studies are especially significant for assisted reproduction, where the goal is to select the highest quality embryo with the greatest implantation potential. The work also briefly mentions the presence of cell free mtDNA in the mother's blood and its connection with the development of preeclampsia. Key words: mtDNA, mitochondria, reproduction, (in)fertility
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Poruchy plodnosti prasnic
Vašicová, Tereza
The bachelor thesis focuses on fertility disorders in sows. The first part describes the reproductive system, i.e. the reproductive organs of the sow; fertility and its parameters, which include internal and external factors affecting fertility, such as nutrition, microclimate, lenght of the inter-period or age of the sow. The sexual cycle of the sow i salso briefly described, covering all stages, namely proestrus, estrus, me-testrus and diestrus. The second part focuses on fertlity disorders, which are divided into congenital, which include developmental disorders or anomalies, acquired, which are most commonly caused by viruses or bacteria, and separately also infertility. For the disorders, the clinical manifestations of the disease, their onset, or prevention, and in some cases, if known, therapy are described.
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Porovnání obtížnosti porodů u různých plemen skotu ve vybraném chovu
Kozlová, Eliška
This bachelor thesis examines the issue of difficult calving depending on breed affiliation and utility type. This work summarizes three basic breeds of different utility types that are bred in the Czech Republic. Furthermore, the work deals with the description of estrous cycle, methods of insemination, the period of gestation and the subsequent parturition. During parturition, emphasis is mainly placed on its progress. Therefore, the work also deals with internal and external factors. These factors aren’t always controllable, but some of them can be influenced by keeper or directly by breeding. Early detection of dead fetus is also important for calving. Whether the calving is assisted and whether any assistance is performed in an appropriate way has a relatively large influence on the course of calving itself. Depending on the extend to which assistance was required, the overall course of the birth is also evaluated. In this work was evaluated the calving process in Czech Fleckvieh and Charolais breeding. Both breeds were kept in the company ZEAS Lysice a.s., which is located in the South Moravian region. The results of the calving process were compared according to breed, year of calving and whether they were first-calf or older cows. The analysis of the data showed a significantly high incidence of the desired calving process in the Charolais breed, up to 99,28 %. Czech Fleckvieh showed a higher incidence of unwanted calving, which was 1,72 %. It also has been proven that older cows calving process was better than heifers. In the analysis of the year of calving, its influence on the course of calving wasn’t proven.
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Vyhodnocení reprodukce a masné užitkovosti na vybrané pštrosí farmě
Rýdlová, Markéta
The goal of the thesis is to evaluate reproduction and meat quality on a selected ostrich farm. Reproduction was evaluated by the number of laid eggs, fertilized eggs, hatched chicks, and raised chicks up to 6 months in the years 2020, 2021, and 2022. Meat quality was evaluated by the influence of gender and muscle type on dry matter, protein, fat, ash, meat brightness, proportion of red and yellow spectrum and the strength of muscle fibbers. During the year 2020, a total of 225 eggs were laid with a hatching success rate of 72.44 %. In 2021, the females laid a total of 159 eggs and the hatching success rate was 83.65 %. In 2022, a total of 214 eggs were laid with a hatching success rate of 80.37 %. Gender did not have a significant effect on the quality indicators of meat. Muscle type did not have a significant (p >0,05) effect on dry matter, protein, intramuscular fat, pH, tenderness, or proportion of red and yellow spectra. Muscle brightness, ash content, and muscle fibber strength were significantly (p <0,05) affected by muscle type.
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Vyhodnocení reprodukce a mléčné užitkovosti v konvenčním a ekologickém chovu dojnic
Širůčková, Karolína
In this thesis the evaluation of selected reproductive and performance parameters in conventional and organic breeding of Czech fleckvieh cattle was solved. The herd of breeding cows from AZOS, Ltd. Zakřany farm was chosen as the conventional farm and Ekofarma Branná was chosen as the organic farm. The research found, that the age of heifers at their first calving was significantly higher in the organic farm (43 x 26 months). The length of the intercalving period was higher in the conventional farm (387 x 338 days). Much more difficult births occurred in the conventional farm. The type of farming also had a great influence on the milk yield, which was much higher in the conventional farm (32 x 12 kg of milk), as well as higher protein content (3.59 x 3.22 %), lactose content (4.92 x 4.68 %) and non-fatty solids (9.21 x 8.63 %). The organic farm had higher average fat content (4.04 x 3.77 %), fatty acid level (1.05 x 0.59 nmol/100g fat) and somatic cell count (261 x 175 K/ml). In contrary, there was no evidence of an effect of the breeding method on the following parameters: number and sex of calves born, calving ratio of cows and heifers, proportion of multiple births and stillbirths, urea, casein, citric acid, acetone and ketone content.
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Specifika reprodukce koní
Maňasová, Michaela
The bachelor thesis deals with the issue of specifics in the breeding and reproduction of horses. The theoretical part firstly describes genital organs of mares as well as stallions and the differences from other species of livestock. Next the thesis characterizes mare’s sexual cycle and methods of horse reproduction regarding their advantages and disadvantages. The next section of the theoretical part gives attention to specifics of the whole reproductive cycle and its comparison to other livestock. And the final part of the theoretical part provides the options for affecting the mare’s sexual cycle. The practical part covers the evaluation of reproductive traits of horse breeding in Hřebčín Vlachovice between 2015 – 2018 period. During these reproduction seasons, there were two stallions – Age of Jape and Ray of Light. It is looked on indicators as the amount of covered and pregnant broodmares, fertility of stallions, effectivity of mare’s getting pregnant or mare’s ability to get pregnant after having a foal. As the last but not least factor watched in the thesis is using hormonal products at mares.
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Management chovu ovcí plemene suffolk v malochovu
Buchtová, Nikola
The aim of the bachelor thesis is to describe the management of Suffolk sheep breeding in small-scale farming. The thesis describes all the essentials that are associated with sheep breeding on your own farm. It includes, first of all, the issue of reproduction, but also nutrition. The thesis includes practical results of reproductive indicators that were collected on a selected farm in the town of Šumperk from 2016 to 2022. The results concern the evaluation of reproductive indicators of the monitored breeding in ewes, where different success rates in pregnant stallions were recorded in individual years. Attention is also paid to the evaluation of reproductive indicators of the monitored breeding in rams, where a stagnant situation in the success rate of pregnancy from 2016 to 2020 was found. A slight downward trend was then observed. Subsequently, the reproductive indicators of the breed were evaluated, where the numbers of births, lambs reared and the number of losses were compared. Results vary from year to year.
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Reprodukční a užitkové vlastnosti dojnic
Leznová, Sára
The aim of the bachelor thesis was to evaluate the reproductive and useful properties of dairy cows. The work deals with the comparison of performance parameters and reprodu-ctive properties of milked cattle. The first part summarizes the basic reproductive indica-tors. The next part of the thesis discusses milk and its content of components and its qua-lity, which is followed by the chapter on milk productivity. The production and consump-tion of milk is evaluated in the work both within the Czech Republic and worldwide. In the practical part, the following reproductive indicators were evaluated: Insemination in-terval, service period, insemination index and intermediate period. The level of selected reproductive and utility indicators was analyzed for individual groups of dairy cows ac-cording to the season in one year.
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Analýza užitkových parametrů prasat ve vybraném chovu
Klváček, Pavel
The thesis focuses on analyzing the production and reproduction parameters in pig breeding in Ochoz u Konice. The theoretical part of the thesis includes research on pig reproductive indicators such as fertility and lactation, followed by production indicators, which include growth, feed efficiency, and slaughter value. Furthermore, the issues related to rearing of gilts and their inclusion in breeding are described. The thesis also briefly describes the reproductive cycle of sows, from insemination to piglet rearing. Subsequently, the methodology for monitoring pig performance in the Czech Republic is described. The last part of the literary review characterizes the individual genotypes of Topigs Norsvin pigs. The practical part of the thesis presents the material and methodology of testing. Reproductive and production utility were tested among Topigs Norsvin pig genotypes. The A-line, AxZ, and TN60 genotypes were studied. The influence of parity on reproductive utility and the influence of sex on production utility were also observed. The monitored reproductive parameters included the number of all piglets, live and kept piglets in the litter, as well as the number of stillborn and dead piglets and the percentage of stillborn and dead piglets in the litter. The average daily gain during weaning, pre-fattening, and fattening of pigs was also determined. The results of reproduction indicated that the highest number of all, live, and kept piglets was achieved by the TN60 sow, while the A-line sow had the lowest number. Regarding parity, it was found that the number of all, live, and kept piglets increased with increasing parity of sows, with the lowest number at the first parity and the highest at the fifth parity. The results of production showed that the highest average daily gain was in TN60 pigs, and the lowest was in A-line pigs. In terms of sex, boars achieved higher average daily gain than gilts in all tested genotypes. The TN60 pigs achieved better results in both reproductive and production utility than A-line pigs, confirming the positive operation of hybridization.
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