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Analýza reprodukčních ukazatelů plemene limousine ve vybraném chovu
Neubauerová, Ester
The aim of the bachelor thesis was to evaluate the reproductive indicators of the limousine breed in the selected breeding. For this purpose, monitoring and data collection was carried out in the period of 2021 and 2022. Subsequently, an analysis of selected reproductive indicators was carried out, which mainly included the percentage of conception (%), gross and net birth natality (%). Using the results, it was possible to evaluate the fertilization ability of breeding bulls that were used as part of natural breeding in breeding. In each year, all cows were divided into 3 herds and a breeding bull was then placed in each herd. As part of the monitoring, a lower percentage of pregnancy on average was found in a specific breeding for all monitored cows, namely in 2021 and 2022 (77.8% and 55.3%). This lower conception rate also resulted in a lower percentage of gross and net birth natality (74.1% and 51.8%). However, when looking at specific herds, significant differences can be seen with regard to the breeding bull used. As for the gender representation of calves born, in both years bulls prevailed over heifers.
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Zhodnocení chovu plemene Wagyu v podmínkách konkrétního chovu v ČR
Hortová, Sára
The Bachelor thesis is devoted to a comprehensive evaluation of Wagyu meat breeding on Horky farm, as it is a very rare product in the Czech agriculture. In the first part of the thesis, I focus on the overall evaluation of the breeding using meat performance indicators, namely: carcass yield, average daily gain, JUT weight, pre-slaughter weight, weight differences among 120, 210 and 365 days and reproductive traits, which are processed using mathematical and statistical methods in the period 2016-2019. In the second part, I focus on the economic evaluation of the farm during the period 2019-2022, in which the SWOT analysis method was used, followed by an evaluation of the cost and revenue structure of the farm. Lastly, an analysis of ratio indicators, i.e. profitability, activity, indebtedness and liquidity, was made. The calculated values show that the farm is loss-making in 3 out of 4 years due to the high costs, long fattening period and lower reproduction.
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Hodnocení růstové schopnosti telat plemene hereford ve vybraných stádech masného skotu
BARTŮŇKOVÁ, Lenka
The thesis assesses the factors of growth ability of calves in herds of Hereford beef cattle. Herds of six separate breeders were evaluated throughout the years between 2018 and 2021. The total of 1393 purebred calves were included in the assessment. The data was sorted by sex, year and month of birth of the calves, the father of calves and birth order of the mother. The subject of the observation were weights of the calves at birth and at 120, 210 and 365 days.
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Use of insemination in beef cattle herds
JANIŠ, Marek
This bachelor thesis deals with the evaluation of the use of insemination in a selected herd of beef cattle. The thesis is divided into two parts, theoretical and practical. The theoretical part of the bachelor thesis characterizes the concepts related to the topic.It describes the anatomy and physiology of the cow, insemination and methods, genomics and current and future trends in the field of insemination. The practical part interprets and evaluates the results of the analysis, which are based on the cow's passport cards and the record of the performance check.
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Růstové schopnosti plemene limousine ve vybraném chovu
KAČÍREK, Pavel
The aim of the bachelor thesis was to monitor and evaluate the growth performance on a family farm in Nový Kostelec. The growth performance evaluation was carried out on a total of 56 Limousin breeding animals. Weighing of each animal was performed at 120, 210 and 365 days of age. When evaluating the growth ability of the bulls, it was found that the highest growth performance of the bulls in the period from birth to 120 days was achieved in 2021, when the average weight of the bulls was 200,36 kg and the average daily gain for the period was 1,286 kg, while the best growth performance in the period from 120 to 210 days was achieved in 2022, when the average weight of the bulls at 210 days was 330,84 kg and the average daily gain since birth was 1,464 kg, in the period from 210 to 365 days the best growth performance of the bulls was achieved in 2022 when the average weight of the bulls was 524,08 kg and the average daily gain for the period was 1,218 kg. The highest average daily gain of bulls since birth was found in 2022 when it was 1,278 kg. In evaluating the growth performance of heifers, it was found that the highest growth performance in the period from birth to 120 days of age was achieved, in 2021, when the average weight was 168,57 kg and the average daily gain for the period was 1,033 kg, while the best growth performance in the period from 120 to 210 days of age was achieved in 2021, when the average weight at 210 days of age was 292 kg and the average daily gain over the period was 1,366 kg, and in the period from 210 days to 365 days of age the best growth performance was found in 2021 when the average weight of the heifers was 420,16 kg and the average daily gain over the period was 0,830 kg. The highest average daily gain from birth for heifers was obtained in 2021 when it reached 1,057 kg.
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Minerální látky ve výživě masného skotu charolais
BÍCOVÁ, Pavla
The thesis deals with the significance of minerals in nutrition of charolais beef cattle. We classify minerals as additives, and they are very important in the nutrition of cattle. They are divided into macronutrients and micronutrients. Their deficit can have negative consequences for fetal development, juvenile growth but also for adults. Nowadays, pastures and forages do not provide enough minerals. It is necessary to supplement them with suitable feed ration and control their amounts in the body. The first part of the thesis focuses on the characteristics of beef cattle. The charolais breed belongs to the most efficient beef cattle but also one of the breeds which are demanding on nutrition. In the second of the thesis, the morphology of the digestive system and its function is described. In the last part, the individual minerals and their application to feed rations of individual categories of cattle are characterized. It is important to deal with the mineral nutrition from the last third of pregnancy, when the nutrition affects the unborn calf the most and has influence on the state of minerals even after its birth. The most common way to supplement minerals at farms is by mineral licks or mineral premixes. The most suitable is to supplement organic minerals, which are more absorbable for the organism than the inorganic ones.
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Influence of minerals on health status and reproduction of cattle without marketable milk production
DVOŘÁKOVÁ, Markéta
Minerals in beef cattle nutrition are very important for the health of cows, their conception and also for their calves and colostrum, which is very important to them. The aim of the work was to evaluate the health status and reproductive indicators in terms of the content of minerals in the blood of BTPM cows. The literature review describes the digestive system of cattle, characterizes beef cattle and especially meat simental, in which the experiment took place. I also describe the nutrition of cattle, blood composition and hematological parameters of blood. A total of 3 samples were taken every 3 weeks. In each sample, 12 blood samples were taken from cows aged 20-30 months with a live weight of 600-750 kg. Overall, most values were within the usual ranges. By maintaining the same feed ration and adding a mineral lysis with increased selenium content, the cows could get better and some mineral values would improve.
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Růstová schopnost telat masného skotu
HOFMANNOVÁ, Natálie
Abstract In recent years, the number of cows kept in the system without market milk production has been increasing in the Czech Republic, especially at the expense of the number of dairy cattle. At present, approximately 226,000 BTPM cows are bred in the Czech Republic. The main economic indicator of beef cow breeding is the number of reared calves per 100 cows and their achieved live weight. The aim of the work was to prepare a literature review including the characteristics of aubrac and shorthorn breeds, performance characteristics and the main influences affecting the performance and fertility of stallions. Another goal was to evaluate the growth ability of calves in two monitored herds of beef cattle. The monitoring took place on farms that operate in the mode of organic farming. A total of 66 calves were monitored. Data on sex, date of birth, origin and weight of calves (aged 120, 210 and 365 days) were obtained from records of control of performance of beef cattle breeds and farm records. Birth weight was determined by a qualified estimate of the breeder (according to the breeding standard and the experience of breeders). The data were processed in MS Excel and Statistica 12 into tables and graphs. When comparing the weight of both breeds at the age of 120 days, the weight is slightly higher in the observed herd of the Shorthorn breed, compared to the Aubrac breed. At the age of 210 days, the average weight achieved is also higher in the shorthorn breed, which partially affects the individual's own performance and feed quality. At 365 days of age, the aubrac bulls had a greater difference in weight than the shorthorn bulls. When comparing the weight of heifers in both breeds at the age of 120 and 210 days, the weights are almost balanced. The Shorthorn breed achieved the highest increments from birth to control weighings. The monitored herd of the aubrac breed reached a slightly lower average weight in comparison with the population of the aubrac breed in the Czech Republic. When comparing the monitored herd of the shorthorn breed and the population of the shorthorn breed in the Czech Republic, the monitored herd achieved balanced results. The monitored herds achieved very similar results, so it cannot be said with certainty that one breed was better than the other.
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Význam vitaminů a minerálních látek ve výživě býků plemene masný simentál
DVOŘÁKOVÁ, Markéta
My bachelor thesis deals with the significance of vitamins and minerals, which belong to the food additives. Additives are very important for the proper functioning of the organism. A lack of these substances in the nutrition worsens the overall health and causes metabolic disorders. It is necessary to maintain sufficient additives and the right proportion of minerals in nutrition. In the first part I describe the morphology of the digestive systém of cattle and the function of its individual parts. In the second part I characterize beef cattle and their fattening. In the last part I deal with the nutrition of beef cattle, the division of vitamins into fat soluble and water soluble. I describe individual minerals, which are divided into macroelements, microelements and trace elements. In conclusion, I present my opinion on the importance of additives in the nutrition of beef cattle.
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Vybrané vlivy na růst telat masného skotu
TOMKOVÁ, Michaela
The aim of this work was to analyze selected effects on the growth of calves of a selected herd of aberdeen angus cattle in Mýto farm in Hořice na Šumavě for the monitored period of 6 years (2012 - 2017). A total of 242 pure-bred calves of the aberdeen angus breed born during the reference period was included in the evaluation. Birth weight, weight at 120, 210 and 365 days were determined in calves. Subsequently, the group of calves was sorted by sex, year of birth, month of birth, birth order, father's individuality and mother's exterior. The data were statistically processed in Microsoft Excel and evaluated in Statsoft Statistica. When confronted with the national average published in the KUMP deadlines, the observed calves always had a lower birth weight, but higher weight at 120, 210 and 365 days. When evaluating the effect of the year of birth on calf growth, it was found that calves born in 2012 and 2013 achieved the best results. The best months for calving aberdeen angus breeds on the monitored breed were February to April. In terms of birth order, calves born to cows after the third calving achieved the best results. The worst results were achieved by calves from heifers and cows after the ninth calving. The best breeding-bull in breed regarding to the growth ability of calves was the sire ZAA 916. The PAA 027 sire showed the best results in terms of ease of delivery. There was no significant difference in the effect of maternal exterior on the growth ability of calves.
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