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Měření vybraných kvalitativních parametrů mléka při dojení skotu
KAŠPAR, Roman
o ensure the quality of milked milk, it is necessary to strictly follow hygienic proce dures both during its acquisition and during treatment and storage. The diploma thesis is focused on monitoring the quality of milk in correlation with the early detection of dairy cow disease using modern technologies. The literature section introduces the general issues of milk quality. The methodology includes a comparison of the accuracy of different methods for detecting milk quality. These methods can be used to identify advanced disease or early onset disease. With early diagnosis, adequate treatment can be started quickly and save money. The highest accuracy is the results from the per formance control (KU), but these laboratory methods are costly and time consuming. The second measurement was performed using optical methods using the portable de vice Ekomilk Horizon. This method is inexpensive, but less accurate than others. The third measurement was using a milking parlor robot. This method is accurate, the pur chase price is high, but the operating cost is no longer so expensive.
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Hodnocení účinnosti systému řízení reprodukce dojnic
DURČANSKÁ, Michaela
This thesis focuses on the evaluation of various reproduction management systems applied in herds of highly-efficient dairy cows. The theoretical part describes the importance of fertility in terms of the profitability of breeding, the evaluation of fertility indicators and reproduction management systems, including managers programs for herd management. The practical part describes the records of reproduction indicators from four herds with different reproduction management and a comparison of the selected indicators for the year 2022.
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Složení krmné dávky a vliv na produkci a reprodukci dojnic
MALECHA, Matyáš
This thesis deals with the issue of proper nutrition of dairy cows and its effect on milk production and reproduction. It includes an introduction to cattle breeding, milk yield, digestion and the main reproductive parameters. High dairy cow production and successful reproduction are positively reflected in the economics of each dairy farm. The ration dynamics will be monitored during the progressive inclusion of roughages in the different phases of nutrition and also on the reproductive indicators in the farm under study.
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Výživa dojnic v tranzitním období
HAVLÍČEK, David
The bachelor thesis Nutrition of dairy cows in the transition period deals with the nutrition of dairy cows in the peripartum period with emphasis on the prevention of metabolic disorders. The basic feeds used for the nutrition of dairy cows are described from a single-souled perspective. Characteristics of essential nutrients. Phasic nutrition and metabolic disorders caused by poor nutrition. The actual work was based on information obtained from five farms. Information was obtained on feed ration, housing method, feeding technique and incidence of metabolic disorders. From the information obtained, it can be said that most of the selected farms choose the right methods and practices in feeding dairy cows in transit. However, deficiencies were found in two holdings based on a lack of knowledge of the nutrient composition of the feed and in one case an unbalanced ration. There are no serious problems related to metabolic disorders in any of the selected holdings.
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Vliv vybraných parametrů chovatelského prostředí na tučnost mléka holštýnských dojnic
Stoklas, Josef
The aim of this thesis was to find out what effect the selected breeding parameters have on the milk fat content of dairy cows. The experiment took place troughout the whole year (from November 2018 to November 2019). Observations were conducted once a month. A total of 160 dairy cows were evaulated and all of them were in the stable with loose litter boxes. Dairy cows were compared at the top and at the end of lactation. The basic life manifestations frequencies of dairy cows were evaluated. These life manifestations did not change during the lactation in the monitored groups. As far as life manifestations are concerned then monitored dairy cows were mostly lying (from 60 %) regardless of the lactation stage. When they were lying down they preferred left side of the body, the difference was 0,5 %. Significant differences were found in milk components of the milk. Significant difference was also in fatness, dairy cows at the top of lactation had 3,86 % of fat and dairy cows at the end of lactation had 4,56 % of fat. The difference was also in the seperated feed. At peak lactation on the upper sieve remained just 4,6 % and at the end remained 18,1 % of feed.
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Vybrané vlivy na mléčnou užitkovost dojnic
MICHÁLKOVÁ SUDOVÁ, Klára
The diploma thesis deals with the evaluation of selected effects on the milk yield of dairy cows of the monitored herd of Holstein cattle. Evaluation and data collection It took place in the Miller farm in Svrkyně. The performance control data were subsequently processed and statistically evaluated.
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Detekce onemocnění paznehtů dojnic pomocí infračervené termografie
KLÍMA, Denis
The diploma thesis is focused on the use of modern technologies, specifically infrared thermography in dairy farming. The work primarily focuses on the detection of hoof diseases of dairy cows, their early diagnosis and the initiation of adequate treatment. The methodology evaluates the potential and usefulness of infrared thermography as a noninvasive tool for rapid examination of the most common diseases of dairy cows, especially in the hoof area. Also the work primarily focuses on digital dermatitis, which is the most extensive in this area. The weakness of cattle, especially dairy cows, is a worldwide problem and lameness is one of the most common causes of dairy cows being weaned. Hoof problems and diseases have a negative impact on animal health and welfare, which can affect farms. Prevention and early diagnosis of lameness should prevent the development of the disease and the consequent high costs of treatment. The literature section describes the most common causes of infectious and noninfectious diseases, prevention and diagnosis by infrared thermography (thermal imaging). Susceptibility to the disease is primarily affected by the quality of the horn. The quality of the horn is affected by internal and external conditions, such as hygiene, nutrition, hormonal changes during calving and lactation, the age of the animal or genetic predisposition. The next part of this review summarizes the basic principles and possibilities of using infrared thermography in the early detection of disease in dairy cows.
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Optimalizace výživy a krmení v chovu dojeného skotu
ŠENKYPL, Petr
This master thesis focuses on factors affecting the quality of the diet in dairy cows and its relation with milk production. On the analysed farm breeding Holstein cattle, the feed rations are evaluated in terms of diet composition and optimal supply of energy and nutrients for milk production. The diet composition during the followed period and its optimisation, diet analyses and metabolic tests of the cattle are evaluated in this work.
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Analýza vztahu mezi onemocněním paznehtů a mléčnou užitkovostí dojnic českého strakatého skotu ve vybraném chovu
BUREŠOVÁ, Michaela
The content of this diploma thesis was the analysis of dairy cows' limb disorder in the relationship with milk yield, finding the cause of the disorder origin and possi-bilities of its treatment. In the watched breeding there were evaluated 167 dairy cows of Czech Simmen-tal cattle suffering acute disease of cloven hooves. The analysis in the enterprise las-ted from January to September 2020. Within eight curative cycles takes place a treatment of limping dairy cows' cloven hooves. Monitored parameters were milk yield (kg of milk), content of protein (%), fat (%) and somatic cells. With increasing limping of dairy cows comes to a decrease in milk yield up to 5 kg milk per a dairy cow and a day. The most frequent disease of cloven hooves was abscess (47%). The second most frequent disease was dermatitis (30%). To other diseases belongs necrobacillosis, laminitis, cleft and mechanical injury of dairy cow limbs. The most afflicted were hind limbs (82%). As a consequence of disease of cloven hooves were removed 2 % of dairy cows.
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Analysis of milk yield in a selected herd of dairy cattle
PAVLÍKOVÁ, Gabriela
The aim of this work was to prepare a literature review of the milk yield of dairy cows and especially about the indicators and main factors that affect it. In the practical part, the aim was to evaluate the milk yield in a selected herd of dairy cattle and to draw conclusions and recommendations from the results.
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