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Kontrola výživy a metabolismu dojnic v chovu s automatizovaným systémem krmení a dojení
Záboj, Dominik
The aim of the thesis was to evaluate the effect of changing the technology of feed loading (conventional feed wagon loading vs. automated feed loading) on the content of milk components, especially on the concentration of urea as an indicator of feed balance over time. For the analysis of the milk constituent content in relation to ration balance, individual samples from the performance check, pool samples analysed by the dairy and herd averages from the Lely Astronaut A4 milking robot were used, which were collected from 1st January 2021 to 31st December 2022. The results of the study document that the change in feeding technology had neither a positive nor a negative effect on the milk constituent content. Statistical evaluation revealed only a significant difference in the number of somatic cells in milk (p < 0.01). Other evaluated milk composition parameters (protein, fat, lactose, urea) were not significantly affected by the change in feeding technology (p > 0.05). In the correlation test between pool samples and individual samples, statistically significant correlations were found for urea (r = 0.66), fat (r = 0.45) and somatic cell count (r = 0.63) at a significance level of p < 0.05. However, correlation analysis of milk testing results from robotic milking with data from pool samples and individual performance control samples yielded inconsistent data, with a positive correlation found only between the mean somatic cell count from the robotic milking parlor and individual KU samples (r = 0.22). In a set of examinations of individual milk samples from KU (n = 2112), correlation analysis was performed between all determined components. Statistically significant correlations (p < 0.05) were found between protein and fat (r = 0.82), lactose and fat (r = 0.68), somatic cell count and fat (r = 0.13), urea and fat (r = 0.45), lactose and protein (r = 0.80), somatic cell count and protein (r = 0.13), urea and protein (r = 0.47) and for urea and lactose (r = 0.45). It is clear from the results that the results of the analysis of milk from the robotic milking parlour differ from the standard values found in performance monitoring and in the examination of pool milk samples, which thus appear to be more suitable for monitoring nutrition and metabolism.
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Analýza ukazatelů užitkových a funkčních vlastností dojnic po přechodu na robotické dojení
SZMITEK, Daniel
The aim of the diploma thesis was to evaluate the effect of changes in housing and milking technology on the productivity of dairy cows in the Czech Spotted Cattle in the organic farming Farm Otročín in the Karlovy Vary region. Monitoring took place in a commercial dairy farm, where the cows were transferred from the original recon-structed barns with a conventional milking parlor to a new free box barn with milking robots. For the evaluation, records of daily milk yield, visits to milking robots taken by milking robots, records of eating and rumination time detected using transponders with identification on neck collars, which are stored in the relevant SW, were used. Data on the reproduction and treatment of cows were taken from the used zootech-nical records. All data were recorded during the period from 19.12.2023 to 12.3.2023 (12 weeks), when the dairy cows were gradually transferred to a new barn with milk-ing robots.
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Technical aspects of robotic milking
HANKOVEC, Tomáš
The theme of this diploma paper is The technical aspects of robotic milking. This work has been written to provide an overview of the technologies used in robotic milking. In the first part there is a description of the general problems of cattle raising. In subsequent chapters of the work there is a technical description of the selected machine parts used during milking. The next part of this work is made of chapters which deal with the history of robotic milking, introduction of individual manufacturers and technologies used by these producers. Then, these technologies are evaluated in terms of the economic costs of their usage and their technical differences. In the conclusion, there are presented some novelties in the field of robotic milking , coming on the market in the next few years.
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Effect of milking with an automatic milking system on selected incides of cattle welfare
HADAČOVÁ, Veronika
Life comfort of dairy cows is in concern of those breeders who are trying to meet all requirements of welfare and minimizing deficiencies in barns. In terms of welfare an automatized milking is most suitable mean how to reduce most of stress factors in stables. Data for processing results of this work was mined based on own ethological daily basis observations. The observations took place in two independent enterprises with different kind of breed (holstein and czech mottled cattle) between 21. 2. 2013 and 21. 3. 2013. From activity of dairy cows after 30 minutes after releasing from milking robot was found, that especially dairy cows for II. and higher lactation goes to feed immediately after milking. However, comparison of drinking of both groups led to conclusion, that group Holstein drank more often after milking. First-calvers went for a drink from 37% and dairy cows for higher lactation from 36%. Firstcalvers from czech mottled cattle group went for a drink from 30% and dairy cows for higher lactation from 23%. The next part of observation was recumbence after milking. In general 13 cows and from those only 4 first-calver lay down which is very positive finding in terms of health of udder and stress factor by first-calvers. Most of recumbencies was by cows on II and higher lactation of czech mottled cattle group where lay down 7 cows (5 %). Freedom of movement and reducing of stress factors in barn leads to higher comfort of cows and their welfare and milking robot meets requirements. It can be said that using milking robot is best practise for future of milked cattle.
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Use of ethology with technology of milking robot
SCHESTAUBEROVÁ, Markéta
If we require higher yields from dairy cows, we have to provide them with good living conditions. It is necessary to know their natural behaviour and give them a chance to show it. One of the possibilities to make better living conditions to dairy cows seems to be an introduction of the automatic milking system to cowshed. The aim of this diploma thesis is to evaluate basic behaviour of dairy cows during all day in two cowsheds with automatic milking system, and to create a data file of dairy cows in two cowsheds with breeding of two different kinds of cattle - Czech Spotted cattle and Holstein dairy cows, and two different automatic milking systems ? Lely Astronaut and DeLaval. The results were evaluated by particular applicative statistics methods and the differences between the breeds and types of robots were compared. The thesis concerns three ethological observations in 2010 and 2011 which took place in Agricultural Cooperative Kluky near Písek, where Holstein dairy cows is bred and automatic milking system Lely Astronaut is used, and also three ethological observations in 2009 on a family farm in Chlumeček near Křemže, where Czech Spotted cattle is bred and automatic system DeLaval is used. The Holstein dairy cows spent feeding from 3,4 to 3,9 hours per day and Czech Spotted cattle spent feeding from 5,6 to 6,3 hours per day during all observation. In category standing were included: plain standing, standing with other activities (standing ? drinking, standing ? urinating, standing ? defecating, standing ? comfort behavior) and milking in robot. The Holstein dairy cows and Czech Spotted cattle spent standing from 5,6 to 6,3 hours per day. In the category of lying, significant differences were found. The Holstein dairy cows spent lying from 14,1 to 15 hours per day. The Czech Spotted cattle spent lying from 11,6 to 12 hours per day. Last observed category was moving. The Holstein dairy cows spent moving 0,4 hours per day and the Czech Spotted cattle spent moving from 0,9 to 1,1 hours per day. The quantity of milk of Holstein dairy cows per lactation was 6701 kg in average with quantity of protein 229,694 kg with content of 3,375%. The quantity of milk of Czech Spotted cattle was 4690 kg with quantity of protein 159,33 kg. The length of insemination interval of Holstein dairy cows was 71,35 days in average and service period was 159,97 days in average. The length of insemination interval of Czech Spotted cattle was 130,49 days in average and service period was 159,97 days in average. The data was processed with the help of Microsoft Excel and Statistica 10.
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Quality idicators of change in milking technology
VOKŘÁLOVÁ, Simona
The aim of thesis was to analyze quality indicators of raw bulk milk close to change of milking technology. Data were derived from pool samples. The quality indicators are: fat content, protein content, total bacterial count (TBC), somatic cell count (SCC), freezing point, solids-not-fat content, urea and casein content.
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Behavior analysis of the dairy cows with technology of milking robot
SCHESTAUBEROVÁ, Markéta
With the increasing consumption of milk and dairy products the number of dairy cows grew up also. But at the same time the requests on dairy cows were increasing which brought changes in technology and technique of the milking system which would be helpful with milk production, productivity of work and welfare of dairy cows. Milking robots could be a suitable solution. The first robot was installed on a farm in Netherlands in 1992. The aim of the bachelor thesis is to evaluate the basic behavior of Czech Spotted cattle based on analysis of their daily behavior with connection to dairy production and to the number of milking during the lactation. There were three ethological observations realized from June to December 2009 on a private family farm in Chlumeček near Křemže. The whole area of agricultural land is 320ha, out of which 120ha permanent grass and 210ha arable land. On this farm there are 72 dairy cows of Czech Spotted cattle in average, their hybrids and several pieces of Holstein dairy cows. The data were evaluated in the program Microsoft Excel and Statistica 9. The dairy cows gave attention to the feed intake most of all in September and that presents 26.07% of the whole day. It was 23.18% during the first observation in May and for the third observation in December 24.35% of the time. Standing of cows averaged 22.33% and the length of active time reached in average 4.33%. The lying duration of dairy cows were changed minimally during the year. At the first observation the lying period was 49.88%, at the second observation it was 48.25% and at the third observation 48.87% of the time. Quantity of milk per lactation was 4679kg in average; the highest productivity reached the group of dairy cows during the second lactation (4866kg of milk). Quantity of protein was 159.33kg in average with the content of 3.40%. The average number of milking reached 2.86 per day. The length of insemination interval was 103.49 days and service period was 159.97 days.
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