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The breeding of dairymaid from the viewpoint of noise burden
KAŠPAR, Michal
This thesis deals with the measuring noise and its impact on the breeding of dairymaid. The theoretical part collect general information about sound, noise and ear anatomy. It also deals with listing the most common sources of noise, instruments of noise protection, the impact of noise on health and interpretation of the rules, regulations, regulations and laws. The practical part contains the results of measurements in selected locations, their processing into graphs and evaluation.
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Influence of different factors for economic parameters of milk production
KLEINOVÁ, Anna
Evaluation of factors, which affect the selected economic indicators of milk production in specific farm, during two years, 2007 and 2008, was the aim of the work. The composition of dietary and its optimalization and feeding technology in stable were evaluated. The contents of basic elements, which affected the realization in every month, were set from the milk production on the basis of analyses. Indicators of reproduction are mentioned then. Evaluation of chosen operational economic indicators of milk production was based on dates about costs and revenues in selected stable. Mixed feeding ration is loaded twice a day and it is compiled in advisory way according to the laboratory analysis results of feed. It was balanced with a moderate abundance of nitrogen substances and solids in production cows and with a deficit of solids in feeding ration of very pregnant non-lactating cows in both years (about 9 %). The fat and protein contents were relatively fixed, with a decline in summer months. The limit for somatic cells was exceeded once (by 3 %) and so the TVC (by 36%) in 2008. Reproduction indicators showed annual improvement with the exception of the intervening period length. There came to reduction in number of coves on the 3rd and later lactations and to decrease of their longevity thus. Their own and purchased feed took share in costs mostly (33,3% in total). In 2007 the loss per litter of sold milk arose but the income moved to positive values after including all revenues. In 2008 a profit per litter of sold mild was reached the milk production reached 3,64% and the total income increased.
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Analysis of Czech pied cattle milk performance and fertility.
NÁVARA VOLFOVÁ, Kateřina
The main goal of all milk cattle breeders is herd making profit {--} the herd with good reproduction and consequent high production performance. Such a goal can only be reached if the herd is of quality genetic base. Cow{\crq}s milk performance is one of important factors influencing final economic results of milk production. The aim of this Diploma work was to examine lactation course and level as well as reproduction of high-performance Czech pied diary cows with regards to their genetic base. The diary cows (190 pieces) on lactation within 27th March 2008 {--} 13th June 2008 were examined. The examined cows were divided into three groups based on number of their lactation. These groups with cows on 1st, 2nd, 3rd lactation were further divided with regards to their genetic base into herd groups registered as C1 and C2. The sub-herd group C100 was isolated from C1 herd group. To each lactation group, 2{--}3 bulls were assigned based on the highest number of daughters in specific lactation group. Minimum criterion for bull assignment to lactation group was set on at least 5 daughters in the group. Reproduction performance was examined in these groups. The milk performance was evaluated based on 305 days usage, lactation curve persistence index and the lactation curve course in individual groups. The herd-group C2 with highest genetic base of diary breed proved the best results in all lactation groups with regards to reproductive performance. The best results were reached on 3rd lactation. The link between genetic base and reproduction performance of Czech pied cattle was not proved. Neither the link between genetic base and milk performance was proved. The influence of lactation number on most of examined factors was proved. The father{\crq}s influence on reproduction or milk performance was not clearly proved. However, the results may be distorted for lack of diary cows in groups examined under this criterion. Finally, the direct link between reproductive and milk performance was also not clearly proved. To summarize our results, we can state that the diary cows in examined herd were above the milk performance average of Czech pied cattle bred in Czech Republic. At the same time, the reproduction performance was just on average of Czech Republic.
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Detectionand assessment of noise loading during milking at milking shed.
KŮRKA, Jan
The work deals with the measurement of noise exposure on milking Alfa Laval revoling HBR, Agromilk Pelhřimov dovetail - trigon and milking robot Lely Astronaut A3. When measuring , it was found that the best in terms of noise level measurements published in milking robots with the runing of the feed wagon and measuring worst inside the cell with the milking robots.
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Comparing the impact of housing and milking technologies on selected indicators of performance and quality of milk
POLÁKOVÁ, Radka
The theme of this thesis is to compare free housing with a milking robot, milking of serious housing in the pipeline. The evaluation is focused on milk yield and its quality, reproductive performance and health. It is also monitored by the free choice of milking cows during the day. Consideration is also observed in stable microclimate. Everything is assessed under operational conditions. Object of study is a refurbished barn, where both systems are in operation. Were measured and compared observed values of milk production, reproduction and health status between groups. The observed values were evaluated in the program Statistica 9th of a computerized milking robot system was speciaed the period of time when Nada dairy milk provides the most of milk through a robot.. In the area of dairy cattle milking robot reaches a higher milk yield and increasing the percentage of lactose recovery. Milking stalls of the pipeline has better results in the percentage of protein recovery. The choice of time period of milking cows, the most milk by dairy cows wasprovided between 10:00-18:00 pm. In the area of reproduction achieved better results with loose housing milking robot. The issue of health status showed a statistically better health outcomes for the free housing with a milking robot.
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Monitoring of noise nuisance in the house for livestock breeding cows.
SVOBODA, Richard
This thesis with theme "Monitoring of noise nuisance in the house for livestock breeding cows'' is designed to evaluate the noise pollution of animals, noise pollution of service of milking equipment and noise pollution which acts on surroundings of barn and milking parlor. Results are compiled in tables and graphs and equivalent noise level is determined by a formula . Equivalent noise level is compared with the legislative and hygiene standards. In case of exceeding the standards are designed solutions
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Analysis of selected effects on milk production and fertility in the Czech Pied cattle herd
HORA, Ondřej
The fertility and milk yield are many factors. Generally, these factors can be divided into external and internal. Regarding external factors, including, for example, nutrition, the level of breeding, breeding technology, mobility and the human factor. The most important internal factor is the individual's genetic makeup, heritability and breeding value of parents. The aim was to assess the level of milk production and reproduction of selected Czech Pied cattle herd. The data were evaluated in 3 of lactation in the period 2007-2010. Follow-up was a group of Czech Pied dairy cattle on 190 pieces. File cows were divided according to lactation, the cows at 1, 2 and 3.laktacions. The reference group of cows were subdivided according to the genetic contribution to C1 and C2. The C1 were still separated dairy herd subgroups C100. Furthermore, the observed group of dairy cows as a separate group of fathers. Chosen were 3 bulls whose daughters were in the study group, the highest proportion, the threshold was set at 15 daughters. In the monitored group did not demonstrate the influence of breeding value of the fathers of the fathers upon the subsequent performance of daughters. These results may be distorted by a small number of daughters in the sample. The highest milk production showed a C2 for all lactations. This group had the highest proportion of genetic dairy breeds. This group had the highest performance at the 3rd lactation (6793.13 kg). Has been shown to influence the genetic contribution to individual reproductive performance. The shortest SP was the first lactation group C100 (120.62 days) and the second interim Lactation is also a group C100 (379.58 days). In group C2 with a higher proportion of dairy breeds (A, R), these values were lower (141.29 days and 426.39 days). The observed results of performance tests show that a group of dairy cows of Czech Pied cattle (C100) has, for the period of below average values of milk yield (6188 kg), compared with average values of milk yield of the Czech Spotted breed in the Czech Republic. Also, reproductive performance observed in animals showed below-average performance in comparison with the average of the Czech Spotted breed in the country. The cows were monitored groups revealed a significant difference in fertility problems. It was found that the most common reason for exclusion breeding cows were fertility disorders (71.9%) and other medical reasons (22.1%). The observed density was the mean longevity. C100 group had an average calving 3.07, then 3.58 C2 calving
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