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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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The Influence of milking frequency on milk efficiency and fertility in breeding cows, milked by the help of automatic milking systems
KOZELKOVÁ, Jitka
The aim of this thesis was to analyze the effect of milking frequency per day on milk efficiency and fertility during the course of lactation. The observation of dairy Holstein cattle herd took place in agricultural company Brloh (Blanský les Region) from January 2010 to February 2011. There were observed 55 dairy cows: Holstein cattle (75 %), share cross cows with race Czech Pied cattle (22 %) and Fleckvieh cattle (3%). Microsoft Excel has been used for processing the statistic data. For results evaluation, some basic statistic characteristics have been counted. Differences between the groups have been verified by the simple factor analysis of variance. By evaluation of milk efficiency including milk constituents for standardized lactation on individual lactation phases, reached breeding cows on first lactation 9460.00 kg M (3.22 % B and 3.88 % T), on second lactation 10632.15 kg M (3.23 % B and 3.96 % T) and breeding cows on third and next lactation 9738.60 kg M (3.18 % B a 4.08 % T). In the assessment of milking frequency visited breeding cows the AMS on the first lactation at 1/3 lactation phases 2.51 per a day, breeding cows at 2/3 lactation phases 2.72 per a day and 2.70 per a day at 3/3 lactation phases. This trend continued in next lactation, but breeding cows on the second lactation at 3/3 lactation phases visited most often robotic milking machine 2.80 per a day. Relationship between the number of milking and milk efficiency was found statistical significance. With the increasing number of milking performance also increases. By evaluation reproductive parameters the following values were observed ? the average first calving age 774.9 days (25 months), the average meantime 382.3 days, the average servis period 110.4 days and the average insemination period 77.8 days. The relationship between the number milking and service period has been established by the positive correlation, i.e. to the growing number of milking is to the extension service period.
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INFLUENCE OF BREEDING TECHNOLOGY ON THE PRODUCTION CHARACTERISTICS OF CATTLE FIRST-CALVERS
VOBINUŠKOVÁ, Zlata
The comparison of the results of milk yield and fertility of first-calvers of Bohemian Spotted Cattle is the main aim of my thesis. Monitored cows (on the 1. lactation) were bred in different conditions (in the stanchion and free housing systems) and then housed in stanchion and free stalls production livestock barn. Comparison was made in the agricultural co-operative in Černovice u Tábora, which farms in the Region Pelhřimov district. Monitoring was carried out in 2009.
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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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Effect of intrauterine autoplasma application on mare fertility
ŠTĚRBOVÁ, Hana
The objective of this study was to evaluate the effect of intrauterine plasma infusion on conceiving rate in selected group of mares during the breeding seasons 2008 and 2009. The fresh sperm insemination was followed by the infusion of self-plasma and subsequently the successivity of the insemination was compared with the control group of mares. Next, there were observed following factors which could influence the effectiveness of conceiving: age of the mares, number of insemination doses, size and location of preovulating follicle, month of the year. There was also evaluated the difference between multiparous (with one and more births) and nulliparous mares. The statistical analyses were proceeded by the use of contingency tables and the one-factorial analysis of variance (ANOVA). Next, the regression and correlation analyses were used. All the statistical procedures were performed with the use of statistical software STATGRAPHICS Plus 5.0. The results showed that there were the same results in observing of both number of insemination doses and fertile heats evaluation. There was found no significant effect of plasma infusion on the conceiving rate. In the model with the effects of plasma infusion and the age of the mare there were found statistically significant differences. It means that the effect of plasma infusion on conceiving rate was confirmed in the mares of the age up to 14 years. The result of the following analysis is the non-significant difference in conceiving rate between the groups of multiparous mares with or without plasma infusion.
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The impact saturation feed ration of vitamine C on weight, health and reproduction on a selected brand of animals
TEJML, Petr
The aim of this study is to investigate the impact of vitamine C on weight, health and reproduction on a selected brand of rodents. The model animal was selected the guinea pig (Cavia aperea v. porcellus) whose sensitivity on the lack of vitamine C in food is well known. The guinea pig is not able to create vitamine C in its body like the man and its only possible posuply is in food. Vitamine C is characterised by a wide range of effect and its lack in the organism causes considerable ailments. The guinea pigs in the investigated breed were divided into several groups of similar constitution. Four groups were provided food containing added vitamin C, other four groups depended only on vitamin C present in food available in the season. The monitoring was carried out in 2005 and 2007. The weight of the guinea pigs was checked out every three days. The weigh, health and reproductive indexes were monitored during the whole experiment. According to the acquired results it is possible to affirm the importance of vitamin C in the life of guinea pigs. Guinea pigs that are not able to synthesise vitamine C by themselves are fully dependent on its supply in food. Consequently, in case of an insufficient amount of vitamine C in the food ration of a guinea pig is essential its subsequent addition. There are not many pieces of knowledge and written technical sources dealing with the breed of the guinea pig, therefore this study might represent an asset to the breeders and research.
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Cause of selection and longevity of freely stabled cows
VOCHOZKOVÁ, Šárka
Longevity of cows in a large scale production technology affects the drove turnover and raising economy. Another important elements in a good raising economy are reproduction and performance. The goal of the research was to find out the health conditions of cows, their reproduction and longevity. The research took place in ZOD Kolný. Milk efficiency, reproduction, health condition and selection of animals were monitored on 330 cows from race Holštýn and Česká straka in 2006-2007. Obtained data have been processed by variance analysis and correlation analysis in Microsoft Excel programme. Dairycows were stabled in a free box stable. The basic feed ration was canned roughage with a pithy supplement. We have observed teh health condition of dairycows, causes of setting cows aside, longevity, servis period, between-calving interval and efficiency. The average data were compared in the light of lactation lactation. Obtained data were also compared with records from the Czech republic. The research has found out that in a dairycow drove with average efficiency 7 584,5 kg there have been 3583 veterinary interventions executed on 270 monitored cows, but 3322 from that have been interventions related to reproduction failures. The whole number of dairycows set aside while researching was 142. The main causes of settin cows aside were the reproduction failures(13,03%) and the lacteal gland inflamations (7,8%). The age analysis has shown that only 24,2% of cows are on 4th and higher lactation. Most cows are on the 2nd lactation (100 heads). There we could see the heads descent ply down to the 8th lactation, were there are only 3 dams. The average servis period was 167,03 days. There were over 85% of dairycows with unsatisfactory servis period (over 75 days). 58,14% of dairycows got over 120 day limit. These data in comparison with the whole czech rate, where the servis period is 125,8 days, show the servis period 41,5 days longer. The average interval lenght was 42,7 days, which is 17,3 days longer than the republic average in 2006. Economical deprivation caused by the servis period prolongation were 3921,26 Kč per cow. Altough the profit with 104 Kč spending on one day was along with average milk yield 7 548,50 Kč 39 789,55 Kč per caw per year. So if a cow with an average milk eficiency (consodering it´s lactation) would live until the 7th lactation, it will earn 289 323,30 Kč in it´s whole life.
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Analysis of the chosen effects affecting dairy cow´s reproduction
PROKŮPEK, Petr
Cow{\crq}s dairy reproduction and it{\crq}s level of efficiency are main topics of interest of our breeders. Constant downward trend of important reproduction indicators, often reaching critical values, is becoming main problem of many agricultural plants aligned to beef-raising. The higher attention to beef-raising is needed especially in the foothill areas and in regions with harder conditions (LFA areas). Beef-raising is not aimed to fulfil only a production, it also stands for unsubstituable reproduction functions. The aim of this thesis is to evaluate reproduction indicators in three different breedings in the five year range 2002-2006 (such as insemination interval, intersemination interval, servis cycle, insemination index, parturition interval and pregnancy percentage after first insemination) on the chosen dairycows. According the level the individual breedings were compared (Rychnov nad Malsi, Vlci Jamy, Tesov) testing the CESTR runt. In Rychnov nad Malsi, where the runt CESTR and HOLSTYN are breeded, the differences between these runt{\crq}s reproduction indicators were evaluated. The level of milk efficiency, the methods of beef-raising, month of calving and order of lactation were taken into account. The length of SP is unsatisfactory in all breedings. The average SP in the whole period under observation were in Rychnov nad Malsi 125,2 days (CESTR), in Vlci Jamy 123,5 days and in Tesov 125,7 days. Average length of parturition interval in the whole period of observation were in Rychnov nad Malsi 402 days, in Vlci Jamy 418 days and in Tesov 415 days. Also the very low percentage of in-calfing after first insemination was discovered in Rychnov nad Malsi and in Tesov (under 40%). It wasn{\crq}t proved the significant influence of the month of the cow{\crq}s calving and the influence of pasture to the length of period. The HOLSTYN breed proved that it is able to produce more milk under the same conditions, despite the fact that its achieved efficinecy of the milk production is average in Czech Republic, more over it shows worse results in reproduction (except insemination interval) compared to czech{\crq}s spotted cattle. Based on the count of calving per lifetime of cow it was proved the positive influence of grazing catlle on the longevity of cows compared to Czech republic{\crq}s average. Observed indicators of milk efficiency and cow{\crq}s reproduction system are in observed breedings significantly affected by breed, the level of sustenance and dairycow{\crq}s management.
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Breeder and economic evaluation of beef cattle rearing
ZRŮBKOVÁ, Ludmila
This dissertation deals with the issue of breeding and economic evaluation of beef cattle within the company 'Zemědělské družstvo Krásná Hora nad Vltavou a.s.' between 2009 and 2010. The goal of this work is to evaluate the breeding standard of Blonde d' Aquitaine livestock breed in the above-mentioned company's breeding barns in Vysoký Chlumec, Obděnice, Skrýšov, Hojšín and Narysov. The results show that the profitability of beef cattle breeding is possible only on condition of subsidies and significant wages and overhead costs lowering.
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