National Repository of Grey Literature 29 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Vyhodnocení ekonomiky výroby mléka na vybraných farmách dojeného skotu v ČR
Bínová, Alice
The thesis characterizes dairy cattle breeding and milk yield of the most represen-ted dairy and mixed breeds in the Czech Republic and also important factors that in-fluence the economics of milk production. In relation to the economic issues in dairy farms, costs and returns are distinguished. The methodology also characterizes two farms, which made it possible to monitor and compare the economic indicators of milk production, to assess the economic efficiency of the farms and the break-even points for 2022. In compiling the total costs and revenues that were monitored per litre, per feeding day and per cow, the total costs for the agricultural cooperative Belcice were found to be 9,018 CZK per litre per year and 230,548 CZK per feeding day per year, while for Farm B these total costs were 7,969 CZK per litre per year and CZK 203,482 per feeding day per year. The highest cost items were feed and bedding costs, which averaged 44.5 % for both farms, labour costs at 16 % and farm overheads at 14 % of total costs. The results show that the two farms are profitable even without subsidies, despite the noticeable differences in costs and milk selling prices between the two farms.
Vliv vazného ustájení na parametry mléčné užitkovosti dojnic ve vybraném chovu
Skoupý, Roman
The aim of this work was to find out the influence of bonded housing on the parameters of milk productivity of dairy cows in a selected farm. The work took place in one calendar year 2022 from January to December. Among the monitored parameters were fat content (%), protein (%), lactose (%), amount of milk produced (kg), stage of lactation (days) and order of lactation (n). The samples were obtained from our own breeding and evaluated in the Laboratory of Applied Lactology at the Institute of Animal Breeding and Breeding, Faculty of Agriculture, Mendel University in Brno using the Julie C5 Automatic device. A total of 12 samples from 4 cows of two breeds, namely Holstein and Czech Spotted cattle, were processed. The results show that bonded housing has a significant effect on the milk production of a dairy cow. The fat content is influenced by the method of breeding but also the feeding technique and the health status of dairy cows, when the fat content was very different in individual months. The protein content was influenced by the order of lactation, where the higher the lactation, the lower the protein content. Lactose was not affected by any factor and was constant.
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.
Reprodukční výkonnost ovcí v ČR
Čudan, František
The aim of this thesis describe how we evaluate fertility and reproduction of sheep in performance testing in Czech republic, include evaluation of new traits of reproduction performance. In evaluation was traits ewe lambing rate, lambs per ewe, lambs per ewe lambing, lambs reared per ewe lambing, as a new trait weighed lambs (all in percents) and additionally lambs growth to one hundred days of life. All reproduction traits and weight of lambs in one hundred days of life have increasing tendency in Czech republic, although they are impacted by year and environment. On the percent of weighed lambs have strongest impact herd production system. The fertility and reproduction performance of sheep in performance testing in Czech republic is on the same level, like in the sheep breeding developed countries.
Analýza užitkových vlastností chovu prasat zařazeného do kontroly užitkovosti
JELÍNKOVÁ, Lenka
The aim of the diploma thesis was to analyse reproductive and productive parameters at a particular pig farm participating in the performance testing. The monitoring took place between years 2019 to 2021. The sow reproductive traits included sows of the Czech Large White - CLW (977 litters), CLW x CL (CL = Czech Landrace) (616 litters), Duroc (169 litters), Pietrain (156 litters), 125 litters by boars D x LWSL (Large White - sire line) and 146 litters by boars Pn x LWSL. Higher number of total born (15.6 vs. 15.4 pcs), live-born (14.5 vs. 14.3 pcs) and weaned piglets (13.5 vs. 13.2 pcs) was confirmed within maternal breeds in CLW x CL sows, compared to CLW sows. The highest number of total born, live-born and weaned piglets was confirmed within the paternal breeds after boars D x LWSL (11.2 pcs, 10.3 pcs and 9.6 pcs). The lowest fertility level was found out at the Pietrain breed (10.0 total born, 9.2 live-born and 7.7 weaned piglets). Boars of the CLW (1,448 pcs), Duroc (434 pcs), Pietrain (339 pcs), D x LWOL (368 pcs) and BO x Pn (363 pcs) and gilts of the CLW (3,479 pcs), Duroc (487 pcs) and Pietrain (343 pcs) were analysed in field test. The highest average daily gain from the birth was achieved by boars LWSL x Pn (730 g), the lowest average backfat thickness was achieved by boars D x LWSL (5.2 mm) and the highest lean meat content was achieved by boars Pietrain (62.2%). The best performance traits in the field test were recorded in boars in 2020. The highest value of the average daily gain from the birth was in CLW gilts(659 g) and the lowest average backfat thickness (5.2 mm) and the highest lean meat content (62.5%) were in Pn gilts. The best results of the field test of gilts were reached in 2021.
Analýza vybrané ekologické farmy
Navrátilová, Iva
The aim of this diploma thesis was the analysis of organic farm AgroFyto spol. s.r.o., which deals with dairy cattle breeding and suckler cattle. In an analysis of selected indicators were evaluated for milk production, selected parameters of reproduction and meat production. The results of the system of classification of carcasses of SEUROP cattle were evaluated within the meat yield. The animals were monitored for the period 2014-2017. Values related to dairy yields and dairy reproduction were obtained from performance monitoring for 2015 and 2016. The individual years were divided into four seasons after three months. In this work was evaluated the effect meantime, the time of calving, lactation, breed and season on the amount of milk in the period, as well as the impact on the amount of milk fat and protein content of milk for the year 2015 to 2016. The analysis revealed a difference in the evidence of the effects on milk in the monitored period. Regarding the influence of milk volume on fat and protein content in milk, this effect has been demonstrated only in one of four seasons. In the analysis, the effect of the season on the amount of milk was not statistically proven. Compared to organic farm BEMAGRO a.s and foreign ecofarm, it was found that cattle on dairy farm AgroFyto spol. s.r.o. Better results in the quantity of milk in question over the reference period. Dairy Farmer FARMA ZPZ s.r.o. But they have a better milking. AgroFyto spol. s.r.o. Has a dairy with the lowest protein content in milk and the highest fat content compared to two organic farms. Compared to the overall results of the KU in the Czech Republic, AgroFyto spol. s.r.o. Lower milk yield, but higher fat in milk.
Vyhodnocení úrovně zabřezávání skotu na farmě využívající řízené reprodukce stáda
Střecha, Filip
The aim of this thesis was to evaluate the level of mating on the farm using controlled herd reproduction. The evaluation of the level of pregnancy was carried out in dependence on the individual month of observation, the monitored parameters of milk from the performance control of individual lactations and the lines of fathers of cows. Performance data for January 2017 - April 2018 were used for the assessment. Based on the result, it can be concluded that the seasonal percentage is affected by the season. It has been shown that the percentage of pregnancy has decreased in the summer month. The significant decrease in the rate of mating was occurred with the increasing age of cows. The percentage of lactation, regardless of the order of lactation and the line of bulls, is negatively influenced by the milk yield and by the positive effect of the number of lactation days when embedded. To confirm the negative effect of milking yield on the breeding, the NEB breeders showed the highest milk yield and the lowest percentage of pregnancy. Significant fluctuation were occurred in value when evaluating individual indicator depending on the reference month. In the middle of the reporting period, the amount of urea in the milk had a positive effect on pregnancy. A similar result was obtained for the T / B ratio.
Vybrané vlivy na mléčnou užitkovost dojnic u českého strakatého skotu
POKORNÁ, Lucie
The diploma thesis "Selected factors on milk utility of Czech Fleckvieh dairy cows" deals with certains effects on selected cattle herd, which are detected from milk utility control. The author compares dairy cows within first and third lactations in all cases. Overview of used literature is selected into specific chapters, in first part the Czech Fleckvieh is defined with its history, characteristics, related breeds and breed utility. Another comprehensive chapter is devoted to milk utility, lactation and selected factors on animal utility. Last part of literature overview is devoted to reproduction and reproductive indicators. Second main part, which is called material and methodology, author deals with cattle herd in Jasanka s.r.o. company, judging and assessing selected factors with help of milk utility control results. Collective results are assessed through statistics.
Mléčná užitkovost plemene lacaune ve vybraném chovu
CHODCOVÁ, Anna
This thesis deals with the influence of age of lacaune breed ewes on milk performance, influence of parity and influence of stage of lactation on milk performance in terms of the milk yield and the content of individual components of milk. Further was evaluated the influence of rams on milking. Data from farm Statek Horní Dvorce s.r.o. were used and data from Svaz chovatelů ovcí a koz z.s. were used too and entries from years 2014, 2015, 2016 and 2017, when the milk performance was monitored by method AT. The influence of rams on milking has not been fully demonstrated. For the four comparing lines, the statistically significant difference was only between LINUX and LUPIN, and only in one year of performance control over the three years compared. From the point of view of the influence of age on total milk yield in the studied farm, fat and protein content of lacaune breed increased with increasing age, whereas the lactose content showed a decreasing trend. The influence of parity had a significant effect on the monitored parameters of milk. With an increasing parity, the protein content was slightly increased, the fat and lactose content decreased. Ewes on the second lactation showed the best results in milk yield, since the third lactation was recorded in milking a decrease. The influence of stage of lactation on milking and on the content of individual components of milk was also significanted. With prolonged lactation the milk yield and lactose content were decreased. The fat and protein content has been shown to increase with the increasing of the stage of lactation.

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