|
|
Vliv pohybové aktivity dojnic v krmišti na jejich produkci mléka
Caletková, Jitka
This bachelor's thesis deals with the influence of movement activity of dairy cows in the feedlot on their milk production. The aim was to confirm or disprove the statement that when a dairy cow has more visitors at the trough, she should also have a higher milk yield. Dairy cows were observed at the ZOD Haná, družstvo se sídlem ve Švábenicích, specifically at the VKK Rybníček center with 592 dairy cows. Dairy cows in their first lactation were selected for observation. Observations of dairy cows took place during 2021 (spring, summer and autumn) and 2022 (winter). Each observation during the year contained 12 measurements. The dairy cows that were observed at the trough were entered into the table and subsequently their milk productivity was traced, and the average daily temperature was also entered. The results show that dairy cows that were caught three and four times at the trough had higher milk yields.
|
|
|
Vliv věku při prvním otelení na mléčnou užitkovost holštýnských dojnic v konkrétním podniku
Landová, Valentýna
The bachelor thesis dealt with the effect of age at first calving of Holstein dairy cows on their subsequent milk yield. In the literature section, the basic characteristics of Holstein cattle, milk yield, milk composition and the influences on milk yield were described. In addition, fertility and reproduction of cows were defined in more detail. The practical part took place on a farm located in the Central Bohemia region. A total of 52 Holstein dairy cows were included in the evaluation. The selected cows were divided into four groups according to their age at first calving (calved up to 21 months, 22-23 months, 24-25 months and over 26 months). The data from the performance monitoring of Holstein cows in their first lactation were used in this study. Milk performance parameters monitored included milk yield, fat, protein, lactose, urea and somatic cell count. The effect of lactation stage on the listed milk parameters was also monitored. The lowest milk production was achieved by cows calving at 21 months of age (29.74 kg milk). On the other hand, the highest milk yield was obtained by cows calved at the age of 26 months and above (33.52 kg milk). This difference was found to be statistically significant (p<0.05). Furthermore, a sta-tistically significant difference (p<0.05) was found between the average milk yield of cows calved at less than 21 months of age and those calved at 24-25 months of age. The effect of age at first calving did not have a statistically significant difference (p>0.05) on the other observed milk contents.
|
|
|
Analýza parametrov mliečnej úžitkovosti u dojníc pred a po inštalácii ventilátorov v stajni
Kancír, Ján
The aim of the study is to analyse milk performance parameters in dairy cows before and after the installation of fans in the barn. For this purpose, observation was carried out in a particular farm. The observation was carried out during the period from 2016 to the end of 2022. The whole observation was divided into two periods namely the period before and the period after the installation of the ventilators. The milk performance parameters will mainly include milk yield (kg milk), lactation order (n) and lactation stage (days). From the results obtained, the following can be stated. The installation of fans had an effect on milk yield over the whole follow-up period where before installation the mean milk yield was lower (P > 0.05) and after installation the milk yield was higher (P < 0.01). The effect of fans was also observed on milk constituent content. Considering only the summer months (June, July, August), it was found that there was a demonstrable increase (P < 0.01) in milk yield in cows after installation of fans. Regarding milk constituents, the installation had no demonstrable effect (P > 0.05). Nevertheless, a similar trend of reduction in fat and protein percentage can be seen as in the whole follow-up.
|
|
|
Vliv pořadí dojnic holštýského skotu v dojírně na parametry mléčné užitkovosti ve vybraném chovu
Gašpariková, Tereza
This bachelor thesis focuses on the effect of the order dairy cows of Holstein dairy cattle in the parlour on milk yield parameters. The monitoring was carried out in a selected breed for individual sections, morning and evening milking during all seasons (Janua-ry, April, August, October). The monitoring included determining of the order of cows in the parlour, preference of milking place or preference of left or right side of the parlour. At the same time, milk yield was monitored, specifically milk yield (kg milk), lactation order (n), lactation phase (days), fat (%), protein (%) and lactose (%) content. Data of milk yield of dairy cows were obtained from the program FARMSOFT and from ČMSCH, a.s. (milk yield control). There were monitored 2 164 cows during the year. According to results cows with higher lactation order (older cows) and related higher milk yield entered the milking parlour first. On the contrary, cows with a lower lactation order entered the parlour last. The cows with higher milk yield preferred the first and last milking stalls. It was also found that older and higher yielding cows chose the left side. From an economic point of view, this farm was in profit in 2022. The main reason was the higher farm gate milk price and increased milk yield.
|
|
|
Výživa vysokoprodukčních dojnic v podmínkách farmy na Písecku
Molková, Tereza
The main theme of this bachelor's thesis is the evaluation of the quality and level of nutrition high production dairy cows. This final work is separated into two parts. A literature search is prepared for the given topic, in which the nutrition of individual categories of dairy cows is specified in more detail and topics related to this are cove-red. The literal reshuffle follows an appreciation of the feed base in the practical part. two feed rations applied by a particular holding from the point of view of the nutrient content are analyzed and compared with calculated feeding standards for monitored dairy cow categories. The conclusion of the work is to assess the suitability of the feed ratio of each breed category.
|
|
|
Porovnání získaných informací o množství nadojeného mléka z kontroly užitkovosti a z dojírenských systémů
Žáková, Monika
The aim of this thesis was to compare milking data from farm productivity control and milking systems. Data collection using a PDA was used here as part of a performance check when milk from each dairy cow was recorded manually from a currently calibrated measuring system. The data from the milking system was downloaded from the Farmsoft program, which is used on farms to manage the herd. The comparison took place in 90 dairy cows when 3 lactations were evaluated from each. The difference between the data from the milking parlour system and the KU was confirmed on one of the three farms with more than a 5% probability. The average difference between milk yield was 4.2 kg and the maximum deviation reached 54.1 kg. Several possibilities have been identified as reasons for the difference. The first option is an inappropriate identification device in the form of responders on collars, when there is greater damage and the impossibility of loading dairy cows at the milking parlour. Subsequently, it is possible to point to the different techniques of the milking parlours, where the technology from the BouMatic farm appears to be less reliable. Another possible cause is a misconfiguration of the milking technology with the computer system. Further research into the possible causes of poor identification of dairy cows and the acquisition of innovative technologies for animal identification is recommended.
|
|
|
Hodnocení kvality mleziva dojnic českého strakatého skotu v ekologickém a konvenčním chovu
Buďová, Tereza
The theoretical part aims to provide information about the mammary gland, colostrum, its composition and quality control, types of milk, milking technologies, parlours, and generally about the importance of cattle breading focusing on Czech spotted cattle breed. The main goal of the practical part was to evaluate and compare the quality of colostrum in eco-breeding and conventional breeding. A total of 266 dairy cows of the Czech spotted cattle were included in the evaluation. Dairy cows were divided into individual lactations in order to evaluate the quality of the colostrum in % Brix, the sex of the born calf and amount of milk in liters per first milking. The obtained results were processed and collected into charts. Our results show that the colostrum quality is better in the eco-breeding in Dalečín than in conventional breeding in Věstín. In Dalečín, 114 dairy cows were evaluated. They reached average Brix values of 20.97 % in the first lactation, 20.42 % in the second, 21 % in the third, 25.15 % in the fourth, 23 % in the fifth and 22.17 % Brix in the last lactation. In total, 57 heifers, 53 bulls and 9 stillborn calves were born there. The average milk yield for individual lactation was 2 liters for the first, 4.1 liters for the second, 4 liters for the third, 4.1 liters for the fourth, 6.2 liters for the fifth and 4.9 liters for the mixed lactation. According to these values, we can state that in the eco-breeding in Dalečín the fourth lactation is the best since it reached 25.15 % Brix. In Věstín, 152 dairy cows were evaluated. In total, 79 heifers, 73 bulls and 8 stillborn calves were born. The average milk yield was 20.22 % for the first lactation, 19.95 % for the second, 21.17 % for the third, 20.63% for the fourth, 21.24 % for the fifth and 21.08 % Brix for the mixed lactation. The average milk yield for individual lactation was 2.47 liters for the first, 4.58 liters for the second, 4.17 liters for the third, 6.6 liters for the fourth, 5.38 liters for the fifth and 5.42 for the mixed lactation. We can state the fifth lactation as the best since it reached 21.24 % Brix.
|
|
|
Physiotherapy during and after giving birth spontaneous way
Piklová, Lenka ; Aujezdská, Eva (advisor) ; Novotná, Klára (referee)
BACHELOR'S THESIS ABSTRACT Author: Bc. Lenka Piklová Supervisor: Mgr. Eva Aujezdská Title: Physiotherapy during and after giving birth spontaneous way Bachelor's thesis abstract: This bachelor's thesis deals with problems of childbirth and postpartum period of women and deviations of the musculoskeletal system occurring in connection with spontaneous childbirth and puerperium most frequently. It also deals with the possibilities of physiotherapy, which can be used to alleviate, eliminate or prevent these abnormalities. The aim of the paper is to provide a comprehensive overview of information, to describe the effect of physiotherapy on a woman's recovery after spontaneous childbirth and to compile an information booklet with therapeutic exercises. The thesis is divided into two parts. In the theoretical part, there is a description of the course and mechanism of spontaneous labour, including the anatomical structures that are most burdened by this process. Physiotherapy options suitable for obstetric care are also presented. More space is dedicated to the postpartum period and it offers a list of physiological and the most common pathological changes, including thrombophlebitis, thromboembolism, birth injuries, pelvic floor muscle dysfunction, diastasis of the abdominal muscles, weakening of the integrated...
|
|
| |
|
|
Výživa dojnic v průběhu tranzitního období
SVAČINOVÁ, Nela
In this bachelor thesis the basic factors are described related to calving, correct nutrition and lactation of the dairy cow. The individual parts of the digestive tract and the course of digestive physiology are mentioned in the introduction. Subsequently, a section is devoted to transition period and risks that surround it. A substantial part of the work is also summary of basic nutrients found in feeds and basic components included in cattle rations.
|
guest ::
