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Hodnocení faktorů ovlivňujících ekonomiku produkce mléka
Nastasyuk, Iryna
This thesis deals with the evaluation of various factors that affect the economy of milk produc-tion. First part is focused on the factors that influence the quantity and quality of produced milk and its monetization. The following part describes the situation on the market in Czech Republic and Ukraine. The basic datas, presented in this thesis, about the market in Czech Republic and Ukraine are: cattle population, productivity of dairy cows, production of milk, prices on milk, consumption of milk and dairy products and influence of the state on milk production.
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Vliv úrovně metabolických procesů živočišného organismu na zastoupení lipidových složek mléka
Šulová, Marie
This bachelor thesis entitled ‘Influence of the level of metabolic processes of animal organism on the representation of lipid components in milk’ deals with physiological processes which influence synthesis, composition and release of lipids by secretory cells of the mammary gland through various metabolic ways. The introductory chapter focuses on the characteristics of the basic components in milk; individual fractions of milk fat are described in detail. The following chapters describe the synthesis of milk fat and lipid metabolism in the body of ruminants, namely cattle, and factors that influence the amount and composition of milk fat. A proposal of the methodology of experimental work describing division of animals into groups, feed diets and the overall progress of the experiment is a part of the thesis.
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Hodnocení welfare v chovu dojnic
Sovadinová, Simona
Animal welfare enhancement requires specific problems being reliably identified and corrective actions being defined afterwards. This diploma thesis evaluates the level of animal welfare on Czech farms with dairy and dual purpose cattle. The thesis uses the European project Welfare Quality®, which is a tool for a comprehensive assessment of livestock living conditions. WQ® gives the farms one of four final marks – excellent, enhanced, acceptable, and not classified. Most farms in this research were marked as acceptable. The organic farm received the best rating of all farms. Barns were most deprived of animal feeding, while animal housings were rated well. This research considers welfare as a multidimensional complex and also assesses specific aspects of dairy farming.
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Vliv vybraných minerálních prvků ve vztahu ke krevnímu obrazu u skotu.
DRESLER, Sylva
The aim of the current doctoral thesis is to evaluate the influence of the composition of a total mixed ration supplemented with dietary, organically bound zinc on health status and related hematological and biochemical parameters and mineral levels in blood in cows and their calves. The experimental part is divided in two subareas. The first experiment is monitoring the effect of supplementation of the organic form of zinc on lactation performance of cows and effect of TMR composition on the blood parameters of the hematological, metabolic, and mineral profile of cows and their calves. The second experiment is focused on an effect of the addition of organic zinc on blood parameters, health, and immunological status of weaned calves - metabolic profile, concentration of vitamins A and E, trace elements Cu and Zn, and total immunoglobulin levels in blood serum.
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Porovnání teplotně vlhkostního indexu v odlišných stájových objektech pro chov skotu
MOULIS, Petr
The topic of the bachelor's thesis deals with the issue of microclimate in the stable, where the temperature or humidity as an individual quantity does not indicate the ther-mal comfort of animals, so the temperature-humidity index is determined, which after measuring the values of temperature and humidity information on animal thermal stress. The measurement of temperature and humidity values took place from 1.1.2022 to 31.3.2022, which took place on the Moulis farm. Subsequently, the measured results were evaluated using graphs that show the course of temperature and humidity toge-ther with the temperature-humidity index.
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Heredity of polledness in cattle
HEGROVÁ, Kateřina
Most cattle breeds were originally naturally horned. The horns were used as a tool of defense and a manifestation of dominance in the herd. With increasing pressure to increase the efficiency of breeding and increase the safety of both animals and care-givers, horned cattle are being dehorned. However, this does not correspond with welfare requirements. In 2009, the complete genome of cattle was sequenced, which started a series of researches in the field of heredity. Genetic manifestations of horns or polledness are controlled by the autosomal locus polled, located on chromosome pair BTA1, characterized by two alleles, for the dominant P allele representing polledness, and for the recessive allele p for horns. In cattle we encounter 4 mutations of these alleles Celtic, Frisian, Mongolian and Guarany. Manifestations of polledness are also influenced by alleles for the presence of scurrs Sc and sc, or alleles for the manifestation of the so-called African horns Af and An. Thanks to the testing of individuals using microsatellite markers or the SNP method, it is possible to mark genetically polled individuals and thus help breeders to expand hornless breeds.
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Vhodnocení vlivu reprodukce na mléčnou užitkovost dojnic plemene český strakatý skot
ŠVAJLENOVÁ, Kamila
This work on the topic "Evaluation of the effect of reproduction on the milk yield of dairy cows of Czech pied cattle" deals with reproductive indicators that affect the milk yield of dairy cows. These indicators were monitored and evaluated in two different herds in the company JASANKA s.r.o. From both herds were selected 50 cows, in which the reproductive effects on milk yield were determined and subsequently evaluated, and then the herds were compared. The first part of this work deals with the breed Czech pied cattle and his history, reproduction and milk yield of cattle. Further were introduce the company JASANKA s.r.o. and in the last part of this work were introduce the results found in the herds. The first of the monitored indicators was the age at first calving, then the interval, service period, insemination interval, insemination index and reproductive disorders in the herds, and last but not least, recommendations for breeders to improve reproduction and milk yield in the herds. During the study, it was found that the average time of first calving in the given herds is 30-31 months and 26-27 months. The average values of the interval are 399 days and 406 days. The average values of the service period are 117 days and 124 days. Another of the examined effects was the insemination interval, for which the average values were 67.5 days and 74 days. The insemination index is 1.9 in both herds. Were discovered very high values of reproductive disorders and it 90% and 40%. Although the second does not show the best results, in some cases they are worse than the first herd, the level of milk yield is much higher here.
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Vybrané vlivy na mléčnou užitkovost dojnic
MICHÁLKOVÁ SUDOVÁ, Klára
The diploma thesis deals with the evaluation of selected effects on the milk yield of dairy cows of the monitored herd of Holstein cattle. Evaluation and data collection It took place in the Miller farm in Svrkyně. The performance control data were subsequently processed and statistically evaluated.
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Moderní trendy ve výživě telat
VLÁŠEK, Pavel
The idea of elaboration of this bachelor thesis was the elaboration of a literature review concerning the development of the morphology of the digestive system of calves, diseases and the method of their breeding and feeding. It also discusses feed additives-probiotics, prebiotics, synbiotics and phytobiotics. The practical part deals with the effect of probiotic additives on health and body growth. A total of 14 calves were included in the experiment, continuously divided into two groups of 7, control and experimental. Both groups were weighed at birth and subsequently every week until the age of 8 weeks. The frequency of diarrheal disease was also monitored during breeding. The results of the experiment show a positive effect of the combination of Lactobacillus sporogenes, Enterococcus faecalis and Bifidobacterium bifidum on reducing the incidence of diarrhea and increasing the average absolute increase, although it was not statistically significant (P>0,05).
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