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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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Stanovení biologicky aktivních substancí v rostlinném materiálu
Dobeš, Jiří
This thesis is focused on the determination of antioxidants and antioxidant activity. In the first work DMPD method was optimized to determine the antioxidant activity of antioxidants standards and the reaction was monitored depending on the time, temperature and concentration. In the second work automated determination of antioxidant activity of phenolic compounds standards rutin, quercitrine and standards of phenolic acids gallic acid and ferulic acid was tested using five different methods used in the determination of antioxidant activity using an automated pipetting machines and spectrophotometer. In the third work phenolic profile and total antioxidant capacity (TAC) was determined in apricot cultivars with methods high frequency liquid chromatography with tandem electrochemical and UV spectrometric detection and these two methods were compared. In the fourth work electrochemical methods used for the determination of phenolic compounds were described. In the fifth work oxidative stress induced by silver ions in the Staphylococcus aureus bacterial culture was investigated using spectrophotometric and electrochemical methods.
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Occurrence of perfluorinated compounds in fish from rivers of the Czech Republic
HOLAŇ, Viktor
The object of this thesis is the assessment of fish contamination by selected foreign substances as perfluorinated compounds. these sites were selected for the thesis' purpose: Bečva - Dluhonice, Elbe - Přelouč, Bílina - Usti nad Labem, Jizera - Předměřice, Sázava - Nespeky and Otava - Topělec. Fish were caught by electrofishig. The concetrations of contaminants were measured in fish muscle and liver. The analysis were performed using liquid chromatography (HPLC - MS / MS). Concentrations of PFOS, PFNA, PFOA, PFHxS and PFHpS in fish muscle and liver tissues were monitored.
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Evaluation of production costs, revenues and quality of potato tuber in organic and conventional farming system
MALECHA, Pavel
In 2009, there was an experiment with strains of potatos conducted in the region of Soběslav, at an altitude of 614 m. The aim of this thesis was to evaluate production costs, revenues and internal tuber quality in terms of organic and conventional farming system. The work observed dry matter, starch, reducing sugar, chlorogenic acid, vitamin C, nitrates and solanine. An attempt was made on two different strains of potatoes which have different growing season (Impala - very early, Adela - early). Adela variant showed an average of 7.51 t / ha higher yield than the Impala. Higher costs per tonne of potato production were in the conventional way of cultivation. From the evaluation of the internal quality of tubers, there was an apparent influence of the strain and cultivation method on the content of controlled substances. The executed test showed the health of potatoes grown in an organic and conventional way.
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Free time activities in civic association Český sedlák with regard to health limitations of drug users
BRODSKÝ, Dušan
The thesis deals with the evaluation of situation on the drug scene in Europe and Czech Republic. Introduces basic concepts related to health limitations of drug users and other addictive substances users. It works with clients potential health limitations. It addresses health and its importance for life. Describes basic components of free time. It offers questions for clients. Proposes the basic methods of work in free time. Animation as the most suitable method.
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The comparison of winter and spring wheat quality
UHLÍKOVÁ, Jindřiška
The theme of this Bachelor's thesis is to compare the grain quality of winter and spring wheat varieties. There were a total of 16 selected varieties, 12 of winter- and 4 of spring. The experiment was conducted on the grounds of the South Bohemian University in Ceske Budejovice. The botanic characterization of wheat, the chemist of wheat grain and the quality parameters used for examination are mentioned in the introductury part . The first part of the experiment was focused on the control during the growth, the second part documents the analysis of examined samples (mass per hectolitre, N-substances, gluten, Zeleny test, falling number).
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Iodine content in milk and urine of dairy cows
VÍTKOVÁ, Lucie
This paper provides data on the iodine content in milk, urine and blood plasma of dairy cows on feed rations with various amounts and forms of iodine. The experiment included a group of 9 cows with different milk yield of livestock in the Klatovy district. The samples of milk, urine and plasma were collected from January to May 2011 at intervals of 3-4 weeks. Iodine content was determined spectrometrically after alkali burning of the sample. Vitamix S7+ mineral feed additives with anorganic iodine content and UNI SATURAN J with content of organic iodine were used as the sources of iodine. When feeding rations fortified with only anorganic iodine in quantity of 80 mg.kg-1 mineral feed additives, the content of iodine in milk was 33.07 +-31.13 mikrogramů.l-1, in urine 192.87 +-65.56 mikrogramů.l-1 and plasma 76.18 +-26.22 mikrogramů.l-1. When feeding diets with added organic forms of iodine in quantities of 1 mg.kg-1 mineral feed additives and lower contents of inorganic iodine its average content in milk reached 51.13 +-26.29 mikrogramů.l-1 in urine 221.20 +-137.65 mikrogramů.l-1 and 83.13 +-44.24 mikrogramů.l-1 in blood plasma. Low iodine content in milk and increased iodine content in urine indicate reduced use of iodine in the oraganism despite its optimum intake. These conditions are often associated with the effect of goitrogenic substances. Normal levels of iodine were reached in plasma.
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Alcohol, marihuana and youth
KREJČOVÁ, Iveta
The subject of this work is misusing alcohol and illicit addicting substances (primarily marijuana) by students at high schools. The research was done at specifically chosen high school by questionnaires, that helped to uncover student?s experiences with illicit addicting substances.
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Risk behavior of high school students
PFAUSEROVÁ, Hana
This work deals with the risk behavior of high school students. The investigation oriented on risk behavior, especially truancy, bullying and using addictive and illegal substance is a part of this work. The survey, which bears the hallmarks of quantitative research, is also engaged in leisure time of youth and family backgrounds of students.
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Kvalita humusu půd vybrané části Českomoravské vrchoviny
Pinteš, Lukáš
This bachelor thesis is focused on humus quality. They were samples taken from a chosen part of Českomoravská vrchovina, specifically from the Velkomeziříčský bioregion (16 locations). The samples were taken from Nové Město na Moravě and also northerly of the motorway D1 between Jihalva and Velké Meziříčí. The quality of humus was determined by the method Kononová-Bělčikova, which is based on fractionation of two, for humus typical substances, humic and fulvic acid. The thesis briefly introduces the soils as a whole and the causes of its origin. Furthermore, the work is focused on the organic fraction and its origin, meaning, composition and quality determination of humus. There are also characteristics of the area of interest, accompanied with some maps, processing soils samples, its evaluation and comparison of results with the neighbouring locations and literature.
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