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Porovnání sklízecích řezaček JOHN DEERE 7800 Pro Drive a JOHN DEERE 7300 při sklizni senáže a kukuřice na siláž
ADAMEC, Petr
This thesis introduces processed information and ideas related to the line for crop processing. A review of literature is focused on characteristics of basic forage and forage harvesters. The methodology includes procedures for measurement and comparison between the forage harvesters John Deere 7800 and John Deere 7300. Results of the work carry measured and calculated data which were obtained in year 2015. Harvesters are compared in terms of forage cutting and grain grinding quality, performance and fuel consumption. The work also presents the cost expenses associated with operation of the harvesters.
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Silážování vojtěšky seté
Zitta, Jan
ABSTRACT The goal of this bachelor thesis is to determine the proper procedure for silage of lucerne sown. The first part of the bachelor thesis deals with the description of lucerne sown, her morphological structure and claims in nutrients. Lucerne sown is undemanding to add nutrients to the soil, but before sowing it can be fertilized for stock. Bachelor thesis deals also with soil and climatic conditions on the quality of the fodder and her feed value. To ensure optimal production with high forage quality it is important to have an optimum ratio of air and water in the soil. The second part of bachelor work explores the meaning of silage, technological methods for the production of silages and of silage influence on the quality and health safety forage of lucerne sown. During silage it is important to have quick acidification of the mass, thereby suppressing undesirable influence of microflora, which causes depreciation of the silage. For silage of Lucerne sown are suitable especially chemical silage additives, which are very important for quick acidification of the silage mass.
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Silážování jetelotravních směsí
Peichl, Josef
This thesis deals with the description of some basic kinds of legumes and grasses in the Czech Republic.The thesis lists and describes the requirements for growing and the factors that influence it.At the same time the benefits and suitability of particular components of legumes and grasses associations are considered.Growing methods and their efficiency are mutually compared.The thesis proves the importace of forage value,the review of factors influencing the final quality of fodder as well as its suitability from this cover for the ensilage conservation.The ensilage conservation is important storage of good quality fodder throughout the year and thus makes stable fodder amount throughout the year for the meat cattle.Keeping the ensilage conservation is also important for cattle breeding and fattening during spring,autumn and winter seasons.Good quality ensilage depends on appropriate technological procedure.The ensilage additives can be really useful during the ensilage process and play an important role in the final quality of fodder.
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Výskyt kvasinek v silážích a jejich význam
Vaculíková, Barbora
The aim of the study was to assess the effect of yeast in silage and verify the fact that the additives will ensure inhibition of undesirable microorganisms. The literature review focused on the metabolism of yeast, their importance in silages limitations and possibilities. Model experiments were performed with peas with barley silage and with corn silage. The influence of additives on the final quality of the silage and their influence on the content of microorganisms, together with the quality of the fermentation process, was assessed. According to the provided measurements it can be argued that the use of additives was only partly due to the limitations of yeast and aerobic stability. Chemical preservatives based on organic acids favorably slowed the onset of secondary fermentation in peas with barley silage, even though there was no suppression of the number of yeast on this option. The negative correlation of yeast dry matter content was confirmed for the corn silage (r= 0.6219). In the silage with a chemical preservative (2,402 +- 0,775 log CFU/g) positive effect (P<0,05) on the limitation of yeast compared was detected to the control silage. Based on measurements of pH the degree of contamination of yeast cannot be evaluated. It was confirmed that even the best additive cannot guarantee quality and stable silage, if the principles of silage are not adhered to.
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The influence of silage additives for qualitative parameters of grass silages
HANETŠLÉGROVÁ, Petra
The main goal of this thesis was to evaluate the influence of additives on the qualitative indicators of grass silage. The evaluation concentrated in particular on lactic acid, pH and the degree of proteolysis. The selected qualitative indicators were monitored in 36 samples of grass silage from the region of South Bohemia. Silage samples were divided into three groups. The first group was a guide sample without any additives. The second group was treated with bacterial additives and the third group with bacteria-enzyme additives. Classification of silage samples was done according to "Norma 2004". Each sample was evaluated in terms of quality of fermentation and the content of nutrients. Statistically significant differences (p <0.05) were found in the content of lactic acid, pH and the degree of proteolysis between the group of silages without additives and the group treated with silage additives.
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Factors influencing quality and nutritive value of grass silages
NOVOTNÝ, Jaroslav
The paper analyzes the factors affecting the quality and nutritive value of wilted grasssilage. Grass silage sample were collected in the operating conditions for the firstmowing. Three groups were formed after 12 samples. The first group was the controlwithout using preservatives. The sekond group were included in the silage treated withbacterial agents. The third group included the bacterial-enzymetreated silage additives. There were no statistically signifiant differences in lactic acid kontent (P < 0.05) andvalues of thedegree of proteolysis (P < 0.05) between the kontrol group without the useof silage additives and the group, which was used for bacterial and bacterial-enzyme additives.
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