Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2016 (vol. 64), issue 1

Influence of Roughness on Quality Molybdenum Deposit Layer by Thermal Spraying

Marián Bujna, Miroslav Prístavka, Petr Dostál, Maroš Korenko, Milan Kadnár

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 9-14 | DOI: 10.11118/actaun201664010009  

In this paper we deal with the impact of roughness on the quality of molybdenum layer. Insufficient cleaning may result in a poor quality of the sprayed layer. Our aim is to analyze the influence of surface roughness on the quality of molybdenum layer thickness applied by thermal spraying. Thermal spraying influence several physical and chemical properties of the coating surface. The most important ones include: hardness, density, porosity, corrosion resistance and adhesion. This technology of surface treatment of material is often used for its high degree of hardness. Hardness and erosion resistance are the parameters that need to be achieved particularly...

Visualization of Spot-welding Resistance

Michal Černý, Petr Dostál, Vojtěch Kumbár

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 15-29 | DOI: 10.11118/actaun201664010015  

This contribution devotes to monitoring of processes running during joining of steel sheets by incadescent so called point welding using non-destructive trial method - acoustic emission (AE). The joining process is detailed described within experimental measuring from the point of view of metallurgic effects runnig during weld creation (records obtained by means of AE method). It takes into consideration quality of joined steels within welding data of steel producer. Steel welding (determined by chemical composition) during mechanical verification and firmness of welds consider results of measurement AE and fracture effect of point joints. The measurement...

Verification of the Quality of the Weld When Utilising the MAG/CO₂ Method

Michal Černý, Petr Dostál, Pavel Mazal, Michal Šustr

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 31-42 | DOI: 10.11118/actaun201664010031  

In contribution there is described the process of welding by using MAG/CO2 method, mechanical (post fact) and nondestructivein situ) measurement including the discussion of results. The materials of various welding have been used for test. According to ČSN 420002 steel with mark 11 373 has been chosen as a material with guaranteed welding and steel with mark 19 312 has been chosen as a material with hard welding. The sheets with dimensions 30×5×250 mm have been used at welding. The source activity having affect in process of welding is caught on AE records. It is described as per affirmatived forms of individual hits and overshoots at active levels...

Visualization of the Coated Electrode Welding

Michal Černý, Petr Dostál, Michal Šustr

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 43-51 | DOI: 10.11118/actaun201664010043  

This work is dedicated to the evaluation of the welding process in terms of assessing the impact of weldability based on the recording of the non-destructive testing of the acoustic emission (AE). Measurements are performed utilising both materials with guaranteed weldability and materials with reduced weldability. In addition to welding, the thesis also discusses the material (metallographic and fractographic) and mechanical verification of joint formation and the variations in behaviour of metals of differing chemical composition. It also includes an analysis of AE records in relation to the condition of the material during the developing of fusion...

Occurrence and Records of Old Varieties of Pome Fruit in the Tišnov Region

Libor Dokoupil

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 53-61 | DOI: 10.11118/actaun201664010053  

The objective of the study was to record the incidence of old varieties of pome fruit in some localities and to evaluate their growth properties and health status; at the same time to evaluate the endangered and oldest apple and pear trees. Samples were taken continuously and after short storage sensory evaluations were carried out. The focus was on fruit tree orchards, home fruit gardens, farmsteads, alleys, trees along roads and field orchards in cadastres of some communities of the Lomnice, Tišnov and Nedvědice regions. We recorded the growth parameters - volume of crown, diameter of the tree trunk, data of the health status and our own classification...

Haplic Chernozem Properties as Affected by Different Tillage Systems

Magdalena Hábová, Lubica Pospíšilová, Jaroslava Novotná, Barbora Badalíková, Lubomír Jurica

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 63-69 | DOI: 10.11118/actaun201664010063  

During 2007-2011 we assessed content and quality of humic substances with relationship to soil structure. Object of study was Haplic Chernozem (Hrušovany nad Jevišovkou, Czech Republic) under three different tillage systems: - conventional ploughing to a depth of 0.22 m (CP); - reduced tillage with shallow harrowing to a depth of 0.15 m (RTSH); - reduced tillage with subsoiling to a depth of 0.35-0.40 m (RTS). Isolation of humic acids was made according to IHSS standard method using spectrometer Shimadzu 8700. Aggregates stability was determined by wet sieving method. Results showed that macrostructure stability was directly connected with time...

Water Quality and Phytoplankton Communities in Newly Created Fishponds

Radovan Kopp, Pavla Řezníčková, Lenka Hadašová, Radim Petrek, Tomáš Brabec

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 71-80 | DOI: 10.11118/actaun201664010071  

During the growing season of the year 2012 and 2013 (April-November) hydrobiological and hydrochemical monitoring of newly created fishponds inhered in Northern Moravia was carried out. Water temperature, dissolved oxygen content, pH, conductivity and water transparency were monitored directly at the sampling place. At the same time, water samples for taxonomical identification of phytoplankton were taken. Chemical parameters stabilization occurred in the second year after flooding.Chemism of fishponds was influenced by higher ration of organic matter in fishponds sediment and by fertilizing and liming. Water saturation by dissolved oxygen, pH,...

Determination of the Titanium Contents in the Winter Oilseed Rape Plants (Brassica napus L.) by the Application of Fertilizer Containing Titanium

Peter Kováčik, Vladimír Šimanský, Pavel Ryant, Marek Renčo, Jozef Hudec

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 81-90 | DOI: 10.11118/actaun201664010081  

In order to obtain the information about changes of titanium contents in the phytomass during the growing season of winter oilseed rape and about the titanium contents drawn by the rape yield during two farming years the small plot field trial was established. In the trial the fertilizer Mg-Titanit (MgTi) containing 8.5 g of titanium in 1 liter was used. The experiment consisted of 5 treatments. 0 - control treatment without MgTi fertilizer; 2xTi0.2 - two applications of MgTi in the dose of 0.2 l/ha; 3xTi0.2 - three applications of MgTi in the dose of 0.2 l/ha; 2xTi0.4 - two applications of MgTi in the dose of 0.4 l/ha; 3xTi0.4 - three applications...

Feeding Effect of the Addition of Linoleic Acid on Meat Quality of Chickens

Simona Kunová, Juraj Čuboň, Andrea Bebejová, Miroslava Kačániová, Peter Haščík, Lukáš Hleba, Jana Tkáčová, Klára Vavrišínová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 91-98 | DOI: 10.11118/actaun201664010091  

The aim of this study was to analyse the influence of linoleic acid which was added in the broiler chickens feed mixtures in relation to chemical composition of meat, content of fatty acids and composition of blood serum. There were compared the characteristics of two groups of ROSS 308 chickens in the experiment (the experimental group with 5% addition of linoleic acid and the control group). The protein content of breast was significantly lower (P ≤ 0.05) in the experimental group than in the control group. There were found significant differences (P ≤ 0.05) in the protein content between sexes. There was found statistically significant (P...

Zero Waste; Energy Recovery From Non-recyclable Mixed Municipal Waste

Igor Laštůvka, Tomáš Vítěz, Jan Chovanec, Jan Mareček

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 99-107 | DOI: 10.11118/actaun201664010099  

Zero Waste is a strategy offering waste management solutions for today's businesses. The Zero Waste strategy has been created with the objective of stimulating sustainable utilisation of resources, production and consumption with the highest possible level of recycling of generated waste. Due to the fact that currently there is very little information and only few relevant data available as a base for the implementation of the Zero Waste strategy, waste management specialists approach and apply such a strategy in different manners. On the other hand, there are areas of waste management where such a strategy has already been applied on a long-term basis...

Evaluation of the Production Traits and Fruit Quality of German Plum Cultivars

Ágnes Mónika Molnár, Márta Ladányi, Szilvia Kovács

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 109-114 | DOI: 10.11118/actaun201664010109  

Due to the substantial damage caused in Hungarian plum orchards by the spread of plum pox virus (PPV), high-yielding, often self-fertile German, Serbian and Romanian cultivars with better resistance to PPV have been introduced. Observations on growth characteristics, flowering and harvest time, yield potential and PPV resistance have been made in commercial plum orchards and gene bank collections since 2006, and these were supplemented with laboratory analysis on the fruit. German cultivars have spread widely in recent years, so it is particularly important to investigate the production value of these cultivars. In addition to field observations, a...

Theoretical Substantiation of the Design of a Seeding Device for Differentiated Intra Soil Application of Mineral Fertilizers

Sayakhat Nukeshev, Dzhadyger Eskhozhin, Gennady Lichman, Dimitar Karaivanov, Evgeny Zolotukhin, Daniyar Syzdykov

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 115-122 | DOI: 10.11118/actaun201664010115  

The existing seeding devices not fully provide quality of application of mineral fertilizers. Unevenness and instability of application reach 20-40% at demanded to 15%. It, first of all, associated with the absorption of fertilizers and imperfection of seeding devices for fertilizer.For a solution of the problem of ensuring quality of application of mineral fertilizers at their intra soil differentiated application the original design of the pin reel of a seeding device is offered. Pins of the reel are executed in the form of the tetrahedral truncated pyramids located on crossing right and left multiple-helical lines on a reel surface. Theoretical...

Callus Induction and Rhizogenesis in Lathyrus sativus L.

Barbara Piwowarczyk, Anna Pindel, Ewa Muszyńska

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 123-128 | DOI: 10.11118/actaun201664010123  

Grass pea (Lathyrus sativus L.) is a leguminous plant distinguished by great resistance to abiotic and biotic stresses that can become a valuable source of protein feed in the nearest future. However, neglected by breeders, it needs the improvement of some disadvantages. Biotechnological techniques, including in vitro culture, are new and modern tools supporting plant breeding. Unfortunately, grass pea belongs to grain legumes that are well-known for their recalcitrance to in vitro manipulation and consequently plant regeneration.The aim of the study was the evaluation of different factors influence on callus induction and...

Guanicid and PHMG Toxicity Tests on Aquatic Organisms

Eva Poštulková, Radovan Kopp

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 129-134 | DOI: 10.11118/actaun201664010129  

The emergence and development of new algicidal products is caused by the ever increasing popularity of garden ponds as well as the use of these products in the fisheries sector, especially for disposal of cyanobacteria and algae. Most frequent means of combating cyanobacteria and algae are applications of algicidal substances. Newly developed algaecides include Guanicid and polyhexamethylene guanidine hydrochloride (PHMG). The aim of the study was to identify toxic effects of Guanicid and PHMG on zebrafish (Danio rerio) and green algae (Desmodesmus communis). We determined the acute toxicity in fish according to ČSN EN ISO 7346-1, and...

"Walczak's Pipes" in the Greenhouse Heating System

Kazimierz Rutkowski, Jarosław Knaga, Anna Krakowiak Bal, Jan Vogelgesang, Jakub Sikora, Łukasz Smółka

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 135-140 | DOI: 10.11118/actaun201664010135  

Diversified heating circuits inertia is particularly important by high variability of external conditions were the greenhouse is often overheated or large heat losses are noted. To meet these needs a new generation of heating pipes were used. They are hexagram-shaped pipes called "Walczak's pipe". Tubes of such shape have several times smaller volume in comparison with traditional heating pipes of the same outer diameter and higher stiffness. The preliminary assessment of the "Walczak's pipe" installed in the greenhouse is highly positive. Compared with the traditional system it enables better heat management. In the first research stage, the thermal...

The Colonization of Newly Built Fishponds by the Macroinvertebrate Assemblages

Pavla Řezníčková, Veronika Petrovajová, Jana Nerudová, Lenka Hadašová, Radovan Kopp

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 141-149 | DOI: 10.11118/actaun201664010141  

The succession of standing waters by aquatic macroinvertebrates is a present and insufficiently surveyed topic. This study is addressed to the issue of colonisation of newly created small standing waters. Two fishponds situated in the north of Moravia (Czech Republic) were studied. The aim of this study was to determine the character and colonisation rate of these ponds by macroinvertebrates, to evaluate the abundance, taxonomic composition and changes in composition of freshwater assemblages as a result of the fish stock influence. Basic abiotic parameters were also measured within the sampling occasions (e.g. water temperature, dissolved oxygen,...

Production Analysis of Biogas Plant in the Czech Republic

Josef Slaboch, Petra Bubáková, Jindřich Špička

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 151-158 | DOI: 10.11118/actaun201663010151  

The paper deals with an agriculture production analysis of biogas plant in the Czech Republic and evaluates the effect of input-factors and their relevance. Cobb-Douglas functions for crop, livestock and total agriculture production are used. Econometric models are used for structure and magnitude determination of land and labour factors at individual farms, which lead to an increase of production defined in scenarios. Estimations are based on cross-section data. Results indicate statistical significance and the economically highest effect of land and fixed assets on the total agriculture production. The results of first period model show, that there...

Tensile Strength of the Eggshell Membranes

Jana Strnková, Šárka Nedomová, Vojtěch Kumbár, Jan Trnka

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 159-164 | DOI: 10.11118/actaun201664010159  

The mechanical behaviour of eggshell membranes under tensile loading has been studied. Samples from different bird species (hen, goose and Japanese quail) have been used. Samples were cut out of the membrane in latitudinal direction. TIRAtest 27025 tensile testing machine equipped with a 200 N load-cell was used. Tensile deformation exhibits both non-linear as well as linear region. The experiments were performed at five loading velocities 1, 10, 100, 400 and 800 mm.min^-1. The main parameters describing the eggshell strength increase with the loading rate. This dependence exhibits the same qualitative features as the rate dependence of the...

Mycoplasma bovis Was not Detected in Milk from Dairy Cattle in the Czech Republic

Jakub Surýnek, Irena Vrtková, Aleš Knoll

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 165-168 | DOI: 10.11118/actaun201664010165  

The aim of this study was to screen selected Czech dairy cattle farms for presence of Mycoplasma bovis. Between 2012 and 2014, 160 individual samples of cow milk, 60 colostrum samples, and 105 bulk-tank milk samples collected on 21 dairy farms were analyzed in our laboratory. DNA was extracted from samples and tested by quantitative PCR assay for M. bovis. All analyzed samples were negative. Results support long-term trend of very low prevalence of M. bovis in the Czech Republic.

The Quality of Frozen-thawed Canine Semen With Respect to Semen Extender Composition and Sequence of Ejaculate Collection in Dogs

Jiří Šichtař, Ondřej Šimoník, Petra Folková, Adéla Dokoupilová, Radko Rajmon, Ivona Svobodová, Lukáš Jebavý

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 169-175 | DOI: 10.11118/actaun201664010169  

The aim of this study was to evaluate the effect of clarified egg yolk addition to semen extender, and the semen collection sequence on the quality of frozen-thawed semen in dogs. Semen was collected from 6 dogs in a time interval of 24 hours. As parameter of the quality of frozen-thawed (F-T) semen, the motility by computer assisted sperm analysis (CASA) and plasma membrane integrity by hypo-osmotic swelling test (HOS) were evaluated. All kinematic parameters of sperm motility were higher in F-T samples containing the whole in comparison to the clarified egg yolk. The sequence of semen collection affected sperm movement characteristics of native as...

Effect of Some Essential Oils on the Shelf Life of Whey

Jana Teplá, Květoslava Šustová, Táňa Lužová, Lenka Dostálová, Libor Kalhotka, Gabriela Růžičková

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 177-183 | DOI: 10.11118/actaun201664010177  

The aim of this work was to determine whether the addition of different herbal oils (anise, sweet basil, blue chamomile, clove, true cinnamon, common sage) into whey will extend its shelf life. Changes in pH, titration acidity and microbiological analysis of whey during storage life were chosen as parameters for monitoring of whey shelf life. Based on these analyses possibility of utilization of herbal oils has been confirmed for the purpose of extension of the lifetime of whey. The use of essential oils blue chamomile and common sage did not help to extend the shelf life of fresh whey. The treatment of whey by herbal essential oils anise, sweet basil,...

Leaf Spot Characteristics of Phomopsis Durionis on Durian (Durio Zibethinus Murray) and Latent Infection of the Pathogen

Veeranee Tongsri, Pattavipha Songkumarn, Somsiri Sangchote

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 185-193 | DOI: 10.11118/actaun201664010185  

A survey of leaf spot disease on durian caused by Phomopsis durionis was conducted in durian growing areas in eastern Thailand, Chanthaburi and Trat provinces. It was found that lesions with yellow halos on both mature and young leaves are variable in sizes (1-10 mm in diameter). In this study, nine morphologically distinct isolates of Phomopsis were obtained from durian leaf spots. Some of them produced small number of pycnidia on potato dextrose agar after incubation for 30 days. Artificial inoculation on wounded leaves of durian seedlings, resulted in the production of browning areas with yellow halos and pycnidium formation at 13...

Possibilities of Adhesives Filling With Micro-particle Fillers - Lap-shear Tensile Strength

Petr Valášek, Miroslav Müller

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 195-201 | DOI: 10.11118/actaun201664010195  

An adhesive bonding can be ranged among technologies of materials bonding which are used in all industrial branches. It plays its important role also in an area of the construction of agricultural machines, e.g. tractors, harvestors etc. Utility properties of adhesives can be extended by using various types of fillers. These fillers increase some mechanical characteristics of adhesives and not last they can decrease resultant price. The paper focuses on a possibility to fill the adhesives showing increased lap-shear tensile strength. These adhesives are used e.g. for adhesive bonding of coach bodies in an automotive industry so that is why it is possible...

Four Channel Assignment Schemes for WiFi in 2.4 GHz Band

Jiří Balej, Petr Zach, Martin Pokorný

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 205-211 | DOI: 10.11118/actaun201664010205  

Nowadays, WiFi is mostly operating in 2.4 GHz band, which allows only 3 non-overlapping channels. For deployment in building it could be a problem to repeat only three channels. In this paper we compare standard three channel scheme (channels 1, 6 and 11) with four channel schemes. The most promising scheme is with channels 1, 5, 9 and 13, which involves overlapping channels, but the overlap is minimal and in certain distances (power levels) is possible to use this scheme. The problem could be in some countries which do not allow usage of 13 channels. We also compare other schemes, with overlapping channels, but they have a much lower throughput than...

The Impact of the Public Support for R & D on the Economic Performance of SMEs

Ivana Blažková

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 213-222 | DOI: 10.11118/actaun201664010213  

The article is focused on evaluation of impacts of the project support for research, development and innovations on the economic performance of small and medium-sized enterprises. The set of analysed enterprises was composed of 182 SMEs operating in the Region of South Moravia in the Czech Republic, which were active in R & D in 2012 and 2013. There were evaluated public sources of funding for innovation activities and selected financial ratios of economic performance. The hypotheses about the relationship between the amount of public support and profitability of enterprises were set up and statistically tested. The analysis proved sufficient level...

Awareness of the Vysočina Regional Food Labels With Context of Their Media Presence

Martina Chalupová, Martin Prokop

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 223-234 | DOI: 10.11118/actaun201664010223  

The article presents results of research study that focused on the recognition of the Vysočina regional labels among the consumers in the region in connection with media analysis about the topic. Research among consumers was conducted in each district of Vysočina Region (Jihlava, Žďár nad Sázavou, Třebíč, Havlíčkův Brod and Pelhřimov) by interviewing a sample of 819 respondents, selected by quota sampling methods. The research was aimed at analysing the ability of respondents to recognise and differentiate two existing regional labels VYSOČINA Regional Product®, Regional Food Vysočina Region and also nonexistent brand From Our Region Vysočina,...

Corporate Insolvency Proceedings: A Case of Visegrad Four

Zuzana Crhová, Zuzana Fišerová, Marie Paseková

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 235-243 | DOI: 10.11118/actaun201664010235  

Insolvency proceeding and liquidation of bankrupt companies are important topics in days of economic slowdown which affected all economies after financial crisis. This paper aims to find main differences between insolvency proceedings in the countries of Visegrad four. The main goal is to describe insolvency law in member countries and then to compare it from the poin of view of main actors. This comparison can help to find which changes and ideas could be applied to improve and make more effective the Czech insolvency system. The countries of Visegrad four was selected because of their common history and similar economic development. First of all,...

Impact of Score Recalculation of Publication Evaluation on the Czech Higher Education Institutions

Martin Flégl, Igor Krejčí, Helena Brožová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 245-254 | DOI: 10.11118/actaun201664010245  

The evaluation of the publication outputs in the Czech Republic is based on the methodology from the Research, Development and Innovation Council. This methodology assigns a score to each output according to a various categories. The evaluation is carried out for 5 year-long sliding period. However, the assigned score for an output is published with more than a year delay. Moreover, the assigned score, in most of the cases, does not correspond with the scientists' first calculation, which was made according to the generally known rules. The impact of this issue on the chosen scientific organisations, Higher Education Institutions (HEIs), is the topic...

Stochastic Analysis of Profitability of the Pig Breeding Process

Ludvík Friebel, Jana Friebelová, Naděžda Kernerová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 255-264 | DOI: 10.11118/actaun201664010255  

This study deals with the economy of agricultural production, specifically in animal farming. The main goal is to find and apply an efficient simulation model of pig breeding process in order to investigate the impact of various changes in the production settings on the economy of a particular pig breeding. For this reason, it is necessary to take values given in the study as model ones. Costs at particular parts of the breeding process were used as the main simulation inputs, together with number of parities, length of farrowing interval, number of weaned piglets depending on a parity number, lactation length, and the gestation length of sows. Additional...

Impacts of Newly Acquired Items Within Business Combinations on the Items of the Financial Statements

Jana Gláserová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 265-274 | DOI: 10.11118/actaun201664010265  

This paper is focused on the operations with the company (business combinations). These are those operations that are associated with the formation or dissolution of companies or reorganization of their ownership structure. They are often referred as equity transactions. In the concept of Czech accounting legislation, these are the purchase, sale, investment (deposit) of firms or their parts, and various forms of transformation of enterprises. There are analyzed the accounting practices of recording of these issues under the Czech accounting legislation and International Financial Reporting Standards. Consequently there are identified newly acquired...

Disclosure of Subsidiaries with Non-controlling Interest in Accordance with IFRS 12: Case of Materiality

Tereza Gluzová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 275-281 | DOI: 10.11118/actaun201664010275  

Consolidated financial statements present aggregated information for parent company and its subsidiaries. For non-wholly owned subsidiaries, International Financial Reporting Standards require non-controlling interest to be presented within consolidated equity to distinguish it from the amount of equity attributable to the shareholders of the parent. Since 2014, new standards on consolidation introduced broadened disclosure requirements for subsidiaries with material non-controlling interest. Definition of material non-controlling interest however is not included in the standards. The article provides the analysis of the financial statements published...

Do Stock Markets Have Any Impact on Real Economic Activity?

Kateřina Krchnivá

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 283-290 | DOI: 10.11118/actaun201664010283  

There is no doubt about the existence of connection between the stock markets and the real economic activity. Many researchers indicated that the stock markets causally affect the economic activity with the lag of three months. Contrary, the other group of researchers suggested, that these relationships are reversal, moreover some of them concluded that these relationships are reciprocal. The paper analyses the relationship between the stock markets and the economic activity in seven countries with the research objective to identify these relationships in relation of cause and effect. As the proxy of the stock markets are stock indices considered,...

The Economic Analysis of Semi-mechanised Harvesting of Lemon Balm

Vladimír Mašán, Tomáš Kopta

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 291-296 | DOI: 10.11118/actaun201664010291  

In recent years area for cultivation of Melissa officinalis is ranged around 40 ha. Low production could be also caused by less intensive use of machinery. Aerial parts could be fully harvested by mechanisation, but in case of small growers using of special machinery is not economic. The majority of growers harvest manually and this type of harvest represents up to 80% of the costs associated with the cultivation. The less expensive alternative of harvest by a hedge trimmer is evaluated in this article. The goal is to compare two ways of harvest (manual harvest and hedge trimmer harvest) of lemon balm aerial parts in production practise. According...

Management of Resource Policy: How Mongolia Passes the Test

Jiří Mičánek, Petr Blížkovský

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 297-305 | DOI: 10.11118/actaun201664010297  

Mongolia is quickly changing nowadays. This is also thanks to discoveries of enormous mineral wealth. Copper, coal, iron ore and gold in particular are responsible for an amazing growth performance that Mongolia continues to demonstrate over the last decade. As literature demonstrates, large windfalls in natural resources revenues often turn into a curse in the long run, inspiring the term 'resource curse'. Resource abundant countries are often confronted with negative economic, social and political outcomes. Poor management of resource revenues is often the core of this problem.The article looks at the case of Mongolia. It runs eight tests related...

Data Envelopment Analysis for Technological, Environmental and Economic Analysis of Motorway Underpasses

Kateřina Myšková, Jaroslav Žák

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 307-314 | DOI: 10.11118/actaun201664010307  

Underpasses play an important role in ensuring permeability of line traffic structures (motorways, expressways) for feral species. There are many studies, articles and methodological guidebooks available describing proper design principles for technical parameters of underpasses and their placement within the terrain. Width, height and length are the main technical parameters affecting wildlife migration. Wildlife behaviour and their requirements for the mentioned technical parameters of underpasses also have been examined in depth. In practically all cases, underpass functionality grows with increasing width and height. Of course, this also results...

Effects of Oil Price Shocks on the Ghanaian Economy

Dennis Nchor, Václav Klepáč, Václav Adamec

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 315-324 | DOI: 10.11118/actaun201664010315  

The economy of Ghana is highly vulnerable to fluctuations in the international price of crude oil. This is due to the fact that oil as a commodity plays a central role in the economic activities of the nation. The objective of this paper is to investigate the dynamic relationship between oil price shocks and macroeconomic variables in the Ghanaian economy. This is achieved through the use of Vector Autoregressive (VAR) and Vector Error Correction (VECM) models. The variables considered in the study include: real oil price, real government expenditure, real industry value added, real imports, inflation and the real effective exchange rate. The study...

Prediction of Oil Depletion in Ghana Based on Hubbert's Model

Dennis Nchor, Václav Klepáč

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 325-331 | DOI: 10.11118/actaun201664010325  

This study seeks to fulfil four specific tasks: to predict the year of peak oil production in Ghana, to estimate the quantity that will be produced at this peak point, to investigate the year of total oil depletion and last but not the least is to assess the total recoverable oil resources at the point of depletion. The study applied Hubbert's model of oil production and depletion. There was however modification to the approach in that Nonlinear Least Squares were used to estimate the logistic growth parameter instead of linear regression techniques. The modification was due to the fact that the historical data of oil production in Ghana did not follow...

The Significance of Farm Size in the Evaluation of Labour Productivity in Agriculture

Martina Novotná, Tomáš Volek

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 333-340 | DOI: 10.11118/actaun201664010333  

The paper deal with the analysis of difference in labour productivity of farms categorised according to their size, to determine if the set subsidy system influences labour productivity in the size groups of the farms. The source of data for enterprises analysis was the firms database, which contains accounting data of 926 farms with at least one employee. The observed data were from the 6 year period (2007-2012). The farms were divided, according to their size into four categories defined by the European Commission: micro, small, medium and large enterprises. The analysis of the labour productivity I based on the added value and labour costs revealed...

The Role of Human Resources Competency in Improving the Manager Performance

Parvaneh Rastgoo

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 341-350 | DOI: 10.11118/actaun201664010341  

This study was conducted with the aim of indicating the relationship between competency of human resources and performance of the managers of human resources working in different sections of Bushehr University of Medical Sciences and Medical Services. The method used in this study was practical in terms of objectives and descriptive-correlational in terms of data collection. In this study, the statistical population consisted of all the managers of different parts of Bushehr University of Medical Sciences and Medical Services including 257 individuals. Among these individuals, 149 persons were chosen as the sample size using the Morgan table and the...

How to Avoid the Usual Price Rule on the Fuel Market in the Czech Republic

Pavel Semerád

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 351-355 | DOI: 10.11118/actaun201664010351  

The paper deals with value added tax evasions on the fuel market in the Czech Republic. This commodity is used in carousel fraud. In the chains of taxpayers there are missing traders who fail to meet their tax obligations. Their business strategy is based on quick sales at unusually low prices which do not allow honest parties to compete. Tax administrators should focus on unusual prices which constitute a higher probability of tax evasions. This paper aims to verify whether or not there are ways to evade the measure, focusing specifically on applying methods which could help achieve lower sales prices while avoiding the possibility to require unpaid...

Greenery of Urban Conservation Zones - a Component for Preservation of Monuments Authenticity

Eva Sojková, Petr Šiřina

Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(1), 357-364 | DOI: 10.11118/actaun201664010357  

The work deals with the criteria determination of qualitative rating of greenery as the basis for the protection and regeneration of greenery in areas with monumental values - urban conservation zones. Attention was turned to analysing the previous development of the whole territory as well as individual components (function, position in the settlement structure, ground plan shape, composition, architectural style of buildings, traffic arrangement, utilization). Selected urban conservation zones of Central Bohemian and Moravian-Silesian Region were used as model areas for verification. We present the results of a qualitative rating of their current...