Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2020 (vol. 68), issue 3
Characteristics of Physical, Chemical, and Organoleptic Properties of Virgin Coconut Oil (VCO) By Studying the Ratio Between Coconut Cream with Inducement Oil and Length of Fermentation
Chairil Anwar, Irmayanti, Umar HA
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 473-482 | DOI: 10.11118/actaun202068030473 
Coconut agribusiness development plays an important role in an effort to increase productivity as a raw material for processed products from coconut. Indonesia is one of the world's largest coconut plantation. Unfortunately, Indonesia's exports are in the form of ordinary coconut oil, while Philippines has begun to reach the world with the Virgin Coconut Oil (VCO). However, there is still a lack of diversification that can be done by coconut farmers made its little progress. In fact, the price of VCO which tripled from coconut oil used to make the oil can be potential to be developed in Indonesia The purpose of this research was to examine the cream...
The Effect of Short Time Thermal Treatment on Swelling of Field Maple (Acer campestre L.) and Fir (Abies alba Mill.)
Holta �ota, Leonidha Peri, Entela Lato, Hektor Thoma, Doklea Quku, Laura Shumka
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 483-490 | DOI: 10.11118/actaun202068030483
From the immemorial time wood is highly abundant and well-performing material. Further one due to practical use the wood heat treatment, as a process for improving its properties has been enhanced in the recent tim. Abies alba Mill and Acer campestre L. are among the most wide spread species in Albanian forest and among the most useful types of wood in Albanian wood industry. The objective of this study is to investigate the influence of short time heat treatment on dimensional stability and the mass loss of these two species. Wood samples are treated in three different temperatures (180 ℃, 200 ℃, 220 ℃) and two different...
Effect of Nitrogen Fixing Bacteria and Nitrogen Rate on Yield and Growth of Common Bean
Somaye Fallahi, Peyman Sharifi
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 491-496 | DOI: 10.11118/actaun202068030491
To study the effects of nitrogen (N) rate and co-inoculation of nitrogen-fixing bacteria (Rhizobium phaseoli) on common bean, an experiment was performed in Rasht, Iran. Common bean genotype, Guilanian landrace, was planted in a factorial experiment based on a randomized complete block design with three replicates on April, 15th in 2014. The first and second factors were nitrogen rates (0, 30, 60, 90 and 120 kg.ha-1 as urea) and Rhizobium phaseoli (inoculation and un-inoculation), respectively. Nitrogen had significant effect on seed yield and plant height. The effect of Rhizobium phaseoli was significant on seed yield,...
Laboratory Evaluation of the Effect of Insecticides on Chrysoperla carnea (Neuroptera: Chrysopidae), Forficula auricularia (Dermaptera: Forficulidae), Adalia bipunctata (Coleoptera: Coccinellidae) and Harmonia axyridis (Coleoptera: Coccinellidae)
Kamil Hol�, Jitka Star�
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 497-506 | DOI: 10.11118/actaun202068030497
The effect of 8 biopesticides and 23 synthetic pesticides on the eggs and larvae of Chrysoperla carnea (Stephens, 1836), adults of Forficula auricularia Linnaeus, 1758, larvae of Adalia bipunctata (Linnaeus, 1758) and adults of Harmonia axyridis (Pallas, 1773) have been evaluated under laboratory conditions. All of the tested biopesticides were harmless (causing mortality < 30%) or only slightly harmful (causing mortality 30-79%) to the tested natural enemies. The tested synthetic fungicides were harmless or slightly harmful, with the exception of myclobutanil, which was moderately harmful (causing mortality 90-99%) to...
Soil Arthropods in Differently Used Agroecosystems Along an Ecological Gradient in Slovakia
Radoslava Kanianska, Jana Ja�u�ov�, Miriam Kizekov�, Jarmila Makovn�kov�, Bernard �i�ka, Jozef Varga, Nikola Benkov�
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 507-518 | DOI: 10.11118/actaun202068030507
Arthropods are part of important functional groups in soil and little is known about their composition in differently used agroecosystems across larger spatial scales. We analysed the qualitative and quantitative structure of soil arthropods with emphasis on ground beetles in different agroecosystems in relation to the various factors (soil physical properties) that Slovakia as a highly diversified country offers. Research was conducted in 4 different soil types (Arenosol, Cambisol, Fluvisol, Leptosol) at 6 study sites located in three different ecological zones with two different land use types (arable land - AL and permanent grasslands - PG). Ten...
Antioxidant Capacity, Total Phenolic Compounds and Fatty Acids Composition in Walnut Oil and Bagasse Pellets Produced at Different Parameters of the Screw Press
Tom� Kiss, Vladim�r Ma��n, Pavel H�c
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 519-527 | DOI: 10.11118/actaun202068030519
Different rotational speeds and nozzle diameters of screw press were used to process walnut kernels. To evaluate the influence of pressing conditions on the quality of walnut oil and bagasse pellets the oil pressing temperature, yield of oil, total phenolic compounds, antioxidant capacity and fatty acid composition were measured. The results show that the pressing at different conditions affected the antioxidant capacity and TPC of either bagasse pellets and pressed oil. Higher values of antioxidant capacity and TPC were measured in bagasse pellets than in pressed oils. Higher amount of pressed oil was yielded by using lower nozzle diameter, however,...
Effect of Variety, Sowing Date and Location on Yield and Nutritional Characteristics of Sorghum
Ivana Kol��kov�, Daria Baholet, Hana Abigail Gruberov�, Vladim�r Smutn�, Petr Elzner, Pavel Hork�, Ji�� Skl�danka, Michal R�bek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 529-537 | DOI: 10.11118/actaun202068030529
Sorghum is a forage species important in animal nutrition with an increased potential in the upcoming difficulties in agricultural practices in regard to climate change. Therefore, this paper describes its yield and nutritional parameters depending on growing conditions simulated on two locations (humid and fertile Obora, less fertile and dry P�sky), two sowing dates (29. 5. and 25. 6.), and variety (11 varieties). Fresh matter yield was determined by weighing the sample on the field immediately after harvest, Dry matter yield and nutritional content were determined in laboratory by Weende analysis from dried and homogenized samples. Nutritional parameters...
Factors Determining Survivability Traits of Charollais, Kent Lambs, and their Crossbreds During Rearing
Ane�ka M�lkov�, Martin Pt��ek, Lud�k St�dn�k, Jarom�r Duch��ek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 539-549 | DOI: 10.11118/actaun202068030539
The aim of this work was to evaluate the effect of birth weight on the survival of Charollais, Kent and their crossbreds in breeding and also on their meat performance for Charollais and Kent lambs. Data were evaluated for the six years period in the commercial flock. The total number of lambs used for evaluation was 1,197. The data were passed through the SAS STAT program using the MIXED method. In the model equation, all the dependent variables of the survival indicator were significantly statistically detectable with a significance level of P < 0.01. The results indicated that survivability lambs was significantly influenced by birth weight and...
Effect of Bio-Enzymatic Preparation on Water Quality in Ponds and on Quantity and Quality of Fishpond Sediments
Barbora M�llerov�, Marija Radoji�i�, Radovan Kopp, Jan Grmela, Michal �orf, Eva Po�tulkov�
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 551-557 | DOI: 10.11118/actaun202068030551
The aim of this study was to evaluate the ability of a bacterial-enzymatic preparation to affect water quality, particularly the composition and the amount of sediments in ponds. The PTP Plus preparation was applied during the year 2016. For evaluation of the possible effects of the preparation, the water and sediment was compared in the growing seasons 2016 and 2017. When monitoring the sediment loss, a difference ranging from 72 to 86 mm was measured. There was an increase in the level of conductivity, alongside with an increase in the amount of calcium and chlorides in the water. In the case of the sediment, there was an increase in the amount of...
Comparison of LiDAR-based Models for True Leaf Area Index and Effective Leaf Area Index Estimation in Young Beech Forests
Zden�k Pato�ka, Kate�ina Novosadov�, Pavel Haninec, Radek Pokorn�, Tom� Mikita, Martin Klim�nek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 559-566 | DOI: 10.11118/actaun202068030559
The leaf area index (LAI) is one of the most common leaf area and canopy structure quantifiers. Direct LAI measurement and determination of canopy characteristics in larger areas is unrealistic due to the large number of measurements required to create the distribution model. This study compares the regression models for the ALS-based calculation of LAI, where the effective leaf area index (eLAI) determined by optical methods and the LAI determined by the direct destructive method and developed by allometric equations were used as response variables. LiDAR metrics and the laser penetration index (LPI) were used as predictor variables. The regression...
The Effect of Farming System Type on Piglet Production
Kamila Pokorn�, Jaroslav ��tek, Kate�ina Zadinov�, Monika Okrouhl�, Nicole Lebedov�, Roman Stupka
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 567-572 | DOI: 10.11118/actaun202068030567
Reproductive performance of sows is the main factor influencing the profitability of piglet production, and simultaneously it is a basic indicator of farm management quality. The aim of this study was to compare reproductive performance of sows from intensive and extensive feeder pig operations and the costs on those farms. Evaluated were 42 sows from extensive pig farming and 464 sows from intensive pig farming. Lifelong performance was determined for all sows. The study's results show that sows from intensive pig farming achieved a mean 2.04 fewer lactations per lifetime and were culled earlier (P < 0.0001). The mean total number of live-born...
Comparative Study of Pregnancy Rate of Dairy Cows Inseminated with Fresh or Frozen-Thawed Semen
Jan Pytl�k, Lud�k St�dn�k, Jarom�r Duch��ek, Radim Codl
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 573-581 | DOI: 10.11118/actaun202068030573
The aim of this study was to investigate conception rates (CR) achieved with artificial insemination of Holstein cows using fresh or frozen insemination doses (ID). The synchronization protocols (Double-Ovsynch, Ovsynch, ReSynch) and pedometers were used to secure proper timing of artificial inseminations (AI). Total of 3979 inseminations data were recorded. Statistical analysis was performed using the SAS 9.3 package. For the evaluation of a CR, the effects of ID type, season, year, sire breed, lactation number and oestrus detection type, were analysed. Cows inseminated with fresh ID performed higher CR (+4.86%; P < 0.05). Best pregnancy per artificial...
Product Elimination in German Industrial Companies: A Comparison Study with US and UK Industrial Companies
Christina Bauer, Jana Tur��nkov�
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 585-596 | DOI: 10.11118/actaun202068030585
This paper focuses on the product elimination in German industrial companies, especially in the mechanical engineering sector. The Product Life Cycle (PLC) theory is based on the typical curve, which shows the different stages a product experiences over the time. The last stage, the so-called decline or elimination phase, is characterized with decreasing sales figures, low market share and shrinking profits. Therefore, it sounds logical that such products should be eliminated. This study is analyzing if these indicators really are the only reasons to start the elimination process of a product, or if there are other reasons triggering this decision...
The Relationship Between Production and Consumption of Alcohol and its Taxation in the EU Countries
Petr David, Lucie Formanov�, Adam Lisick�, Krist�na Torko�ov�, Michaela Vetr�kov�
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 597-604 | DOI: 10.11118/actaun202068030597
The taxation of alcoholic beverages in the EU member states varies despite the harmonization efforts. This situation has been caused by the relatively liberal tendencies in tax policies concerning the determination of excise duties on alcohol and alcoholic products. The main goal of the present research is to identify the relationship between the taxation of spirits, beer and wine on the one hand, and the production and consumption on the other hand. This dependence is examined through the correlation analysis of the degree of taxation and production/consumption. The highest values of negative correlation have been identified between the taxation and...
Modelling Household Car Ownership in the Selected Regions of the Czech Republic
Martina �ampulov�, Roman �ampula
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 605-612 | DOI: 10.11118/actaun202068030605
Car ownership models are essential for forecasting transport demand as well as for addressing the resulting impacts of traffic emissions and appropriate measures. The paper presents the multinomial logit model for the selected regions of the Czech Republic analysing the relationship between household car ownership and household characteristics such as household income, number of household members and number of children. The model was applied to data collected by questionnaire survey conducted in two Czech cities Litom��ice and P�sek in the years 2017 and 2019. In total, three car ownership categories were specified: one car, two cars, three and more...
Modeling Cause and Effect Relationships of Strategy Map Using Economic and Social Performance Factors in the Organizational Culture
Jana Hornungov�, Kate�ina Petrov�, Franti�ek Milichovsk�
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 613-624 | DOI: 10.11118/actaun202068030613
The paper deals with the possibility to use a strategy map as a tool for the management of a company's strategy. The objective of the paper is to introduce performance factors that are included in the map, playing an important role in the evaluation of economic and social indicators. According to defined factors we stated the performance model with a focus on three important corporate perspectives such as economic, working environment, and the local community. These perspectives are considered such an important part of the strategic management of the business and can help an organization to define and assess progress towards the attainment of its objectives....
Non-Financial Reporting of Industrial Corporations - A Czech Case Study
Jaroslav Sedl��ek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 625-636 | DOI: 10.11118/actaun202068030625
Scientific research and studies from recent years point to the growing interest of large multinational corporations in publishing reports that inform the public not only about their performance, but also about their behavior in terms of social responsibility and long-term sustainability. These are not only effects in the context of their success, but also the negative impacts of their environmental, social and administrative activities. Although corporate responsibility reporting integrating financial and non-financial information is becoming a standard practice, these approaches have not yet been investigated or published in the Czech region. Therefore,...
Industry 4.0: an Employee Perception (Case of the Czech Republic)
Nikola Soukupov�, Mark�ta Adamov�, R��ena Krninsk�
Acta Univ. Agric. Silvic. Mendelianae Brun. 2020, 68(3), 637-644 | DOI: 10.11118/actaun202068030637
Considering the fact that the initiative Industry 4.0 started in the Czech Republic in 2016, it is still a relatively unexplored topic. However, there is a significant lack of researches, which examines the perception of Industry 4.0 by employees whose jobs are directly threatened by Industry 4.0. The aim of the paper was found out how Czech employees perceive Industry 4.0 and whether a general pattern can be created for a group of employees who perceive it as a potential threat to their existence based on their characteristics (age, gender, education, and the job position). Information about this initiative is often tendentiously presented by media,...