Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2021 (vol. 69), issue 3
Modeling the Growth of Lambs in the Early Stages of Postembryonic Development
Natalia Nezhlukchenko, Anatolii Polevoi, Tetiana Nezhlukchenko
Acta Univ. Agric. Silvic. Mendelianae Brun. 2021, 69(3), 311-318 | DOI: 10.11118/actaun.2021.026 
Improving the efficiency of the sheep industry is based not only on additional investments, but also on the use of modern methods of breeding and selection. A significant role is given to modeling and forecasting processes in sheep breeding. The article is devoted to the development of a model for the growth and development of lambs in the first months of their post-embryonic period, which contains a system of equations describing the energy, protein and nutritional needs of animals. This model takes into account the influence of environmental factors on the growth and development of lambs and the features of the formation of future productivity.
Influence of Distillers Dried Grains With Solubles on Quail Meat Productivity
Anastasiia Plyska, Ildus Ibatullin, Mykhailo Sychov
Acta Univ. Agric. Silvic. Mendelianae Brun. 2021, 69(3), 319-326 | DOI: 10.11118/actaun.2021.029
One of the priority tasks of the agro-industrial complex in the modern world is to increase agricultural animal productivity and maximize the use of various processing byproducts in their feeding. Therefore, the experiment has been conducted to determine the influence of distillers dried grains with solubles as a part of feed mixtures on young quail meat productivity. To carry out the experiment, 5 groups, 100 quail heads in each, have been formed. Quails in the control group 1 did not receive distillers dried grains with solubles as a part of their feed mixture. Quails in the experimental groups 2, 3, 4 and 5 were fed by, respectively, 5%, 10%, 15%,...
Evaluating the Management Success of an Alien Species Through Its Hunting Bags: The Case of the Sika Deer (Cervus Nippon) in the Czech Republic
Laura Saggiomo, Bruno Esattore, Ludĕk Barto�
Acta Univ. Agric. Silvic. Mendelianae Brun. 2021, 69(3), 327-336 | DOI: 10.11118/actaun.2021.030
Alien mammal species have a very long history of anthropogenic introductions and have been extensively studied due to their severe impact on native biodiversity and ecosystems. One of the most detrimental species is the sika deer (Cervus nippon), a native Asian deer that has settled in several districts of the Czech Republic and has widely colonized the area with increasing population numbers. In this study we aimed to investigate the trend of the number of sika deer culled in the country between 1994 and 2018, and to highlight limits and flaws in the current management and hunting strategy. We identified three hunting subpopulations based on both...
Potential Factors Limiting Brown Trout Catches by Anglers - A Case Study
Tom� Zapletal, Lud�k �lapansk�, Jan Grmela
Acta Univ. Agric. Silvic. Mendelianae Brun. 2021, 69(3), 337-343 | DOI: 10.11118/actaun.2021.031
In recent years, the numbers of native brown trout caught by anglers has declined throughout the Czech Republic. In this study, we focus on individual factors potentially related to this negative trend, based primarily on long-term angling catch data (2000-2020) for twenty fishing grounds of the Czech and Moravian angling unions covering twelve upland trout streams. The results indicate that angling pressure, expressed as annual number of attendances, is the most important factor in the decline of trout populations, with drought caused by climate change as a secondary factor. There is a clear need for changes in current fisheries management practice,...
The Impact of Brand on Consumer Preferences of Milk in Online Purchases: Conjoint Analysis Approach
��rka Vel�ovsk�, Fridrik Rafn Larsen
Acta Univ. Agric. Silvic. Mendelianae Brun. 2021, 69(3), 345-356 | DOI: 10.11118/actaun.2021.032
The aim of the paper is to determine preferences of Czech consumers in online shopping of long-life semi-skimmed milk and to identify the importance of milk attributes in their online buying process, with focus on brand. Specifically, the study is focusing on: 1) identification of the importance of a brand in comparison with packaging, price and quality label in online purchases, 2) finding milk with maximum utility for consumers, and 3) revealing the most preferred brand of milk when other attributes stay the same. Data were collected in September 2018 through an online survey, using full-profile conjoint analysis. A total of 185 respondents 18+ living...
Assessment of the Harlequin Ladybird's (Harmonia Axyridis) Resistance to the Most Commonly Used Active Substances in Insecticides
Aneta Ne�asov�, Eva Hrudov�, Marek Seidenglanz, Radovan Pokorn�
Acta Univ. Agric. Silvic. Mendelianae Brun. 2021, 69(3), 357-364 | DOI: 10.11118/actaun.2021.033
The objective of this study was to find out if useful insects - in this case, harlequin ladybirds (Harmonia axyridis) - are affected by plant protection products (PPP) to the same extent as pests and if this species shows any levels of resistance to chosen active substances in insecticides. Harlequin ladybirds were collected in selected localities during the 2019 vegetation season. Their resistance to active substances (lambda-cyhalothrin and thiacloprid in various concentrations) was then tested. In the thiacloprid test, the commercial formulation of Biscaya 240 OD was used. Testing was performed pursuant to the Insecticide Resistance Action Committee...
Fiscal Effect of VAT Control Statement - Case Study of the Czech Republic
Luk� Moravec, Jana Hinke, Monika Borsiczk�
Acta Univ. Agric. Silvic. Mendelianae Brun. 2021, 69(3), 365-377 | DOI: 10.11118/actaun.2021.034
This article first aims to identify the final fiscal amount of the VAT control statement in the selected region and then to transform it to determine the theoretical fiscal amount in the entire Czech Republic. The second goal is to identify a possible impact of VAT control statements on tax evasion. For this purpose, the following tools have been used: calls for submission of control statements, reasons to initiate inspection arising from matching the control statements, tax audits, and the process to remove tax doubts. Using the foregoing tools, the theoretical fiscal revenue is quantified and then compared with the VAT gap from 2015 to 2016. The...
Management Accountants' Professional Competences: Requirements In the Czech Republic and Poland. The Normative Approach and Business Practice
Bohumil Kr�l, Grzegorz Miko�ajewicz, Jaros�aw Nowicki, Libu�e �oljakov�
Acta Univ. Agric. Silvic. Mendelianae Brun. 2021, 69(3), 379-393 | DOI: 10.11118/actaun.2021.035
The aim of this paper is to ascertain, from the normative ("should be" - academic experts) and business practice ("is" - management accountants) perspective, whether and to what extent management accountants' competence requirements differ between the Czech Republic and Poland and if so, to indicate the reasons for such differences. Both groups of respondents, as well as both countries have they own specific characteristics, but also share some common qualities. All respondents emphasize an important role that management accountants play in modern companies and suggest the necessity of developing standards and requirements for this position. The study...
Thickness Analysis of Beech Stems Using Annual Rings
Michal Dani�, Jind�ich Neruda
Acta Univ. Agric. Silvic. Mendelianae Brun. 2021, 69(3), 395-402 | DOI: 10.11118/actaun.2021.036
This article deals with the evaluation of a thickness analysis on the vuts of beech wood using annual rings. The study was performed at the state enterprise Lesy SR, a branch plant in Smolenice on the territory of Forrest District Majd�n. In order to perform a thickness analysis of the beech logs, it was necessary to know the number of annual rings on the butt end and the number of annual rings on the small end. Based on these two quantities, it was necessary to derive the number of annual rings in the middle of the trunk. All these characteristics were related to the length of the stem and the thickness of the stem. The data set contained 1000 logs....
Investigation of the Sanitary State of Air and Refrigeration Equipment of Meat Processing Enterprises in Kazakhstan Using the Method of Metagenomic Analysis
Lazat Umiralieva, Anna Chizhayeva, Akniyet Ibraikhan, Cholponkul Avylov, Masimzhan Velyamov
Acta Univ. Agric. Silvic. Mendelianae Brun. 2021, 69(3), 403-416 | DOI: 10.11118/actaun.2021.037
Taking into account the appearance of "new pathogens", persistent and uncultivated microorganisms, increasing the resistance of modern strains of microorganisms to disinfectants, increasing their antibiotic resistance and ability to biofilm formation, there is a need to study the microbial community of refrigerating chambers at meat processing enterprises in modern conditions, which was the aim of this work. The study of sanitary condition of the refrigeration equipment of a meat processing plants of the Almaty region of Kazakhstan was carried out by classical methods of microbiology and metagenomic analysis. Methods of classical microbiology allowed...
The Effect of Planting Density and Number of Hand Weeding Times on Weeds Control and Relationship Between Morphological Characteristics With Content and Yield of Essential Oil of Satureja Hortensis L.
Abdolmalek Karimi, Ebrahim Gholamalipour Alamdari, Zinab Avarseji, Ali Nakhzari Moghaddam
Acta Univ. Agric. Silvic. Mendelianae Brun. 2021, 69(3), 417-426 | DOI: 10.11118/actaun.2021.039
The aim of this study was to evaluate the effect of planting density and number of weeding times on weeds control and the relationship between morphological characteristics with the content and yield of Satureja hortensis essential oil (EO). S. hortensis planting density at four levels (50, 75, 100 and 125 plants per m2) was the first factor and hand weeding in 4 times (2, 4, 6 and 8 weeks after planting- WAP), 3 times (2, 4 and 8 WAP), 2 times (4 and 8 WAP) and weedy check as second factor. Dominant weeds were included redroot pigweed (Amaranthus retroflex L.), black nightshade (Solanum nigrum L.) and lambsquarters (Chenopodium album L.)...
Impact of Claw Disorders in Dairy Cattle on Health, Production and Economics and Practicable Preventive Methods
Petra Neirurerov�, Peter Strap�k, Eva Strap�kov�, Peter Juh�s
Acta Univ. Agric. Silvic. Mendelianae Brun. 2021, 69(3), 429-442 | DOI: 10.11118/actaun.2021.038
Problems with claw disorders in dairy cattle herds are very typical and are among the most significant endemic cattle diseases. It is good to realize in what condition we keep the cattle - unsuitable floors and bed boxes, greasy microclimate, frequent movement between groups of animals, significant changes in the feed ration - all this affects the health of claws. Lameness and claw lesions have a great impact on production, welfare and health of dairy cows. They decreases milk yield, have a negative impact on reproductive traits and fertility performance and therefore lameness increases costs including medicine, detection of lameness, control and prevention,...