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Results 211 to 240 of 311:

Evaluation of the efficiency of selected wastewater treatment plant

Tomáš Vítěz, Jana Ševčíková, Petra Oppeltová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2012, 60(1), 173-180 | DOI: 10.11118/actaun201260010173

Impact of fish pond manuring on microbial water quality

Hana Mlejnková, K. Sovová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2012, 60(3), 117-124 | DOI: 10.11118/actaun201260030117

The influence of changes to abiotic parameters on the fish assemblage structure of a lowland stream

Tomáš Vítek, R. Kopp, J. Mareš, T. Brabec, P. Spurný

Acta Univ. Agric. Silvic. Mendelianae Brun. 2012, 60(3), 207-216 | DOI: 10.11118/actaun201260030207

Assessment of nutritional parameters of native apple cultivars as new gene sources

Josef Balík, Otakar Rop, Jiří Mlček, Pavel Híc, Miroslav Horák, Vojtěch Řezníček

Acta Univ. Agric. Silvic. Mendelianae Brun. 2012, 60(5), 27-38 | DOI: 10.11118/actaun201260050027

Reverse logistics and 3PL in the Czech Republic

Alena Klapalová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2012, 60(7), 163-170 | DOI: 10.11118/actaun201260070163

Vliv teploty a chemického složení na viskozitu moravských vín

Miroslav Havlíček, Libor Severa, Ivo Křivánek

Acta Univ. Agric. Silvic. Mendelianae Brun. 2007, 55(1), 59-64 | DOI: 10.11118/actaun200755010059

Standard chemical analysis was performed to characterise six samples of bottled wines from South Moravia. Temperature influence (range from 20 °C to 50 °C). Density data processing led to determination of the expansibility coefficients at 25 °C and their temperature dependence. It was found that, viscosity of wine decreases non-linearly with increasing temperature. Fitting of the experimental data in some theoretical models was performed in order to describe the temperature dependence of the viscosity of wine. A modified Andrade equation was found to best describe this dependence. The activation energy for viscous flow of wine, calculated by Arhenius relation, varied from 18.50 kJ.mol-1 to 20.15 kJ.mol-1. Correlations between the activation energy for viscous flow and the concentrations of solutes other than ethanol were estimated.

Reasonability of wine investment in the Czech Republic

Tomáš Lintner

Acta Univ. Agric. Silvic. Mendelianae Brun. 2012, 60(2), 181-188 | DOI: 10.11118/actaun201260020181

The effect of urea and urea with urease inhibitor on the content of macronutrients in tubers and tops of potatoes (Solanum tuberosum L.)

Ludmila Musilová, Tomáš Lošák, Jaroslav Hlušek, Monika Vítězová, Miroslav Jůzl, Petr Elzner, Radek Filipčík, Miroslav Jůzl, Eduardo Bennewitz

Acta Univ. Agric. Silvic. Mendelianae Brun. 2012, 60(5), 167-172 | DOI: 10.11118/actaun201260050167

Strategic options for newly entering companies into the wine sector in the Czech Republic

Radka Šperková, Renata Skýpalová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2012, 60(7), 387-398 | DOI: 10.11118/actaun201260070387

VÝNOS A KVALITA LNU SETÉHO OLEJNÉHO (LINUM USITATISSIMUM L.) V RŮZNÝCH PĚSTITELSKÝCH PODMÍNKÁCH

Tomáš Středa, Marie Bjelková

Acta Univ. Agric. Silvic. Mendelianae Brun. 2007, 55(1), 153-164 | DOI: 10.11118/actaun200755010153

The aim of this study was on the basis of the field experiment in two different agroclimatic localities, two planting options (low and high input) and during three years find out the seed yield, seed oil content and composition of fatty acid in linseed oil (Linum usitatissimum L.), variety Lola (LinolaTM). By the help of standard laboratory analyses for paint parameter evaluation judge suitability of using the oil for painting industry. Linseed yield varied from 0.29 t.ha-1 to 2.35 t.ha-1. Statistical significant differences (P = 0.01) were found out for localities, years and planting options. Average seed oil content varied from 36.6% to 44.0%. Influence of locality was not significant, influence of year and planting option to seed oil content was highly significant (P = 0.01). Content of linoleic acid in oil was influenced mainly by locality and planting option and varied from 75.86% to 76.78%. Laboratory painting-technological evaluation of oils and alkyd resin experimental sample made for suitability of using low linolenic oil of linseed, variety Lola for production of non-yellowing alkyds and enamels.

Niektoré ukazovatele obsahu chemických látok v mäse a kostiach brojlerov kŕmených dietou obsahujúcou Lactobacillus species zo sušeného jogurtu

Amjad Arshad Abdulwahab, Erika Horniaková

Acta Univ. Agric. Silvic. Mendelianae Brun. 2010, 58(2), 13-18 | DOI: 10.11118/actaun201058020013

The effect of dried yogurt (Kashik) based on Lactobacillus plantarum and Lactobacillus acidophilus on broiler meat crude protein and fat content and tibial bone mineral composition was studied. The birds were fed diets including probiotics only during the first 21 days of age. The trial groups T1, T2 and T3 were supplied with 1, 3 and 5 % Yoghurt, respectively. The control group was fed with a commercial feed mixture. Breast muscules nutrition quality was not significantly affected (P > 0.05) with Kashik up to day 21. The highest difference was 0.25% (C and T3) in crude protein content and 0.15% in crude fat (C and T2). Also, leg muscles crude protein and fat percentages were not affected by probiotics up to day 21 of age. The values varied from 18.76 to 19.24% and from 5.77 to 6.54% respectively. However, significant differences (P < 0.05) in legs' muscles crude protein (19.05 and 19.92% in C and TI group) and fat contents (4.82 and 6.33%) were observed between the T1 and T3 group up to 40 days of age. No significant effects of probiotics were observed on breast muscles mineral content up to 21 days and 40 days of age. Leg muscles mineral contents were not affected with probiotics up to 21 days, whereas up to 40 days only leg muscles P and Mg content was affected (1.80 and 1.61 g.kg-1 of P in C and T3 group and 0,42 and 0,44 g.kg-1 in C and T1, in Mg, resp.). There were no significant effects of treatments on tibial bone Ca and Mg contents up to day 21. However, tibial bone P content was significantly affected. The addition of 3 and 5 percents of Kashik increased tibial bone P content significantly (98.5g.kg-1 in T2, 97.0g.kg-1 in T3) above the value of the control group (80.5g.kg-1) up to 21 days of age. There were no significant differences between treatment groups and the control group in tibial bone P and Mg composition at day 40 of age. The values varied from 86.00 to 93.12% in C and T1 in P and 4.10 to 4.23g.kg-1 in Mg content. Some significant differences were observed between the treatment group which was supplemented with 1% of Kashik and the control group in tibial bone Ca composition at day 40 of age (213.62 and 229.06g.kg-1, resp.).

VALIDACE METOD PRO STANOVENÍ OBSAHU VOLNÉ VODY V DRŮBEŽÍM MASE

Jarmila Žítková, Jana Simeonovová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2007, 55(2), 105-118 | DOI: 10.11118/actaun200755020105

Methods for determination of free water content in poultry meat are described in Commission Regulation EEC No 1538/91 as amended and in ČSN 57 3100. Two of them (method A and D) have been validated in conditions of a Czech poultry processing plant. The capacity of slaughtering was 6000 pieces per hour and carcasses were chilled by air with spraying. All determinations were carried out in the plant's lab and in the lab of the Institute of Food Technology. Method A was used to detect the amount of water lost from frozen chicken during thawing in controlled conditions. Twenty carcasses from six weight groups (900 g-1400 g) were tested. The average values of thaw loss water contents ranged between 0.46% and 1.71%, the average value of total 120 samples was 1.16%. The results were compared with the required maximum limit value of 3.3%. The water loss content was in negative correlation with the weight of chicken (r = -0.56). Method D (chemical test) has been applied to determine the total water content of certain poultry cuts. It involved the determination of water and protein contents of 62 representative samples in total. The average values of ratio of water weight to proteins weight WA/RPA were in breast fillets 3.29, in legs with a portion of the back 4.06, legs 4.00, thighs 3.85 and drumsticks 4.10. The results corresponded to the required limit values for breast fillets 3.40 and for leg cuts 4.15. The ratio of water weight to proteins weight WA/RPA was correlated with the weight of chicken for breast fillets negatively (r = -0.61) and for leg cuts positively (r = 0.70). Different correlations can be explained by the distribution of water, protein and fat in carcasses. The evaluation of methods in the parameter of percentage ratio of the average value to the limit showed that method D (results were at the level of 97% of the limit) was more exact than method A (results were at the level 32% of the limit) but it is more expensive. Both methods were tested with the same technological equipment and at the same time. As far as the validation is concerned, it can be concluded that no substantial modification of methods is necessary.

Estimation of the competitive conditions in the Czech banking sector

Daniel Stavárek, Iveta Řepková

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(2), 299-306 | DOI: 10.11118/actaun201159020299

Efficiency of the building societies in the Czech Republic

Lukáš Leksovský, Daniel Stavárek

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(4), 143-150 | DOI: 10.11118/actaun201159040143

PŘÍSTUP KONCEPTU SOLVENCY II K ŘÍZENÍ RIZIK V KOMERČNÍCH POJIŠŤOVNÁCH

Eva Vávrová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2010, 58(3), 261-270 | DOI: 10.11118/actaun201058030261

In the year 2001, the European Comission started to revise the legislation Solvency I and to implement a new approach called Solvency II. The regulation called Solvency II is based on regulation considering management of risks of commercial insurance companies. Changes on financial markets and the contemporary financial crisis made financial authorities to formulate principles of regulation based on risk management. Commercial insurance companies across Europe will face a considerable amount of work to be ready for requirements related with Solvency II implementation in the year 2012.
Rating agencies, regulators and investors today are demanding that insurers provide detailed assessments of their risk tolerance and quantify the adequacy of their economic capital. To complete such assessments requires a credible baseline for underwriting volatility. Modern portfolio theory for assets teaches that increasing the number of stocks in a portfolio will diversify and reduce the portfolio risk, but will not eliminate risk completely, the systemic market risk remains. In the same way, insurers can reduce underwriting volatility by increasing account volume, but they cannot reduce their volatility to zero. A certain level of systemic insurance risk will always remain, due to factors such as for example the underwriting cycle, macroeconomic factors, legal changes and weather.
This presented scientific paper focuses on an analysis of specific goals of the regulation Solvency II and the structure of second pillar of the three-pillar construction (similarity with Basel II banking regulation) of Solvency II. The paper was written as part of research project MSM 6215648904, carried out by the Faculty of Business and Economics, under the title "The Czech Republic in the processes of integration and globalization, and the development of the agriculture and service sector in the new conditions of the integrated European market", following the goals and methodology of the research project.

Experiences with preventive procedures application in the process of beer production in Czech Republic

Jana Kotovicová, František Toman, Magdalena Vaverková

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(6), 189-198 | DOI: 10.11118/actaun201159060189

Effects of direct investments on the regional development

Gabriela Chmelíková, Radka Redlichová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2012, 60(7), 119-126 | DOI: 10.11118/actaun201260070119

The changes of flavour and aroma active compounds content during production of Edam cheese

Eva Vítová, Radka Mokáňová, Libor Babák, Jana Zemanová, Kateřina Sklenářová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(1), 255-262 | DOI: 10.11118/actaun201159010255

Incomes of rural and non-rural households in the Czech Republic

František Střeleček, Radek Zdeněk

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(4), 319-326 | DOI: 10.11118/actaun201159040319

Effects of the technolology of machining on the surface quality of selected wood

Michal Svatoš, Zdeněk Kopecký, Miroslav Rousek

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(6), 329-336 | DOI: 10.11118/actaun201159060329

Preferences of men and women in the Czech Republic when shopping for food

Jana Turčínková, Jana Brychtová, Jiří Urbánek

Acta Univ. Agric. Silvic. Mendelianae Brun. 2012, 60(7), 425-432 | DOI: 10.11118/actaun201260070425

Forestry adaptation measures at the decline of Norway spruce (Picea abies Karst.) stands as exemplified by the Silesian Beskids, Czech Republic

Petr Čermák, Otakar Holuša

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(1), 293-302 | DOI: 10.11118/actaun201159010293

The analysis of individual Visegrad group members' agrarian export sensitivity in relation to selected macroeconomic aggregations

Miroslav Svatoš, Luboš Smutka

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(4), 327-342 | DOI: 10.11118/actaun201159040327

Effect of sweet yeast bread formula on evaluating rapid mix test

Petra Dvořáková, Jindřiška Kučerová, Stanislav Kráčmar

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(5), 39-46 | DOI: 10.11118/actaun201159050039

Entrepreneurship within health care - a dilemma of identity and profession

Jarmila Šebestová

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(7), 423-430 | DOI: 10.11118/actaun201159070423

The conception "an enterprise as a microcivilization"

Svitlana L. Blagodietielieva-Vovk

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(2), 35-42 | DOI: 10.11118/actaun201159020035

Study of changes organic acids in red wines during malolactic fermentation

Jindřiška Kučerová, J. Široký

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(5), 145-150 | DOI: 10.11118/actaun201159050145

The influence intenzity of eutrophication on fishpond yield

Tomáš Brabec, Lucie Straková, Radovan Kopp, Tomáš Vítek, Jan Šťastný, Petr Spurný, Jan Mareš

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(6), 53-62 | DOI: 10.11118/actaun201159060053

Employee benefits or wage increase?

Jiří Duda

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(2), 65-68 | DOI: 10.11118/actaun201159020065

Assessment of ranges plasma indices in rainbow trout (Oncorhynchus mykiss) reared under conditions of intensive aquaculture

Radovan Kopp, Jan Mareš, Štěpán Lang, Tomáš Brabec, Andrea Ziková

Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(6), 181-188 | DOI: 10.11118/actaun201159060181

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