Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2009 (vol. 57), issue 5
Vliv způsobu kulinární úpravy na in vitro stravitelnost u vybraných luštěnin
The effect of cooking on in vitro digestibility of selected legumes
Ranjani Amarakoon, Stanislav Kráčmar, Ignác Hoza, Pavel Budinský
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 13-18 | DOI: 10.11118/actaun200957050013 
The aim of this study was to investigate the effect of various cooking methods on nutritional quality by evaluating in vitro digestibility of some selected legumes (two cultivars Pisum sativum and Glycine max). Samples were soaked in 0.2% NaHCO3 for 6 hours and then cooked by normal (20, 25, 30 and 35 min) pressure (8, 10, 12 and 14 min) and microwave (8, 10, 12 and 14 min) cooking. In vitro protein and dry matter digestibility were investigated. Pressure cooking and microwave cooking are recommended after soaking with the cooking time between 8-14 mins for P. sativum (Xantos and Svit) and G. max....
Vyhodnocení produkce mléčného tuku a bílkovin inbredních a outbredních holštýnských krav
Evaluation of milkfat and milkprotein production in inbred and outbred Holstein cows
Jiří Bezdíček, Jan Šubrt, Radek Filipčík, Jan Říha
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 19-26 | DOI: 10.11118/actaun200957050019
The aim of this study was to explore the depression effects of level of inbreeding on kg of fat and protein presented in the form of breeding values. The data included cows calved in the years 1990-2006 at farms in the Czech Republic. Inbred cows were grouped according to Fx coefficients (Fx = 1.25%, Fx = 2.0-3.125%, Fx = 4.0-12.5% and Fx = total). The breeding values for inbred cows were compared with their outbred equals (2689 equals in sum) - half-sisters, sharing the same sire, dam reaching the same breeding value (± 5%) and their first calving occurring at the same farm, at the same...
ANALÝZA DÉLKY BŘEZOSTI PŘI VÍCEČETNÝCH PORODECH U ČESKÉHO STRAKATÉHO A HOLŠTÝNSKÉHO SKOTU
Analysis of pregnancy length in multiple births in Czech Fleckvieh and Holstein cattle
Jiří Bezdíček, František Louda
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 27-32 | DOI: 10.11118/actaun200957050027
In the work we have evaluated multiple births (calving between the years 1992 and 2003) in Czech Fleckvieh and Holstein cattle. We have compared the length of pregnancy in case of twins and triplets with the length of pregnancy of the same cow during the previous lactation when only one calf was born. Total number of observed multiple births of both strains was 686 cases - including 508 births of twins and 178 births of triplets. Mathematical statistical procedures have been made by standard mathematical methods using a SPSS 15.0 for Windows, Release 15.0.0 (6 Sep 2006) program. The results we have reached showed a significant (P ≤ 0.01) decrease...
VLIV PARAZITOCENÓZ NA ZDRAVOTNÍ STAV POPULACE JELENA SIKY (Cervus nippon) V ZÁPADNÍCH ČECHÁCH
The parasitecoenoses' influence on health status of sika-deer (Cervus nippon) population in the west-Bohemia region (Czech Republic)
Marie Borkovcová, Jan Dvořák, Tomáš Martin
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 33-40 | DOI: 10.11118/actaun200957050033
The aim of this study was detection of prevalence of the parasitecoenoses of sika deer (Cervus nippon) living in the wild in the area of Western Bohemia (Czech Republic) and to compare roundup data with results from previous investigations.All together 560 samples of excrements and 8 grallochs were examined. The research was done from March 2005 to June 2007. The samples of excrements were collected during the whole research period in periodical monthly intervals always in the amount of 20 pieces. Grallochs were examined by partial helmintological dissection, the samples of excrements by Baermann method and flotation. Parasites were detected...
VLIV PŘÍDAVKU PROBIOTICKÉHO KMENE L. casei 01 NA KONCENTRACI BIOGENNÍCH AMINŮ VE FERMENTOVANÝCH SALÁMECH HERKULES
The influence of probiotic strain L. casei 01 on biogenic amines concentrations in fermented sausages Herkules
Radka Burdychová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 41-48 | DOI: 10.11118/actaun200957050041
In this work, the influence or probiotic strain L. casei 01 (Sacco, Italy) on biogenic amines concentrations during fermentation, ripening and storage of fermented sausages "Herkules" was studied. Two amounts of probiotic culture were added into sausages, 0,25 % and 0,40 %, respectively. Negative controls without probiotic were also made. Dry sausages were taken from two different producers (A, B). Determination of biogenic amines tyramine, histamine, putrescine and cadaverine concentration was used using HPLC method with UV detection. The content of biogenic amines was monitored during fermentation (0-28 days) and storage (28-49) of fermented...
Studium enterokoků a jejich role v produkci tyraminu během výroby a zrání polotvrdých sýrů
Study of enterococci during cheese manufacture and ripening and evaluation of their role in tyramine production
Radka Burdychová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 49-56 | DOI: 10.11118/actaun200957050049
The aim of this study was isolation, identification and characterization of bacteria of the genus Enterococcus from Duch-type semi-hard cheese during manufacture and ripening. Cheese samples from two different producers (I and II) were used at the production day and after 30, 90 and 176 days of ripening.Altogether 361 suspected enterococci isolates were obtained from cheese samples during 7 month of ripening. Using genus-specific PCR, 285 isolates were identified as the members of the genus Enterococcus. The identification of five Enterococcus species was performed by PCR using species-specific primers. Among 165 Enterococcus...
SENZORICKÉ HODNOCENÍ FERMENTOVANÝCH SALÁMŮ HERKULES S PŘÍDAVKEM PROBIOTICKÉHO KMENE Lactobacillus casei 01
The sensory evaluation of fermented sausages Herkules with probiotic strain Lactobacillus casei 01
Radka Burdychová, Hana Šulcerová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 57-64 | DOI: 10.11118/actaun200957050057
The aim of this work was to monitor quantitative and qualitative representation of probiotic strain L. casei 01 (Sacco, Italy) in dry femented sausages "Herkules" taken from two different producers (A and B). Negative control susages without probiotics were also made at both producers, to monitor the differences between pH profiles of and lactic acid bacteria counts during fermentation and storage of dry sausages. The second objective of this study was to determine sensory quality of probiotic sausages in comparison with non-probiotic controls.The counts of L. casei and LAB in all sausages significantly (P < 0,01) increased during...
STANOVENÍ VELIKOSTI LISTOVÉ PLOCHY U RÉVY VINNÉ
The evaluation of leaf area by the grapewine
Patrik Burg, Pavel Zemánek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 65-70 | DOI: 10.11118/actaun200957050065
The contribution deals with leaf area assesment of 9 grapevine varieties. The measurements were carried out by means of Leaf Area Metr CI-202 (scanner type). The results show, that the size of leaf area per vine is as foolow: 1,16-2,09 m2 during the prolongation growth stage, 1,49-3,20 m2 during flowering and 1,99-3,30 m2 during bunch and cane ripening. The quickest growth of leaf area is during phenological stage of flowering. The varieties Hibernal, Müller Thurgau, Sauvignon blanc, Saint Laurent, Zweigeltrebe have adequate proportion of leaf area and carry-over. On the contrary the varieties Ranfol bianco, Petit Riesling,...
MĚŘENÍ HUSTOTNÍHO PROFILU NEROVNOMĚRNĚ SLISOVANÉHO DŘEVA OSIKY OBECNÉ POMOCÍ PŘÍSTROJE X - RAY DENSE - LAB
Determination of density profiles of unevenly compressed wood of Populus tremula using the X - RAY DENSE - LAB laboratory device
Aleš Dejmal, Jan Šrajer, Jaroslav Hrázský
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 71-78 | DOI: 10.11118/actaun200957050071
The paper deals with the measuring of the density profile of unevenly pressed wood of European aspen (Populus tremula L.). The main aim of the work is to examine in an experimental way the possibilities of using the X - RAY DENSE - LAB laboratory equipment designed for the determination of density profiles of agglomerated and plied large-area materials. The work uses the X - RAY DENSE - LAB equipment to determine the density profile of the cross-section of unevenly pressed aspen wood, plasticized hydrothermically, without the presence of chemical substances. The work also presents calculations of the level of compression/densification in dependence...
Virové patogeny mečíků, kosatců a tulipánů v České republice
Survey of virus pathogens in gladiolus, iris, and tulip in the Czech Republic
Ganesh Selvaraj Duraisamy, Radovan Pokorný
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 79-86 | DOI: 10.11118/actaun200957050079
The occurrence of Bean yellow mosaic virus (BYMV), Cucumber mosaic virus (CMV) Tobacco rattle virus (TRV) in gladiolus, iris, tulip and Iris yellow spot virus (IYSV) in iris was investigated by examining the plants by the means of serological techniques (ELISA). ELISA was applied to determine the presence of BYMV, CMV, TRV infections in both aerial and underground parts of gladiolus, iris, and tulip, and IYSV on the aerial parts of iris, respectively. 262 gladiolus plants were tested. 63.7% was infected by BYMV, 29.4 % by CMV, and 2.7 % by TRV. Out of 180 plants of iris, 1.1% was infected by BYMV, 6.7% by CMV, 2.8% by TRV,...
INTERPRETACE VÝSLEDKŮ POKUSNÉ KALIBRACE PRO STANOVENÍ KYSELINY CITRONOVÉ V MLÉCE INFRAČERVENOU SPEKTROSKOPIÍ (MIR-FT)
Result interpretation of experimental calibration for milk citric acid determination via infra-red spectroscopy (MIR-FT)
Oto Hanuš, Irena Hulová, Václava Genčurová, Ladislav Štolc, Josef Kučera, Jaroslav Kopecký, Radoslava Jedelská, Zdeněk Motyčka
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 87-102 | DOI: 10.11118/actaun200957050087
Citric acid (KC) in milk is indicator of cow energy metabolism. Milk laboratories set up KC determination. A method can be infra-red analyse (MIR-FT). The goal was to develop a relevant method for reference sample preparation for MIR-FT (indirect method, Lactoscope FTIR and MilkoScan FT 6000) calibration. As reference was used a photometric method (c; 428 nm). KC was added (n = 3) into some reference milk samples (n = 10, bulk milk). Mean value was 9.220 ± 3.094 mmol.l-1 with variation range from 6.206 to 15.975 mmol.l-1. Recovery c was from 100.8 to 120.2 %. Correlation between c and MIR-FT were from 0.979 to 0.992 (P...
Analýza vztahů mezi bodem mrznutí a vybranými ukazateli zdravotního stavu vemene mezi kravským, kozím a ovčím mlékem
Analyse of relationships between freezing point and selected indicators of udder health state among cow, goat and sheep milk
Oto Hanuš, Václava Genčurová, Josef Kučera, Marcela Vyletělová, Jiří Třináctý
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 103-110 | DOI: 10.11118/actaun200957050103
Milk freezing point (MFP) is important quality indicator. Aim was to analyse the relationships of MFP to selected udder health milk indicators (MIs) by comparison between cows (reference), goats and sheep. Bulk milk samples came from 3 herds of Czech Fleckvieh (B, n 93) and 1 goat herd and sheep flock (White short-haired, W, n 60; Tsigai, C, n 60). Animal nutrition was performed under the typical country conditions. MIs which were investigated: DM, dry matter; SNF, solid non fat; L, lactose (all in %); SCC, somatic cell count (103 ml-1); EC, electrical conductivity (mS cm-1); MFP (°C); Na and K (in mg kg-1)....
OLFAKTOMETRICKÉ ZAŤAŽENIE OVZDUŠIA
Olfactometric pollution of air
Lucia Haraslínová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 111-118 | DOI: 10.11118/actaun200957050111
This paper describes the olfactometric assessment of volatile organic compounds emitted by coating films.It describes the measurements of concentration, intensity, hedonic tone and character of odor caused by emissions of volatile organic compounds. VOCs' emitted in to the small-space chamber with capacity of 1 m3 were tested by dynamic olfactometric method. Paper also contains a comparison of olfactometric air pollution of two different types of coating films. The work is aimed to determine the relationships and dependencies between the measured values of volatile organic compounds obtained by the gas chromatography and reported sensation.
POROVNÁNÍ VLASTNOSTÍ DŘEVA BUKU LESNÍHO Fagus sylvatica (L.) V RŮZNÉM STAVU A STUPNI DEGRADACE DŘEVOKAZNÝMI HOUBAMI
The comparison of properties of European beech Fagus sylvatica (L.) in different stage of degradation caused by wood-decay fungi
Jiří Holan, Blanka Stávková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 119-130 | DOI: 10.11118/actaun200957050119
This work focus on comparison of biological degradation of wood caused by wood-decay fungi (white and brown rot). Test samples were made of European Beech Fagus sylvatica (L.). As wood-decay fungi were used Trametes versicolor (L.) Lloyd (white rot) and Serpula lacrymans (Wulf. Ex Fr.) Schroet (brown rot). Aim of this work was comparison of rate of propagation of wood-decay fungus and degradation of wood in time. After termination of the test was made comparison of intensity of degradation between both fungi species. Weights of test samples were diminishing for both groups of wood-decay fungi during three months. Moisture content...
Analýza faktorů kvality výřezů vyráběných harvestory
Analysis of factors of the quality of logs produced by harvesters
Jan Honsa, Jindřich Neruda
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 131-140 | DOI: 10.11118/actaun200957050131
Increasing demands of the present society lead to an effort to rationalize logging operations in forest management. Therefore, multi-function logging machines are increasingly used in the course of timber harvesting. Nevertheless, the economic effectiveness of these machines is affected not only by their productivity or environmentally friendly operations but also the quality of performed work. It can be evaluated by the assessment of the quality of produced assortments. Decreasing quality of produced logs can result in the reduction of marketability and wood price. Thus, the aim of this paper is to determine some defects originating at the harvester...
Vliv předplodiny a diferencovaného hnojení na výnos a obsah N-látek v zrnu jarního ječmene
The effect of the previous crop and differentiated fertilisation on yields and content of N-substances in spring barley grain
Luděk Hřivna, Rostislav Richter, Pavel Ryant, Michal Příkopa
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 141-148 | DOI: 10.11118/actaun200957050141
In small-plot experiments established in 2001-2004 we studied the effect of the chemical composition of the plant dry matter of spring barley, varieties Kompakt and Jersey, on grain yields. A relatively strong correlation was confirmed between the chemical composition of the plant dry matter and yields. The correlation was most intensive in the case of nitrogen (r = 0.536), phosphorus (r = 0.503), magnesium (r = 0.464) and sulphur (r = 0.431) at the beginning of shooting (DC 30); in the case of potassium (r = 0.557) at the beginning of tillering (DC 23) and calcium (r = 0.530) during ear formation (DC 55). A relatively strong correlation remained from...
VZTAH MEZI CELKOVÝM NÁDOJEM A DÍLČÍMI VÝDOJKY DOJNIC DOJENÝCH DOJICÍM ROBOTEM
Correlation between whole and partial milk yields of dairy cows milked using the automatic milking system
Gustav Chládek, Daniel Falta, Irena Komzáková, Oto Hanuš, Radoslava Jedelská, Pavel Hering, Teodor Králíček
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 149-158 | DOI: 10.11118/actaun200957050149
The objective was to quantify the correlations between milk indicators of partial milk yields and whole milk output; we analysed 576 milk samples taken from 2 to 4 partial milk yields of 156 Holstein dairy cows milked using the automatic milking system (AMS). In the accredited (EN ISO 17025) milk laboratory in Brno-Tuřany the samples were analysed for the content of fat (T; g.100g-1), crude protein (B; g.100g-1), lactose (L; lactose monohydrate; g.100g-1) and somatic cell count (SCC; 103.ml-1). The average values in the whole milk output were as follows: T = 3.69 g.100g-1, B = 3.39 g.100g-1,...
Reakce polních okurek (Cucumis sativus L.) na opoždění agrotechnických termínů a fenologických fází v Polsku
Reaction of field cucumber (Cucumis sativus L.) to the delay of agrotechnical dates and phenological phases in Poland
Robert Kalbarczyk
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 159-166 | DOI: 10.11118/actaun200957050159
The aim of the work was to determine a potential decrease in yields and a risk of cultivation of field cucumber of pickling varieties in Poland caused by the delay of the dates: flowering, fruit setting and harvesting. In order to carry out this task the following phenological dates from whole Poland were used: emergence, flowering and fruit setting and also the agrotechnical dates: sowing and harvesting from 28 experimental stations of the Research Centre for Cultivar Testing (COBORU) through 1966-2005. On the basis of linear regression analysis the relation between the yield of field cucumber and the analysed agrotechnical and phenological dates...
MIKROBIOLOGICKÉ A SENZORICKÉ VLASTNOSTI JOGURTŮ A JEJICH ZMĚNY PO UPLYNUTÍ DOBY MINIMÁLNÍ TRVANLIVOSTI
The microbiological and sensory qualities of yoghurts and their changes after of "best before" date
Libor Kalhotka, Květoslava Šustová, Tomasz Göbel, Blanka Kvasničková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 167-176 | DOI: 10.11118/actaun200957050167
The aim of the work was determined of microbial and sensory quality of selected white yoghurts in the course of their shelf-life. The samples of yoghurts were produced in dairy Olma, joint-stock company Olomouc. The selected white yoghurts Revital Active (in addition of probiotic culture composed of Bifidobacterium sp., Lactobacillus acidophilus and Lactobacillus rhamnosus), Klasik, Bio yoghurt Via Natur, Silueta light (0.1% fat, sugarless) and Florian were assessed in fresh condition and after an expiration date. Total counts of microorganisms, lactic acid bacteria, yeasts, moulds and coliform bacteria have been checked in the...
Analýza vplyvu geometrie reznej hrany zubov pílových kotúčov na proces priečneho delenia dreva
Analysis a cutting edge geometry influence on circular saw teeth at the process of crosscutting wood
Ján Kováč, Milan Mikleš
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 177-182 | DOI: 10.11118/actaun200957050177
Nowadays, the wood cutting process looks like a technological scheme consisting of several connected and relatively inseparable parts. The crosscutting wood is the most widespread in the process of forest exploitation; it is used at tree exploitation, shortening stems and assortment production. The article deals with the influence of the cutting edge geometry of circular saws on the torque and also on the cutting performance at the crosscutting wood therefore there is the influence on the whole cutting process. In the article there is described detailed measurement procedure, used measuring devices and the process of results analysis. Knowledge of...
Vliv přídavku lněného a rybího oleje do krmiva na spektrum mastných kyselin svaloviny kapra obecného (Cyprinus carpio L.)
The influence of linseed oil and fish oil diet supplements to the fatty acid spectrum of common carp (Cyprinus carpio L.) muscle
Vladimír Kukačka, Lucie Chaloupková, Milada Fialová, Radovan Kopp, Jan Mareš
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 183-192 | DOI: 10.11118/actaun200957050183
Effect of addition 6% of linseed oil (designated L06), 6% and 10% of fish oil (R06 and R10) to feed on the fatty acid spectrum of common carp (Cyprinus carpio L.) was investigated. The basic feedmixture which was used as a control variant (K - 34% protein; 9% fat) and the three with oil addition (L06, R06 and R10) were fed to carp fingerling (43.25 g average weight) for 60 days - from 23rd April to 20th June. Before that the fish were fed for 2 month by whey grain and commercial feed for carp fingerling in pond fish-culture (KP feed mixture - 33% protein; 5% fat) at daily feeding rate 1.5% of actually fish mass. This procedure...
Morfologie, biologie a rozšíření drobníčka Stigmella irregularis Puplesis (Lepidopera: Nepticulidae)
Morphology, biology and distribution of Stigmella irregularis Puplesis (Lepidopera: Nepticulidae)
Aleš Laštůvka, Zdeněk Laštůvka
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 193-196 | DOI: 10.11118/actaun200957050193
New data on the morphology, biology and distribution are given for Stigmella irregularis Puplesis, 1994, a species described after several males from Crimea. A combination of black head, ochreous orange frontal tuft, creamy collar and scape, and hindwing black androconial scales are characteristic of the male. The female specimens collected by the present authors together with males, and described for the first time here, having the same morphological characters combined with the transversal forewing band, have been preliminarily attached to this species. Stigmella irregularis develops in the leaves of Pyrus amygdaliformis Vill.,...
Obnova lesa pod výstavky dubu letního (Quercus robur L.)
Forest regeneration under standards of pedunculate oak (Quercus robur L.)
Jiří Libus, Oldřich Mauer
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 197-204 | DOI: 10.11118/actaun200957050197
Work objective was to establish reasons to the impaired vitality of woody and herbaceous vegetation growing under standards of pedunculate oak (Quercus robur L.). The paper analyzes the influence of insolation, root competition, soil moisture content and chemical composition of soil on the growth of pedunculate oak seedlings under standards. The analyses included three standards of pedunculate oak aged over 150 years, growing at an altitude of 160 m a.s.l. Controls were plots occurring at a distance of 20 m from the standards. Conclusions following out from the analyses are as follows: The number of seedlings emerged under the standards was...
VLIV MIKROVLNNÉ PLASTIFIKACE, PLOŠNÉHO LISOVÁNÍ A VYSOKOTEPLOTNÍ ÚPRAVY NA MODUL PRUŽNOSTI A MEZ PEVNOSTI V OHYBU KOLMO KE SMĚRU VLÁKEN V RADIÁLNÍM SMĚRU U SMRKU ZTEPILÉHO (Picea abies (L.) KARST.)
Influence of microwave plasticization, high temperature treatment and areal compression on modulus of elasticity and bending strength perpendicular to the gain in radial direction at Spruce (Picea abies (L.) Karst.)
Lukáš Merenda, Květoslav Nikl
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 205-212 | DOI: 10.11118/actaun200957050205
Nowadays wood modification is very-discussed and its importance is growing up. Wood plasticization alias a temporary change of wood properties makes subsequent processing possible. Plasticization is very suitable for subsequent mechanical compressing of wood. Instead steaming and boiling there is a microwave heating for wood plasticization. This kind of heating cuts down the time of plasticization from hours to seconds and also reduces energy consumption.Pressing of wood perpendicular to the gain in radial direction causes change of wood structure, increases wood density and due to this the wood has increased mechanical properties as bending strength...
Zmeny aminokyselinového spektra počas fermentačného procesu lucernových siláží konzervovaných chemickým a biologickým aditívom
Changes in amino acid profile of alfalfa silage preserved by chemical and biological additives during fermentation
Jaroslava Michálková, Daniel Bíro, Miroslav Juráček, Milan Šimko, Branislav Gálik
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 213-220 | DOI: 10.11118/actaun200957050213
Changes in amino acid profile of alfalfa silage preserved with chemical or biological additives were studied in fresh and wilted silage. The chemical additive was formic acid and the biological additive consisted of Lactobacillus rhamnosus, L. plantarum, L. brevis, L. buchneri and Pediococcus pentosaceus. Second cut alfalfa (Medicago sativa L.) was harvested at the bloom stage, ensiled in mini silos (15 dm3) and fermented at 20-23 °C for 12 weeks. The dry matter of the fresh silage was 228 g.kg-1 and 281.6 g.kg-1 for the wilted before ensiling. The amino acid content was estimated...
MODELOVÁNÍ 3D MIKROSKOPICKÉ STAVBY LISTNATÉHO DŘEVA S KRUHOVITĚ PÓROVITOU STAVBOU
3D modelling of microscopic structure of ring-porous wood
R. Neugebauer, Vladimír Gryc, Hanuš Vavrčík
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 221-228 | DOI: 10.11118/actaun200957050221
Nowadays many scientific 3D models of wood are available. These models are suitable only for simulation of physical fields movements in wood but not for educational purposes especially demonstration of microscopic structure of wood.3D structure of ring-porous hardwood species was created. European ash (Faraxinus excelsior L.) was selected due to its relatively simple wood structure than other wood species within ring-porous group. The model was created by manual modelling process in Rhinoceros 4.0 that is a software for visualization and modelling. Microslides were prepared from sample of ash to take micro photos that were used as a visual...
ANALÝZA EROZNÍCH POMĚRŮ POVODÍ VODÁRENSKÉ NÁDRŽE ŠANCE: SROVNÁNÍ VÝSLEDKŮ METOD HODNOTÍCÍCH EROZNÍ ČINNOSTI
Analysis of soil erosion factors in the river-basin of water tank Šance: confrontation of results of methodologies observing soil erosion
Marie Palíková, Aleš Kučera
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 229-234 | DOI: 10.11118/actaun200957050229
Soil erosion is still an issue in forestry and in human water-resources activities connected with landscape management and the protection of surface waters. The methods recently assessing the water erosion include: monitoring of suspended sediments in water, monitoring of dynamics of soil properties, assessing the inclination of soil towards soil erosion, monitoring of effectiveness of erosion control measures, erosion processes modeling etc. (Buzek, 1981; Buzek, 1983; Holý, 1994; Jařabáč, Belský, 2008).The river basin of the water tank Šance is very important as a source of potable water and this importance is advanced, when water tank is clogged...
ANALÝZA PROVOZU MĚSTSKÝCH AUTOBUSŮ
Analysis of city buses operation
Luboš Papírník
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 235-242 | DOI: 10.11118/actaun200957050235
This paper deals with analysis of city buses operation. This analysis is focused on the energy balance of propulsion system of these buses. The energy balance gives an overview about necessary amount of energy for city buses in pure city operation. The operation of city buses is divided for this analysis into three basic modes: stop state, drive and deceleration. The fleet of the same 19 city buses was chosen for collection of all operation data. These city buses are located in one city. The buses were changing all bus routes and were driven by all bus drivers. These conditions are necessary for elimination of bus route topology and bus driver behaviour....
Dědičnost rezistence meruněk k viru šarky švestky u potomstev odrůdy 'Harlayne'
Inheritance of resistance to Plum pox virus in the progeny of the apricot cv. 'Harlayne'
Petra Pilařová, Boris Krška
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 243-250 | DOI: 10.11118/actaun200957050243
Natural resistance to Plum pox virus (PPV), the agent of sharka disease, is one of the most important traits of interest to stone fruit breeders, although few sources of resistance have been identified. One of the few apricot cultivars which does show resistance, 'Harlayne', was chosen for a study of the genetics of PPV resistance. It was crossed with three different cultivars, two susceptible ('Vestar' and 'Strepet') and one immune ('Orangered'). Four different lines (since there was one reciprocal combination) were established and the F1 crosses were subsequently inoculated with the PPV-M and PPV-D strains by grafting infected buds. A woody...
EKOLOGICKÁ OBNOVA A SUKCESNÍ VÝVOJ V BIOCENTRU HRÁZA U KROMĚŘÍŽE
The ecological restoration and the development of succession in biocentre Hráza near Kroměříž
Miluše Poláková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 251-262 | DOI: 10.11118/actaun200957050251
A restoration ecology is a branch and also possible approach to the protections of both nature and landscape which completes the conservative trends (conservation biology). An ecological restoration is a practical application of this branch which can be used in the restoration of ecosystems, coenoses, populations or sites disturbed or damaged by human impact.An ecological restoration offers the interesting alternatives to technical reclamations of the localities disturbed by mining. It exploits the natural processes (mainly controlled and spontaneous successions) respecting the development of coenoses adequate to the locality. The degree of man...
Pokrytí ošetřované plochy postřikovou kapalinou a vliv na účinnost herbicidu
Leaves coverage of spray liquid and influence on herbicide efficacy
Martin Prokop
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 263-270 | DOI: 10.11118/actaun200957050263
The effect of spray liquid leaves coverage on efficacy of herbicides was investigated. Five nozzles sizes were used to reach different percentage coverage. The effect of leaves coverage on Elytrigia repens (L.) Desv. was evaluated using systemic herbicide (clethodim 240 g/l + surfactant) and the effect of leaves coverage on Chenopodium album L. and Galium aparine L. was evaluated using contact herbicides (bentazone 600 g/l and the mixture of bentazone 480 g/l + activator 150 g/l). No significant differences of the efficacy were observed between different percentages of leaves coverage in case of systemic herbicides. Vice versa...
RAJONIZACE EROZNÍHO OHROŽENÍ PŮD VODOU Z TAJÍCÍHO SNĚHU NA ZÁKLADĚ ANALÝZY KLIMATOLOGICKÝCH PODKLADŮ
Zoning of erosion potential of water accumulated in snow cover based on climatological data analysis
Jana Smolíková, Hana Pokladníková, František Toman
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 271-278 | DOI: 10.11118/actaun200957050271
Melting of snow in winter and early spring often causes soil erosion. The results of erosion studies show that the runoff generated in the cold period can cause more intensive erosion than in the warm half year. By analysis of the monthly catchment of suspended sediments, it was found maximum of suspended sediments in the spring likely as effect of the spring melting of snow. Erosion caused by water from melting snow in our conditions does not reach the same intensity as the erosion caused by torrential rainfall. However, the torrential rainfall has only a local character, while the spring melting of snow usually affects larger territory. Erosive potential...
MOŽNOSTI VYUŽITÍ USMĚRŇOVACÍCH STAVEB V RÁMCI REVITALIZACE TOKU
Possibility of utilization of direction construction in river revitalization
Jana Synková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 279-284 | DOI: 10.11118/actaun200957050279
Directing and concentrating structures are used mainly on water coursers with unstable channel and major sediment transport or in areas with major bank erosion. The main purpose of these structures is to redirect water flow from the stressed and very often eroded bank to the centre of the channel or other parts of the channel, where the water flow may be used e.g. for dispersion of unsuitable deposit before its eventual stabilization by natural succession.Another important goal is to achieve a desired change of the stream channel by using the transporting power of the water flow and targeted depositing of sediment. In the area of the deflecting...
Kvantifikace konkurenčních hodnot dokumentů
Quantification of competitive value of documents
Pavel Šimek, Jiří Vaněk, Jan Jarolímek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 285-290 | DOI: 10.11118/actaun200957050285
The majority of Internet users use the global network to search for different information using fulltext search engines such as Google, Yahoo!, or Seznam. The web presentation operators are trying, with the help of different optimization techniques, to get to the top places in the results of fulltext search engines. Right there is a great importance of Search Engine Optimization and Search Engine Marketing, because normal users usually try links only on the first few pages of the fulltext search engines results on certain keywords and in catalogs they use primarily hierarchically higher placed links in each category. Key to success is the application...
VLIV POČTU BAKTERIÍ MLÉČNÉHO KVAŠENÍ, PROBIOTICKÝCH KULTUR A HODNOTY PH V KYSANÝCH MLÉČNÝCH VÝROBCÍCH NA JEJICH SENZORICKÉ HODNOCENÍ
Influence of lactic acid bacteria, probiotic cultures and pH value in fermented yoghurt drink to sensory quality
Hana Šulcerová, Radka Burdychová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 291-304 | DOI: 10.11118/actaun200957050291
Nowadays, we can see on market mainly fermented milk products with addition of probiotic microorganisms, especially strains of Lactobacillus and Bifidobacterium. We can meet also other types of probiotic products. It is recommended to consume at least 100 grams of fermented milk products with minimal concentration of 106 of probiotics in one gram or mililitr of product daily for reaching positive effect on men's health. During fermentation of the carbohydrates, proteins and lipids are disunite and many of aromatic compounds ane compose. They give a typical sensory characteristic to fermented milk products. For quality and quantity...
In vitro regenerace a indukce polyploidie u Pelargonium × hortorum L. H. Bailey
In vitro regeneration and polyploidy induction in Pelargonium × hortorum L. H. Bailey
Hana Vejsadová, Petra Kuchtová-Jadrná
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 305-312 | DOI: 10.11118/actaun200957050305
The objective of this work was to induce in vitro shoot regeneration as influenced by plant growth regulators and ascertain an effective method of polyploidy induction using colchicine and oryzalin in two diploid cultivars 'Gizela' and 'Black Velvet Scarlet F1' of Pelargonium × hortorum L. H. Bailey. In both cultivars, benzyladenine (BA) significantly improved shoot regeneration compared to zeatin. The infiltration and the dip methods of explant treatment were used for polyploidy induction. Regenerants were analyzed using the flow cytometry (FCM). In 'Gizela' and 'Black Velvet Scarlet F1', 10 tetraploids on the level...
Optimalizace kvalitativní a semikvantitivní detekce geneticky modifikovaných plodin pomocí PCR
Optimisation of qualitative and semi-quantitative detection of genetically modified crops by PCR
Tomáš Vyhnánek, Pavel Hanáček
Acta Univ. Agric. Silvic. Mendelianae Brun. 2009, 57(5), 313-318 | DOI: 10.11118/actaun200957050313
For qualitative and semi-quantitative detection of genetically modified crops we selected the detection of the frequently used promoter 35S CaMV. To optimise the method we used two commercially available genotypes of maize from the company Monsanto (USA), i.e. the transgenic hybrid Bt-maize line MON810 and a genetically non-modified control (isogenic line to MON810). We tested the primers and PCR programmes described by Greiner et al. (2005) and Hernandéz et al. (2005). When applying PCR methods of detection of Bt-maize the first step was to optimise the protocol for the detection of the maize genome and detection of the specific sites of genetically...