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Critical success factors influencing the transformation of the agricultural biotechnology industry in TaiwanMeng-Shiunn LEEAgric. Econ. - Czech, 2012, 58(6):249-263 | DOI: 10.17221/60/2011-AGRICECON The study uses the fuzzy Delphi and FANP (fuzzy analysis network process) methods to integrate the views of experts from enterprises and academia regarding the future direction of the agricultural biotechnology industry in Taiwan, in order to extract the critical success factors influencing its transformation. This study compares the differences in the "cross-domain" and "non-cross-domain" critical success factors, and expects that the research results could be a decision-making reference for both the industry and the government. The research results show that the cross-domain critical factor that influence the transformation of the agricultural biotechnology industry in Taiwan are sequentially: a stable source of raw materials, control of the trend of market demand, a new production equipment, the capability in supporting upstream and downstream industries, the integration of the human resources of the upstream, midstream, and downstream industries, and the capability in marketing and promotion. The non-cross-domain critical factors are sequentially: the capacity to establish the system of product technology, the capacity to control intellectual property rights, a perfect educational system, the capacity to carry out risk management of the new product development, the competence in cultivating the capacity of technical and R&D personnel, and laws and regulations. |
Moisture effect on carbon and nitrogen mineralization in topsoil of Changbai Mountain, Northeast ChinaG. Qi, Q. Wang, W. Zhou, H. Ding, X. Wang, L. Qi, Y. Wang, S. Li, L. DaiJ. For. Sci., 2011, 57(8):340-348 | DOI: 10.17221/56/2010-JFS Changbai Mountain Natural Reserve (1,985 km2 and 2,734 m a.s.l.) of Northeast China is a typical ecosystem representing the temperate biosphere. The vegetation is vertically divided into 4 dominant zones: broadleaved Korean pine forest (annual temperature 2.32°C, annual precipitation 703.62 mm), dark coniferous forest (annual temperature -1.78°C, annual precipitation 933.67 mm), Erman's birch forest (annual temperature -2.80°C, annual precipitation 1,002.09 mm) and Alpine tundra (annual temperature -3.82°C, annual precipitation 1,075.53 mm). Studies of soil carbon (C) and nitrogen (N) mineralization have attracted wide attention in the context of global climate change. Based on the data of a 42-day laboratory incubation experiment, this paper investigated the relationship between soil moisture and mineralization of C and N in soils with different vegetation types on the northern slope of the Natural Reserve Zone of Changbai Mountain. The elevation influence on soil C and N mineralization was also discussed. The results indicated that for the given vegetation type of Changbai Mountain the C and N mineralization rate, potential mineralizable C (C0) and potential rate of initial C mineralization (C0k) all increased as the soil moisture rose. The elevation or vegetation type partially affected the soil C and N mineralization but without a clear pattern. The moisture-elevation interaction significantly affected soil C and NO3--N mineralization, but the effect on NH4+-N mineralization was not significant. The complex mechanism of their impact on the soil C and N mineralization of Changbai Mountain remains to be studied further based on data of field measurements in the future. |
Prevalence of burnout among forest workers in Mazandaran, IranOriginal PaperMajid LOTFALIAN, Fatemeh SHEIKHMOONESI, Mahbobeh SABZI, Mahbobeh ABASPOUR, Saba PEYROVJ. For. Sci., 2017, 63(2):70-74 | DOI: 10.17221/111/2015-JFS Burnout imposes consequences and costs on the organization and employees, such as frequent job and workplace replacement, frequent absenteeism and permissions, and reduced work quantity and quality. So it seems necessary to perform institutional interventions to reduce the staff burnout. The aim of the present study was to determine prevalence of burnout among forest workers in Mazandaran. This descriptive cross-sectional study was conducted on a sample of workers in the forests of Mazandaran province. Result showed that a significant proportion of workers had burnout in terms of the three dimensions of Maslach Burnout Inventory. 46.90% of respondents suffered from high emotional exhaustion, 43.36% had high depersonalization and 49.56% of respondents suffered from low personal accomplishment. In this study it was shown that people with bachelor or higher degree (compared to people with a lower education level) were in better conditions in terms of all three dimensions of burnout; they had higher personal accomplishment and higher emotional exhaustion and lower depersonalization. It was shown that burnout is highly prevalent among chainsaw operators and skidder drivers. |
A rare case of partial paraxial radial hemimelia in a puppyCase ReportF. Macri, S. Di Pietro, A. Palumbo Piccionello, G. Rapisarda, G. Lanteri, V. Angileri, F. MarinoVet Med - Czech, 2017, 62(12):681-684 | DOI: 10.17221/104/2016-VETMED This article reports a case of a congenital unilateral forelimb defect in a two-month-old male puppy with clinical and radiographic findings. Congenital deformities are structural or functional congenital defects arising from errors during development, and they can affect an isolated portion of the body, the complete body or parts of several systems of the body. The congenital absence of a portion of the proximal epiphysis of the radius is an extremely rare condition in human and animal species. Although similar congenital limb deformities have been infrequently reported in dogs, the present case is, to the best of the authors' knowledge, the first report of this type of partial forelimb paraxial radial hemimelia in a puppy, and it represents an addition to the scant literature on this topic. |
First record of a new alien economically important thrips Dichromothrips corbetti (Priesner, 1936) (Thysanoptera: Thripidae) in Slovakia - short communicationShort CommunicationRudolf Masarovič, Martin Štefánik, Martina Zvaríková, Jakub Sigmund, Peter FedorPlant Protect. Sci., 2017, 53(3):177-180 | DOI: 10.17221/141/2016-PPS The first record of vanda thrips (Dichromothrips corbetti [Priesner, 1936], Thysanoptera, Thripidae) in Slovakia is presented. An economically important pest with heavy infestations on flowers of Phalaenopsis orchids was recorded as introduced most probably from North African plantations. Potential infiltration of this exotic species into Central European glasshouses refers to the globalisation of trade in biological commodities. |
Nutritive value of red clover and lucerne forages for ruminants estimated by in vitro and in vivo digestibility methodsP. Homolka, V. Koukolová, M. Podsedníček, A. HlaváčkováCzech J. Anim. Sci., 2012, 57(10):454-468 | DOI: 10.17221/6346-CJAS The aim of this study was to determine the nutrient and energy levels of red clover and lucerne forage. Investigation of forage at different maturity stages of three growths was carried out by chemical analysis, in vitro and in vivo digestibility methods. Generally, maturation caused a significant increase in fibre fractions. With the increasing maturity of forage samples the in vivo, in vitro, and calculated in vivo (in vivocalcul) digestibilities of organic matter (OM) linearly decreased. The in vitro and in vivocalcul digestibilities of OM averaged 0.754 and 0.708 for red clover and 0.717 and 0.667 for lucerne, respectively. The in vivo OM digestibility averaged 0.710 for red clover and 0.666 for lucerne. Gross energy (GE), digestible energy (DE), metabolizable energy (ME), net energy for lactation (NEL), and net energy for growth (NEG) averaged 18.12, 12.41, 9.60, 5.67, 5.50 and 18.09, 11.56, 9.01, 5.26, 4.99 MJ/kg of dry matter for red clover and lucerne, respectively. The effect of a vegetative stage on energy values of both forages was diverged for various growth times. When data were pooled across the estimated season, seven cutting-specific equations for descriptions of GE, DE, ME, NEL, NEG, in vitro, and in vivo OM digestibilities were obtained for red clover and lucerne, separately. The red clover model expression gave similar prediction equations for lucerne. It was possible to predict cutting-specific equations with coefficients of determination R2 > 0.719 for red clover and R2 > 0.400 for lucerne of the variation in GE, DE, ME, NEL, and NEG. The in vitro and in vivo OM digestibility equations were predicted with R2 being 0.840 (in vitro) and 0.707 (in vivo) for red clover, and 0.979 (in vitro) and 0.937 (in vivo) for lucerne. The parameters of these specific equations were statistically preferable than the general model expression which included both forages together. |
Sensory typology of apples used to evaluate scab-resistant cultivars as compared to known commercial applesOriginal PaperP. Jankowski, K. Tomala, E. Szpadzik, N. Baryłko-Pikielna, G. Wasiak-ZysHort. Sci. (Prague), 2016, 43(2):51-58 | DOI: 10.17221/40/2015-HORTSCI The aim of this work was to verify a comparative procedure for evaluating apple cultivars based on typology and comparing the sensory features of the examined cultivars during cold storage and simulated shelf-life. The procedure was applied experimentally to compare scab-resistant apples to known commercial cultivars. The procedure consisted of four sensory profiling analyses of internal apple characteristics: after two and four months of cold storage and after an additional ten days of shelf-life following each cold storage period. Eleven sensory attributes were evaluated at each timing, resulting in four general types of apple cultivars indicated and the cultivar storability over long cold storage time and shelf-life rated. The study was performed on 8 scab-resistant and 14 commercial apple cultivars evaluated over two consecutive years. The examined cultivars were then segmented into six groups of different sensory characteristics, which allowed for indicating those scab-resistant cultivars which might replace the conventional ones of equivalent sensory features. |
Carbohydrate and nitrogen reserves in two cultivars of Japanese plum grown under organic and conventional managementOriginal PaperLuis Felipe Pérez-Romero, Antonio Daza, Juan Francisco Herencia, Francisco Teodoro ArroyoHort. Sci. (Prague), 2017, 44(4):163-170 | DOI: 10.17221/92/2016-HORTSCI Nitrogen and carbohydrate (soluble sugars and starch) reserves were analysed in twig samples of 'Red Beaut' and 'Showtime' Japanese plum (Prunus salicina Lindl.) cultivars cultivated in two similar experimental orchards under organic and conventional management. 'Red Beaut' is a vigorous cultivar while 'Showtime' is a middle to low vigorous cultivar. Both cultivars exhibited delayed flowering and premature defoliation under organic management. In general, there were no differences in the concentration of reserves between the two types of management for either of the two plum cultivars, and, likewise, no differences were observed between cultivars, regardless of their vigor. Additionally, reserves were also analysed in plantlets of 'Mariana 2624' rootstock (Prunus cerasifera Ehrh × Prunus munsoniana W. Wight & Hedrick) grown in a growth chamber that simulated conditions of spring and autumn periods and subjected to organic or mineral fertilisation. Plants subjected to organic fertilisation were smaller and defoliated earlier, but the sizes of carbohydrate and nitrogen reserves were similar to that of plants grown with mineral fertilisation. |
How does general economy and agriculture sector performance influence farm producer support in the OECD countries?Tomasz Siudek, Aldona ZawojskaAgric. Econ. - Czech, 2012, 58(3):101-118 | DOI: 10.17221/57/2011-AGRICECON This paper assesses the effects of the performance of the OECD national economies and agricultural sectors on the farm producer support for the years 1986 to 2009. The study is complementary to the large amount of microeconomic research that highlights the importance of support to agricultural industry. Data for the analysis are taken from the OECD Producer and Consumer Support Estimates database and the World Bank World Development Indicators 2010 database. The Producer Support Estimate - PSE (expressed in absolute value, in percent of the total farm revenues and per 1 hectare of agricultural land) was taken as the dependent variable, whereas the selected indicators describing the performance of the economies (e.g. GDP per capita, unemployment, fiscal balance, government debt, government expense and tax revenue, exchange rate, agriculture share in GDP and employment, agricultural raw materials exports and imports) were the independent variables. Utilizing these variables, a simple linear regression analysis was conducted and resulted in many significant associations. In the period analyzed, there was a wide gap between the most and least farm supporting countries in terms of the annual average percentage PSE and the PSE per hectare. Substantial differences between the countries in the variability of the PSE over the time occurred. The empirical results obtained from the regression models reveal, among other, that when the countries were becoming richer, the percentage PSE was generally decreasing. Mixed results were obtained for the relationship between the percentage PSE and unemployment, as in some countries it was negative, while in the others positive. Expansionary fiscal policy exerted opposite effects on the PSE in different countries. Labour productivity in agriculture was inversely correlated with the percentage PSE. |
The influence of tillage and crops on particle size distribution of water-eroded soil sediment on StagnosolOriginal PaperIvica KISIC, Igor BOGUNOVIC, Darija BILANDZIJASoil & Water Res., 2017, 12(3):170-176 | DOI: 10.17221/91/2016-SWR The influences of six different tillage treatments and five different crops on soil losses by water erosion were studied during a twenty-year period (1995-2014) on Stagnosol in central lowland Croatia. The aim of the study was to determine how the quantity of soil sediment, different tillage treatments and crops influence the particle size distribution (PSD) of soil sediment. During the studied period, total number of non-eroded soil samples was 60 and total number of soil sediments samples was 445. Significantly lower amounts of fine sand and higher amounts of clay and silt were determined in sediments compared to the non-eroded soil regardless of cover crop and tillage treatment, with the exception of bare cultivated soil. Generally, when quantities of soil sediments were higher, textural differences between non-eroded and eroded soil were lower. Very week negative correlation was determined between the quantity of soil sediment and the content of clay (r = -0.25) as well as the content of silt (r = -0.23). A very weak positive correlation (r = 0.23) was determined between the content of fine sand and the quantity of soil sediment, while non correlation (r = -0.02) was determined between the content of coarse sand and the quantity of soil sediment. |
Integration of the SMED for the improvement of the supply chain management of spare parts in the food sectorOriginal PaperJorge LOZANO, Juan Carlos SAENZ-DIEZ, Eduardo MARTINEZ, Emilio JIMENEZ, Julio BLANCOAgric. Econ. - Czech, 2017, 63(8):370-379 | DOI: 10.17221/69/2016-AGRICECON The Single Minute Exchange of Die (SMED) methodology is well-known. A great variety of studies in the field of manufacturing and production process use it, but there are few applications of this methodology in the area of the supply chain management. In the paper, the philosophy of the SMED methodology is applied to the part of the supply chain that includes the spare parts and fixtures in the food sector. This involves studying the relationship with the supplier of the installation of spare parts and fixture on the machine. The study shows how the spare parts management has several phases: the coordination and purchase of the spare parts to the supplier, the storage of these spare parts, the coordination of these spare parts and the scheduled maintenance, and the installation of these spare parts on the machine. The implantation of the developed working methodology has obtained a relevant improvement in the coordination and management of the spare parts. In such a way, that storage time has been reduced (inside the company's storages) and the performance has been increased, focusing on and detailing the maintenance task and scheduling the available resources. |
Geographical distribution of the giant liver fluke (Fascioloides magna) in the Czech Republic and potential risk of its further spreadM. Kasny, L. Beran, V. Siegelova, T. Siegel, R. Leontovyc, K. Berankova, J. Pankrac, M. Kostakova, P. HorakVet Med - Czech, 2012, 57(2):101-109 | DOI: 10.17221/5256-VETMED The giant liver fluke, Fascioloides magna, is of interest to wild-life managers, veterinarians and researchers, due to its unusual body size (3-10 cm), high pathogenic potential and because it is continuously spreading to new areas, especially in Europe. Annually, the number of cases of animal infections (mainly cervids and bovids) caused by this fluke is monitored in many European countries, including the Czech Republic (with some foci of prevalence over 90%). During the years 2009 and 2010, 1622 survey forms focused on monitoring of fascioloidosis were distributed in the community of "Czech Inspectors of Hunted Game" (CIHG), and 21.3% of forms containing positive or negative response about F. magna occurrence were returned. The administrative units monitored by particular CIHG, who answered the forms, were geographically equally distributed and therefore we believe that also the recorded distribution of F. magna in wild-life animals reflects the real situation in the Czech Republic. A significant number of cases of F. magna infection were repeatedly reported from areas in the south-west part of the Czech Republic. Moreover, our report contains also some unique records of several new F. magna foci in the western (close to the German border), northern (close to the Polish border) and central parts of the Czech Republic, supporting the assumption that the parasite is spreading further throughout Europe. In five game administrative units F. magna infection was directly confirmed by examination of dissected deer livers or by microscopic examination of coprological samples, followed by isolation of DNA from adults and eggs and further molecular analyses. Fascioloides magna intermediate host snails (Galba truncatula and Radix spp.) were collected during 2009 and 2010 from different localities of the Czech Republic, kept in aquaria, examined for shedding of F. magna cercariae, dissected and parasite/snail DNA was isolated. After PCR with specific primers for parasite/snail internal transcribed region number two (ITS-2) the obtained sequences confirmed identification of the following species: F. magna, G. truncatula, R. peregra, R. lagotis, R. labiata and R. auricularia. Although it has been demonstrated that the number of areas with positive cases of fascioloidosis is still growing, the risk of pathogenic impact of F. magna on populations of free-living animals and farming cervids/bovids is generally underestimated. |
Silvicultural strategies for adapting planted forests to climate change: from theory to practiceW.L. Mason, M. Petr, S. BathgateJ. For. Sci., 2012, 58(6):265-277 | DOI: 10.17221/105/2011-JFS Adapting forests to climate change involves silvicultural measures such as use of a range of species and the fostering of mixed stands. We tested these in a Sitka spruce forest in southern Scotland, employing the Ecological Site Classification to match suitability of 24 species to six climatic and edaphic variables under values of accumulated temperature and moisture deficit projected for a medium emissions scenario for the present century. Both median and 90th percentile values were contrasted. In the first case there was a small change in species suitability with Sitka spruce, noble fir, downy birch, sycamore and aspen being the most suitable species. When the 90th percentile values were employed, the suitability of Sitka spruce and similar conifers had declined by the 2050's due to soil moisture deficits. The actual performance of a range of species in a long-term experiment on a similar, warmer site showed several productive conifers including Sitka spruce that maintained reasonable growth when planted in mixture. Mixed plots were developing into pure stands of the most productive species. Species diversification was the most practical adaptation measure for this forest and should concentrate on areas of the greatest risk like south-facing slopes with free-draining soils. |
Low-field magnetic resonance imaging of otitis media in two cats: a case reportCase ReportY. Zhalniarovich, A. Przeworski, J. Glodek, Z. AdamiakVet Med - Czech, 2017, 62(2):111-115 | DOI: 10.17221/94/2016-VETMED Otitis media is a common disease in clinical veterinary practice. Although low-field magnetic resonance imaging reports for otitis media in dogs exist, in cats detailed information is missing. Radiography is helpful in diagnosing chronic inflammation, but may be insufficient during the initial phase of inflammation. For this reason, this report describes the magnetic resonance findings in two cats with otitis media. In both cases, middle ear empyema was detected. Magnetic resonance imaging of middle ear disorders in cats should contain pre- and post-contrast T1-weighted sequences in the dorsal and transverse planes, a T2-weighted sequence in the dorsal and transverse planes and a fluid-attenuated inversion recovery sequence in the dorsal or transverse planes. On pre-contrast T1-weighted images, the empyema had an intensity similar to that of brain tissue with a delicate hyper-intensity in the middle. On post-contrast T1-weighted images, the material had non-uniform enhancement in the dorsolateral compartment and circumference enhancement in the ventromedial compartment of the tympanic bulla with a hypo-intense centre. On T2-weighted images, the mass had heterogeneously increased signal intensity to brain tissue, but was less intense than cerebrospinal fluid. In the fluid-attenuated inversion recovery sequence, the pathological lesion was distinctly hyper-intense in comparison to other tissues with a narrow area of increased signal intensity in the middle of the ventromedial tympanic bulla compartment. Magnetic resonance imaging is commonly used for the visualisation of different disorders of the membranous labyrinth and allows the differentiation of chronic hematomas, empyemas and middle and internal ear neoplasia. The recommended magnetic resonance protocol of the middle ear should include pre- and post-contrast T1 sequences in the dorsal and transverse planes, the T2 sequence in the dorsal and transverse planes and the fluid-attenuated inversion recovery sequence in the dorsal or transverse planes. |
Negative correlations between the susceptibilities of Czech and Slovak pollen beetle populations to lambda-cyhalothrin and chlorpyrifos-ethyl in 2014 and 2015Original PaperMarek Seidenglanz, Jana Poslušná, Pavel Kolařík, Jiří Rotrekl, Eva Hrudová, Pavel Tóth, Jiří Havel, Eva Plachká, Ján Táncik, Kamil HudecPlant Protect. Sci., 2017, 53(2):108-117 | DOI: 10.17221/187/2015-PPS Sixty-five Czech Meligethes populations were tested against lambda-cyhalothrin and chlorpyrifos-ethyl in 2014. In 2015, totally sixty Meligethes populations, some of which sampled also in Slovakia, were tested against the two insecticides. Adult vial tests by IRAC (Insecticide Resistance Action Committee) were used for testing (No. 011 v. 3 for lambda-cyhalothrin and No. 025 for chlorpyrifos-ethyl). For each of the tested populations the LC50, LC90, and in 2015 also LC95 values were determined for both these insecticides. Correlation analyses were made with transformed (log10 transformation) LC values. No significant correlation was recorded between the LC50 values. Contrary to that, significant (P < 0.05) negative (r values for negative) correlations were recorded between the LC90 and LC95 values. Pyrethroid resistance in pollen beetle populations should indicate their slightly higher susceptibility to chlorpyrifos-ethyl. |
Transgenic Bt cotton inhibited arbuscular mycorrhizal fungus differentiation and colonizationOriginal PaperXiuhua CHEN, Rui ZHANG, Fengling WANGPlant Soil Environ., 2017, 63(2):62-69 | DOI: 10.17221/743/2016-PSE The present study investigated the impact of transgenic Bacillus thuringiensis (Bt) cotton on several aspects of arbuscular mycorrhizal (AM) fungus Funneliformis mosseae. The results showed that Bt cotton significantly inhibited spore germination and pre-symbiotic hyphal growth. The appressorium density, arbuscule frequency and colonization intensity in Bt roots were also decreased. The statistical analysis demonstrated that the transformation event resulted in the inhibition of hyphal development and colonization. The reduced interaction between AM fungi and plants could affect nutrient uptake and transportation in plant-fungus symbiosis. The mechanism might involve the direct toxicity of Bt toxins or the interference of signal perception between AM fungus and Bt cotton. |
Application of the chlorophyll fluorescence ratio in evaluation of paddy rice nitrogen statusOriginal PaperJian YANG, Lin DU, Wei GONG, Jia SUN, Shuo SHI, Biwu CHENPlant Soil Environ., 2017, 63(9):396-401 | DOI: 10.17221/460/2017-PSE In this research, laser-induced fluorescence (LIF) technique combined with back-propagation neural network (BPNN) was employed to analyse different nitrogen (N) fertilization levels in paddy rice. Leaf fluorescence characteristics (FLCs) were measured by using the LIF system built in our laboratory and exhibited different FLCs with different nitrogen fertilization levels. The correlation between fluorescence intensity ratios (F685/F460, F735/F460 and F735/F685) and the dose of N fertilization was established and analysed. Then, the BPNN algorithm was utilized to validate that the different N fertilization levels can be classified based on the three FLCs. The overall identification accuracies of 2014 and 2015 were 90% and 92.5%, respectively. Experimental results demonstrated that the three FLCs with the help of multivariate analysis can be served as a helpful tool in the evaluation of paddy rice N fertilization levels. Besides, this study can also provide guidance for the selection of LIF Lidar channels in the following research. |
Changes in soil properties due to the application of activators in conditions of very heavy soilsOriginal PaperPetr Šařec, Petr NovákRes. Agr. Eng., 2017, 63(10):S40-S45 | DOI: 10.17221/39/2017-RAE This paper deals with verification of the effect of fermented manure (with and without Z'fix activators) and soil activators (PRP Sol) on a soil properties change. Their application should lead to a change in physical, physical-chemical and biological properties of soil, along with ecological material fixation, improved water retention and infiltration, reduction of soil susceptibility to water erosion and decreased soil tillage energy requirements. Field trial was established in Sloveč in Central Bohemia in the year 2014. The experiment was divided into several variants and was designed as multiannual. Z>fix activator was used as a biological transformation activator of manure. PRP Sol was used as a soil activator. In order to verify the effect, soil infiltration, cone index, bulk density and draft of tillage implement were measured. Measurements have shown a beneficial effect of the activators with regard to the decomposition of organic matter. Consequently, changes in soil properties and a reduction of draft at tillage operations developed. Finally, the effect should evolve gradually with a prolonged activator treatment. |
Germination of Corylopsis seeds evaluated by X-ray imaging and cold stratificationOriginal PaperJi Hee Kim, Kyung Ok Kim, Ae Kyung Lee, Mark S. Roh, Jeung Keun SuhHort. Sci. (Prague), 2017, 44(2):105-111 | DOI: 10.17221/194/2015-HORTSCI Effects of immersing seeds in water and X-ray imagining on germination of Corylopsis seed were investigated. Seeds that sank or floated were collected after immersing in water for 5 min, 4 h or 16 h, and germinated with or without 5°C cold stratification (CS). In C. coreana and C. sinensis var. calvescens, 52% and 89%, respectively, of seeds that sank immediately developed embryos and cotyledons germinated. Germination of C. sinensis var. calvescens seeds that sank after 16 h increased to 45% after the first CS treatment, as compared to 12% without CS. Immersing seeds in water for 16 h to collect full and mostly full seeds is recommended. X-ray imaging coupled with immersion is effective technique to select viable seeds. Dormancy could be partially released by immersing seeds in water for 16 h; however, germination was improved after CS. |
Geographical origin of honey from eight sub-regions of Bosnia and HerzegovinaFood Analysis, Food Quality and NutritionVildana Alibabić, Melisa Oraščanin, Nada VahčićCzech J. Food Sci., 2017, 35(6):488-495 | DOI: 10.17221/82/2017-CJFS Principal component analysis (PCA) and cluster analysis (CA) were used to define the geographical origin of three types of monofloral (chestnut, linden, and acacia), two types of multifloral (meadow and mixed), and forest honey produced over two consecutive harvest seasons in the Una-Sana Canton (Bosnia and Herzegovina), which is geographically divided into eight sub-regions. Statistical analysis was applied to the measurement of physico-chemical and sensory parameters, as well as micro- and macronutrient (K, Na, Mg, Zn, Fe, Mn, and Al) content, along with some heavy metals (Cd, Pb, and As). Using the PCA method the characteristic parameters for all eight sub-regions were determined, while the CA grouping method was used to determine the characteristic parameters for six sub-regions. Chestnut honey is predominantly found in Cazin, chestnut and linden honey in Bosanska Krupa, chestnut and acacia honey in Bužim, acacia honey in Sanski Most, mixed honey in Velika Kladuša and forest honey in Ključ. |
Radiographic findings in sheep with abomasal phytobezoariasisOriginal PaperS.M. Hashemiasl, S. Azizi, D. TorkamaniVet Med - Czech, 2016, 61(8):436-442 | DOI: 10.17221/9/2016-VETMED The purpose of this study was to characterise the radiographic appearance of abomasal phytobezoars in sheep as well as to evaluate the utility of abdominal radiography to identify them. Twenty-seven fat-tailed Herrick sheep with a clinical suspicion of abomasal impaction were examined radiographically. Abdominal survey radiographs in right lateral recumbency were taken. Abomasal phytobezoars (AP) were seen in abdominal survey radiographs in 25/27 sheep (92%). Their radiographic survey appearance was round-to-oval masses with radiopaque margins and radiopacity similar to the ingesta centrally. An additional gastrographic barium study was performed in six of the sheep, followed by exploratory laparotomy where phytobezoars were removed through abomasotomy. The optimal time to visualise the APs was 48 h post-contrast. A significant correlation was noted between phytobezoars size in radiology and surgery (r = 0.651, P < 0.001). Use of the barium study can improve the phytobezoar-ingesta contrast and visibility of the phytobezoars. Plain radiography with sheep positioned in right lateral recumbency is a useful supplementary technique which can be used to evaluate abomasal phytobezoariasis. This study shows that radiography is a suitable diagnostic method for detecting the presence of, but not the number of, abomasal phytobezoars in sheep. |
Successful elimination of PRRS virus from an infected farrow-to-finish herd by vaccinationOriginal PaperM. Toman, V. Celer, J. SmolaVet Med - Czech, 2017, 62(10):553-558 | DOI: 10.17221/68/2017-VETMED Porcine reproductive and respiratory syndrome (PRRS) virus represents a major threat to the swine industry worldwide. This study describes the transmission of a European strain of PRRS-1 to a pig farm leading to the spread of the virus to different age categories of pigs and the development of clinical signs in pregnant sows and piglets. Porcine reproductive and respiratory syndrome aetiology was confirmed by serological tests and by virus isolation and subsequent sequencing. Repeated mass vaccination using modified live virus was used to synchronise the level of PRRS-specific immunity in all age categories of animals and to hinder virus circulation in the herd. Four months after the second mass vaccination, regular modified live virus vaccination of sows and gilts was implemented. Introduction of sentinel animals demonstrated cessation of virus circulation and the success of the control programme. |
Effects of insecticides used against the European corn borer on thrips abundance on maizeOriginal PaperPaweł Krystian Bereś, Halina Kucharczyk, Dariusz GórskiPlant Protect. Sci., 2017, 53(1):44-49 | DOI: 10.17221/78/2016-PPS The effect of a single chemical treatment against Ostrinia nubilalis (Hbn.) on thrips abundance on maize in south-eastern Poland was evaluated. Two insecticides: Karate Zeon 050 CS, containing lambda-cyhalothrin, and Proteus 110 OD, containing thiacloprid with deltamethrin, were tested. Maize was sprayed in the second ten days of July, during the abundant occurrence of O. nubilalis larvae, which coincided with the population peak of thrips on plants. The tested active substances showed high effectiveness against thrips, but a better effect, reflected in a decrease in thrips abundance, was found for the mixture of thiacloprid with deltamethrin. The tested insecticides significantly reduced the population of thrips for up to 14 days after treatment. |
Antagonistic activity of selected bacteria of the soil environment of carrotOriginal PaperElżbieta PATKOWSKA, Marzena BŁAŻEWICZ-WOŹNIAK, Dariusz WACHPlant Soil Environ., 2017, 63(6):277-281 | DOI: 10.17221/216/2017-PSE The purpose of the present studies was to determine the antagonistic effect of bacteria Bacillus spp. and Pseudomonas spp. towards selected fungi from the soil environment of carrot. Oats (Avena sativa L.), tansy phacelia (Phacelia tanacetifolia Bentham) and vetch (Vicia satica L.) were used as cover crops in the cultivation of this plant. In the traditional cultivation of carrot the population of bacteria was the smallest, while after the application of oats it was the largest. Laboratory tests showed that cover crops promoted the development of antagonistic Bacillus spp. and Pseudomonas spp. Irrespective of the experimental treatment, those bacteria were the most effective in limiting the growth and development of Fusarium oxysporum and Thanatephorus cucumeris (syn. Rhizoctonia solani), while being less effective towards Altenaria dauci and Alternaria radicina, and the least towards Sclerotinia sclerotiorum. The best total antagonistic effect of Pseudomonas spp. and Bacillus spp. towards the tested fungi was found after using oats and vetch, while the worst - in the traditional cultivation of carrot. |
Investigation of solar-powered drip irrigation: The case study of the Jordan ValleyShort CommunicationChristoforos Perakis, George Kyriakarakos, Nabeel Bani Hani, Shaker Hammad, Markos DamasiotisRes. Agr. Eng., 2017, 63(4):168-171 | DOI: 10.17221/12/2016-RAE Agriculture is the sector that consumes by far most water globally. Much research efforts aim at minimizing losses through the use of drip irrigation. Rural agricultural areas often do not have access to a main electrical grid to power the pumps needed for drip irrigation; it reduces the options in paying for a grid extension, getting a diesel generator or investing in an off-grid renewable energy system. In this paper, these alternatives are assessed technically and economically under real world conditions through the Jordan Valley case study. The results show that the autonomous photovoltaic (PV)-battery system is preferable to the use of a diesel generator, as well as it is preferable to the main grid extension in many cases depending on the cost of grid electricity and distance from the grid. For current subsidized grid electricity retail price to farmers, the PV-battery system becomes more attractive above a 300 m distance from the grid, while if the actual cost of electricity production in Jordan is taken into account, then it breaks even to 128 m. |
Trade practices of retail chains as far as the transaction cost analysis in relationships manufacturer - retailer are concerned in the milk industryJaroslav KITA, Katarína MÁZIKOVÁ, Marta GROSSMANOVÁ, Pavol KITAAgric. Econ. - Czech, 2012, 58(6):264-274 | DOI: 10.17221/61/2011-AGRICECON The primary purpose of this article is to discuss the trade practices used by retail chains from the point of view of the possible solutions of conflicts between the members of the distribution channel, which have an influence on selling prices for the end users. It is based on the knowledge of the theory of the transaction cost analysis, which makes it possible for the members of the distribution channel to make decisions on the number of forms of the organization in order to realize their activities successfully. In this framework and using the example of milk, the article shows the trade practices of retail chains to improve the relationships manufacturer - retailer in the Slovak consumer market. |
Transformation of the agricultural financial system in the age of globalisationOriginal PaperAnna BRZOZOWSKA, Dagmara BUBEL, Antonina KALINICHENKO, Larysa NEKRASENKOAgric. Econ. - Czech, 2017, 63(12):548-558 | DOI: 10.17221/155/2016-AGRICECON The paper is an attempt to address the advantages and risks connected with the wave of financial globalisation, with a focus on its impact on financial policy in European agriculture. The aim of the paper is to identify the basic conditions of the functioning and change of the financial system of agriculture under the conditions of the globalisation of financial markets. Financial globalisation, also referred to as financial integration or openness, is understood as an increase in global ties and interdependences caused by capital flows. Potentially, globalisation can bring a lot of benefits, which are manifested in an acceleration of economic growth and decreased fluctuation in consumption, which should further improve the level of overall prosperity. On the other hand, however, internationalisation of financial flows entails a range of threats, including the possibility of crisis. |
Structure of the montane taiga forests of West Khentii, Northern MongoliaM. Mühlenberg, J. Appelfelder, H. Hoffmann, E. Ayush, K.J. WilsonJ. For. Sci., 2012, 58(2):45-56 | DOI: 10.17221/97/2010-JFS Studies were undertaken to investigate the composition, structure and diversity of four different types of North Mongolian montane forest near the southern border of the taiga. These forest types, classified as willow-poplar, larch-birch, spruce-fir and Siberian-pine forests, were found to be significantly different with respect to the elevational gradient. In the study area, two fire regimes could be distinguished at lower and drier elevations, frequent surface fires resulted in less diverse forests comprising coniferous species, which in their adult form were found to be fire-resistant, burn-colonizing and light-demanding deciduous tree species. In contrast, the forests colonizing the moist, higher elevations and shaded slopes had a higher diversity of tree species with greater basal area, higher proportion of deadwood, and more regenerating trees; here the coniferous shade trees experienced infrequent but destructive treetop fires. Overall, our results showed that the four forest types differed in composition according to the tree species, diameter and height classes. |
Comparison of qualitative and quantitative properties of the wings, necks and offal of chicken broilers from organic and conventional production systemsOriginal PaperF.A.A. Abdullah, H. BuchtovaVet Med - Czech, 2016, 61(11):643-651 | DOI: 10.17221/286/2015-VETMED The aim of the present study was to investigate qualitative and quantitative properties of wings, offal (liver, heart and gizzard) and necks of chickens from organic and conventional production systems, currently available on the market for Czech consumers. Production properties (yield and weight), surface colour (lightness, redness, yellowness) and chemical indicators (dry matter, total protein, net protein, collagen, hydroxyproline, fat, ash and phosphorus) were evaluated in fresh chicken broilers. Conventionally produced chickens had higher carcass yields but higher wing yields and weights were observed in organic broilers. The skin, bones, tip (left wings) and the meat with skin (right wings) of organic broilers were heavier (P < 0.05) than those of conventional chickens. The dry matter and total protein content of deboned organic broiler wings (meat with skin) was greater (P < 0.01) than those of conventional wings. Similarly as for yields, the offal (heart, gizzard) and necks of organic chickens had significantly (P < 0.01) higher weights in comparison with conventional chickens. Colour indicators showed that the external surface of the livers, necks and gizzards (muscle) from organic chickens were darker (lightness; P < 0.01). Total protein content in livers, hearts and necks of organic chickens was greater; fat content in the livers and necks of organic broilers was also higher (P < 0.05) than those of conventional broilers. The ash and phosphorus in the necks of conventional broilers was higher (P < 0.05) than in organic chickens. This study indicates that the quantity and quality of offal and neck from organic broilers are slightly superior compared to conventional chickens. |
Evaluation of combining ability in ornamental sunflower for floral and morphological traitsOriginal PaperSandra CVEJIĆ, Siniša JOCIĆ, Emina MLADENOVIĆ, Milan JOCKOVIĆ, Dragana MILADINOVIĆ, Ivana IMEROVSKI, Aleksandra DIMITRIJEVIĆCzech J. Genet. Plant Breed., 2017, 53(2):83-88 | DOI: 10.17221/50/2016-CJGPB Ornamental sunflowers are widely cultivated for use as cut flowers and/or as garden plants. The objective of the study was to investigate breeding values of new F1 ornamental sunflower hybrids using incomplete diallel crossing of four ornamental inbred lines: Heliopa, Talia, Iskra and Neoplanta. Six traits important for ornamental market use were studied. Additive gene effects prevailed in most tested traits except for lateral floral diameter and duration of lateral flowering, which exhibited non-additive effects. The results indicated that the Talia × Neoplanta hybrid combination was the most promising for cut flowers due to long and strong branches, relatively big lateral flowers while Heliopa × Iskra and Heliopa × Talia hybrids were suitable for use as garden plants due to strong plant habit, long flowering time and desirable plant height. The results obtained from this study will be helpful for further ornamental sunflower breeding. |
