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Resistance of Maize Inbreds and their Hybrids to Fusarium Stalk RotT. Ledečan, D. Šumić, I. Brkić, A. Jambrović, Z. ZdunićCzech J. Genet. Plant Breed., 2003, 39(1):15-20 | DOI: 10.17221/3716-CJGPB The resistance of 35 inbred lines and their 70 hybrids with two testers to stalk rot is described and the results of natural and artificial stalk infection are compared. A mixture of Fusarium spp. spores was used for artificial infections. The disease was scored for two years. Inbreds and hybrids differed significantly in resistance and infection types in both years. Generally, disease scores of hybrids were lower than of inbreds. No close association was found between lines and their testcross hybrids (r = -0.06 to 0.29) and between hybrids with the two testers (r = -0.04 to 0.38). The correlation coefficients of disease scores after natural and artificial infection were in inbreds and in hybrids highly significant (r = 0.45-0.87). The results suggest, that Fusarium stalk rot resistance should be tested in both inbreds and hybrids. We recommend for maize breeding, that tests with artificial infection should be followed by tests under natural infection. |
Causes and Consequences of a Flood Wave on the Lower Reach of the Dyje River Near BřeclavOriginal PaperMilan Palát, Alois Prax, Milan Palát jr., Jaroslav RožnovskýSoil & Water Res., 2010, 5(4):121-127 | DOI: 10.17221/32/2010-SWR The settlements situated on broad flat floodplains of rivers are threatened by floods during increased water flows in the rivers. The floodplain of the Dyje river situated in the area between the Nové Mlýny water reservoir and Břeclav has been protected from former annual floods since the 70s of the last century due to the water-management measures. The realised measures including the construction of the new floodway protect the town of Břeclav as well. A long-term research into the soil water regime of the floodplain forest is underway in the region. The results obtained document its historical evolution and current status. Only in the early April of 2006 (i.e. after 34 years), an unexpected "flash flood" occurred again due to a specific climatic situation. The combination of the high snow cover in higher parts of the basin and a rapid warming up caused an intensive runoff. The so-called dry polder (floodplain forests, meadows and fields) above Břeclav protected the town and its infrastructure from potential catastrophic consequences. |
Regional classification of the Czech Republic, based on the production orientation of agricultural enterprisesF. Střeleček, J. LososováAgric. Econ. - Czech, 2005, 51(10):435-451 | DOI: 10.17221/5141-AGRICECON ThearticledescribesthelayoutofplantproductionandlivestockdensityintheCzechRepublicin2003 according to a sample survey of the Czech Statistical Office.Theproductionorientationof agriculturalenterprisesis definedas a small amount of market products that represent the predominant part of revenues. Grain crops, pork meat, milk and non-food crops represent the production orientation of Czech agriculture. Thesecommoditiesrepresentmorethan70%oftotal agricultural production in the Czech Republic. In this article, the authors have attempted to definearegionalclassification according to production orientation of agricultural enterprises and intensity of agricultural production. |
The cisterna chyli and thoracic duct in pigs (Sus scrofa domestica)M. Duras Gomercic, T. Trbojevic Vukicevic, T. Gomercic, A. Galov, T. Fruk, H. GomercicVet Med - Czech, 2010, 55(1):30-34 | DOI: 10.17221/21/2010-VETMED Anatomical variations of the thoracic duct course are common in humans and domestic animals. They are important in thoracic surgery and in application of surgical techniques in experimental animals. The pig is a frequently used animal model due to numerous similarities between human and porcine anatomy and physiology. We revealed the position of the cisterna chyli, and the origin, course and termination of the thoracic duct by fine dissection on fifteen Yorkshire pig carcasses. The pigs were 2.5 months old with a body mass range from 10 to 15 kg. In this study we present our macroscopic observations. The cisterna chyli and thoracic duct had a common position, form and course in ten (67%) specimens. Anatomical variations of the precardiac course of the thoracic duct were observed in five animals (33%). Knowledge of these anatomical features should enhance the use of swine as an experimental model. |
Chronic cannulation in the small intestine of feral pigeons (Columba livia) to assess bioavailabilityJ.G. Chediack, F.D. Cid, S.V. Fasulo, E. Caviedes-VidalVet Med - Czech, 2010, 55(8):383-388 | DOI: 10.17221/2957-VETMED We improved a method of chronic duodenal cannulation to study intestinal transport of solutes in an in vivo model (pigeon, Columba livia). A hypoallergenic cannula was inserted into the proximal part of the small intestine of pigeons and used for solution administration. Recovery from surgery was extremely rapid and animals started eating and drinking within a day. After surgery, the body mass of cannulated pigeons was stable, and no adverse effects in the weight could be detected. The method is simple, economical and useful to determine intestinal bioavailability of solutes, for nutritional and ecological studies, in intact animals without influence of anesthesia. |
Effects of Nigella sativa and silver sulfadiazine on burn wound healing in ratsI. Yaman, A.S. Durmus, S. Ceribasi, M. YamanVet Med - Czech, 2010, 55(12):619-624 | DOI: 10.17221/2948-VETMED This experiment was conducted in order to compare the effects of Nigella sativa (NS) and silver sulfadiazine (SSD) cream on healing of burn wounds in rats. Fifty four adult, male Wistar-albino rats were divided into three groups of equal numbers. A burn was generated on the backs of all the rats. The burned areas in the first, second and third groups were covered with daily cold cream (control), SSD cream and NS cream (50% NS oil + 50% cold cream), respectively. Four, nine, and 14 days later, the rats were sacrificed and the burned skin tissue samples were collected for histopathological examinations. Histopatological evaluations on the 4th, 9th and 14th days showed burn healing to be better in the NS and SSD groups with respect to the control group. Wound healing was significantly different among the groups at 4th, 9th and 14th days (P < 0.001). In conclusion, application of NS and SSD cream are effective in healing burn related skin wounds in the rat model. |
New approaches to the operative leasing accountingPatrik SVOBODAAgric. Econ. - Czech, 2010, 56(7):341-348 | DOI: 10.17221/43/2010-AGRICECON : In 2009, the IASB and FASB started a public discussion and commenced work on a project referring to the recording of leasing in financial statements of companies using the International Accounting Standards for reporting. Contrary to most national regulations, the current solution of the IAS and US GAAP require a completely different recording of operative and financial leasing in financial statements, and consider the transfer of risks and leasing rewards as the main criteria for their division. Such an approach, however, has been repeatedly criticized by many users of financial statements, because transactions that are very similar or even identical economically are caught up in a completely different manner depending on whether the recording entity evaluates the leasing subjectively. It may even lead to the manipulation of recording according to the requirements and intents of the recording entity. This contribution analyzes the advantages and disadvantages of some discussed procedures, in particular of those which could replace the current standards in the future (recording based on the use of the concept of right to use), and various effects on the report on the financial situation and profit or loss development when using the current methods or the newly suggested methods during the existence of leasing. The impact is demonstrated on a specific example of business premises leased by an entity conducting business in agriculture. We also focus on different approaches of the IASB and FASB to some related issues, for example concerning the update of the applied incremental interest rates, the conditioned parts of rent and the guarantees for the residual value. |
Characteristics of coarse woody debris in successional stages of natural beech (Fagus orientalis) forests of Northern IranK. Sefidi, M. R. Marvie MohadjerJ. For. Sci., 2010, 56(1):7-17 | DOI: 10.17221/113/2008-JFS Coarse woody debris (CWD) is an important structural and functional component in forests in Northern Iran. In this study we determine the temporal patterns of CWD in Kheyroud Forests by examining the CWD volume in different decay classes and size classes along a chronosequence of secondary forest succession. The volume of CWD followed the general "U-shaped" temporal trend: the highest in the late successional forest (51.25 m3.ha-1), lowest in the middle successional forest (25.95 m3.ha-1) and intermediate in the early successional forest (37.05 m3.ha-1). The late successional forest had a larger amount of logs, snags and stumps than the other two forests. In contrast, the snag volume did not differ between the late and middle successional forest. CWD in decay classes III and V was greater in the late successional forest than that in the other two forests, while CWD in decay classes II and I did not differ among the three successional forests. CWD in class II and I was significantly higher in the early successional forest than that in the middle successional forest. In the early and middle successional forests, CWD in early decay class was dominated by Carpinus betulus L. followed by Fagus orientalis Lipsky. In the late successional forest, CWD in early decay class was dominated by Fagus orientalis while CWD in the late decay class was dominated by Carpinus betulus. While forest succession had a large influence on the amount of CWD in different decay classes, it had no effect on CWD distribution among the different size classes. Our results suggest that both anthropogenic and natural disturbances have had a long-term effect on the distribution of CWD among three forests. |
Mechanical weeding of Rumex obtusifolius L. under different N, P and K availabilities in permanent grasslandL. Strnad, M. Hejcman, V. Křišťálová, P. Hejcmanová, V. PavlůPlant Soil Environ., 2010, 56(8):393-399 | DOI: 10.17221/83/2010-PSE In Europe, Rumex obtusifolius L. is the most problematic grassland weed species, especially under the conditions of organic farming. The aims of this study were (1) to investigate the effectiveness of repeated mechanical weeding of R. obtusifolius from the permanent sward, cut two or three times per year, by digging the plants out from 5 cm below the soil surface, and (2) to test the effect of nutrient availability on the effectiveness of mechanical weeding. In 2007, the manipulative experiment was established on permanent grassland infested by R. obtusifolius using the following fertilizer treatments: control, P, N, NP and NPK. Plants of R. obtusifolius were removed eight times during three vegetation seasons. No significant decrease in the density of R. obtusifolius was recorded after three vegetation seasons and density was not significantly affected by fertilizer treatment. The cover of R. obtusifolius decreased slightly, but significantly, over the study period from 7.5% to 4.5%. The cover of R. obtusifolius was only marginally affected by fertilizer treatment. Mechanical weeding by digging the plants out from 5 cm below the ground is not a sufficient method of control for R. obtusifolius in infested fertile grasslands, even when applied eight times during three vegetation seasons. |
Successful reintroduction of ancient grape varieties in the Czech RepublicO.M. Jandurová, R. CasalCzech J. Genet. Plant Breed., 2010, 46(10):S19-S20 | DOI: 10.17221/2674-CJGPB Changes in the law have allowed Czech vintners to produce land wines from some ancient varieties. There is the chance now for the reintroduction of such varieties, when we can clearly explain the pros and cons of these varieties in comparison with the common varieties; plus be able to indicate the possible benefits for those vintners who start to plant these ancient varieties. The successful reintroduction of these ancient varieties could enlarge the selection of wines for sale, and represents an alternative way of storing genetics resources, similar to on-farm conservation. |
Improvement of developmental competence of aged porcine oocytes by means of the synergistic effect of insulin-like growth factor-1 (IGF-1) and epidermal growth factor (EGF)I. Petrová, R. Rajmon, M. Sedmíková, Z. Kuthanová, F. Jílek, J. RozinekCzech J. Anim. Sci., 2005, 50(7):300-310 | DOI: 10.17221/4171-CJAS There is a constant increase in demand for large numbers of high-quality oocytes of domestic mammals for various reproductive biotechnologies. Prolonged in vitro culture represents one of the many possible ways of meeting this demand. However, oocytes further cultured in vitro after reaching the stage of metaphase II undergo the complex process called "ageing", which decreases the quality of oocytes. The aim of the present study was to improve the culture conditions for in vitro matured porcine oocytes by supplement of the epidermal growth factor (EGF) or the insulin-like growth factor 1 (IGF-1) in order to reduce the adverse effects of ageing. Supplement of either EGF or IGF-1 had no significant effect on the ageing of porcine oocytes. Significant effects were demonstrated when the oocytes were cultured with both EGF and IGF-1. A combination of 10 µg EGF/ml with 25 ng IGF-1/ml was the most effective. Oocytes aged under these conditions retained very good developmental competence. We observed development to the morula (21%) or blastocyst (25%) stage in oocytes aged for 1 day with EGF and IGF-1. Porcine oocytes matured in vitro are more resistant to the ageing when cultured in the presence of both EGF and IGF-1 and these conditions retain an elevated developmental competence for a certain time. |
Social and territorial identifications of the rural population and its activating potentialM. StrussováAgric. Econ. - Czech, 2005, 51(12):565-574 | DOI: 10.17221/5152-AGRICECON This paper has a theoretical and analytical character and it searches for the possibilities to activate the rural population by means of its social and territorial identifications. The objective of the paper is to point at some connections relating to social and territorial identity of the rural population, outlined by classic quantitative marks based upon the population up to 5 000. We base the above on the results of the representative sociological survey allowing us to analyze some of the selected problems of the social and territorial identity of the rural population, in particular its relation to residence, residential stability and autochthony, development prospects of residences, quality of social and civil relation in the rural area. |
Control of Hoplocampa testudinea using the extract from Quassia amara in organic apple growingV. Psota, J. Ouředníčková, V. FaltaHort. Sci. (Prague), 2010, 37(4):139-144 | DOI: 10.17221/76/2009-HORTSCI In 2008 and 2009 the effects of quassin and neoquassin (oxygenated triterpenes) on apple sawfly (Hoplocampa testudinea Klug, 1814) were studied. In the Czech Republic, monitoring was carried out in small-plot trials and in one laboratory experiment. The extract containing quassin and neoquassin was made by boiling wood chips of a tropical shrub Quassia amara L. (Sapindales: Simaroubaceae). The experimental dosages were 3, 4.5, 6, and 9.25 kg of wood chips/ha. Spray treatment with the quassia extract was carried out just before most larvae hatched out. It was statistically proven that the extract from the wood of Q. amara reduced the apple sawfly infestation of fruitlets. Extract in the dosage corresponding to 3-4.5 kg of quassia wood chips for 1/ha appeared as optimal. The efficacy of these dosages was approximately 40-50%, and the efficacy above 80% was record. |
Inguinal-scrotal herniation and torsion of the large colon in an adult Andalusian stallion: a case reportF.J. Mendoza, A. Perez-Ecija, J.C. EstepaVet Med - Czech, 2010, 55(6):281-284 | DOI: 10.17221/2993-VETMED A 3-year-old Andalusian stallion was referred to the Veterinary Teaching Hospital of the University of Cordoba due to acute onset of colic pain. At admission, the horse presented a pronounced distension of the inguinal and scrotal region which was cold and painful on palpation. On rectal palpation no small intestine gas distention was noticed, and the left large colon was detected protruding into the left internal inguinal ring. The percutaneous scrotal sonogram showed an intestinal loop which had moved into the scrotal bag close to the left testicle. The horse was diagnosed with indirect acquired left inguinal hernia. The necropsy revealed an impacted and twisted pelvic flexure in the vaginal space. To the authors' knowledge, this report is the first that describes a clinical case of inguinal-scrotal herniation and torsion of the pelvic flexure into the inguinal canal in an adult stallion associated with an impaction of the ascending colon. |
Guttural pouch mycosis in a donkey (Equus asinus): a case reportF. Laus, E. Paggi, M. Cerquetella, D. Spaziante, A. Spaterna, B. TeseiVet Med - Czech, 2010, 55(11):561-565 | DOI: 10.17221/3011-VETMED Guttural pouch mycosis is an emergency disease of the upper respiratory tract in equine species. In the present report a case of guttural pouch mycosis in a female, seven year-old pregnant donkey is described. A serious dyspnea which necessitated tracheotomy and preceding epistaxis was the most important clinical feature of guttural pouch mycosis in the donkey. A full and rapid effectiveness of the topical therapy, the protocol for which is described, is the main distinguishing feature with regard to treatment. In the Authors' knowledge a detailed description of clinical features, treatment and follow up of guttural pouch mycosis in a donkey is not available in the scientific literature. The anatomical and physiological peculiarity of donkeys could explain some of the differences with horses in clinical presentation and therapeutic management. |
Types of agricultural enterprises in the high production region in Slovakia (sample area of the Nitra district)Jana NÉMETHOVÁAgric. Econ. - Czech, 2010, 56(1):25-31 | DOI: 10.17221/61/2009-AGRICECON : First part of the paper assesses the physical-geographical locality factors of the agricultural production in the district of Nitra. Agricultural production in a typical high production region has been analysed (structure of the enterprises legal forms, focus of production, number of employees). The second part examines the types of the most important agricultural enterprises according to the selected economic indicators such as economic efficiency, labour productivity and relative employment. These indicators are the best ones to express the economic power of agricultural entities and farming efficiency. |
Rodent-caused damage to forest trees from the viewpoint of forestry practiceJ. Kamler, K. Turek, M. Homolka, E. BukorJ. For. Sci., 2010, 56(6):265-270 | DOI: 10.17221/70/2009-JFS Small mammals cause serious damage to forests but there is only little knowledge of their ecology and possibilities of plantation protection. The objective of our study was to collect information on the damage caused by rodents to plantations of forest tree species. Data were obtained from a survey conducted in 2008 that was aimed at damage caused by small mammals. Questionnaires were sent mostly to foresters engaged in the Lesy CR state enterprise. We obtained usable data from 316 foresters. The response rate was 81%. It was confirmed that rodents cause significant damage all over the Czech Republic and that the occurrence of damage cannot be easily predicted with certainty as significant damage may appear perhaps in a small part of the threatened plantations where the key conditions for small mammals have been fulfilled. The main factors which affected probability of damage include: presence of a woody species attractive to rodents; suitable structure of ground vegetation enabling the pest species to breed sufficiently during the vegetation period; and also long-lasting snow cover. The current approach of forestry practice to damage by small mammals is considerably passive and we are missing an alert system of threat to stands and a methodology of dealing with problematic situations. Most of the foresters are uninterested in small mammals and many have only very smattering knowledge of the dangerousness of individual species and their ecological requirements. The use of rodenticides is expensive and the most effective and economic measure to lower damage by small mammals is to support forest management favouring natural regeneration of forest stands. |
The effect of different nitrogen nutrition on proline and asparagine content in plantM. Neuberg, D. Pavlíková, M. Pavlík, J. BalíkPlant Soil Environ., 2010, 56(7):305-311 | DOI: 10.17221/47/2010-PSE Mixture of plants (Festulolium: Trifolium pretense L.) was grown in the pot experiment with different forms of nitrogen nutrition. The fertilizers (ammonium sulphate or calcium nitrate or ammonium nitrate) were applied conventionally or according to the CULTAN method (Controlled Uptake Long Term Ammonium Nutrition). The absolute growth rate (AGR) and contents of free asparagine and proline in the aboveground biomass were determined. Additional nitrogen increased the dry weight of biomass and AGR of the plants treated with sidedress application in comparison with plants treated with the CULTAN method. The results suggest increased levels of free proline in CULTAN-treated plants while those of asparagine did not increase. The significance of these observations to the loss of potential yield and the relationship between methods of application is considered. |
Physiologic specialization of wheat leaf rust (Puccinia triticina Eriks.) in the Slovak Republic in 2005, 2006 and 2008Original PaperA. Hanzalová, J. Huszár, E. Herzová, P. BartošCzech J. Genet. Plant Breed., 2010, 46(3):114-121 | DOI: 10.17221/38/2010-CJGPB In 2005, 2006 and 2008 the virulence of wheat leaf rust population was studied on Thatcher near-isogenic lines with Lr1, Lr2a, Lr2b, Lr2c, Lr3a, Lr9, Lr10, Lr13, Lr15, Lr17, Lr19, Lr21, Lr23, Lr24, Lr26 and Lr28. Samples of leaf rust (141 in total) were obtained from different parts of Slovakia. Resistance gene Lr9 was effective to all tested isolates except three isolates from 2008. No virulence was found to Lr19 and genes Lr24 and Lr28 were also highly effective. Low incidence of virulence to Lr2a was observed. Sixty-five winter wheat cultivars registered in Slovakia were tested with seven leaf rust isolates in the greenhouse. Cultivar Bona Dea was the most resistant of all. |
Walnut (Juglans regia L.) selection in SerbiaS. Cerović, B. Gološin, J. Ninić Todorović, S. Bijelić, V. OgnjanovHort. Sci. (Prague), 2010, 37(1):1-5 | DOI: 10.17221/25/2009-HORTSCI The domestic population of walnut (Juglans regia L.) in Serbia is highly heterogeneous as a result of many centuries of propagation from seed. This paper describes variation observed in this population over the past four decades. The date of budbreak showed a 50-day range, and the date of leaf drop a 32-day range. Average nut weight ranged from 3.3 g to 29.0 g and the kernel percentage from 26.2% to 64.3%. The number of female flowers per inflorescence ranged from 1 to 32 and the number of nuts per cluster from 1 to 15. The majority of Serbian walnut seedlings had inferior traits, although a few genotypes with excellent traits were also found. Five superior selections have been released as cultivars, and additional selections await official release. To date, over 1,000 ha of orchards have been planted in Serbia using these walnut cultivars and selections. |
Upper eyelid and medial canthus reconstructive surgery after histiocytoma resection in a dog: a case reportM. Lew, S. Lew, A. RozickaVet Med - Czech, 2010, 55(3):137-143 | DOI: 10.17221/69/2010-VETMED A six year old crossbred male dog presented with non-pigmented, pale pink, unhaired, ulcerative tumor of the medial canthus and upper eyelid region. As treatment, surgery was proposed. During the surgery complete excision of the tumor was performed. The extent of skin loss, especially in the upper eyelid required plastic reconstruction by pedicle flap transposition. The soft skin of the cheek was chosen as a graft donor site. The postoperative period proceeded without any complications and ended with successful engraftment. The soft cheek skin did not impede movement of the upper eyelid. Histopathological examination indicated histiocytoma and tumor-free excisional margins were confirmed. There has been no recurrence during the subsequent 12 month period. |
Effects of an aerobic training program on oxidative stress biomarkers in bullsB.M. Escribano, I. Tunez, F. Requena, M.D. Rubio, R. De Miguel, P. Montilla, P. Tovar, E.I. AgueraVet Med - Czech, 2010, 55(9):422-428 | DOI: 10.17221/2979-VETMED The aim of this study was to evaluate the effect of aerobic training (16 weeks - T1 and 24 weeks - T2) on oxidative stress biomarkers. To this end, GSH, GSH-peroxidase (GSH-Px) and catalase (CAT) activity were analysed in plasma. Nine bulls (3-4 years), were included in this work. The exercise training protocol was performed in a track ("taurodromo") three days per week for 24 weeks and consisted of 400 m warming up, 1200 m to 4-5 m/s, two minutes' resting, 1200 m to 4-5 m/s and, finally, 400 m walking. The results reflected that GSH-Px activity was higher at T1 (6.18 ± 0.45) than at baseline (T0; 2.31 ± 0.08) while the GSH level (2.98 ± 0.37) was lower vs. T0 (14.59 ± 3.40). Moreover, there were significant increases in GSH-Px (18.23 ± 1.36) and CAT (2.52 ± 0.04) activities and the recovery of basal values in GSH (11.75 ± 2.84) in T2. In conclusion, the type of training carried out in this study involved two well-defined stages: (i) a period of perturbation, followed by (ii) adaptation. The former stage was characterised by the induction of oxidative stress manifested as a decrease in the GSH, and the latter (T2) by the recovery of this non-enzymatic antioxidant. |
Influence of phytotechnology on growth, production and leaf area index of black walnut (Juglans nigra L.) monocultures in SlovakiaF. Tokár, E. KrekulováJ. For. Sci., 2005, 51(5):213-224 | DOI: 10.17221/4592-JFS In the paper we evaluate the influence of crown thinning with positive selection, different intensity (moderate PRP III and heavy PRP IV) and 5-year frequency on development of growth, production, quality and leaf area index of black walnut (Juglans nigra L.) monocultures growing on the series of three permanent research plots (PRP) Sikenica (Levice Forest Enterprise, Levice Forest District) as observed in 1978-2003. The trends of development of mean stem, basal area, standing volume and aboveground dendromass (in dry matter) were mainly influenced by heavy crown thinning. The index of growth was as follows: basal area 169.01%, standing volume 262.12%, aboveground dendromass (in dry matter) 324.48%. At the age of 64 years the black walnut monocultures tended by heavy crown thinning had the following parameters: basal area 31.03 m2/ha, standing volume 463.88 m3/ha and aboveground dendromass 194.98 t/ha. Mean periodic increment reached the values: basal area 0.51 m2/ha/year, standing volume 11.48 m3/ha/year and dendromass 5.39 t/ha/year. The index of increment percent growth was: basal area + 31.75%, growing stock + 30.85% and dendromass + 0.79%, compared to the control. The total production was also significantly influenced by heavy thinning. At the stand age of 64 years the tended stands had the total basal area of 4.92 m2/ha, total volume production of 572.77 m3/ha and total weight production of 246.04 t/ha. The total mean increment of basal area is 0.67 m2/ha/year, of volume 8.95 m3/ha/year and of weight 3.84 t/ha/year, which is by 24.07%, 23.96% and 16.01% more than on the control plot. The leaf area index at the age of 64 years ranges from 6.54 ha/ha (PRP III) to 7.82 ha/ha (PRP V). Dendrochronological analyses revealed minimum widths of annual rings in the years 1952, 1961, 1968, 1971, 1975, 1981, 1983, 1985, 1993, 2000, maximum ones in 1951, 1957, 1959, 1967, 1974, 1979, 1982, 1984, 1989, 1999. |
Different approaches to the classification of vertical structure in homogeneous and heterogeneous forestsV. Šebeň, M. BošeľaJ. For. Sci., 2010, 56(4):171-176 | DOI: 10.17221/49/2009-JFS The paper shows difficulties in the evaluation of the forest status when considering forests with different height structure (uneven-aged forests). It is the main problem in categorizing such forests. Concerning the actual forest management conception in Slovakia, it is assumed that the area of forests with close-to-nature management system will increase. It leads to more structured forests, as for the tree species, age, height, as well as the spatial structure. The typical vertically homogeneous forests account for only 50% of all Slovak forests, according to results from the National Forest Inventory in Slovakia (NFI SR). During the processing of NFI data the stands were divided into 2 classes as follows: (i) vertically homogeneous stands, which are classified into nine growth stages; (ii) vertically heterogeneous stands, which are classified into two growth stages (lower and advanced), and stands in the process of regeneration. New approaches are not based on the visual subjective estimation of forest homogeneity, but on objective analyses of measured values from inventory plots (tree heights, diameters, and age). The paper shows a new approach to the classification of forest stands on an example of the variability of measured heights on inventory plots from NFI. |
The influence of feeding diets containing white cheese, produced with prebiotics and the potentially probiotic Lactobacillus plantarum strain, on the gastrointestinal microflora of ratsMonika Modzelewska-Kapituła, Jan Kłobukowski, Lucyna Kłębukowska, Danuta Wiśniewska-PantakCzech J. Food Sci., 2010, 28(2):139-145 | DOI: 10.17221/187/2008-CJFS The effects of inulin HPX and maltodextrins, and also the potentially probiotic Lactobacillus plantarum 14 strain, used separately and in combination in white cheese production, on the gastrointestinal microflora of Wistar rats was investigated. The prebiotic addition to the cheese was 2.5%, whereas probiotic and synbiotic cheeses contained at least 107 CFU/g of live L. plantarum cells. The counts of Bifidobacterium sp., Lactobacillus, coliforms, and the most probable number of anaerobic proteolytic bacteria were evaluated. After a 10-day feeding experiment, significant changes (P < 0.05) were noted in the most probable number of anaerobic proteolytic bacteria spores, which was the highest in the group receiving a diet with the cheese containing the potentially probiotic strain and inulin HPX. A short-time ingestion of low doses of prebiotics or synbiotics did not alter the counts of Lactobacillus, Bifidobacterium, and coliforms in healthy rats. |
State and evaluation of information and communication technologies development in agricultural enterprises in the Czech RepublicJ. Vaněk, E. Červenková, J. Jarolímek, P. ŠimekPlant Soil Environ., 2010, 56(3):144-147 | DOI: 10.17221/212/2009-PSE The paper presents selected information on the newest results of a wide investigation of the state of information and communication technologies development in agricultural production enterprises in the Czech Republic. The investigation was realized in the first half of 2009 with the main aim to analyze development of information infrastructure and actual trends in ICT use in rural regions where most entrepreneurial subjects operate. Besides a presentation of own research results, some obtained pieces of knowledge are then commented and eventually discussed in connection with official outputs of the Czech Statistical Office (CSO), if they have a certain relevance to the given problems. |
On-farm orchards of fruit treesF. Paprštein, J. Sedlák, V. HolubecCzech J. Genet. Plant Breed., 2010, 46(10):S65-S69 | DOI: 10.17221/2669-CJGPB Four on-farm plantations (KRNAP Vrchlabí, the Orchard of Reconciliation in Neratov, Podyjí National Park, and Šumava National Park) were successfully established in a traditional form, with large orchard trees on seedling rootstocks. Certain accessions (cultivars) for on-farm conservation in the given locality were selected, according to the incidence and presentation of genotypes in these particular areas. This information was obtained by localization of fruit trees in situ and the determination of certain cultivars. Nursery stock production for onfarm plantations is described. Because of the longevity of the plantation, seedling rootstocks were used for the production of planting materials for the on-farm plantations. Techniques of on-farm plantation establishment and orchard management are stated within the paper. Four established on-farm plantations have ensured the long-term preservation of landraces in their original areas. |
Macroanatomy of the cranial cervical ganglion in Angora goatsH.H. Ari, Z. Soyguder, S. CinarogluVet Med - Czech, 2010, 55(8):389-393 | DOI: 10.17221/2952-VETMED The cranial cervical ganglia (CCG) in the heads of six adult (three male and three female) Angora goats were dissected in detail. The ganglion was located on the ventral aspect of the tympanic bulla, cranio-ventral to the atlas, medio-ventral to the jugular process and lateral to the longus capitis muscle. The branches of the ganglion were the internal and external carotid nerves, the jugular and laryngopharyngeal nerves and the connecting branches to the vagus and glossopharyngeal nerve. The internal carotid nerve arose as three branches (cranial, caudal and medial) from the cranial region of the ganglion. The cranial branch, the profound petrosal nerve, entered the pterygoid canal. The caudal branch terminated at the trigeminal ganglion. The medial branch terminated at the cavernous sinus. The other cranial branch ramifying from the cranial region of the ganglion was the jugular nerve. The internal carotid and laryngopharyngeal nerves arose from the caudal region of the ganglion. In conclusion, compared with published data on other species, we found differences in the number and courses of the branches ramifying from the CCG of Angora goats and in the branches connected to the vagus, glossopharyngeal and hypoglossal nerves. |
Microbial contamination after sanitation of food contact surfaces in dairy and meat processing plantsJarmila Schlegelová, Vladimir Babák, Martina Holasová, Lucie Konstantinová, Lenka Necidová, Frantisek Šišák, Hana Vlková, Petr Roubal, Zoran JaglicCzech J. Food Sci., 2010, 28(5):450-461 | DOI: 10.17221/65/2009-CJFS The occurrence of Listeria monocytogenes, Salmonella spp., Bacillus cereus, Staphylococcus spp., Enterococcus spp., and Escherichia coli in raw food materials, food products, and on food contact surfaces after sanitation was investigated during the period of 2005-2006 in three dairy cattle farms (120 samples), one dairy (124 samples), and two meat processing plants (160 samples). A total of 1409 isolates were identified. The epidemiological characterisation and determination of the virulence factors and antimicrobial resistance were performed on selected isolates. The level of bacterial contamination generally decreased during the production process (the contamination of food products was lower than that of raw material). However, the contamination of food contact surfaces was relatively high even after sanitation. Moreover, specific microbiological profiles were found on the inside equipment surfaces in dairy facilities, where genetically closely related multi-resistant strains persisting in biofilm communities may occur as demonstrated for staphylococci. Although the occurrence of potentially significant pathogens was not high, the microorganisms such as L. monocytogenes, Salmonella spp., and shiga-toxin positive E. coli principally contaminated the meat processing plants. B. cereus isolates, among which 76% were positive for diarrhogenic enterotoxin, typically occurred on the inside equipment surfaces and in the heat-treated products. |
Impact of long term fertilization on soil water content in HaploborollsC.Y. Song, X.Y. Zhang, X.B. Liu, Y.Y. Sui, Z.L. LiPlant Soil Environ., 2010, 56(9):408-411 | DOI: 10.17221/173/2009-PSE Soil water content under no fertilizer (NF), fertilizer (F) (N:30; P2O5: 45 kg/ha), and fertilizer plus pig manure (FO) (N:30; P2O5: 45 kg/ha; pig manure 15 000 kg/ha in 2003; and 30 000 kg/ha in 2004 and 2005) treatments was measured using neutron probe instrument for a period three years in a long term field experiment in order to investigate the impact of different fertilization treatments on Haploborolls soil water content. Fertilization had significant effects on the soil water content. FO treatment had greater soil water content in 10 cm depth than F treatment with average 9.9% increase (P < 0.05) but lower than NF treatment; however, in the depth from 30 to 90 cm, there was no water content difference between F and FO treatments. Treatment with organic amendments reduced total soil water content on the long term experiment basis. Across the three years, no fertilizer treatment had total soil water content higher by 1.2% and 3.1% than fertilizer treatment and fertilizer plus pig manure treatment within 10 to 210 cm soil profile in most of the months, respectively. |
