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Comparison of acid and alkaline pre-treatment of lignocellulosic materials for biogas productionOriginal PaperBarbora Jankovièová, Miroslav Hutòan, Marianna Nagy Czölderová, Kristína Hencelová, Zuzana ImreováPlant Soil Environ., 2022, 68(4):195-204 | DOI: 10.17221/421/2021-PSE This work deals with the study of a pre-treatment method promoting degradability of lignocellulosic biomass and hence biogas yield therefrom, as this material is challenging to decompose due to its structure. The investigated pre-treatment methods are hydrolysis of the material in NaOH (0.5% and 5%) and H2SO4 (0.5% and 5%) at temperatures of 90-100 °C for 2 h. This work aimed to compare the effects of these pre-treatment methods on the lignocellulosic composition of maize waste (maize stalks, leaves and cobs), rapeseed straw and wheat straw and the biogas yields from its subsequent anaerobic digestion. Pre-treatment by 0.5% NaOH increased the biogas production the most (by 159% for rapeseed straw, 240% for wheat straw and 59% for maize waste) also the degrees of solubilisation was higher, at the same time the proportions of total organic carbon (TOC) in the solid component appear to be sufficiently high, it could be assumed that there has been sufficient disturbance of the material structure. Alkaline methods have proven to be more suitable compared to acid pre-treatment methods, also the use of alkali with a lower concentration has shown to be more efficient, which is more advantageous for use in practice from an environmental and economic point of view. |
Effects of rainfall and the slope gradient on the soil and water loss in a purple soil areaOriginal PaperXinyi Zhang, Qiande Zhu, Jing Sang, Xiaowen DingSoil & Water Res., 2022, 17(4):232-242 | DOI: 10.17221/45/2022-SWR Soil and water losses in purple soil area is becoming an increasingly severe problem, bringing enormous challenges to environmental protection in rural areas. In this study, simulated rainfall experiments were conducted to analyse the effects of rainfall and the slope conditions on the soil and water loss. Purple soil from a typical slope in the Beibei District of Chongqing was selected as the experimental soil. Twenty rainfall scenarios with varying rainfall intensities and slope conditions were created in the simulation. The results indicate that the runoff initiation time shortened with an increased rainfall intensity and slope gradient. There was a logarithmic relationship between the effect of the rainfall amount on both the runoff intensity and sediment yield intensity. Generally, both the runoff and sediment yield showed a positive linear relationship with the rainfall intensity under different slope gradient conditions. In terms of the same rainfall intensity, both the runoff intensity and sediment yield intensity increased with the slope. Furthermore, a critical slope gradient for the soil and water loss was found between 20° and 25°. This study aimed to provide a reference for soil and water conservation research in a purple soil area. |
Households' willingness to pay for forest conservation in Ethiopia: A reviewReviewDiriba AbdetaJ. For. Sci., 2022, 68(11):437-451 | DOI: 10.17221/94/2022-JFS Environmental valuation studies in the context of developing countries have become more frequent in recent years. However, literature which reviews and examines the environmental valuation studies is limited. Thus, this paper performed a literature review on forest contingent valuation studies conducted in the Ethiopian context in the past two decades (2000 to May 2022), focusing on two specific objectives: (i) to examine amounts of resources that households are willing to pay (WTP) for forest conservation, and (ii) to identify determinants of households' WTP. Results indicate the mean lower annual WTP of USD 0.41 (2.63 birr) and 7.04 man-days per household in money and labour time, respectively. Whereas the mean upper annual WTP of USD 53.52 per household in monetary payment and 94.34 man-days per household in labour time contribution are found for the management and conservation of forest in Ethiopia. The finding reveals that there is a limited proportion of the examined studies that included and estimated WTP in a non-monetary payment vehicle, implying a need for future researches on the topic. The result shows that demographic and socio-economic variables, physical assets ownership, institutional and infrastructural services and bid price variables were the main determinants of households' WTP. This suggests that the forest conservation intervention program involving public participation in the country needs to consider the identified determinants of WTP in design and implementation of the program. Moreover, the finding indicates the presence of mixed results on the effect and direction in which some determinants of WTP are affected. This recommends a pressing need for comprehensive future studies on the research theme. |
A case study of agri-food systems in rural Spain: Impacts, responses and institutional lessonsCase StudyRaquel Fernández-González, Félix Puíme-Guillén, Mirela PanaitAgric. Econ. - Czech, 2022, 68(5):159-170 | DOI: 10.17221/65/2022-AGRICECON Galicia is one of Spain's leading regions regarding agricultural and livestock production. In the light of the COVID-19 crisis, the permeability to the economic shocks of these sectors led to an unprecedented recession, given the heterogeneity of their characteristics, resulting in widespread losses. The main objective of this article is to analyze the impact of COVID-19 in the agricultural and livestock sectors in Galicia and, at the same time, identify the degree of affectation in each of these sectors, determine the impact of the pandemic in each province and study the institutional responses to the COVID-19 crisis. For this purpose, financial analysis of these sectors will be carried out through a sample of 998 companies. The results show a variation in operating income of -16.41% in the agricultural sector and -9.15% in the livestock sector in Galicia, although they are mixed across the different provinces of the region. Despite the articulation of a network of public aids and the adoption of new commercialization strategies, there are sub-sectors with high losses, such as the ornamental plant industry and the subsector dedicated to the production of beef. |
Rapid non-destructive identification of selenium-enriched millet based on hyperspectral imaging technologyOriginal PaperFu Zhang, Xiahua Cui, Chaochen Zhang, Weihua Cao, Xinyue Wang, Sanling Fu, Shuai TengCzech J. Food Sci., 2022, 40(6):445-455 | DOI: 10.17221/129/2022-CJFS To meet rapid and non-destructive identification of selenium-enriched agricultural products selenium-enriched millet and ordinary millet were taken as objects. Image regions of interest (ROI) were selected to extract the spectral average value based on hyperspectral imaging technology. Reducing noise by the Savitzky-Golay (SG) smoothing algorithm, variables were used as inputs that were screened by successive projections algorithm (SPA), competitive adaptive reweighted sampling (CARS), uninformative variable elimination (UVE), CARS-SPA, UVE-SPA, and UVE-CARS, while sample variables were used as outputs to build support vector machine (SVM) models. The results showed that the accuracy of CARS-SPA-SVM was 100% in the training set and 99.58% in the test set equivalent to that of CARS-SVM and UVE-CARS-SVM, which was higher than that of SPA-SVM, UVE-SPA-SVM, and UVE-SVM. Therefore, the method of CARS-SPA had superiority, and CARS-SPA-SVM was suitable to identify selenium-enriched millet. Finally, 454.57 nm, 484.98 nm, 885.34 nm, and 937.1 nm, which were obtained by wavelength extraction algorithms, were considered as the sensitive wavelengths of selenium information. This study provided a reference for the identification of selenium-enriched agricultural products. |
Experimental evaluation of milk yield and selected traits of milk quality in Clun Forest ewesOriginal PaperJan Kuchtík, Kvìtoslava ©ustová, Tomá¹ Kopec, Ferenc Pajor, Leona KoneènáCzech J. Anim. Sci., 2023, 68(7):306-312 | DOI: 10.17221/221/2022-CJAS
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Prediction of saturated hydraulic conductivity Ks of agricultural soil using pedotransfer functionsOriginal PaperKamila Bá»ková, Svatopluk Matula, Markéta Miháliková, Eva Hrúzová, David Kwesi Abebrese, Recep Serdar Kara, Cansu AlmazSoil & Water Res., 2023, 18(1):25-32 | DOI: 10.17221/130/2022-SWR The determination of the saturated hydraulic conductivity Ks on a field scale presents a challenge in which several variables have to be considered. As there is no benchmark or reference method for the Ks determination, the suitability of each available method has to be evaluated. This study is aimed at the functional evaluation of three publicly available types of pedotransfer functions (PTFs) with different levels of utilised predictors. In total, ten PTF models were applied to the 56 data sets including the measured Ks value and the required predictors (% sand, silt and clay particles, dry bulk density, and organic matter/organic carbon content). A single agricultural field with a relatively homogenous particle size distribution was selected for the study to evaluate the ability of the PTF to reflect the variability of Ks. The correlation coefficient, coefficient of determination, mean error, and root mean square error were determined to evaluate the Ks prediction quality. The results showed a high variability in Ks within the field; the measured Ks values ranged between 10 and 1261 cm/day. Although the tested PTF models are based on a robust background of soil databases, they could not provide estimates with satisfactory accuracy unless local soil data were incorporated into the PTF development. |
Recent development of economic indicators on Czech dairy farmsOriginal PaperJan Syrùèek, Ludìk Bartoò, Dalibor Øehák, Magdaléna ©tolcová, Jiøí BurdychAgric. Econ. - Czech, 2023, 69(2):45-54 | DOI: 10.17221/381/2022-AGRICECON
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Optimising consumer acceptability of Cauca specialty coffee through roasting profiles on acidity and body sensory attributesOriginal PaperDiego Andrés Campo-Ceballos, Carlos Alberto Gaviria-LópezCzech J. Food Sci., 2023, 41(1):64-72 | DOI: 10.17221/181/2022-CJFS The roasting coffee process is the compilation of time-temperature-dependent physical and chemical transformations induced by heat. Through the study of the time-temperature curve, the correct definition of the degree of roasting of coffee is an area of active and non-trivial research, which intervenes in obtaining consistent roasting profiles reflected in the acceptability of the drink perceived by consumers. This paper used the methodology of response surfaces (RSM) with the central composite design (CCD). A consumer study was conducted with 104 individuals, each tasting 13 cups of specialty coffee from Cauca-Colombia. Predictive equations for acidity and body perception were obtained. The roasting profile points in charge, turning point, yellow, brown, first crack, and drop step were included. Mathematical models predict the acidity and body perceptions by integrating the roasting profile points characteristics of coffee. The Cauca coffee beans produced using the optimied conditions contribute to obtaining a roasting time/temperature of 468 s at 192 °C, respectively, with acidity (9/15) and body (5.5/15) in the (0–15) intensity consumer's perception scale. |
The impacts of agricultural subsidies of Common Agricultural Policy on agricultural emissions: The case of the European UnionOriginal PaperJeremiás Máté BaloghAgric. Econ. - Czech, 2023, 69(4):140-150 | DOI: 10.17221/51/2023-AGRICECON
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A pilot study of Continuous Cover Forestry in boreal forests: Decreasing the harvest intensity during selection cutting increases piece size, which in turn increases harvester productivityShort CommunicationJussi Manner, Tobias Karlsen, Back Tomas ErssonJ. For. Sci., 2023, 69(4):172-177 | DOI: 10.17221/22/2023-JFS
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Road network designing in a forested watershed using network connectivity indicesOriginal PaperMohsen Mostafa, Shaban Shataee Jouibary, Majid Lotfalian, Amir SadoddinJ. For. Sci., 2023, 69(6):229-243 | DOI: 10.17221/8/2023-JFS Designing and constructing a road network is one of the most critical steps of the development process in managing natural resources. The current research is going to investigate the application of network connectivity indices to the analysis of road networks in the forested watershed. First, the road network suitability map (RNSM) was created to emphasize the technical and physiographic criteria and integrated management scenarios using a weighted linear combination (WLC) and analytic network process (ANP). Subsequently, three road network alternatives (RNA) were assigned based on the priorities in the RNSM. In order to try to determine the appropriate alternative, the network connectivity of the designed alternatives looked into the forest and non-forest land uses, as well as the whole study area, using the values of alpha (α), beta (β), gamma (γ), eta (η), network density (ND) and detour indices (DI) in the context of the graph theory. Results show that the road density of the RNA2 variant (11.56 m·ha–1) is shorter than the other alternatives and the existing road network (ERN). In addition, dealing with the whole study area, we realized that the index values which are related to the number two reflect a better status than the other alternatives of alpha, beta, gamma, eta and detour index, in which they were identified to be 0.44, 1.34, 1.16, 0.45 and 0.83, respectively. RNA2 is chosen as the appropriate road network according to the network connectivity, technical and physiographical criteria, along with integrated management scenarios. Further control measures and field surveys are recommended to achieve more relevant results. |
Inheritance and allelism of brown midrib trait introgressed in agronomically promising backgrounds in pearl millet (Pennisetum glaucum (L.) R. Br.)Original PaperShashi Kumar Gupta*, Ponnaiah GovintharajCzech J. Genet. Plant Breed., 2023, 59(3):176-187 | DOI: 10.17221/93/2022-CJGPB The lignin content of forage crops significantly affects the livestock’s forage intake and its dry matter digestibility. The brown midrib (bmr) trait is known for its association with a reduced lignin content and increased digestibility. Pearl millet inbreds having the bmr trait were derived from two populations ICMV bmr and WRajPop bmr via continued selfing up to 6–8 generations. The results from the crosses revealed the presence of the same single recessive gene that controlled the bmr in both the populations. The stable expression of the bmr gene in the new genetic background indicated that there was no effect of modifier genes. Four inbreds were identified with the stable expression of bmr (three in ICMV 155 and one in the WRajPop background) with a high biomass potential, which can serve as a bmr source in future pearl millet forage breeding programmes. |
Impact of political and security stability on food security in developing countries: Case of Africa, Asia, Latin America and the CaribbeanCase StudyJangkung Handoyo Mulyo, Imade Yoga Prasada, Agus Dwi NugrohoAgric. Econ. - Czech, 2023, 69(9):375-384 | DOI: 10.17221/142/2023-AGRICECON
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Bioactive compounds and antioxidant activities of selected types of chilli peppersOriginal PaperTerezia Hudáková, Monika ©uleková, Jan Tauchen, Martina ©emeláková, Matú¹ Várady, Peter PopelkaCzech J. Food Sci., 2023, 41(3):204-211 | DOI: 10.17221/45/2023-CJFS
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In vitro assessment of the relationships between the digestion of different types of rice straw and bacterial community in the rumenOriginal PaperAjmal Wali, Naoki NishinoCzech J. Anim. Sci., 2023, 68(9):372-382 | DOI: 10.17221/193/2022-CJAS The aims of this study were to examine bacterial communities in relation to the rumen digestion of rice straw and to understand how concentrate supplements affect gut bacteria involving the digestion of a rice straw-based diet. The substrates were rice straw (RS) alone (experiment 1) and RS with 25% concentrates (barley and kidney beans) (experiment 2). The genomic DNA was collected to determine bacterial diversity by conducting denaturing gradient gel electrophoresis (DGGE). V6–V8 region group-specific (Clostridium and Bacteroides) primers were employed in the analyses. The DGGE band pattern was subjected to cluster analysis to demonstrate the similarity and difference between dietary treatments and solid-liquid fractions. Fibre digestibility, gas production, and volatile fatty acid (VFA) concentration were increased with incubation time. The differences between solid and liquid fractions were great in total bacteria, Clostridium, and Bacteroides communities. Clostridium and Bacteroides communities appeared unaffected by incubation time, whereas great differences existed between solid and liquid fractions throughout incubations (experiment 1). Barley and kidney bean supplements increased gas production and lowered rumen fluid pH, whereas changes in VFA concentration were significant only for kidney bean supplement. The Clostridium, and Bacteroides groups were affected by barley and kidney beans in the liquid fraction. However, the solid fraction was stable (experiment 2). These results indicate a rigid and stable community structure of Clostridium and Bacteroides groups involved in the digestion of rice straw-based diets in the rumen. Distinctive differences between solid and liquid fractions were described; hence, separate analyses of two fractions may greatly help understand the relationship between fermentation patterns and microbial communities in the rumen. |
Organic versus conventional ‘Willamette’ raspberry: yield, bioactive compounds and antioxidant propertiesOriginal PaperSenad Murtiæ, Milena Ðuriæ, Jasmin Fazliæ, Fikreta Behmen, Sanel Haseljiæ, Amina ©erbo, Haris BerbiæHort. Sci. (Prague), 2023, 50(4):275-282 | DOI: 10.17221/164/2022-HORTSCI This paper presents the results of a two-year trial on the yield, total phenolic and flavonoid contents and total antioxidant capacity of the ‘Willamette’ red raspberry under organic and conventional farming. A trial was conducted in a commercial plantation of ‘Willamette’ raspberries located in the southwestern part of Serbia. The total phenolics and flavonoids in the raspberry fruits were determined by the Folin-Ciocalteu reagent and aluminium chloride assay, respectively. The ferric reducing antioxidant power assay was used to evaluate the total antioxidant capacity of the raspberry fruits. The results of this study showed that the raspberry yields were significantly affected by the different farming systems. The raspberry yield in conventional farming was higher than that of organic farming. Contrastingly, the raspberries from the organic farming contained higher levels of the total phenolics and flavonoids and also had a higher total antioxidant activity compared to those from the conventional farming in both 2021 and 2022. This study also showed that the total phenolic and flavonoid contents of the ‘Willamette’ red raspberry have a significant and positive correlation with their total antioxidant capacity, indicating that the phenolic compounds play an important role in the antioxidant activity of the raspberry. |
Nutritional composition analysis and quality evaluation of cattle in different regions of Guizhou Province (China)Original PaperHaoXiang Xu, WenJu Luo, Lu Lei, JiuLing Long, Bo Yu, YuanFeng Zhao, Rong Ai, Jiang Lingling, Jiang Ran, JingRui Zhou (email: 296655827@qq.coCzech J. Food Sci., 2023, 41(6):455-472 | DOI: 10.17221/133/2023-CJFS This study aimed to investigate the variations in nutritional composition among different breeds of cattle in Guizhou. Specifically, this study selected Guanling, Weining, Sinan, Wuchuan, and Simmental cattle as experimental subjects. Assessing the nutritional quality of the longissimus dorsi muscle involves evaluating various parameters, including ultimate pH (pHu), meat colour, water-holding capacity, shear force, protein and fat content, levels of organic acids and amino acid composition. The study's findings indicated notable variations among the muscles of different cattle breeds tested. Guanling, Wuchuan, and Simmental cattle exhibited the highest water-holding capacity, while Wuchuan cattle displayed the highest shear forces. Guanling cattle and Simmental cattle had the highest levels of protein and fat. Weining cattle and Simmental cattle demonstrated the highest concentrations of lactic acid and oxalic acid. Guanling cattle exhibited the highest total amino acid and essential amino acid content. Moreover, Guanling cattle and Weining cattle showed the highest lightness (L*) and yellowness (b*) values, indicating lighter meat colour, while Weining cattle had the highest redness (a*) value, indicating redder meat colour. No significant differences among the five cattle breeds were observed in pHu and propionic acid content. These results provide a theoretical basis and serve as a data reference for assessing the suitability of different beef varieties for various processing purposes. |
A comparative study on the effect of quantitative feed restriction in males and females of broiler chickens, rabbits and nutrias. I. Performance and carcass compositionOriginal PaperEva Tùmová, Darina Chodová, Zdenìk Volek, Tarek A. Ebeid, Mohamed Ketta, Vìra SkøivanováCzech J. Anim. Sci., 2022, 67(2):47-54 | DOI: 10.17221/185/2021-CJAS The aim of the study was to compare the effects of feed restriction on the growth performance and carcass composition of chicken, rabbit and nutria males and females. Feed restriction was applied at a rate of 70% ad libitum from 14 to 21 days of age in chickens, 70% ad libitum from 42 to 49 days of age in rabbits, and 70% ad libitum from 12 to 15 weeks of age in nutrias. Animals were fed ad libitum prior to and following restriction. Carcass composition was evaluated at common slaughter ages, i.e., 31 days in chickens, 70 days in rabbits, and eight months in nutrias. The results showed stronger effects of feed restriction, sex, and their interaction in broiler chickens than in rabbits and nutrias. In chickens, feed restriction increased the sex differences in final body weight, which were associated with interaction of feed restriction and sex (P = 0.009). Feed restriction as a fixed factor significantly affected growth and feed conversion in chickens and it was with no effect in rabbits and nutrias. The effect of feed restriction on carcass composition was negligible in all selected species. With respect to sex, significant differences were observed in chickens in final body weight, daily weight gain, dressing out percentage and breast percentage, in rabbits in loin percentage, and in nutrias in growth and perirenal fat percentage. Results of the study indicated that interactions of feed restriction and sex in growth might be associated with a short realimentation period. |
Silvicultural options to promote natural regeneration of Scots pine (Pinus sylvestris L.) in Western Ukrainian forestsOriginal PaperVasyl Lavnyy, Peter Spathelf, Rostyslav Kravchuk, Ruslan Vytseha, Volodymyr YakhnytskyyJ. For. Sci., 2022, 68(8):298-310 | DOI: 10.17221/73/2022-JFS Scots pine (Pinus sylvestris L.) forests belong to the most relevant forest types in the Western Ukrainian Roztochia area. The promotion of close-to-nature forest management in Ukraine in the framework of the forest strategy 2 035 supports natural regeneration and the application of diverse felling methods beyond clearcutting. In the present study, natural regeneration was analysed in mixed Scots pine stands on poor and relatively rich soils, after small clearcuts, shelterwood cutting and gap fellings (with or without soil preparation), with respect to tree species composition, species abundance and height growth. It could be shown that Scots pine is the most abundant species in all the felling systems, with on average more than 100 000 plants per ha on poor soils. Other admixed tree species only occur with small shares. Natural regeneration, especially of Scots pine, was less abundant on rich soils and in shelterwood, compared to a small clearcut. After the young plants have established, their abundance declined in the second and third year due to competing herbaceous plants and thick litter. |
The occurrence of Fusarium spp. in green Asparagus officinalis L. spearsOriginal PaperRoman Andrzejak, Beata JanowskaHort. Sci. (Prague), 2022, 49(4):234-247 | DOI: 10.17221/100/2021-HORTSCI Due to changes in the climate and the existence of a wide range of Asparagus officinalis L. cultivars, it is necessary to identify their suitability for cultivation in Poland and investigate their susceptibility to infection by the most common pathogens. The identification of the species composition of fungi of the Fusarium genus found in green spears of edible A. officinalis cultivars and the factors contributing to their occurrence will enable the effective protection of these crops. The study was conducted on seven A. officinalis cultivars bred in different countries, which were dioecious cultivars with male and female specimens: 'Ariane' (Germany), 'Cipres' (France), 'Eposs' (Germany), as well as cultivars with male specimens only: 'Andreas' (France), 'Gynlim', 'Grolim' (Netherlands), and 'Hannibal' (Germany). The analysis of the composition of the fungi isolated from the green A. officinalis spears showed that most of the isolates belonged to the Fusarium genus (F. culmorum Wm.G. Sm., F. equiseti (Corda) Sacc., F. oxysporum Schltdl., F. proliferatum (Matsush.) Nirenberg ex Gerlach & Nirenberg, F. solani (Mart.) Sacc., and F. fujikuroi Nirenberg). Other fungal species (Alternaria, Botrytis, Cladosporium, Penicillium, and Stemphylium) were rarely isolated. The majority of the Fusarium genus isolates came from the spears of the 'Ariane' and 'Eposs' cultivars showing disease symptoms and from the spears of the 'Grolim' cultivar without showing disease symptoms. The fungi of the Fusarium genus colonised both the spears with and without disease symptoms, but there were always more isolates on the ones with disease symptoms. Fungi of the Fusarium genus occurred more often in the epidermis than in the parenchyma. F. oxysporum was the dominant fungus in the A. officinalis spears under analysis. The number of fungi isolates of the Fusarium genus collected from the green A. officinalis spears tended to increase at the consecutive harvest dates, which means that the spears harvested at the latest date (late June) were the most heavily colonised by fungi. All of the fungi isolates of the Fusarium genus collected from the spears exhibited pathogenicity against A. officinalis plants. |
Echocardiographic measurements and cardiac anatomy in healthy Western hognose snakes (Heterodon nasicus)Original PaperM Oliveri, C Carnabuci, M Vignoli, S Di Feliciantonio, M Di Feliciantonio, L Della Salda, Z Knotek, M di Tommaso, A LucianiVet Med - Czech, 2023, 68(2):75-82 | DOI: 10.17221/63/2022-VETMED This study aims to describe the most important cardiac structures in the Heterodon nasicus through echocardiography and anatomical dissection. Echocardiographic and echo-Doppler measurements were performed on twenty healthy adult Heterodon nasicus (10.10). The values of the ventricular length, aortic diameter, pulmonary trunk diameter, the mean thickness of the interventricular septum, and thicknesses of the wall of the cavum pulmonale (Cav. P) and cavum arteriosum (Cav. A), were measured. The aortic flow and pulmonary trunk flow were recorded. Two dead specimens (1.1) were dissected. The male’s pulmonary trunk diameter was bigger compared to the female’s in both the long and short axis. The reproductive ecology of Heterodon nasicus has yet to be fully elucidated upon, however, male territorialism and dispersal from the hibernacula, and multiple male courtships toward a single female were described, hence, the more active reproductive activity of the male and the consequent sexual selection toward a higher aerobic performance can be hypothesised. A moderate interventricular right to left shunt was noticed in the Cav. V of all the specimens, which is considered normal and should not confuse the clinician. Congenital defects, cardiomyopathies, valvulopathies, and pericardial diseases are known to occur in ophidians and other reptiles. Reliable data and profound knowledge of the anatomy and physiology of the ophidian heart are fundamental for the in vivo diagnosis of cardiac diseases in snakes. |
Serum biochemical reference interval determination in wild Siberian weasel (Mustela sibirica)Original PaperM Ha, YD Suh, S Ahmed, DN Lee, JH Han, YK Kim, SC YeonVet Med - Czech, 2023, 68(3):122-128 | DOI: 10.17221/102/2022-VETMED Determining reference intervals (RI) is a valuable asset for assessing the health of wildlife species. This is the first study to establish serum biochemical RIs in Siberian weasels. Forty-two healthy free-ranging Siberian weasels were captured live and brought to Seoul Wildlife Center between June 2021 and August 2022. Blood samples from 42 healthy Siberian weasels of both sexes were used to calculate RIs. An automated analyser was used to perform serum biochemistry profiles. The American Society for Veterinary Clinical Pathology recommendations were used to calculate a nonparametric RI with 90% confidence intervals. The RIs of albumin, total protein, globulin, calcium, glucose, blood urea nitrogen, phosphorus, amylase, cholesterol, alanine aminotransferase, total bilirubin, alkaline phosphatase, creatinine, and creatine kinase were determined. The RIs established in this study will serve as a good starting point for analysing serum biochemical data in Siberian weasels. |
Contrasting tillage systems and vertical arable layer stratification impacts on soil aggregates and root biomass in LithuaniaOriginal PaperInga Andru¹kaité, Vaclovas Bogu¾asRes. Agr. Eng., 2023, 69(2):76-84 | DOI: 10.17221/29/2022-RAE Tillage intensity can affect soil quality through soil aggregates, which are strongly associated with organic carbon. In this study, we evaluated the effect of different intensity tillage (conventional ploughing (CP), shallow ploughing (SP), deep cultivation (DC), shallow cultivation (SC), no-tillage (NT)) on soil organic carbon (SOC) and soil aggregates at the 0-5, 5-10, 10-20 and 20-30 cm layers and root biomass at the 0-10, 10-20 and 20-30 cm layers. The field experiment on spring barley (Hordeum vulgare L.) consisted of a split-plot arrangement with four replications. Dry soil aggregates were evaluated using the mean weight diameter (MWD) index. Wet aggregates were assessed using a water-stable aggregate (WSA) index. We identified that tillage intensity significantly influenced the MWD index at four soil levels. Shallow tillage showed greater results at 0-5 and 5-10 cm depths. However, deep tillage increased the MWD at 10-20 and 20-30 cm depth. NT was dominated by evaluating the WSA at every level of the soil. SOC was correlated with WSA. The highest SOC was found under NT. The different tillage intensities did not significantly affect root biomass. |
Immunohistochemical analysis of extracellular signal-regulated kinase expression in mature and immature bulls’ testes and epididymidesOriginal PaperS Jang, C Yun, B Kim, S Kang, J Lee, S Jeong, Y Cho, K Sung-Ho, L Chang-Min, C Moon, K Joong-SunVet Med - Czech, 2023, 68(6):231-237 | DOI: 10.17221/34/2023-VETMED Extracellular signal-regulated kinase (ERK) has been implicated in mammalian testicular and epididymal development. This study aimed to investigate ERK expression in the immature and mature testes and epididymides of bulls. We evaluated ERK expression using immunoblot analysis and immunohistochemistry. Immunoblot analysis revealed that immature bull testes and epididymides had higher phosphorylated ERK (pERK) expression than mature bull testes and epididymides. pERK immunoreactivity was higher in immature epididymides than in immature testes. pERK was localised mostly in spermatogonia, undifferentiated sustentacular (Sertoli) cells, and interstitial (Leydig) cells in immature testes, as well as in some spermatocytes and spermatids in mature testes. In immature epididymides, the body and tail had higher pERK expression than the head, whereas pERK was broadly distributed throughout the stereocilia, basal cells, and connective tissues. pERK distribution in the head of mature epididymides was similar to that in immature epididymides, whereas few connective tissue cells were expressed in the body and tail of mature epididymides. Collectively, these results suggest that ERK is expressed in the testis and epididymis of immature and mature bulls with varying intensities, and the role of ERK in male reproductive organs may include the specific function of its development. |
Effect of microbiologically enriched fertilizers on soil microorganisms in the rhizosphere of apple treesOriginal PaperLidia Sas Paszt, Urszula Smoliñska, Pawe³ Trzciñski, Augustyn Mika, S³awomir G³uszek, Edyta Derkowska, Anna Lisek, Krzysztof Górnik, Beata Sumorok, Magdalena Szczech, Beata Kowalska, Waldemar TrederHort. Sci. (Prague), 2023, 50(3):189-198 | DOI: 10.17221/97/2021-HORTSCI
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The effect of different cooking methods on the antioxidant activity of wild Swiss chard (Beta vulgaris L. var. cicla)Original PaperYagmur Demirel Ozbek*, Ozlem SaralCzech J. Food Sci., 2023, 41(5):375-381 | DOI: 10.17221/114/2023-CJFS
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Canine oral melanoma with suspected pulmonary metastasis: Combination of immunotherapy and tyrosine kinase inhibitor treatmentCase ReportKR Kim, DH Kim, MJ Jung, DM Sihn, SW Jeong, JH KimVet Med - Czech, 2023, 68(12):477-482 | DOI: 10.17221/90/2023-VETMED This case report follows a 10-year-old castrated male Miniature Schnauzer dog presented with a history of incomplete surgical resection of an oral malignant melanoma (amelanotic type) on the right mandible. Melanoma vaccine therapy was administered due to incomplete surgical resection, however, new masses were detected on the contralateral mandible and suspected pulmonary metastasis occurred at 2 weeks and 7 months, respectively, following the first melanoma vaccination. At the time of detecting the pulmonary metastasis, targeted chemotherapy was initiated with the owner’s consent using imatinib (10 mg/kg/day, p.o.), a tyrosine kinase inhibitor (TKI). The patient did not show any significant adverse events related to both anticancer treatments. Three months following the first dose of imatinib, the absence of the suspected pulmonary metastatic nodules on radiography indicated complete remission. In conclusion, this report describes the achievement of clinical remission of suspected pulmonary metastatic oral malignant melanoma and an extension of survival time in a dog given a combination treatment of immunotherapy and tyrosine kinase inhibitor. |
