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Results 1801 to 1830 of 5824:

Gastroprotective effect of the hydroethanolic extract of geopropolis produced by Melipona subnitida (Meliponinae, Apidae) in Wistar ratsOriginal Paper

JS Batista, TS Teofilo, HN Araujo Junior, NS Felix, KAR Paiva, TA Neves, LS Reboucas, GVD Medeiros, KMFM Costa (emai

Vet Med - Czech, 2025, 70(4):134-142 | DOI: 10.17221/98/2024-VETMED


The jandaíra bee (Melipona subnitida) is a species native to northeastern Brazil that produces geopropolis, a mixture of clay and propolis, used in folk medicine. Geopropolis has traditionally been used in folk medicine because of its potential therapeutic properties, including antimicrobial, anti-inflammatory, and wound-healing effects. Recent studies have highlighted the rich composition of bioactive compounds such as flavonoids and phenolic acids, contributing to their pharmacological potential. Despite these findings, the gastroprotective properties of geopropolis and the underlying mechanisms remain underexplored and warrant further investigation. Therefore, we aimed to evaluate the gastroprotective effects of a hydroethanolic extract of geopropolis (HEG) produced by M. subnitida in Wistar rats, focusing on its antioxidant activity and the role of its bioactive compounds in preventing gastric mucosal damage. The gastroprotective potential was evaluated in Wistar rats pre-treated with HEG (250, 500, and 1 000 mg/kg, orally) for seven days and subjected to acute gastric lesions with ethanol (0.2 ml/animal, orally). One group of rats that received only distilled water served as the negative control, whereas the other group that received only ethanol served as the positive control. The stomachs were evaluated to determine the following parameters: evidence of macroscopic and histological changes, volume of mucus-containing mucin, stomach pH, and index of ulcerative lesions. Kolmogorov-Smirnov and Levene tests were performed, followed by the Tukey test, with values considered significant at P < 0.05. HEG reduced the severity of the ulcerative lesions at all doses tested. Additionally, there was no significant difference in the pH values of gastric secretions, mucus volume, and mucin content in the stomachs of animals pretreated with HEG compared to the negative control group. These results indicate that HEG has gastroprotective activity, which may be related to the presence of phenolic compounds and its high antioxidant activity.

Camera systems and their user recognition reliability when entering an agri-food complexOriginal Paper

Jaroslav Mrázek, Jakub Vo¹áhlík, Eva Olmrová, Martin Pexa, Zdenìk Ale¹, Jakub Èedík

Res. Agr. Eng., 2025, 71(2):105-112 | DOI: 10.17221/35/2025-RAE

This study evaluates the efficiency of various facial recognition camera systems used to control access in agri-food production environments, focusing on their ability to identify individuals based on biometric facial traits. It is also important to prevent the movement of unwanted persons into the production premises in the agri-food complex. The main goal was to assess how these factors influence the recognition performance and to determine the most reliable system for preventing unauthorised entry. The results show notable performance disparities between the devices tested. It can be concluded in this research that there are statistically significant differences between the maternal, professional and semi-professional systems. The device that is most suited is the HIKVISION iDS-2CD8426G0/F-I, achieving the best average performance score. This is based on usual recognition times. These tests indicate that the HIKVISION DS-2DE7232IW-AE(S5), which obtained an average rating of 2.216789, is the second-best acceptable device. With a score of 2.842113, HIKVISION DS-2CD2H45FWD-IZS (2.8–12 mm) (B) received, without a doubt, the lowest ranking. Given the outcomes, systems with superior recognition capabilities like the iDS-2CD8426G0/F-I are best to use for critical access control applications and to also minimise the use of facial coverings in sensitive areas to ensure reliable identification and higher levels of security of agri-food complexes.

Genomic diversity characteristics of sheep populations in the Czech Republic, Slovakia, Serbia and MontenegroOriginal Paper

Gábor Mészáros, Birgit Fürst-Waltl, Johann Sölkner, Hana Vostrá-Vydrová, Jan Calta, Milena Ðokiæ, Bo¾idarka Markoviæ, Dragan Stanojeviæ, Vladan Bogdanovic

Czech J. Anim. Sci., 2025, 70(6):234-241 | DOI: 10.17221/69/2025-CJAS


Monitoring the genetic diversity in livestock is a critical component for sustainable management of small and endangered breeds. In this paper we follow up the two most often used metrics of genetic diversity, the average inbreeding coefficients (F) and the effective population (Ne) size in 16 sheep breeds from four countries. The analysis was based on single nucleotide polymorphism (SNP) markers, with about 35 to 49 thousand SNPs and 19 to 98 individuals after quality control. The runs of homozygosity (ROH) method with the cgaTOH software was used to estimate FROH, for three different time points in the past (3, 6 and 12 generations before present). Three methods were implemented to estimate Ne, using the NeEstimator v2, GONE and CurrentNe software for different time spans in the past. The average FROH ranged between 0.001 and 0.035 for 3 generations, 0.003 and 0.059 for 6 generations, 0.005 and 0.074 for 12 generations in the past. The wide range of inbreeding coefficients might be a consequence of different population sizes and breed management strategies in the respective countries. The results for Ne ranged from 7 to 352 for NeEstimator, 25 to 303 for GONE, and 15 to 542 for CurrentNe. Overall, the software showed comparable results for 10 out of 16 breeds, and significantly different results for at least one software for at least one of the methods for 6 out of 16 breeds. These differences show a degree of uncertainty in Ne estimations for certain breeds. Overall, we suggest the continued monitoring of sheep breeds, ideally by routine genotyping in all populations. This monitoring is especially important for small breeds with a greater decline in genetic diversity.

Corn poppy (Papaver rhoeas L.) resistance to ALS inhibiting and 2,4-D herbicides in Moroccan and Tunisian rainfed wheat fieldsOriginal Paper

Zakia El-Mastouri, Pavlína Ko¹narová, Kateøina Hamouzová, Ezzedine Alimi, Josef Soukup

Plant Soil Environ., 2025, 71(7):480-486 | DOI: 10.17221/45/2025-PSE

Corn poppy (Papaver rhoeas L.) is one of the most problematic weed species, mainly in rainfed Moroccan and Tunisian cereal crops. The overuse of acetolactate synthase (ALS) inhibiting and/or auxinic herbicides led to the spread of corn poppies resistant to both chemical families in this region. In order to identify and understand the selection drivers of resistance, appropriate characterisation of the resistance profile is necessary. Two experiments were carried out: biological sensitivity tests with ALS inhibiting herbicides (tribenuron-methyl and florasulam) and auxinic herbicides (2,4-d) were carried out with populations sampled in the field where the herbicide failure was observed. Bioassay tests confirmed resistance in all studied populations with an average frequency of 75.13, 30.81, 33.17 and 11.52% with tribenuron, florasulam, 2,4-d and florasulam + 2,4-d, respectively. Corn poppy sampled from both countries exhibited similar frequencies within populations for each tested herbicide. The molecular analysis was conducted with next-generation sequencing (Illumina), allowing massive, precise and rapid sequencing regions of the ALS gene carrying resistance codons. Using this technology, ALS mutant alleles were found in all populations at frequencies ranging from 1.4% to 63.3%, with an average of 16.7%. This study highlights the need to elucidate resistance mechanisms to understand herbicide responses and develop effective strategies for managing resistant corn poppy in rainfed cereals as an essential step to maintain the effectiveness of these molecules as long as possible.

Unveiling green perception effect: How live streaming scenes and green information influence purchase intention of prepared dishesOriginal Paper

Shuo Hao, Pei Li, Nannan Zhang, Yang Du, Rui Liang, Ziyang Liu

Agric. Econ. - Czech, 2025, 71(10):537-549 | DOI: 10.17221/247/2024-AGRICECON

To promote the sustainable consumption of prepared dishes, this study examines how green attribute information (GAI) and live streaming scenes experience (LSSE) influence consumers' green perceptions (GP) – including perceived green value (PGV) and perceived green trust (PGT) – and subsequently affect their purchase intention (PI). A green perception model was developed and tested using a mixed-method approach. Word cloud analysis was conducted on consumer comments collected from e-commerce platforms to extract key descriptors and concerns, which informed the design of a structured questionnaire. A total of 291 valid responses were analysed using partial least squares structural equation modelling (PLS-SEM). Results show that: (iGAI does not directly impact PI, indicating that GP is a necessary mediator; (iiGAI significantly influences PGV, but not PGT; (iiiGP fully mediates the GAIPI relationship, although PGV has a negligible direct effect on PGT; (ivLSSE significantly enhances both GP and PI; (vGP partially mediates the LSSEPI relationship. These findings highlight the dual role of LSSE in facilitating information adoption and emotional engagement, and suggest that enhancing LSSE design and enriching GAI are effective strategies to increase consumers' green perception and purchase intention towards prepared dishes.

Effects of controlled irrigation on global warming potential based on CH4, N2O and CO2 fluxes in plateau paddy fieldOriginal Paper

Shufang Wang, Hongchun Bi, Liping Wang, Jing Wang, Ying Wang, Lihong Chen

Plant Soil Environ., 2024, 70(9):535-542 | DOI: 10.17221/453/2023-PSE

A suitable irrigation pattern is of great significance for reducing greenhouse gas emissions. In this study, field experiments and a denitrification-decomposition (DNDC) model were used to study the global warming potential based on CH4, N2O and CO2 fluxes under flooding irrigation and controlled irrigation in paddy fields in the Erhai Lake basin. The results showed that the average value of CH4 flux under controlled irrigation was lower than that under flooding irrigation, with a reduction range of 43.21% to 48.88%, however, the average value of the N2O and CO2 fluxes from paddy field under controlled irrigation were higher than those under flooding irrigation. Controlled irrigation patterns can significantly reduce the global warming potential in paddy fields based on CH4, N2O and CO2 fluxes. Controlled irrigation can effectively reduce the global warming potential per unit yield. For water management in the Erhai Lake basin, it is recommended the controlled irrigation treatment of soil moisture with an upper limit of 100% and a lower limit of 75–85% with irrigation, and a maximum surface water depth of 150–200 mm lasting for five days after precipitation from the jointing-booting stage to the milk stage.

A study on the influence of the loading rate and orientation on some mechanical properties of cassava tubers of different agesOriginal Paper

Olawale Ogunnigbo, Dare Adetan, Tunde Morakinyo, Olusola Olusunmade, Bolaji Ojerinde

Res. Agr. Eng., 2021, 67(1):34-44 | DOI: 10.17221/57/2020-RAE

The study determined the effects of the speed of loading and the loading orientation on some selected mechanical properties of the TME 419 cassava tuber variety at different ages of the tuber which are essential in the design and construction of the processing and handling equipment of a cassava peeler. The properties considered include the bioyield and rupture points, compressive and rupture strengths, toughness and firmness, and moduli of stiffness and toughness, which were carried out in the transverse and longitudinal loading direction using an Instron Universal Testing Machine (UTM). As the loading rate increased from 5.00 to10.00 mm.min-1 and the age of the tuber varies from 1.00 to 2.00 years, the bioyield and rupture points, compressive and rupture strengths, toughness, firmness, moduli of stiffness and toughness in the transverse and longitudinal direction varies from 1 619.61 to 3 636.19 N and 136.08 to 384.52 N, 0.48066 to 1.07913 N.mm-2 and 0.26604 to 0.75173 N.mm-2, 766 to 1055 N.mm-1 and 1 262 to 2 965 N.mm-1, 303.98 to 553.68 mm.min-1 and 28.08 to 53.71 mm.min-1 2.30 to 4.19 N.mm-2 and 5.376 to 8.94N.mm-2 respectively. Generally, the values of the properties examined are higher in the longitudinal loading orientation than in the transverse and for a year and half old tuber which will be useful in designing an efficient cassava peeling system.

Pedogenesis problems on reclaimed coal mining sitesReview

Marko Spasiæ, Lubo¹ Borùvka, Oldøich Vacek, Ondøej Drábek, Václav Tejnecký

Soil & Water Res., 2021, 16(3):137-150 | DOI: 10.17221/163/2020-SWR

Open-cast coal mining presents a big global issue because of the large areas the mines occupy, which get entirely changed. Their ecosystems lose most of their functions, and a huge amount of fertile soil gets utterly destroyed. Reclamation is a process of returning the functions of the soil after the excavation is finished, most commonly achieved by establishing vegetation, which can sometimes be very difficult. This happens due to the physical, chemical and biological changes that occur on these sites, which are described in this paper. Also, some directions for mitigating these problems are given. Once the vegetation is successfully introduced, natural cycles that were compromised by the mining are established once again, and the process of soil formation begins. Some trends and problems related to pedogenesis research on reclaimed mine sites are presented and discussed, along with presumptions of how the process of soil formation evolves on afforested clayey Technosols of central Europe. The potential future research which would confirm these presumptions is discussed, with the emphasis on the need of research performed on older reclamation sites, as well as sites with similar ecological conditions and different tree species cover.

The insertion of an ancestral gene in Nicotiana tabacum plants reduces free radicals during saline irrigationOriginal Paper

Claudia Marissa Calderón Torres, Victoria Abril Mancilla Galván, Miguel Murguía Romero

Czech J. Genet. Plant Breed., 2025, 61(1):43-49 | DOI: 10.17221/107/2024-CJGPB

Transgenic organisms modified with ancestral genes for nitrogen metabolism are rare. Previously, it was reported that genetically modified Nicotiana tabacum with the ARO4 gene of aromatic amino acid synthesis from the yeast Debaryomyces hansenii increases its growth during moderate salt stress. In this investigation, it was explored if the changes in the expression of the gene DhARO4 in Nicotiana tabacum, during saline irrigation, are related to the chlorophyll content and the total reactive oxygen species production. Seedlings of transgenic and wild type Nicotiana tabacum germinated in standard conditions were divided into two irrigation groups, with 100 mM of NaCl and with tap water; and, after 50 days, in the non-senescent adult leaves of the plants, the total chlorophyll a and b and the total chlorophyll content were determined by spectrophotometry and the reactive oxygen species production (•OH, 1O2, H2O2) was quantified by a 2',7'-dichlorodihydrofluorescein assay. The expression of the DhARO4 gene was verified with a salt shock of 100 mM of NaCl for 24 hours in the transgenic and wild type plants in the tap water irrigation group. The DhARO4 gene transcript increased (P < 0.05) in the transgenic plant; meanwhile, the average concentration of chlorophyll a increased (P < 0.05), and the average production of reactive oxygen species decreased (P < 0.05).

Whole-genome resequencing data reveal the genetic diversity of local chickens in southern Zhejiang and surrounding areas in ChinaOriginal Paper

Yawen Zhang, Bo Zhang, Ziwei Li, Fengxiang Hou, Yan Zhao, Junjie Jin, Bin Song, Wenjie Gu

Czech J. Anim. Sci., 2025, 70(3):113-120 | DOI: 10.17221/186/2024-CJAS

China’s local chicken breeds, especially those in the Zhejiang Province, are rich in genetic diversity owing to environmental heterogeneity and complex ecosystems. Distinctive local breeds have emerged through long-term natural selection and domestication. We investigated the genetic diversity and population structure of local chickens in southern Zhejiang and surrounding areas using whole-genome resequencing of 129 chickens from seven populations. A total of 1.8 terabytes of raw data was obtained, and 4 802 728 single nucleotide polymorphisms were detected. The Xianju chicken population exhibited the highest genetic diversity, while Yandang Partridge chickens were genetically distant from other chicken breeds. This study provides valuable information for conserving poultry genetic diversity and informs about breeding programmes of local Chinese chicken breeds.

Biocontamination in the dairy industry: The effect of raw milk conditioning film on the adhesion of Escherichia coliOriginal Paper

Zakariyae El hafa, Ikhlas Hani Chennoufi, Hafida Zahir, Mostafa El louali, Hassan Latrache

Czech J. Food Sci., 2025, 43(2):112-117 | DOI: 10.17221/91/2024-CJFS

Conditioning films on surfaces employed in the dairy industry serve as the precursors to the formation of pathogenic biofilms that impact product quality and consumer safety. Conditioning films have been studied from several aspects. However, there has been no study that evaluated the effect of raw milk conditioning film on the adhesion of Escherichia coli. This study investigated the adhesion of E. coli on glass and stainless-steel surfaces conditioned with raw milk and explored the surface properties potentially influencing this adhesion using the contact angle method. The results showed that after treating surfaces with raw milk, the adhesion of the bacteria on stainless steel and glass was significantly altered. Adhesion increased significantly on stainless steel (from 0.55 log10 to 2.8 log10) but it decreased on glass (from 1.56 log10 to 0.8 log10). Significant alterations were observed in the physicochemical properties of the surfaces. Glass was initially relatively hydrophilic (46.33°), while stainless steel was relatively hydrophobic (82.5°). After treatment, the glass became relatively more hydrophobic (74.6°), and stainless steel became relatively more hydrophilic (69.4°). The electron donor/acceptor components of glass decreased after the treatment, while these components increased for stainless steel. The significant changes in adhesion were hypothesized to be due to the modification of surface properties by the raw milk.

Assessing the impact of China's National Big Data Comprehensive Pilot Zone policy on agricultural carbon emissionsOriginal Paper

Yuqian Zhang, Yixuan Wang, Chenchen Su, Jiahong Guo, Chen Xu

Agric. Econ. - Czech, 2025, 71(5):242-253 | DOI: 10.17221/205/2024-AGRICECON


The global focus on the relationship between digitisation and agricultural carbon emissions remains high. However, research on the systemic ramifications of comprehensive digital policy implementation remains limited. Against the backdrop of China's pursuit of carbon neutrality and carbon emission peaking targets, we employed the difference-in-differences method to investigate the impact of applying a digital policy on agricultural carbon emissions. Our findings indicated that the implementation of the National Big Data Comprehensive Pilot Zone policy could effectively mitigate agricultural carbon emissions, resulting in a sustained positive influence. The intermediary mechanism test results validated the beneficial effects of financial expenditures on science and technology, as well as the number of information practitioners. The regional heterogeneity analysis results revealed that the policy effect was obvious in the major grain-producing areas but not in the major grain-selling areas or production–marketing balance areas. Additionally, differences in policy effectiveness were observed across different crop types. This study not only offers valuable insights for agricultural carbon reduction in China but also provides robust case data and guidance for other developing countries worldwide in the formulation and execution of digital policies aimed at promoting agricultural carbon emission reduction.

Climate change and topographic variations affect infestation by Xyleutes ceramica (Walker, 1865) (Lepidoptera: Cossidae) in teak plantations in ThailandOriginal Paper

Thanapol Choochuen, Jiøí Foit, Ponthep Meunpong, Warong Suksavate

J. For. Sci., 2025, 71(6):297-311 | DOI: 10.17221/15/2025-JFS

The teak bee-hole borer [Xyleutes ceramica (Walker, 1865)] is considered one of the most serious pests of teak (Tectona grandis) in Thailand. The present study investigates climatic and topographic variables affecting the infestation of teak trees by X. ceramica in 10 plantations and predicts the risk of infestation by the species under current and future climatic conditions in Thailand. At each plantation, 48 plots evenly distributed among twelve teak stands were sampled. The infested teak trees in the plots were assessed, and the coordinates of the tree positions were recorded. The maximum entropy (MaxEnt) model was used to assess the effects of environmental factors and predict the occurrence probability of the species using current and projected (2050) climate data based on the Shared Socioeconomic Pathways SSP1-2.6 and SSP5-8.5 scenarios from multiple global climate models. According to our results, high accuracy values [AUC (area under the curve) = 0.852, TSS (true skill statistics) = 0.775] of the model prediction were obtained, and the infestation was found to be driven much more by climate than by topographic characteristics. Above all, X. ceramica was found to prefer moderate temperatures in a highly distinct seasonal climate. Additionally, relatively low amounts of premonsoon rainfall are also found to be favoured by the species. The predicted risk map revealed that the northern region is the core area of X. ceramica infestation in Thailand under current and future climatic conditions, but the severity of infestation is predicted to gradually decrease under the predicted future climatic conditions. Recommendations for management to minimise tree damage caused by X. ceramica are also presented in this study.

Insights into the morphometric and molecular characterisation of ber fruit fly (Carpomyia vesuviana Costa) infesting jujube ber, Ziziphus mauritiana (Lamk.)Original Paper

Palanivelu Kavin, Balakrishnan Usharani, Pagadala Damodaram Kamala Jayanthi, Krishnasamy Suresh, Gandhi Gracy, Sandeep Singh, Nanchil Richard Kennady, Madhavan Lysal Mini, Chelvi Ramessh

Plant Protect. Sci., 2025, 61(4):350-365 | DOI: 10.17221/176/2024-PPS


Carpomyia vesuviana Costa, a fruit fly species, is a major pest affecting the jujube (Ber). This monophagous insect pest causes significant economic losses in regions where the jujube is cultivated. Hence, the present study was conducted to provide a detailed morphometric and molecular analysis of C. vesuviana across various Indian regions, specifically Tamil Nadu, Punjab, and Rajasthan. Morphometric measurements were conducted for various developmental stages, from the egg to adult. The overall mean length and width of the egg were 0.61 mm and 0.18 mm, respectively, and the fully grown maggot measured 6.19 mm (length) and 1.91 mm (width). The length and width of the prepupa and pupa were 7.67 mm and 1.64 mm, and 4.00 mm and 1.72 mm, respectively. The overall mean length of the female whole body and wing expanse measured 4.74 mm and 3.92 mm, respectively. The overall mean male whole body length and wing expanse were 4.19 mm and 3.56 mm, respectively. The results of the Principal Component Analysis (PCA) revealed that the maggot's length at different stages, pupa length, and egg width were the main contributors to the variability, particularly in the samples from Rajasthan. Additionally, the adult female fly's morphometric traits, such as the wing and thorax measurements, showed regional variations, with the PCA highlighting Punjab's alignment with larger head and abdomen traits. The molecular analysis based on PCR and sequencing of the COXI–COXII region confirmed the species identity. The nucleotide sequence of C. vesuviana from Tamil Nadu and Punjab was deposited in GenBank as PQ198003.1 and PQ198005.1 which had nearly 99% genetic similarity with two sequences NC_071721.1 (Beijing, China) and MT121231.1 (Beijing, China) submitted in the NCBI database. A phylogenetic analysis further demonstrated that the Tamil Nadu and Punjab populations were closely related to an Iranian sample, while samples from other countries, such as the C. schineri.

Himalayan fir growth in central Bhutan reflects variability in temperature and precipitationOriginal Paper

Jiøí Lehejèek, Gabriel Vávrù, Sangay Wangchuk, Miroslav Svoboda, Katrien Boonen

J. For. Sci., 2025, 71(10):516-524 | DOI: 10.17221/58/2025-JFS

Mountain ecosystems, especially those at the highest altitudes, are sensitive to current climate change. Proxy archives may provide an insightful tool to better understand ongoing changes and evaluate future scenarios. Trees have traditionally been used as such archives, as they often respond sensitively to environmental change. Thus, we studied tree-ring records of forest-line species Abies densa Griff. growing in the Eastern Himalayas, central Bhutan, to evaluate the effect of climate on the growth of this species. The annual chronologies were generated using standard dendrochronological methods and then compared with climatic data from the CRU TS database. The results demonstrate a negative effect of summer temperatures on the width of the annual rings, suggesting possible stress caused by higher temperatures during the monsoon season. On the other hand, a positive effect of temperatures on tree growth was observed during late winter months. The response to rainfall was mixed, with a positive effect on growth in November and a negative effect in May and January, suggesting a later onset of the vegetation season. To our knowledge, we present the first dendroclimatological study on this long-lived species in central Bhutan, portraying its potential for future climate and environmental research and applications.

Sperm quality improvement of cryopreserved boar semen through colloidal centrifugation gradientOriginal Paper

Francisco Sevilla, Ignacio Araya-Zúñiga, Patricia Cervantes-Acosta, Antonio Hernández-Beltrán, Manuel Barrientos, Belisario Domínguez, Anthony Valverde

Czech J. Anim. Sci., 2025, 70(11):489-497 | DOI: 10.17221/103/2025-CJAS


Boar semen cryopreservation is limited due to the lower thermal shock resistance of sperm cells. A colloidal centrifugation gradient is an enhancement to cryopreservation that could improve the frozen boar semen quality. Cryopreserved boar semen quality was evaluated using a commercial colloidal centrifugation gradient. A total of 15 ejaculates from 5 boars were evaluated across two treatments: a control without colloidal centrifugation and a treatment with commercial colloidal centrifugation. A manual freezing method used two freezing curves in liquid nitrogen. Sperm motility was assessed by Computer-Assisted Semen Analysis, as well as sperm capacitation-like membrane destabilisation at 30 min and 150 min after thawing using Merocyanine 540 (M540) for samples incubated at 37 °C. Spectrophotometry measured lipid peroxidation indirectly by the amount of malondialdehyde; reactive oxygen species production was also determined for sperm samples incubated for 30 minutes. The gradient centrifugation treatment improved ejaculate sperm motility and membrane destabilisation. The proportion of morphologically normal sperm was higher in the gradient than in the control. A total of 74% of spermatozoa retained normal morphology. Lipid peroxidation was lower in the colloidal centrifugation treatment. MDA was lower with gradient (16.4 ± 2.5 vs 22.3 ± 2.5 µmol/30 × 106 sperm; P < 0.05). Intracellular reactive oxygen species (ROS) and M540 positivity did not differ significantly between the treatments at either time point. The centrifugation process improved the quality parameters of frozen boar semen after thawing.

Agronomic bio-fortification of iron, zinc and selenium enhance growth, quality and uptake of different sorghum accessionsOriginal Paper

Muhammad Tamoor Qureshi, Muhammad Faizan Ahmad, Nasir Iqbal, Hasnain Waheed, Sajad Hussain, Marián Brestiè, Adeel Anjum, Ijaz Rasool Noorka

Plant Soil Environ., 2021, 67(10):549-557 | DOI: 10.17221/137/2021-PSE

Agronomic bio-fortification is one of the main approaches for mitigation of micronutrient shortage in human populations and endorses sustainable production of food and feed. Studies related to agronomic bio-fortification of crops are mainly focused on single or rarely two micronutrients application, and no attempt has made to study the combined effect of zinc (Zn), iron (Fe) and selenium (Se) on forage sorghum. Therefore, this research was accomplished to evaluate the effect of Zn, Fe and Se bio-fortification on diverse sorghum accessions. The field experiments were conducted in a randomised complete block design with a split-plot arrangement. The treatments comprised of Zn (10 mg/L as ZnSO4∙5H2O), Fe (7 mg/L as FeSO4∙7H2O), Se (3 mg/L as SeSO4) and CK (control) were applied to five sorghum accessions: G1 (Y-16), G2 (YSH-166), G3 (YSH-134), G4 (YSS-98) and G5 (YSH-132). According to our results, the sorghum accession G5 showed superiority over all other accessions and produced maximum values of all growth and quality traits except grains number per panicle and 1 000-grain weight. All applied micronutrients (Zn, Fe and Se) enhanced the growth, quality and uptake of nutrients in sorghum accessions. However, Se recorded the highest plant height, stem diameter, 1 000-grain weight and Zn produced the maximum protein, oil and starch contents. Conclusively, it can be concluded that G5 with Se must be used to achieve the optimum values of agronomic traits, while G5 with Zn found more effective to improve the quality traits of sorghum.

Agricultural production trends towards carbon neutrality in response to the EU 2030 Green Deal: Economic and environmental analysis in horticultureOriginal Paper

Alessandro Scuderi, Mariarita Cammarata, Ferdinando Branca, Giuseppe Timpanaro

Agric. Econ. - Czech, 2021, 67(11):435-444 | DOI: 10.17221/145/2021-AGRICECON

The European Green Deal to tackle climate change sets emission reduction targets for 2050. Particular attention has been paid to the agricultural sector, where there is a strong need to reduce carbon emissions and re-establish the natural carbon cycles. The concept of carbon neutrality is emerging in a scenario where it is necessary to reduce carbon dioxide (CO2) emissions from cultivation to near zero. The quantification of carbon emissions was carried out by the carbon footprint (CF) of conventional, organic and zero residue potato cultivation in Sicily. In order to provide farmers and consumers with answers regarding the most sustainable cultivation regime, the results showed that the organic and zero residue methods have the best results in terms of emissions; the latter instead revealed the positive results in economic terms. It becomes a new model to follow in the pursuit of sustainability as it is based on the reduction of synthesis inputs and is free from the constraints imposed by organic production standards.

Effect of dehulled lupin seeds in feed mixture on muscle protein quality of ducklingsOriginal Paper

Eva Straková, Lucie V¹etièková, Pavel Suchý, Martin Kutlva¹r

Czech J. Anim. Sci., 2025, 70(2):64-71 | DOI: 10.17221/9/2025-CJAS



The aim of the study was to prepare and test the effect of diets with 50% and 100% replacement of soybean meal with dehulled seeds of white lupin (Lupinus albus) variety Zulika. One hundred and eighty Cherry Valley duckling were divided to control group (C) and two experimental groups E50 (50% replacement of soybean meal with dehulled white lupin meal) and E100 (100% replacement of soybean meal with dehulled white lupin meal). There were evaluated the production parameters and the amino acid spectrum of breast and thigh muscles up to 42 days of age. The effect of diets containing lupin meal had no negative effect on the yield of duckling. In particular, positively can be evaluated higher growth rate in the experimental groups compared to the control (C 3.22 ± 0.28 kg, E50 3.40 ± 0.27 kg, E100 3.48 ± 0.28 kg), at the same time significantly lower mortality in the experimental groups compared to the control (C 5.88%, E50 1.47%, E100 1.49%) and, except for E100, minimal differences in feed conversion ratio (C 2.33 kg/kg, E50 2.27 kg/kg, E100 2.71 kg/kg). Feeding diets based on lupin meal resulted in the reduction of most essential and non-essential amino acids (P ≤ 0.05) in the dry matter content of both breast and thigh muscle (E50, E100). Lupine meal-based diets positively influenced ducks’ health, which was reflected by lower mortality rate in the experimental groups. Therefore, the results show that diets based on lupin meal had a positive effect on the health and welfare of intensively fattened ducks and that they affected positively the economic aspect of breeding.

Simple and robust sex determination in papaya (Carica papaya L.) cultivars using SCAR markerOriginal Paper

K Soumiya, I Muthuvel, C Kavitha, K Chandrakumar, K A Shanmugasundaram, N Manikanda Boopathi

Hort. Sci. (Prague), 2025, 52(1):61-66 | DOI: 10.17221/145/2023-HORTSCI

For viable papaya production, more hermaphrodite plants are needed than male and female (though they produce inferior fruits). To this end, the sex of the plants must be ascertained early in their growth cycle, which is not possible with conventional methods. Molecular marker has shown its utility for this purpose, and in this study, 100 seedlings of the CO 7 gynodioecious variety and 100 seedlings of the CO 8 dioecious variety that were released from this university were analysed for their sex using the RAPD-SCAR (randomly amplified polymorphic DNA-sequence characterised amplified region) marker, T12. In those lines under investigation, the T12 marker’s presence indicated male lines, while its absence indicated female or hermaphrodite lines. To confirm that there was no experimental error – that is, the lack of the SCAR marker was caused by the non-existence of the complementary target region – an oligomer primer called OPA 04 was initially employed as a control to validate the molecular marker system among the lines under investigation. Results of this study have shown that T12 has achieved 97% and 98% accuracy in correctly identifying the male and hermaphrodite flowers in the field in CO 7 and CO 8 accessions, respectively. A similarity search of the sequences of the polymerase chain reaction (PCR) product amplified by T12 from CO 7 and CO 8 has highlighted that they matched with male-specific regions of the papaya Y chromosome. Further, it was estimated that by employing molecularly certified papaya seedlings with predetermined sex, farmers could save up to 55% on labour costs when compared to approaches that use seedlings from conventional ways by implying the removal of male plants. Thus, the findings of this study help growers and breeders to identify sex early and guarantee profitable papaya production.

Application of cold atmospheric microwave plasma on four domestic pigeons (Columba livia domestica) with open woundsCase Report

K Zelaya, JH Han, J Kim, SY Ahn, YD Suh, DN Lee, SC Yeon

Vet Med - Czech, 2025, 70(6):218-225 | DOI: 10.17221/13/2025-VETMED

This paper reports the feasibility of cold atmospheric microwave plasma (CAMP) therapy for birds with open wounds. Four domestic pigeons (Columba livia domestica) with open wounds of varying severity were treated with CAMP as an adjunct to conventional therapy. Wound healing was assessed using a modified scoring system during each treatment session, and the extent of healing was calculated as a percentage. The results revealed variability in wound improvement across cases, influenced by the initial severity of the wounds. In some cases, the outcomes were limited due to underlying conditions that overrode the recovery process, suggesting that the extent of healing may depend more on the initial wound condition than the treatment itself. Nevertheless, other cases showed positive results in healing and recovery under CAMP therapy, highlighting its potential benefits. No adverse reactions or complications were encountered, supporting its safety for avian wound management. These findings suggest that although CAMP can potentially promote wound healing, further studies will be needed to establish standardised treatment protocols.

Effects of benzalkonium chloride adaptation on controlling Listeria monocytogenes biofilms and its growth in foodOriginal Paper

Honghui Wang, Yamin Ren, Yanhong Tang, Mingyu Zhang, Xiaoli Zou

Czech J. Food Sci., 2025, 43(3):216-225 | DOI: 10.17221/40/2025-CJFS

In this study the eradication effectiveness of four commonly used disinfectants against benzalkonium chloride (BC) adapted and non-adapted biofilms of Listeria monocytogenes was compared and the effects of food preservatives on the growth of these strains were comparatively evaluated on pasteurised chicken sausage. After BC adaptation, the minimum inhibitory concentrations (MICs) of BC against planktonic bacteria of L. monocytogenes increased, while the MICs of chlorine dioxide remained unchanged. BC adapted strains showed stronger biofilm formation than the wild-type parents. When used at 1 × MIC, the eradication rates of chlorine dioxide on biofilm biomass, cell viability and biofilm extracellular polymeric substance were higher than BC. When used at the recommended concentrations, chlorine dioxide exhibited the highest efficiency in BC adapted and non-adapted biofilm eradication. Among the four food preservatives, nisin showed the highest inhibition of both BC adapted and non-adapted strains grown on pasteurised chicken sausage. Our data suggest that proper use of BC is required to reduce the exposure of L. monocytogenes to sublethal concentrations of BC and the emergence of BC adapted strains.

Blastocystis first detected in Sciurus vulgaris and Sciurus vulgaris exalbidus in Chengdu, ChinaOriginal Paper

X Li, H Huang, Y Liu, W Meng, Z Zhong, Z Zhou, G Peng, J Han, H Liu

Vet Med - Czech, 2025, 70(9):329-334 | DOI: 10.17221/71/2024-VETMED

The anaerobic unicellular protist Blastocystis is widely recognised for its presence in the gastrointestinal systems of humans and various animals globally. However, there is a paucity of reports on the prevalence and subtype (ST) distribution of Blastocystis in the squirrel population. This study was conducted to determine the prevalence and genetic diversity of Blastocystis, as well as its zoonotic potential, among Sciurus vulgaris and Sciurus vulgaris exalbidus in Chengdu, China. A total of 41 faecal samples (31 from Sciurus vulgaris, 10 from Sciurus vulgaris exalbidus) were analysed for the presence of Blastocystis sp. using the polymerase chain reaction (PCR) amplification of the small subunit ribosomal RNA (SSU rRNA) gene. Our findings revealed a positive rate of 4.88% (2/41 samples) for Blastocystis sp., with both identified as ST4 through nucleotide sequence homology and phylogenetic analysis. Given the zoonotic nature of this subtype, farmed squirrels may serve as potential reservoirs for Blastocystis transmission to humans and domestic animals. These findings are essential for developing effective control strategies against Blastocystis in the study region and enhancing our comprehension of the genetic spectrum of Blastocystis within Sciurus vulgaris and Sciurus vulgaris exalbidus.

Accumulation of heavy metal pollution caused by traffic in forest trees in the park of Kerey and Janibek Khans of the city of Nur-Sultan, KazakhstanOriginal Paper

Sezgin Ayan, Dani Sarsekova, Gani Kenesaryuly, Ergin Yilmaz, Orhan Gülseven, Ilknur ªahin

J. For. Sci., 2021, 67(7):357-366 | DOI: 10.17221/37/2021-JFS

Air quality in Nur-Sultan, the fast-growing new capital city of Kazakhstan, has been poorly investigated. This research was carried in Kerey and Janibek Khans Park in Nur-Sultan, the capital city of Kazakhstan, which is affected by "different traffic density" on the roads. Three different categories of contamination (i) high pollution (distance from the main road 10-15 m), (ii) moderate pollution (distance from the side road 15-30 m), and (iii) low pollution (distance from the source of contamination 30-80 m) at different levels resulting from urban transportation were examined. The aim of the study is to determine the pollution accumulation amounts of Ni, Cd, Pb, Cr, Li, Co, Fe, and Zn in five different tree species: Norway spruce (Picea abies /L./ H. Karst.), blue spruce (Picea pungens Engelm.), Scots pine (Pinus sylvestris L.,), Siberian larch (Larix sibirica Ledeb.), and silver birch (Betula pendula Roth). Significant differences in Ni, Cd, Pb, Cr, Li, Co, Fe, and Zn accumulation amounts were determined between three different parts of the park exposed to different levels of contamination. Approximately twice higher Ni, 2.3 times Cd, 3.3 times Pb, 2.7 times Co, 1.6 times Zn accumulation were determined in the area exposed to high pollution than in the parts of the park exposed to low pollution. Cd deposition in the area exposed to high contamination was higher in silver birch than in Scots pine and Norway spruce, while Cr and Co deposition values were higher in Norway spruce than in birch and Scots pine.

Observed changes in the agroclimatic zones in the Czech Republic between 1961 and 2019Original Paper

Miroslav Trnka, Jan Balek, Rudolf Brázdil, Martin Dubrovský, Josef Eitzinger, Petr Hlavinka, Filip Chuchma, Martin Mo¾ný, Ilja Prá¹il, Pavel Rù¾ek, Daniela Semerádová, Petr ©tìpánek, Pavel Zahradníèek, Zdenìk ®alud

Plant Soil Environ., 2021, 67(3):154-163 | DOI: 10.17221/327/2020-PSE

The paper shows a large-scale shift in agroclimatic zones in the territory of the Czech Republic (CR) between 1961 and 2019. The method used for agroclimatic zoning took advantage of high-resolution (0.5 km × 0.5 km) daily climate data collected from 268 climatological and 787 rain-gauge stations. The climate information was combined with soil and terrain data at the same resolution. The set of seven agroclimatic indicators allowed us to estimate rates of changes in agroclimatic conditions over the 1961-2019 period, including changes in the air temperature regime, global radiation, drought, frost risks and snow cover occurrence. These indicators are relevant for all main crops and agroclimatic zoning and account for local soil and slope conditions. The study clearly highlights major shifts in the type and extent of agroclimatic zones between 1961-2000 and 2000-2019, which led to the occurrence of entirely new combinations of agroclimatic indicators.

How does climate shock affect technology adoption in rice production?Original Paper

Thai Phan Nguyen, Duc Kien Nguyen, Quang Dung Truong

Agric. Econ. - Czech, 2025, 71(1):14-26 | DOI: 10.17221/296/2024-AGRICECON

The objective of the study is to determine the impact of shock from climate change, such as drought and flood, on various technology adoptions in rice production in Vietnam. This study utilised VARHS (The Vietnam Access to Resources Household Survey) panel data from 2012 to 2018 and employed regression analysis following the application of propensity score matching (PSM) to address potential selection bias caused by drought and flood shocks. The findings indicated that households tend to adopt the improved variety of rice and organic fertilisers since households suffer the shock from the drought. Another finding showed that households used more chemical fertiliser and reduced the probability of using improved seeds in rice production since the household was affected by floods. Based on the findings, policies should prioritise promoting and implementing environmentally friendly farming methods that are customised to address specific climate-related difficulties.

Mapping and monitoring of weeds using unmanned aircraft systems and remote sensingReview

Pon Arasan A., S. Radhamani, S. Pazhanivelan, R. Kavitha, R. Raja, R. Kumaraperumal

Plant Protect. Sci., 2025, 61(1):44-55 | DOI: 10.17221/74/2024-PPS

Effective weed management relies on frequent field monitoring, which is difficult to perform in vast areas. Integrating red-green-blue, thermal, hyperspectral, and multispectral sensors with unmanned aircraft systems and artificial intelligence ensures better results in managing the weed menace. Since India depends largely on agriculture, it is still a long way from implementing more advanced weed management methods. Mapping and surveillance of weeds in croplands by employing remote sensing will lead to varied herbicide application rates, thus reducing its overuse. This study reviews the practical application of remote sensing methods and unmanned aircraft systems in weed mapping

Allogeneic adipose MSCs and autologous PRP for chronic non-healing wound in a catCase Report

N Suwan, S Jenjittikul, R Tiratrakoonseree, C Jiradanaipat, S Teerawongsuwan, Wi Phathomrapeepong, W Phanwanich, R Rungsiwiwut

Vet Med - Czech, 2025, 70(4):143-149 | DOI: 10.17221/93/2024-VETMED

Management of chronic non-healing wounds in cats requires a comprehensive approach. This report describes the treatment of a severe open skin wound on the skull using a combined approach involving allogeneic adipose-derived mesenchymal stem cells (MSCs) and autologous platelet-rich plasma (PRP). A 12-year-old neutered male mixed-breed domestic cat presented with a non-healing chronic wound on the skull. The wound extended from the orbital to the occipital area and from the left to the right temporal region. Laboratory test results were positive for feline immunodeficiency virus and impaired kidney function. Sensitivity tests revealed resistance to several antibiotics. Due to limited skin reconstruction options, MSCs were administered subcutaneously at the wound edge once a month for three months. PRP was collected one month after the initial MSC administration and injected at the wound edge monthly between MSC treatments. The wound diameter was measured daily during saline cleaning. The cat received protein-supplemented food daily. Wound healing was observed two weeks after the MSC administration, gradually decreasing in size and closing completely within 5 months. This case demonstrates the successful application of MSCs and PRP for treating chronic wounds in cats.

Effects of low-protein diet supplemented with exogenous protease on growth performance and intestinal health of broiler chickensOriginal Paper

Xin Hao, Guifeng Zhang, Yilin Ge, Jie Wang, Weiren Yang, Lijie Yang

Czech J. Anim. Sci., 2025, 70(4):147-159 | DOI: 10.17221/18/2025-CJAS

This experiment was conducted to study the effects of low-protein diet supplemented with exogenous protease on performance and intestinal health of broilers. A total of 560 one-day-old male Arbor Acres broiler chickens were randomly divided into 5 treatments with 8 replicates (12 birds per replicate) in a completely randomised design. The treatments were as follows: (1) maize-soybean meal basal diet (CON); (2) negative control with crude protein being 1% lower than in CON (NCON); (3) NCON + 12 000 U/kg coated alkaline protease (NCAP); (4) NCON + 16 000 U/kg alkaline protease (NAP); (5) NCON + 16 000 U/kg keratinase (NKA). The remaining 80 birds (10 replicates, 8 birds per replicate) were randomly assigned to endogenous indicator measurements. The results indicated that the NCON diet resulted in a higher feed-to-gain ratio and reduced protein digestibility, ileal amino acid digestibility, and intestinal morphological parameters (P < 0.05). Supplementation of different exogenous proteases significantly improved the apparent and true ileal digestibility of specific amino acids, enhanced jejunal chymotrypsin activity, and promoted intestinal morphological development, including increased villus height and villus height-to-crypt depth ratio (P < 0.05). Our findings suggested that the addition of exogenous protease improved the intestinal morphology of broilers.

Perception of bimodal warning cues during remote supervision of autonomous agricultural machinesOriginal Paper

Anita Chidera Ezeagba, Cheryl Mary Glazebrook, Daniel Delmar Mann

Res. Agr. Eng., 2025, 71(2):69-79 | DOI: 10.17221/73/2024-RAE

Agricultural machines that are fully autonomous will still need human supervisors to monitor and troubleshoot system failures. Recognising the emergency as soon as possible is crucial to reduce adverse effects. The ability of humans to detect visual, auditory, or tactile cues is usually enabled by warning systems. The effectiveness of different warning cues varies in terms of prompting a quick response. The study’s objective was to compare the effectiveness of two bimodal warnings (i.e., visual-auditory and visual-tactile) at eliciting supervisor perception (which equates to level one situation awareness). Twenty-five participants engaged in an autonomous sprayer simulation. Two realistic remote supervision scenarios (i.e., in-field and close-to-field) were used to examine two bimodal warning cues: (i) visual-auditory and (ii) visual-tactile. The effectiveness of each bimodal warning was assessed based on two measures: (i) response time and (ii) noticeability. There was no significant difference between the bimodal warning cues in terms of response time when tractor sound was present in the experimental environment (reflecting the in-field remote supervision scenario); however, visual-tactile cues yielded shorter response times than visual-auditory cues when the experimental environment was quiet (reflecting the close-to-field remote supervision scenario). There were no statistically significant differences between visual-auditory and visual-tactile warnings concerning noticeability. Participants’ subjective answers indicated they preferred the visual-tactile cues better than the visual-auditory cues. It is concluded that visual-tactile warnings are preferred over visual-auditory warnings to enable perception during remote supervision of autonomous agricultural machines (AAMs).

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