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Results 901 to 930 of 4875:

Optimisation of konjac glucomannan extraction conditions using response surface methodologyOriginal Paper

Jiajia Dai, Yuyan Zhou, Yike Han, Banan Wei, Jing Ou, Xinyue Zhou, Yujuan Chen, Shushu Ding, Guodong Wang, Donglin Zhang

[Ahead of Print]CAAS Agricultural Journals, X:X | DOI: 10.17221/177/2025-CJFS

Konjac glucomannan (KGM), derived from konjac tubers, is a novel functional plant polysaccharide that plays a significant role in antioxidant activity, anti-tumour effects and blood glucose regulation. This study aimed to develop an optimal extraction method for KGM. The extraction yield of KGM was surveyed quantitatively analysed using a response surface central composite design (CCD) to maximise the yield. A quadratic regression model was created to illustrate the interactions between the factors influencing KGM extraction yield. The findings indicated that the effects of extraction temperature and the liquid-to-solid ratio had a greater impact on the extraction yield of KGM than the extraction time and extraction frequency. The optimal extraction conditions for KGM were determined to be an extraction temperature of 100 °C, an extraction time of 2 h, an extraction frequency of 2, and a liquid-to-solid ratio of 113 : 1. Under these optimal conditions, the extraction yield of KGM reached 15.31%.

Epidemiological insights into bovine helminthiasis in Upper Egypt: Prevalence, risk factors, and pathological findingsOriginal Paper

AA Khedr, SM AbdelRaheem, MM Farghaly, SI Alsultan, M Abdulmohsen, S Fathi El-Hawari, WG El-Dein Mahmoud

Vet Med - Czech, 2025, 70(10):339-357 | DOI: 10.17221/112/2024-VETMED


This study examines the prevalence of helminthic infestations, risk factors, and odds ratios in 1 300 cattle, revealing significant patterns in parasite distribution and influencing factors. Overall, 60.3% of cattle were infested with one or more types of parasites, with Moniezia spp. being the most prevalent (46.9%), followed by Fasciola spp. (36.9%), Paramphistomum spp. (26.8%), and Avitellina spp. (10.8%). Among the seasons, winter exhibited the highest infestation rate (66.1%), and calves under one year of age were more commonly infested (64.2%) than older cattle (over three years: 51.1%, OR = 0.584 1). Distinct seasonal and age-related patterns were observed for specific parasites. Fasciola spp. was most prevalent in winter (45.09%) and among the youngest cattle (47.87%), while Paramphistomum spp. and Moniezia spp. showed less variation across seasons. Avitellina spp. had the lowest infestation rates in the spring, and cattle older than three years were affected. Co-infections were common, notably between Fasciola and other parasites, with the highest co-infestation rate observed between Avitellina spp. and Moniezia spp. Analysis of deworming efficacy indicated higher treatment success for Fasciola spp. and Paramphistomum spp., lower odds of response for Avitellina spp., and no significant treatment effect for Moniezia spp. Microscopic and pathological examinations were also conducted. These results demonstrate the necessity of thorough deworming procedures along with targeted parasite control to reduce significant health hazards in cattle populations.

Effect of leaf-to-fruit ratio on kernel quality formation of walnut treesOriginal Paper

Linhui Feng, Xian’an Yang, Shiwei Wang, Honglong Hao, Cuifang Zhang, Yicheng Gao, Yuqi Wang, Yusufu Alifu, Wenhui Zhao

Hort. Sci. (Prague), 2025, 52(3):201-210 | DOI: 10.17221/69/2024-HORTSCI

The study focused on the relationship between leaf-to-fruit ratio (LFR) and walnut kernel quality in Juglans regia ‘Wen 185’. It was investigated how LFR influences single kernel weight, the contents and percentages of organic matter in kernels, the 13C distribution proportion (13CDP) in crude fat and protein, and the number and size of oil bodies within the kernels. A gradually decreasing LFR led to reduced single kernel weight, the contents of crude fat, crude protein, and soluble sugar dramatically (P < 0.05), with no significant changes in the percentages and (13CDP) of crude fat, crude protein, and soluble sugar (P > 0.05). Moreover, there were no significant differences in the number of oil bodies per unit area and the size of oil bodies in kernel cotyledons and endosperm storage cells among the different LFR (P > 0.05). We propose that the walnut kernel quality depends on the proportion of sugar converted into fat and protein in the kernels, that the changes in LFR affect the amount of sugar accumulated in kernels but not the proportion of sugar converted to fat and protein, and that the LFR, therefore, have no effect on the percentages of crude fat and crude protein in walnut kernels.

The influence of LED light on the development and antioxidant status of broccoli (Brassica oleracea var. italica) microgreensOriginal Paper

Suzana Pavloviæ, Zdenka Girek, Jelena Damnjanoviæ, Svetlana Roljeviæ Nikoliæ, Dragana Stevanoviæ, Milan Ugrinoviæ

Hort. Sci. (Prague), 2025, 52(3):272-280 | DOI: 10.17221/44/2024-HORTSCI

The aim of the research was to examine the influence of different light treatments on the growth, phytochemicals and antioxidant potential of broccoli microgreens. Plants were grown in a growth chamber under LED (light-emitting diode) cold white, red and blue light and under fluorescent cold white light (control). The results showed that white and blue light treatments were the best for microgreen growth. Higher concentration of pigments was recorded in plants grown under LED light compared to those grown under FL (fluorescent lamp) light. The content of phenols and flavonoids had a positive and significant correlation with DPPH (2,2-diphenyl-1-picrylhydrazyl) antioxidative capacity (r = 0.66 and r = 0.90, respectively). The first two principal components account for 97.92 % of the total variation of all observed traits in this trial. Based on the PCA (principal component analysis) results, it can be concluded that the traits total phenols content, carotenoid content, chlorophyll a and b content make up the largest share of variability in the obtained results and that the red light conditions were the most unfavourable for the content of phytochemical compounds and antioxidant potential.

A review of research on hybrid unmanned vehicles in complex forest and grassland terrainsReview

Peng Wang, Kangkang Pan, Jun Yuan, Sipu Pan, Yujin Yang

J. For. Sci., 2025, 71(11):525-541 | DOI: 10.17221/65/2025-JFS

The sustainable management of European forest ecosystems necessitates innovative mechanisation solutions to address operational challenges in hilly, mountainous, and ecologically sensitive terrains. Hybrid-drive unmanned vehicles (HDUVs) present a transformative potential by integrating fuel-electric powertrains with autonomous navigation systems, enabling energy-efficient operations with minimal environmental impact. This review synthesises and critically analyses advancements in three critical domains: (i) dynamic modelling and chassis design for enhanced terrain adaptability, (ii) hybrid powertrain optimisation for reduced emissions and extended operational range, and (iii) the integration of unmanned systems for precision forestry tasks. By examining multi-body dynamics, power management strategies, and AI-driven navigation algorithms, we elucidate the role of HDUVs in improving operational efficiency while mitigating soil disturbance and carbon footprint. The review identifies prevailing research gaps and suggests that future work should prioritise the development of standardised testing protocols and foster cross-disciplinary collaboration to align HDUV development with EU biodiversity and climate objectives.

Improvement of lucerne germination and seedling performance through a combined seed priming methodOriginal Paper

Ondøej Szabó, Michaela Kovandová, Zuzana Hrevu¹ová, Saniya Tyulendinova, Josef Hakl

Plant Soil Environ., 2025, 71(9):595-603 | DOI: 10.17221/260/2025-PSE

Seed priming is an effective seed treatment procedure and has been shown to improve the emergence of seedlings in various crops. However, there is a lack of systematic research for these techniques in lucerne (Medicago sativa L.), especially for combinations of priming agents. This study aimed to screen 22 biologically active compounds and then to evaluate the potential of combinations of these agents, assessing the dynamics of germination, seedling length, and performance, in a pot experiment for selected combinations. About half of the screened agents increased germination rate (on the 3rd day) or seedling length (from 8% to 75%), where chitosan and green tea improved total germination and seedling formation. The selected combination of priming agents improved only seedling growth compared to hydropriming and control, where the combination of fermented weed juice + green tea and H2O2 + thyme infusion seems effective (+61%). In the pot experiment, only a combination of mixed priming with the coating method led to improved lucerne root growth (+33% compared to the untreated control). These results can contribute to the adoption of easily available, cost-effective, and sustainable treatments with the potential to accelerate germination and lucerne seedling development.

Effect of abscisic acid and epibrassinolide on physiological and hormonal responses of tomato plants subjected to water stressOriginal Paper

Jaromir Janousek, Zuzana Kovalikova, Alena Gaudinová, Jozef Lacek, Jiri Tuma

Plant Soil Environ., 2025, 71(9):638-649 | DOI: 10.17221/151/2025-PSE

In this study, the effect of abscisic acid (ABA; 150 μmol) or epibrassinolide (EBL, 3 μmol) in mitigating the adverse drought conditions was evaluated in tomato plants (Solanum lycopersicum L. cv. Vilma). Potted plants were subjected to two 6-day periods separated by a one-time rehydration. Results showed that water deficit increased the content of superoxide radical (O2•−), malondialdehyde (MDA), proline, ABA and its metabolites. On the other hand, the studied cytokinins showed a rather opposite trend. ABA application maintained and later reduced the O2•− content. At the same time, the MDA level was lower but later increased, while the proline content was reduced compared to untreated plants. This indicates that ABA helps the plants cope with the initial stress phase. In addition, ABA-activated signalling pathways showed increased levels of ABA, auxins, salicylic acid or jasmonic acid. EBL even more increased O2•− and proline content. At the same time, EBL increased the content of auxins, jasmonic acid and later ABA. In contrast, a decrease in salicylic acid and cytokinins was monitored. These findings indicate that ABA contributed to improved stress responses through early phytohormone-mediated signalling and reduction of stress markers, whereas EBL appeared less effective under our experimental conditions.

Species-specific responses of wheat and maize to thallium stress under elevated CO2: effects on yield, photosynthesis, and metabolismOriginal Paper

Samy Selim Abdelsalam, Soad K. Al Jaouni, Seham M. Hamed, Emad A. Alsherif, Afrah E. Mohammed, Modhi O. Alotaibi, Danyah A. Aldailami, Wael A. Obaid

Plant Soil Environ., 2025, 71(9):666-679 | DOI: 10.17221/328/2025-PSE

Heavy metal stress inhibits plant growth, but this impact is less studied and pronounced under climate change conditions. The present study investigates the physiological, biochemical, and agronomic responses of wheat (C3) and maize (C4) exposed to varying thallium (Tl) stress (60 and 120 mg/kg) under ambient (aCO2) and elevated (eCO2, 710 µmol/mol) CO2 levels. High Tl exposure markedly reduced grain yield by 58% in wheat and 68% in maize at 120 mg/kg under aCO2. However, eCO2 partially offset the negative effects, increasing yield by ~20% in wheat and 36% in maize at 60 mg/kg Tl. eCO2 enhanced photosynthetic activity under eCO2, which increased the accumulation of soluble sugars under TI stress. These provide carbon skeletons for the synthesis of primary metabolites such as amino acids, organic acids and fatty acids. Although total fatty acid content declined under stress, the metabolic crosstalk initiated by improved photosynthesis and sugar availability enables plants to maintain key fatty acids (such as palmitic, linolenic, and oleic acids) essential for membrane stability and function. Amino acids, especially proline and cysteine, accumulated significantly under Tl stress. These primary metabolites, in turn, feed into secondary metabolic pathways, promoting the formation of phenolic acids and flavonoids that enhance antioxidant defence and stress tolerance. This metabolic cascade explains eCO2’s capacity to alleviate TI stress and improve crop performance, and underscores the value of leveraging eCO2 environments to support agricultural productivity and food security under challenging conditions.

Rheological properties of banana fruit in the creep test: Effect of variety and ripeness levelOriginal Paper

Nursigit Bintoro, Bambang Purwantana, Bayu Nugraha, Surya Abdul Muttalib, Slamet Sulistiadi, Vivien Fathuroya

Res. Agr. Eng., 2025, 71(3):163-173 | DOI: 10.17221/12/2025-RAE


Banana quality is influenced by many factors, including variety and level of fruit ripeness. This quality can be evaluated from various points of view, one of which is the rheological consideration. Rheological properties are very important to study because they determine the design of equipment and processes, and minimise product damage. The aim of this research was to analyse and model the effect of variety and ripeness level on the rheological properties of banana fruit by applying a creep test. This research was carried out using a factorial experimental design 3 × 3 with 5 replications. Three varieties of banana, namely Ambon (Musa parasidiaca var. sapientum L. Kunt.), Raja (Musa parasidiaca L.), and Kepok (Musa acuminata balbisiana Colla) and each in three levels of ripeness, namely mature green, half ripe, and ripe. It was found that the parameters of the rheological properties of bananas changed according to the ripeness level (P < 0.05). The values of these rheological parameters decreased as the bananas ripened. Meanwhile, the variety and the interaction between variety and ripeness had no significant influence on the rheological parameters measured (P > 0.05). The constants of the four-element Burger model changed with the ripeness in all banana varieties. The Burger model with four elements could accurately predict the strain value of bananas tested in the creep test.

Study on the drying kinetics of Rosa flower buds using different drying methodsOriginal Paper

Hamid Reza Gazor, Omid Reza Roustapour

Res. Agr. Eng., 2025, 71(4):213-223 | DOI: 10.17221/43/2025-RAE


This study investigated the drying kinetics of Rosa flower buds (Rosa damascene Mill) under environmental conditions (shade), as well as in direct and indirect solar dryers. The effects of 40 °C, 50 °C, and 60 °C temperatures on the drying of the buds were also examined using a laboratory cabinet dryer. The drying rate of the Rosa flower buds was compared with various mathematical models, and the parameters of these models were evaluated. The results illustrated that drying Rosa flower buds under shade required a lengthy period time of approximately 13 days. In contrast, utilising solar dryers significantly reduced the drying period time for Rosa flower buds. Also, compared to the ambient drying method, the use of indirect solar dryers had the most substantial effect on decreasing the drying period time of the buds up to 86.6%. Furthermore, applying a temperature of 60 °C in the laboratory dryer reduced the drying time of the buds by 76.2% compared to a temperature of 40 °C. The Midilli et al. model (MDM), Page model (PM) and approximate diffusion model (ADM) demonstrated a good fit with the experimental data and can be employed to represent the drying behaviour of Rosa flower buds. The effective of moisture diffusivity of Rosa flower buds during drying was found to be in a range from 6.87 × 10–12 to 1.89 × 10–10 m²·s–1 and the activation energy values were determined as 65.30 and 72.80 kJ∙mol–1 for buds which were dried in the laboratory cabinet dryer and those dried using the ambient and solar dryer methods, respectively.

Potential of Thuja plicata and Chamaecyparis lawsoniana in the context of global climate change in the Czech RepublicOriginal Paper

Pavel Horák, Petra Jablonická, Robert Knott

J. For. Sci., 2025, 71(9):426-440 | DOI: 10.17221/51/2025-JFS

The introduction of non-native tree species is considered a potential adaptation strategy to global climate change (GCC) in the forestry sector. As some of the most widespread native species are undergoing stand disintegration due to both abiotic and biotic stressors, the search for alternative species becomes essential. These species can overwhelm native species with both production potential and adaptation to a changing climate. The research focused on climate-growth relationships of two introduced species of the Cupressaceae family, western redcedar (Thuja plicata Donn ex D. Don) and Lawson's cypress [Chamaecyparis lawsoniana (A. Murray) Parl.], in comparison with the native Scots pine (Pinus sylvestris L.) in the northeast part of the Czech Republic. The constructed tree ring chronologies were used as a basis for dendroclimatological analyses: basal area increment (BAI), linear growth trends, Pearson's correlations between climate variables and growth, resilience indices and others. Among the analysed species, Thuja plicata revealed the highest BAI and the most positive growth trend in the last 35 years, with values 2–3 times higher. The Chamaecyparis lawsoniana exhibited the highest negative correlation with mean summer temperatures. In general, Pinus sylvestris showed the highest correlations with precipitation. No clear pattern in resilience indices has been observed. Among the two introduced tree species examined, Thuja plicata emerges as a particularly promising candidate for future application in Central European conditions under ongoing GCC.

Progress and prospects in understanding the effects of forest management practices on soil nitrogen cyclingReview

Lili Liu, Chenyi Yu, Jiayi Yang, Zijun Zhang, Qingwei Guan

J. For. Sci., 2025, 71(10):469-481 | DOI: 10.17221/61/2025-JFS

Soil nitrogen (N) cycling plays a pivotal role in forest ecosystem productivity and nutrient regulation. This review synthesises recent advances in understanding how forest management practices influence soil nitrogen cycling and highlights future research priorities for elucidating underlying mechanisms and optimising forest ecosystem functioning (Figure 1). Management interventions such as thinning, species composition adjustment, and understory vegetation control have been shown to affect N inputs and transformation pathways by modifying litter quality, microbial community structure, and N-cycling enzyme activities. However, current findings remain inconsistent, and mechanistic insights are still limited. Future research should focus on disentangling the multi-scale, multifactorial interactions through which forest management regulates soil N cycling. Integrative approaches that link molecular biology with ecosystem-level processes are needed to clarify the interplay among microbial dynamics, enzyme activity, root exudates, and soil physicochemical properties across spatial and temporal scales. In addition, research should explore how forest management affects community structure, litter inputs, soil aggregation, and subsurface biochemical processes to reveal the synergistic regulation of nitrogen cycling by biological, physical, and chemical drivers. Establishing long-term monitoring networks across a range of forest types and climatic regimes, combined with tools such as metagenomics, high-throughput sequencing, and stable isotope tracing, will enable the precise characterisation of key nitrogen-cycling genes and fluxes. In the context of global environmental change, it is also crucial to assess how forest management modulates the coupling of nitrogen, carbon, and water cycles and the resultant ecological feedbacks.

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.

Alternative solution for determining the irrigation water quantity: ETGaugeOriginal Paper

Ismail Tas, Fatih Cem Kuzucu

Soil & Water Res., 2025, 20(4):219-233 | DOI: 10.17221/25/2025-SWR

Measuring the reference evapotranspiration (ET0) is difficult and costly. Some regions can have variable microclimates and these can often be quite far from climate stations. Therefore, it is optimal to use local measurements rather than a regionally calculated ET0. In this respect, one piece of equipment that provides cheap and reliable measurement results is ETGauge equipment. In this study, ET0 values measured with ETGauge equipment were compared with daily and monthly ET0 values calculated by five different commonly used empirical methods (ThornthwaiteAdj, Blaney-Criddle, Penman-Monteith = PM, Jensen-Haise and ASCE standardised Penman-Monteith = ASCE SZ PM). During the measurement period, daily ET0 values measured with ETGauge varied between 0–10 mm/day and the average was determined as 4.5 ± 2.7 mm/day in the study area. In the calculations made with the empirical models, the change in ThornthwaiteAdj is 1.3–6.6 mm/day with an average of 3.8 ± 1.6 mm/day, the change in Blaney-Criddle is 1.8–7.2 mm per day with an average of 5.1 ± 1.4, the change in PM is 1.2–10.5 mm/day with an average of 5.8 ± 2.7 mm/day, the change in Jensen-Haise was 5.8 ± 2.7 mm/day with an average of 5.5 ± 2.7 mm/day, and the change in ASCE SZ PM was calculated as 1.0–10.1 mm/day with an average of 5.4 ± 2.5 mm/day. Considering the obtained results, the ETGauge equipment can be used safely in creating irrigation programmes.

Determination of soil loss on agricultural land based on field measurements in the Czech RepublicOriginal Paper

Jiøí Kapièka, Vìra Kolbabová, Miroslav Bauer, Tomá¹ Dostál, Petr Kavka, Josef Krása, Alla Achasova

Soil & Water Res., 2025, 20(4):253-264 | DOI: 10.17221/22/2025-SWR

The current erosion protection set up in the Czech Republic (CZ) is based on the long-term soil loss due to water erosion using the Universal Soil Loss Equation (USLE). The range of recommended values of tolerable soil loss by water varies among different authors and approaches, depending on the specific area and its parameters. It is, therefore, important to ask the following questions. What is the real range of soil loss by water erosion in CZ. To determine the range of soil loss, a model extrapolation was carried out. The model extrapolation was based on the results from two main experimental measurements. Both from the evaluated volume soil loss of real erosion events and field experiments based on measurements of erosion induced by artificial rainfall. The results of modelled extrapolation of the range of long-term soil loss are in the range 6.9–13.8 t/ha per year.

An evaluation of two counting methods to establish rodent densities in crop fieldsOriginal Paper

Marta Heroldová, Eva Jánová, Jan Zejda, Jan ©ipo¹, Josef Suchomel

Plant Protect. Sci., 2025, 61(4):397-406 | DOI: 10.17221/65/2024-PPS


The common vole (Microtus arvalis) is the main pest in agricultural areas of Central Europe. It is particularly important to monitor its numbers during spring, and if high numbers are detected, some form of pest management should be considered. In the Czech Republic, the number of active burrows is monitored using the burrow index, BI, which allows estimation of the total number of rodents, saves time and is easy to use. We aimed to assess the relationship between the burrow index and the relative abundance of the rodent species examined by snap trapping in crop fields. Bayesian MCMC algorithms with a zero-inflation model were used for this analysis. The positive relationship between BI and vole abundance occurred in the total sample of all fields and in alfalfa, winter wheat and barley crop fields. A positive relationship between BI and the abundance of the wood mouse (Apodemus sylvaticus), the second most common pest in the area, was only confirmed in barley, and this relationship was negative in winter rape. The positive influence of the degree of weed cover on BI was confirmed in the total sample and in winter rape and alfalfa, but weed cover has a negative effect on BI in barley and winter wheat. In contrast, weed cover did not affect the relative abundance of both rodent species in any of the sampled crops. The presence of shrubs and forests around the fields reduced BI in the whole sample, especially in alfalfa. The relative abundance of the voles was not affected by the presence of shrubs and forests around the crop. Still, a positive influence was confirmed for the abundances of mice in the whole sample and alfalfa. BI can be a reliable indicator of vole abundance in crops with high densities, but it is not very accurate at low densities and in crop fields rarely used by voles, such as sunflower and maize. 

Preliminary study: From biofortified maize to cow milk enriched with selenium: An on-farm strategy using selenium-enriched silageOriginal Paper

Luká¹ Praus, Jaromír Ducháèek, Tomá¹ Mr¹tina, Luká¹ Kaplan, Jana Sekaninová, Martina Jankù, Jiøina Száková, Pavel Tlusto¹, Ludìk Stádník

Czech J. Anim. Sci., 2025, 70(10):415-427 | DOI: 10.17221/131/2025-CJAS

Selenium (Se) supplementation is a common practice in dairy nutrition. However, the use of biofortified feedstuffs remains a not fully realized strategy to enhance the Se content of animal derived products. This study explored an on-farm biofortification approach by incorporating Se-enriched maize silage into the total mixed ration (TMR) of dairy cows. Sixty Holstein cows were divided into a control group (CON), receiving a conventional diet with selenite supplementation (0.6 mg/kg Se in TMR), and an experimental group (EXP), in which conventional silage was replaced with high-Se silage (0.9 mg/kg Se in TMR). The trial lasted 22 weeks, including one week of adaptation and four weeks after supplementation, when Se concentrations in milk, Se transfer efficiency, and key milk components critical for the production of Se-enriched dairy products were assessed. The higher Se concentration in the TMR had no adverse effects on milk composition or antioxidant status. Milk Se concentration in the EXP group increased rapidly, reaching 68 µg/l within two weeks, significantly higher (P < 0.005) than in the CON group (27 µg/l). Se transfer efficiency to milk was also higher in the EXP group (13.9%) compared to the CON group (8.8%). The diverse Se species in biofortified silage, confirmed through the speciation analysis, may have contributed to these outcomes. However, the gradual decline in milk Se after the initial peak warrants further investigation into physiological factors or changes in silage Se speciation during storage.

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.

Lactoferrin – The protective component of goat colostrum and milkOriginal Paper

Pavlína Navrátilová, Klára Bartáková, Jan Pospí¹il, Lenka Vorlová, Tomá¹ Kopec, Oto Hanu¹, Hana Nejeschlebová, Eva Samková, Josef Kuèera (ORCID: 0000-0002-8751

Czech J. Anim. Sci., 2025, 70(12):538-553 | DOI: 10.17221/123/2025-CJAS


Lactoferrin (LF) is an important bioactive component of colostrum, is critical for the development of immunity in the newborns, and it is an important component of the mammary gland defence system. LF is also an important biomolecule in terms of promoting and restoring the human health. The aim of our study was to monitor the dynamics of changes in lactoferrin concentration in goat milk at varying stages of lactation and its correlation with selected components and physicochemical parameters. Colostrum (n = 24) and milk (n = 120) samples were obtained from 12 goats by hand milking. Lactoferrin was determined using reversed-phase high-performance liquid chromatography with an ion-pairing reagent equipped with a Photodiode Array Detector. The LF concentration in colostrum ranged from 206 mg/l to 1 228 mg/l, and showed a statistically significant decrease in concentration (P < 0.05) over the colostral period. Significant correlation coefficients (P < 0.001) were found between crude protein and LF (r = 0.896), lactose and LF (r = –0.754), as well as between non-fat solids and LF (r = 0.853). The LF content in milk ranged within a relatively wide range of 94 mg/l to 1 115 mg/l although the values were highly variable (vx = 57.0%). Significant correlations were found between fat content and LF in milk (r = 0.429, P < 0.001), crude protein and LF (r = 0.376), non-fat solids and LF (r = 0.361), somatic cell count (SCC) and LF (r = 0.330), as well as log SCC and LF (r = 0.348, P < 0.01).

Evaluation of gamma-irradiated Pisum sativum germplasm for agronomic traits and tolerance to Didymella pinodesOriginal Paper

Efi Sarri, Anastasios Katsileros, Sofia Migardou, Panagiotis Viliotis, Ioannis Sidiropoulos, Dimitris Sifnaios, Pavlos Diamantis, Nikolaos Sklavounos, Eleni M. Abraham, Penelope J. Bebeli, Nasya Tomlekova, Dimosthenis Kizis (

Czech J. Genet. Plant Breed., 2026, 62(1):1-13 | DOI: 10.17221/84/2025-CJGPB

Ascochyta blight, caused by a complex of pathogenic fungi including Didymella pinodes, Ascochyta pisi, and Phoma pinodella, is a major disease of field pea (Pisum sativum), causing severe losses through lesions on leaves, stems, and pods. Mutation breeding using gamma irradiation is a non-GMO strategy to induce genetic variation and accelerate the development of improved genotypes. In this study, the M2 generation of the forage pea cultivar Dodoni (Pisum sativum L. var. arvense), derived from M0 seeds irradiated with 100 Gy, was evaluated for tolerance to D. pinodes (CBS 251.47) using a detached-leaf assay under controlled greenhouse conditions. Disease progression was quantified via image-based analysis on the 3rd and 5th days post-infection, calculating diseased area and disease severity index. Extensive phenotypic evaluation was also conducted on 16 families in the greenhouse and 100 families under field conditions, using an augmented incomplete block design. Screening revealed several M2 families with significantly improved tolerance compared to non-irradiated controls. Among these, some individuals combined enhanced resistance with improved yield-related traits, such as higher pod number and biomass, while others exhibited reduced agronomic performance. These findings highlight the phenotypic diversity induced by gamma irradiation and demonstrate the potential to generate dual-purpose pea genotypes with both disease resistance and enhanced productivity, providing valuable material for future breeding of resilient cultivars.

Effects of silymarin supplementation during late gestation on reproductive performance, haematological parameters, antioxidant status, and gut microbiota in sowsOriginal Paper

Guanglei Cong, Chunxue Liu, Shuangshuang Xia, Junbo Li, Ifen Hung

Czech J. Anim. Sci., 2025, 70(11):480-488

This study aimed to evaluate the effects of silymarin supplementation during late gestation on reproductive performance, haematological parameters, antioxidant capacity, and gut microbiota composition in sows. Twenty parity-4 crossbred sows (Landrace × Yorkshire) were enrolled and randomly allocated in parity blocks to either a control group (CG; n = 10, basal diet) or a silymarin-supplemented group (SIL; n = 10, basal diet + 200 mg/kg silymarin). The experimental period extended from day 85 of gestation to the completion of farrowing. The results demonstrated that dietary silymarin significantly reduced the number of stillbirths (P < 0.05), without exerting a significant effect on the total number and proportion of live-born piglets (P > 0.05). No notable differences were observed in haematological parameters between the two groups (P > 0.05). However, catalase (CAT) activity and total antioxidant capacity (T-AOC) were significantly elevated in the silymarin group (P < 0.05), and superoxide dismutase (SOD) showed a tendency to increase (P = 0.078). High-throughput 16S rRNA sequencing revealed 1 671 unique feature sequences in the silymarin group and 1 073 in the control group, with 1 600 sequences shared between the two groups. A trend towards increased dominance was observed in the silymarin group (P = 0.082), while both the Shannon and Simpson indices tended to decline (P = 0.087; P = 0.082), suggesting a possible reduction in microbial diversity. Principal coordinate analysis (PCoA) of β-diversity revealed significant structural differences in gut microbiota between the two groups. SIMPER analysis identified Terrisporobacter as the principal genus contributing to these differences. In conclusion, silymarin supplementation during late gestation may enhance reproductive outcomes in sows, potentially through modulation of gut microbial composition and enhancement of systemic antioxidant status.

Evaluation of differences in the quality of pork meat from Czech pig breeds based on nutritional value, energy value and amino acid scoreOriginal Paper

Pavel Nevrkla, Eva Weisbauerová, Svitlana Karvan, Jan Seèkáø, Zdenìk Hada¹, Miroslav Rozkot, Drahomíra Ètvrtlíková Knitlová

Czech J. Food Sci., 2025, 43(6):411-418 | DOI: 10.17221/61/2025-CJFS

The nutritional quality of meat from pigs of the indigenous Prestice Black-Pied pig (PB) and the three-breed commercial hybrid of Large White × Landrace × Large Whitesireline (CH) was compared using these indicators: content of intramuscular fat, protein, saturated fatty acids (SFA) and essential amino acids (EAAs). The protein content and energy value of PB and CH meat were 20.12% and 22.56%, and 426.77 kJ·(100 g)–1 and 443.01 kJ·(100 g)–1, respectively. The lowest fat content (1.33%) and SFA content (0.33%) were found in the meat of commercial hybrid pigs. Leucine and lysine were the most predominant EAAs detected. Valine and leucine are the limiting AAs in studied meat as a protein source for children at 0.5–2 years of age. The compositions of AAs in PB and CH pork fully meet the protein needs of children over 2 years of age and adults. The calculated amount of pork meat provides the required daily intake of AAs and ensures 5–8% energy for children and 8–11% energy for adults at moderate physical activity. In general, the meat of Prestice Black-Pied pig and of the commercial hybrid showed the high nutritional value and quality and it can be recommended for consumption in the diet by children and adults.

Short- and long-term effects of elevated CO2 on the growth and nitrogen content of Panax japonicusOriginal Paper

Xiao Wang, E Liang, Deyan Li, Xiaohui Song

Hort. Sci. (Prague), 2025, 52(4):324-332 | DOI: 10.17221/110/2024-HORTSCI


Panax japonicus (T. Nees) C.A. Mey is a rare plant that is used in Chinese herbal medicine. Two-year-old Panax japonicus seedlings were grown in open-top chambers under ambient CO2 (aCO2), moderately (e1CO2: 550 ± 15 μmol/mol) or substantially (e2CO2: 750 ± 15 μmol/mol) elevated CO2 to study their effects on plant growth and nitrogen (N) content. After 27 days, the net photosynthetic rate (Pn) of e2CO2-treated seedlings was significantly higher (20.09%) than that of seedlings grown under aCO2. However, by day 51, the Pn of e1CO2- and e2CO2-treated seedlings was 12.87% higher and 9.57% lower, respectively, than that of seedlings grown under aCO2. On day 27, chlorophyll + b content, Rubisco activity, soluble protein and starch content of e1CO2- and e2CO2-treated seedlings showed no significant change and significant increase compared to aCO2-treated. By contrast, at 51 days, chlorophyll content, Rubisco activity, starch and N content of P. japonicus was significantly increased by moderately eCO2 condition but was significantly decreased by substantially eCO2 condition. The results suggest that exposure to moderately eCO2 was beneficial for P. japonicus growth, whereas under substantially eCO2, growth were promoted in short-term but inhibited in long-term. Owing to the temporal effect of eCO2 on P. japonicus growth, there was no significant correlation between N content and Pn of P. japonicus under eCO2.

Knowing your enemy before taking the field: A screening of salt and UV-B treatments to boost the biochemical defences of tomato (Solanum lycopersicum L., ‘Moneymaker’ cultivar) plantlets in controlled conditionsOriginal Paper

Maria Calogera Sciampagna, Alessia Mannucci, Salvatore Limpido, Annamaria Ranieri, Antonella Castagna, Marco Santin

Hort. Sci. (Prague), 2025, 52(4):353-362 | DOI: 10.17221/109/2023-HORTSCI


Plants are commonly exposed to different abiotic stress factors that can threaten their growth and development. Abiotic treatments might be used as a tool to increase the tolerance of plants grown in controlled environments before being transplanted in open fields, but this technique needs a careful choice of the stressor dose. We screened several UV-B radiation doses (1 h, 3 h, 6 h and 8 h per day) and NaCl doses (75 mM, 150 mM, 300 mM), separately, to be employed as preconditioning treatments of tomato plantlets (Solanum lycopersicum L., ‘Moneymaker’ cultivar) cultivated in a controlled environment. Biometric parameters and antioxidant compounds were quantified in leaves and roots. Our results showed that the application of mild abiotic treatments such as 75 mM NaCl for 14 days or 8 h/day UV-B (18.43 kJ/m2) for 7 days to hydroponically grown tomato plantlets can increase the content of foliar total phenolics and flavonoids without inducing strong impairments in the plant growth and development. Interestingly, this work provides evidence that the UV-B radiation, although perceived only by the above-ground organs of the plants, also induces some morphological and biochemical changes in the root system.

Exploring the impact of potassium fertiliser rate and split ratio on rice yield and quality in China: a meta-analysisOriginal Paper

Lijuan Deng, Duoji Wu, Weiqi Yuan, Zongqiang Wei, Yanlan Huang, Zhihua Hu, Jianfu Wu

Plant Soil Environ., 2025, 71(12):891-904 | DOI: 10.17221/315/2025-PSE

Potassium (K) is crucial for rice yield and quality, but continuous yield increase reduces protein content, challenging the balance between high yield and quality. This study analysed 3 178 case studies (1994–2024) on K management impacts on rice yield, grain protein, and amylose content, evaluating effects of K fertiliser rates, base-topdressing ratios, planting regions, and soil properties. The results showed that K application significantly increased rice yield, protein content and amylose content by 11.6, 2.0 and 1.0%, respectively. Importantly, we identified targeted K fertilisation strategies tailored to different quality goals: optimising for eating quality, nutritional quality, or synergistic improvement of yield and comprehensive quality. This study provides a scientific basis for precision K management to help growers balance rice yield with specific quality needs.

Deconstruction of China's agricultural bioeconomy policies in the context of sustainable systems transition – Based on policy texts analysisOriginal Paper

Xiuxiang Li, Yanhan Hu

Agric. Econ. - Czech, 2025, 71(12):664-679 | DOI: 10.17221/423/2024-AGRICECON

Countries are calling for a sustainable transition of agri-food systems due to the volatility of food security in the context of climate change, and the agricultural bioeconomy may be a more dependable solution. By capturing, coding, and displaying word clouds of Chinese agricultural bioeconomy policy texts, this study deconstructs the development framework of China's agricultural bioeconomy policies based on the agricultural biosystem dimension, the policy instrument dimension, and the comprehensive dimension. It concludes that there is a clear trend of sustainable transformation and cross-sectoral linkage in China's agricultural bioeconomy policies. Overall, China's agricultural bioeconomy policies have the following comprehensive features: first, the policy is deeply integrated, considering both economic development and environmental friendliness; second, the policy is safety-oriented, taking into account competitiveness and strategy; and third, the policy is innovation-driven, taking into account fundamentality and foresight. Efforts should be made in the future to enhance the competitiveness of the agricultural bioeconomy within the framework of an all-encompassing approach to food and to help China's agricultural bioeconomy on the road to sustainable transition by improving fiscal and tax support, advocating the use of financial instruments, creating an alliance for the agricultural bioeconomy, and promoting international trade exchanges and cooperation.

Impact of prebiotic supplementation on the zootechnical and health performance in broiler chickensOriginal Paper

M Mansouri, N Hammami, A Yahia, K Saidani, Z Boumahdi, D Tarzaali, N Mimoune

Vet Med - Czech, 2025, 70(12):442-451 | DOI: 10.17221/37/2025-VETMED


This study aimed to evaluate the effectiveness of mannan-oligosaccharides (MOSs) in broiler chicken feed throughout the complete rearing cycle, focusing on zootechnical performance and lactic acid bacteria. Over a period of 49 days, a total of one thousand and eighty (1 080) day-old ISA 15 chicks were divided into two (control and experimental) groups of 540 subjects each (9 replicates of 60 chicks per treatment). They were fed the same basic diet, but only the experimental group received a yeast cell wall extract-based prebiotic (AGRIMOS®, France), administered continuously at a dose of 2 g/kg throughout the different rearing phases. Under our local conditions, the prebiotic supplementation resulted in a significant increase in body weight gain (P < 0.01), reaching 1 559.82 ± 41.47 g during the growth phase and 913.20 ± 72.58 g during the finishing phase. Moreover, a significant reduction in the feed conversion ratio was observed throughout the rearing cycle (P < 0.05). Across all segments of the analysed intestinal tract (duodenum, ileum, and caecum), the data showed that chickens supplemented with the prebiotic had a significantly higher number of lactic acid bacteria than the control group at the start, growth, and finishing phases (P < 0.01). Our findings demonstrated a clear impact of the prebiotic on the feed utilisation under our rearing conditions, which required further studies to elucidate the underlying mechanisms of action.

Dairy bull sperm subpopulation behaviour in frozen-thawed semen across breed, temperature, and thawing timeOriginal Paper

F Sevilla, I Araya-Zuniga, JM Solis, C Corcini, P Cervantes-Acosta, A Hernandez-Beltran, R Molina-Montero, D Pichardo-Matamoros, A Valverde (email: anvalverde@te

Vet Med - Czech, 2026, 71(1):1-9 | DOI: 10.17221/56/2025-VETMED

Optimising dairy cattle reproduction with assisted reproductive technologies, such as artificial insemination, requires standardised semen handling and analysis. This study evaluated the kinematic structure of the spermatozoan subpopulation in frozen-thawed Holstein and Jersey bull semen doses under different thawing protocols. We used frozen semen doses taken from four bulls of each breed. Nine semen doses were collected from each animal, for a total of 72 cryopreserved doses. Straw thawing was performed at three temperatures (35 °C, 37 °C, and 40 °C) and three times (30 s, 40 s, and 45 s). Sperm kinematic patterns were evaluated using a CASA-mot system (ISAS®v1). Sperm kinematic variables for each breed, temperature, and thawing time identified four subpopulations. The analysis revealed an effect of breed and semen thawing protocols (P < 0.05) on sperm subpopulation distribution, sperm movement, and swimming patterns. Subpopulation analyses based on semen assessment are needed to further interpret the relevance and effect on fertility.

Evaluation of hydroalcoholic extract of Licorice (Glycyrrhiza glabra L.) root on treatment of experimentally induced peritonitis in New Zealand male rabbitsOriginal Paper

M Ahmadi, I Nowrouzian, M Norbakhsh, M Yadegari, M Jafarian Dehkordi

Vet Med - Czech, 2025, 70(12):432-441 | DOI: 10.17221/31/2025-VETMED

This experimental study evaluated the therapeutic potential of a liquorice-derived hydroalcoholic extract in managing experimentally induced peritonitis in New Zealand rabbits. The animals were randomly divided into six groups (n = 6): one control group, one negative control group (infected but untreated), three treatment groups that received the liquorice-derived extract at 0.5, 1, and 2 g/kg, and one positive control group treated with enrofloxacin. The confirmation of peritoneal infection relied on histopathological and radiographic tests. The effect of the liquorice extract on the peritoneal infection was evaluated using biochemical, haematological, and ultrasound analyses across the groups. The ultrasound examination, along with the haematological and biochemical evaluation on the 20th day after induction, showed significant differences between the groups. The results demonstrated that higher doses of 1 g/kg and 2 g/kg were more effective than the lower dose of 0.5 g/kg. The haematological and biochemical analyses revealed significant differences in several variables (including WBC, neutrophils, fibrinogen, and liver enzymes) between the treated and control groups, with the most pronounced improvements observed in the group receiving 2 g/kg of liquorice extract, suggesting a dose-dependent therapeutic effect. The administration of a hydroalcoholic extract of liquorice at different doses, along with the standard treatment with enrofloxacin, affected various haematological and biochemical variables in the context of peritoneal infection management. In conclusion, the effectiveness of the liquorice-derived extract is dose-dependent and could be used as an effective therapeutic agent in peritoneal infections in New Zealand rabbits. These findings showed that the liquorice-derived extract effectively improves the local inflammatory and structural changes associated with peritoneal infection without adversely affecting systemic biochemical homeostasis.

Sustainability performance evaluation of tropical fruit supply chain in Indonesia using the best-worst methodOriginal Paper

Anisa Aprilia, Syafrial, Djoko Koestiono, Fitria Dina Riana, Silvana Maulidah

Agric. Econ. - Czech, 2026, 72(2):120-134 | DOI: 10.17221/46/2025-AGRICECON

Studies on the sustainability assessment of supply chain performance in tropical fruit still have limitations, whereas similar studies are more widespread in the manufacturing sector. This study aims to assess the sustainability performance of the tropical fruit supply chain in Indonesia. Performance evaluations were conducted for three producer organisations of tropical fruit with members ranging from 70 to 200 people in Banyuwangi Regency, the largest production centre in Indonesia. This study proposes a new approach, the best-worst method (BWM), to prioritise supply chain performance criteria derived from the SCOR (Supply Chain Operations Reference) model based on assessments by experts managing producer organisations. In the SCOR model, environmental and social criteria are added, resulting in seven criteria for evaluating supply chain performance, which include reliability, responsiveness, agility, cost, asset management, GreenSCOR, and social. Thus, the integration of BWM and SCOR can ensure higher consistency and reliability than traditional methods for assessing sustainable supply chain performance. The results revealed that reliability is the most important criterion for supply chain performance, which shows how important the maintenance of product quality is. In contrast, agility received the lowest score, indicating that there is a need to improve performance with respect to responding to high demand, managing safety stocks, and overtime in the shipping process. Moreover, this study gives a glimpse into the importance of evaluating sustainability performance for the tropical fruit sector, having perishable characteristics and great contributions to rural development. Hence, this study provides a solid practical guide for decision-makers in assessing the sustainable supply chain of tropical fruits in Indonesia.

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