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Results 241 to 270 of 4551:

The effect of cattle breed on the quality of intramuscular fatOriginal Paper

Natalie Klessy, Eva Straková

Czech J. Anim. Sci., 2026, 71(4):170-179 | DOI: 10.17221/29/2026-CJAS


The aim of the study was to verify whether differences in intramuscular fat quality, evaluation based on fatty acid profile and ratios, occur between cattle genotypes – the combined performance cattle breed Czech Fleckvieh and the beef breed Aberdeen Angus – under identical rearing conditions (same pasture location and nutritional management) with extensive grazing. The results of observation show the difference in the quality of intramuscular fat of bulls with combined performance and bulls with meat performance in extensive pastoral farming. Breed differences were reflected by a statistically significantly higher mean intramuscular fat (P ≤ 0.05) in the beef cattle breed (149 ± 60.1 g/kg dry matter) compared to the combined performance breed (120 ± 51.8 g/kg dry matter). A higher saturated fatty acid (SFA) value of 53.4 ± 22.2 g/kg dry matter was observed in the beef cattle breed compared to SFA 40.8 ± 18.9 g/kg dry matter (P ≤ 0.05) in the combined performance cattle breed; a higher monounsaturated fatty acid (MUFA) value of 43.8 ± 26.3 g/kg dry matter compared to a MUFA value of 42.3 ± 20.8 g/kg dry matter (P > 0.05); and a higher value of polyunsaturated fatty acids n-3 (PUFA n-3) 0.76 ± 0.33 g/kg dry matter (P ≤ 0.05) compared to PUFA n-3 0.48 ± 0.21 g/kg dry matter in combined performance cattle breed. A higher value of polyunsaturated fatty acids n-6 (PUFA n-6) 3.66 ± 1.39 g/kg dry matter was found in the combined performance cattle breed compared to the meat cattle breed with PUFA n-6 3.54 ± 0.96 g/kg dry matter (P > 0.05). A more favourable n-6/n-3 PUFA ratio was observed in the Aberdeen Angus (P ≤ 0.05). The results suggest that the different genotypes of the bull breeds studied, reared on extensively used pasture, may influence the amount of intramuscular fat and its quality.

Ecological and human health risk assessment of tungsten and other heavy metal(loid)s in farmland around a typical tungsten mining area in southern Jiangxi, ChinaOriginal Paper

Qi Li, Li Tian, Xiaojun Zheng, Weijiang Chen, Buchan Zhou, Ming Chen

Plant Soil Environ., 2024, 70(4):229-244 | DOI: 10.17221/344/2023-PSE

The ecological and human health risks of heavy metal(loid)s (HMs) in soils around tungsten (W) mining sites have often disregarded the presence of W. In this study, we aimed to investigate the concentrations of 10 HMs (including W and other accompanying elements) in 18 agricultural soil samples obtained around a W mining site in southern Jiangxi, China. Furthermore, we determined the contamination status, source identification, and ecological and health risks of HMs in soils. Our findings revealed that HMs were extensively accumulated in soils within the study area, with the highest mean concentrations of W found. W concentrations were above background values at all sites. Multivariate analysis revealed that W mining activities, including extracting and transporting W ore, were the primary source of HMs in the soil (61.40%). The ecological risk assessment revealed that the potential ecological risk across the survey area exhibited a high risk, and the cadmium (Cd) and W should be prioritised as control pollutants for soils around the W mine site. The human health risk assessment displayed that 73.43% of children with an unacceptable non-carcinogenic risk, and W contributed the most to the overall non-carcinogenic risk (42.32%), followed by Cd and arsenic (As). In addition, 22.03% of children and 13.4% of adults were under a significant carcinogenic risk. Overall, our findings emphasise the importance of considering element W in future studies investigating the contamination of HMs around W mining areas. As such, we calculated a safe limit value for element W in soil (141.01 mg/kg) to facilitate the conservation and development of soils in W mining areas in China. Our study provides valuable information for pollution prevention and soil contamination risk mitigation in W mining areas.

Quality assessment of elderberry (Sambucus nigra L.) jamsOriginal Paper

Oana-Viorela Nistor, Doina-Georgeta Andronoiu, Liliana Ceclu

Czech J. Food Sci., 2025, 43(1):48-58 | DOI: 10.17221/111/2024-CJFS


Elderberries belong to the spontaneous flora of Sambucus nigra L., being considered wild fruits and even improper to be consumed. Dark violet-black and slightly glossy elderberry fruits are rich in bioactive compounds such as agglutinin, total anthocyanins and polyphenols. The importance of heating is claimed by the seasonal and toxic specific elderberry fruits. Moreover, the need to transform the fruits from not suitable for consumption into functional products and to prolong the shelf life of the product should be highlighted. Based on these affirmations, the aim of the study was to preserve the elderberries as jam with or without refined sugar. Phytochemical, textural, colour and sensory analyses were used to characterize three samples of jams (one without sugar, one with refined sugar and one with stevia sugar). The samples with stevia sweetener addition showed the highest values of anthocyanins (1.43 ± 0.16 mg·g–1 dry matter, DM) among the processed samples; as for the raw fruits, the anthocyanin content showed a decrease. The antioxidant activity determined by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay revealed similar values between all the analysed elderberry jams. In accordance with the other results, the most appreciated sample by the sensory evaluation was the sample with stevia sweetener. As a conclusion, the total sugar substitution could contribute to a more valuable matrix than the original one. The novelty of the study consists in the use of such popular spontaneous flora of Sambucus nigra L. berries and in a change of the inedible character of the raw fruits into edible functional foods with a prolonged shelf-life.

Using thermal time to predict the timing of flight activity in Noctuidae (Lepidoptera) species: Calculation and verification of forecast methodsOriginal Paper

Alois Honìk, Zdenka Martinková, Ivo Novák, Terezia Jauschová, Lenka Sarva¹ová, Miroslav Saniga, Milada Holecová, Ján Kulfan, Peter Zach

Plant Protect. Sci., 2025, 61(4):366-377 | DOI: 10.17221/150/2024-PPS


From 1967 to 1995, the flight activity of 25 monovoltine species of moths (Noctuidae, Lepidoptera) was monitored via a light trap located in Prague (50.09 N, 14.30 E). For each species, the day when half of the individuals were caught (peak of flight activity, PFA) was specified each year. This study addresses a method of predicting the calendar date of the PFA via thermal time. We determined a base temperature of +6 °C, at which the differences between the predicted and actual dates of the PFA were minimal. For each species and each year, the sum of the degree days exceeding the base temperature from January 1 to the date of the PFA (SumT) was determined, and the average SumT throughout the study was calculated. Each year, the predicted date of the PFA is the date when the average SumT was achieved. Sixty-five percent of the predicted PFA dates fell within ±5 days of the actual date of the PFA. Shifts in the magnitude and direction of the difference between the actual and predicted PFAs affecting concurrently all species were caused by the thermal conditions of the year.

Antioxidant and cytokine modulation in PCOS rats protected with probiotics, myo-inositol, and herbal extractsOriginal Paper

AA Zaki, NM Alharbi, TI Almundarij, SM Albarrak

Vet Med - Czech, 2025, 70(6):203-217 | DOI: 10.17221/116/2024-VETMED

This study investigated the pathophysiology of polycystic ovarian syndrome (PCOS) and evaluated the protective effects of various treatments in immature female Wistar rats (N = 48). The rats were divided into 6 groups: Olive oil injection (negative control, G1); testosterone propionate (TP)-induced PCOS (G2); probiotic + TP (G3); myo-inositol (myo-ins) + TP (G4); U. dioica extract + TP (G5); W. somnifera extract + TP (G6). The body weight, body weight gain, and percentage gain were measured weekly and then transformed using the base-10 logarithm (log10). TNF-α, IL-4, IL-10, and IL-17 were weekly measured using ELISA kits. Glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), and catalase (CAT) were analysed in the serum and liver extracts. The W. somnifera significantly reduced the TNF-α levels (P < 0.01). The probiotic and myo-ins significantly elevated the IL-10 levels (P < 0.01). Both plant extracts moderately restored the IL-10 levels. The probiotic and U. dioica administration significantly reduced the IL-17 levels (P < 0.01). The W. somnifera administration also decreased the IL-17 levels, though the effect was less pronounced than that of U. dioica. The probiotic, myo-ins, and W. somnifera groups exhibited enhanced CAT activity (P < 0.05). W. somnifera showed significant increases in the SOD and GSH-Px activities (P < 0.01), showing the most dramatic improvement. The use of these four treatments as a monotherapy in this study resulted in different changes. Therefore, further investigation is necessary to evaluate the protective effects of combining duos or trios of these treatments against this disease.

Evaluation of cadmium accumulation in pink oyster mushrooms cultivated on the cadmium contaminated substrates and health risk analysisOriginal Paper

Senad Murtiæ, Æerima Zahiroviæ Sinanoviæ, Josip Jurkoviæ, Mirza Tvica, Adnan Had¾iæ, D¾eneta Fazliæ, Amina ©erbo

Czech J. Food Sci., 2025, 43(4):283-290 | DOI: 10.17221/127/2024-CJFS

Pink oyster mushrooms are rich in protein, dietary fibre, vitamins and minerals, making them a great addition to any diet. However, pink oyster mushrooms have the ability to accumulate high concentrations of heavy metals, some of which, such as cadmium, can cause adverse effects on human health. The aim of this study was to evaluate the ability of pink oyster mushrooms to absorb Cd from substrates contaminated with Cd and to assess the human health risks associated with the consumption of these mushrooms. An experiment was carried out in a completely randomised design and included four treatments (four Cd contamination levels i.e. 0, 20, 50 and 100 mg·kg–1) with three replications. Cd accumulation in mushrooms increased with increasing Cd content in substrates and ranged from 1.8 mg·kg–1 (non-contaminated substrate) to 23.8 mg·kg–1 of dry mass (substrate contaminated with 100 mg·kg–1 of Cd). On the other hand, total mushroom yield showed a decreasing trend with increasing Cd levels in substrates. The results of the present study suggest that pink oyster mushrooms possess the capability to absorb Cd from the substrate in which they grow. The obtained results for target hazard quotient (THQ) of Cd point to the conclusion that the consumption of mushrooms cultivated on the Cd-contaminated substrates could produce negative health effects.

Combined application of biochar and phosphorus influenced maize production and soil properties in the Yellow River Delta: a comparison between contrasting weather conditionsOriginal Paper

Xiaoqi Tang, Chunming Jiang, Hongjie Li, Jing Tian, Dawei Li, Xuan Zhang, Xiuli Ge, Xia Liu, Wenjun Gao, Guoli Liu, Wenjuan Li

Plant Soil Environ., 2025, 71(8):581-594 | DOI: 10.17221/268/2025-PSE

The Yellow River Delta, an important area of reserved arable land resources in China, is faced with the problem of crop productivity being typically limited by low soil quality. Developing techniques that raised crop yield without environmental damage was critically needed. To date, the knowledge about the joint impacts of biochar (C) and phosphorus (P) addition on soil properties and maize production under different weather conditions in this area is seriously lacking. Consequently, a full factorial field experiment including three biochar intensities (0 (C0), 5 000 (C1), and 10 000 (C2) kg/ha), three phosphorus fertilisation levels (0 (P0), 60 (P1), and 120 (P2) kg P/ha), and their combinations was conducted in Binzhou, Shandong province of China from 2021 to 2022. Compared to 2022, the maize yield was dramatically reduced in 2021 (with a 35% mean decrease) due to excessive rainfall in the maize reproductive growth stage (P < 0.01). C addition caused greater proportions and contributions of dry matter and nutrient remobilisation from pre-anthesis vegetation organs to grain. Subsequently, maize yield was much more promoted in 2021 (23%) than in 2022 (5%) by adding C, in which the discrepancies between C1 and C2 were relatively small and insignificant. On the other hand, these corresponding effects of P and C × P were relatively modest. From the soil perspective, soil physical (hydraulic conductivity (Ks) and bulk density) and chemical properties (soil organic carbon, total N, and soil available N) were significantly improved by C addition (P < 0.01). More importantly, we detected negative interactions of C × P on soil available P and phosphorus activation coefficient (P < 0.01), as soil available P was lowered with more input of C and P together (particularly under P2 series). The two-year outcomes suggested that C addition could enhance maize growth and ensure crop yield stability. Still, the combined incorporation of this kind of C and P (especially for C2P2) was not recommended in the saline-alkali land. The present study delivered useful insight into the rational utilisation of C and P fertilisers in the Yellow River Delta.

Optimisation of the temperature and drying time of kaffir lime leaves (Citrus hystrix DC.) using Response Surface MethodologyOriginal Paper

Asri Widyasanti, Sintia Nabila Putri, Rahmat Budiarto, Nor Nadiah Abdul Karim Shah

Res. Agr. Eng., 2025, 71(3):155-162 | DOI: 10.17221/94/2024-RAE


This study optimised the drying process of kaffir lime leaves (Citrus hystrix DC.) to extend the shelf life and preserve the quality by reducing the moisture content. A Central Composite Design (CCD) under the Response Surface Methodology (RSM) framework was employed, with the temperature (55 °C, 60 °C, 65 °C) and drying time (5, 5.5, 6 h) as the variables. Experiments were conducted with a mechanical food dehydrator, and the parameters evaluated included the water content and drying yields. The optimal condition was identified as 60 °C for 5 h, resulting in a drying yield of 33.3% and a final moisture content of 7.153 (% w.b.), which meets the quality standards for dried products. The novelty of this research lies in the application of RSM to determine effective drying conditions for kaffir lime leaves, which are not widely used, but have good economic potential. The research proved that drying with the right conditions can greatly improve the quality and stability of dried kaffir lime leaves.

Seasonal dynamics and nutritional risk factors of gastric ulcers in fattening pigs: Results from a one-year field study in SlovakiaOriginal Paper

Z Krepelkova, K Bardova, F Zigo, A Csorgo, J Novotny

Vet Med - Czech, 2025, 70(11):393-400 | DOI: 10.17221/44/2025-VETMED


This study aimed to comprehensively evaluate the prevalence, severity, and risk factors associated with gastric lesions in fattening pigs across all four seasons in Slovakia. A total of 1 944 porcine stomachs were examined post-mortem at commercial slaughterhouses, focusing on the non-glandular region (pars oesophagea). A macroscopic evaluation was conducted using a standardised scoring system (0–3), in which gastric lesions, including parakeratosis, erosions, and ulcerations, were observed in 48% of the examined stomachs. Significant seasonal variation was detected, with the highest lesion prevalence recorded during the summer months, likely due to heat stress and reduced feed intake, and the lowest incidence of pathological changes seen in autumn. The gastric fullness had a notable impact: empty and liquid-filled stomachs were more frequently associated with severe mucosal damage, while full stomachs exhibited a protective effect. Furthermore, the feeding regimen played a crucial role: the pigs receiving wet feed had a significantly lower prevalence of gastric lesions than those on a dry feeding regimen. These results underscore the multifactorial nature of gastric ulceration in pigs and highlight the importance of nutritional and environmental management strategies in intensive production systems.

Modelling the circular bioeconomy in the palm oil industry: Emerging approaches to address cattle feed shortages in IndonesiaOriginal Paper

Atien Priyanti, Priyono, I Gusti Ayu Putu Mahendri, Dwi Yulistiani, Hotmatua Daulay, Yuhendra, Nasir Rofiq, Astu Unadi, Uning Budiharti, Adji Parikesit, Arsyadi Ali (email: ali_arsyadi

Agric. Econ. - Czech, 2025, 71(12):647-663 | DOI: 10.17221/231/2024-AGRICECON

Indonesia is presently ranked as the first crude palm oil producer in the world. However, the palm oil industry faces significant challenges, including extensive criticism related to environmental degradation and social impacts. The circular bioeconomy concept emphasises sustainable production and consumption through the repurposing, recycling, and regeneration of resources to address these challenges. Integrating palm and cattle farming represents a promising approach to enhancing resource efficiency and sustainability in agricultural systems. This study employs a system dynamics analysis to model the circular bioeconomy in the palm oil industry, with a specific focus on addressing cattle feed shortages. The results demonstrate that utilising oil palm biomass can yield a total of 21 204.52 tonnes of feed and generate a yearly revenue of USD 317 020.14. Key findings indicate that integrating palm by-products into cattle feed not only addresses feed shortages but also reduces waste and enhances overall farm productivity. The implications of this study suggest that adopting circular bioeconomy practices in the palm oil industry can promote more resilient and sustainable agricultural practices.

Editorial for the Thematic Issue on Fish Health and Disease ManagementEditorial

M Faldyna

Vet Med - Czech, 2026, 71(4)

Occurrence of Norovirus genogroup II in leafy greens in the region of Marrakech using a molecular methodOriginal Paper

Salma Berrouch, Nouhaila El Fellaki, Abdelkader Biary, Hibatallah Lachkar, Houda Rafi, Halima Rouane, Simeon Goïta, Jamal Eddine Hafid

Czech J. Food Sci., 2026, 44(2):123-131 | DOI: 10.17221/101/2025-CJFS

Leafy greens are important vectors for enteric viruses, including human noroviruses (HuNoV), which are a leading cause of foodborne disease. These viruses can contaminate the agricultural environment through untreated wastewater or direct contamination. While studies on HuNoV in vegetables have been conducted, few have focused on Morocco. This study aimed to detect HuNoV in leafy greens collected in the region of Marrakech region over a fifteen-week period (March–June 2023). For this purpose, 112 samples (coriander, lettuce and parsley) were collected and analysed using the ISO 15216-2:2019 method with minor modifications, after validation. The method involved eluting viruses using an alkaline buffer, concentrating them through polyethylene glycol precipitation, and detecting viral RNA via real-time RT-PCR. The applied method yielded variable recovery rates among the tested matrices, with coriander showing the highest recovery (1.5%), followed by lettuce (1.2%) and parsley (0.6%), confirming a significant matrix-dependent variation in HuNoV recovery (ANOVA, P < 0.001). This method enabled the assessment of leafy green contamination, which was found to be 0.89% (1/112). This study underscores the need to enhance detection methods to better assess the risks associated to noroviruses in leafy greens, with implications for human health.

Variations in bog bilberry fruit characteristics along an altitudinal gradient on Changbai Mountain, ChinaOriginal Paper

Jinhang Li, Qige Qi, Qichang Zhang, Meng Wang, Yichen Liu, Xinyu Sun, Yuting Mu, Chunlei Yang

Hort. Sci. (Prague), 2025, 52(2):111-119 | DOI: 10.17221/147/2023-HORTSCI

To better understand the influence of altitude on fruit characteristics of bog bilberry (Vaccinium uliginosum L.), here we investigated the adaptation of its fruit morphological and chemical traits to the environment at six growing positions along an altitudinal gradient (706, 957, 1 226, 1 315, 2 000 and 2 190 m) on the northern slope of Changbai Mountain, China. Fruit longitudinal diameter, fruit transverse diameter and fruit weight decreased significantly with increasing altitude. Vitamin B1 content reached its highest at 2 190 m, while both vitamin B2 and vitamin C contents reached their highest and lowest at 1 226 and 706 m, respectively. Anthocyanin content and DPPH (1,1-diphenyl-2-picrylhydrazyl) free radical scavenging ability initially decreased and then improved with increasing altitude. We observed a highly significant (P < 0.001) negative correlation between external fruit quality traits (fruit length, diameter and weight) and internal fruit quality traits (vitamins B1, B2, C and anthocyanin), and found that environmental factors significantly influenced fruit characteristics. Taken together, we concluded that on the northern slope of Changbai Mountain, bog bilberry fruits were larger at low altitudes, fruits at mid altitudes contained higher vitamins B2 and C, while high altitude (especially at 2 190 m) was beneficial for vitamin B1, anthocyanin, and DPPH free radical scavenging ability.

Non-invasive methods for analysing pig welfare biomarkersReview

M Svoboda, M Nemeckova, D Medkova, L Sardi, N Hodkovicova

Vet Med - Czech, 2024, 69(5):137-155 | DOI: 10.17221/17/2024-VETMED

At present, the assessment of pig welfare quality has gained significant importance, prompting the exploration of novel biomarkers for this purpose. Traditionally, these biomarkers have been monitored in the blood; however, blood sampling is considered an invasive procedure. Currently, non-invasive methods for collecting samples are emerging as viable alternatives for assessing these biomarkers. This article aims to present the current knowledge regarding the use of non-invasive methods for analysing pig welfare biomarkers, specifically focusing on the saliva, hair, faeces, and urine as matrices to determine these biomarkers. The saliva analysis encompasses various biomarkers, such as cortisol, alpha-amylase, chromogranin A, the total esterase, oxytocin, acute phase proteins, adenosine deaminase, immunoglobulins and parameters of redox homeostasis. Cortisol, a specific biomarker, can be determined in the hair, urine and faeces, while urine samples allow for the analysis of catecholamines as non-invasive markers of pig welfare.

Enhanced maize yield and nitrogen efficiency with low molecular weight fulvic acid: insights into chlorophyll a/b ratio and nitrogen metabolising enzyme activityOriginal Paper

Fugui Li, Shujie Zhang, Longhang Chai, Zhiqiang Guo, Peipei Li, Yanlai Han, Yi Wang

Plant Soil Environ., 2024, 70(10):632-643 | DOI: 10.17221/320/2024-PSE

This study investigates the impact of various molecular weights (MWs) of fulvic acid (FA) on maize growth, grain yield, and nutrient uptake under different nitrogen levels (NLs). A 2 × 3 balanced design was employed, with high (0.2 g N/kg) and low (0.05 g N/kg) NLs, and three FA MW ranges (W1 ≤ 3 000 D, 3 000 < W2 ≤ 10 000 D, W3 > 10 000 D) were applied at 25 mg/kg in soil. Significant interactions between NLs and FA MWs were observed in chlorophyll a/b ratio, nitrate reductase and glutamate dehydrogenase activities, nitrogen content, and nitrogen uptake efficiency. Overall, under different NLs, FA application reduced chlorophyll a/b ratio, increased nitrogen metabolism enzyme activities, promoted maize growth, and thereby improved grain yield and nitrogen fertiliser uptake efficiency. Additionally, the promotion effect of low MW FA on these indicators outweighed that of high MW FA, yet the latter exhibited a more pronounced effect on increasing grain nitrogen concentration. Structural equation model analysis revealed direct effects of chlorophyll content, nitrogen accumulation, nitrogen uptake efficiency, NLs and FA MWs on maize grain yield, with FA MWs negatively impacting yield.

Geographical forest zonation: Perspectives, history and useReview

Petr Dujka, Antonín Kusbach

J. For. Sci., 2024, 70(7):335-352 | DOI: 10.17221/5/2024-JFS

The rate of climate change advancement and its predicted impact are valid reasons for intense discourse on the topic of choosing the most suitable silvicultural and adaptation measures for the longevity and sustainability of forest communities. Changes in growth conditions of plants can be expected in both vertical (altitudinal) and horizontal (geographical) directions. The anticipated occurrence rate of these changes should, according to climate models, be higher than the natural adaptability rate of longevous tree species. This study focuses on the possibility of utilising regional geographical units of the Czech Republic (Central Europe) – Natural Forest Areas (NFAs) – for introducing the principles of assisted forest migration to national silviculture policies in order to find solutions for the predicted climate change scenarios. The primary objectives are (i) to review the history of the NFA concept, (ii) to discuss the perspectives of NFAs with regard to climate change, and (iii) to propose possible solutions for further development in comparison with alternative approaches to horizontal classification of the Czech Republic. This study is the first of its kind that provides a complete textual and graphic overview of the NFAs' history from 1959 to 2018, highlighting the purpose of NFAs as both frameworks for the maintenance of the genetic potential of forest tree species' populations and frameworks for long-term strategic management planning. Further development of the concept is discussed in connection with the main principles of assisted forest migration and the possibility of employing geospatial modellation analyses for a more precise definition of current NFA borders. An assessment of the areas' potential is also debated, mainly with an emphasis on the zonality of forest sites.

Effects of exogenous 2, 4-epibrassinolide and its inhibitors on the seed setting and yield of Tartary buckwheatOriginal Paper

Peiuyn He, Huangdanni Ran, Kaifeng Huang

Plant Soil Environ., 2025, 71(3):161-170 | DOI: 10.17221/669/2024-PSE

The aim of this study was to evaluate the effects of exogenous 2, 4-epibrassinolide (EBR) on the yield of Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn.). A 2-year field experiment was conducted on Tartary buckwheat (cv. Jinqiao 2) with different concentrations (0, 0.1, 0.5, 1.0, and 2.0 mg/L) of EBR and brassinolide (BRZ, inhibitor of brassinolide synthesis). The seed setting rate, agronomic traits, and yield initially increased and then decreased with an increase in the EBR application rate. The seed setting rate, agronomic traits, and yield decreased gradually with an increase in BRZ concentration, and yield was the lowest at 2.0 mg/L. The appropriate application of exogenous EBR could promote the increase of Tartary buckwheat yield. Compared with 0 mg/L (control), the 0.1, 0.5, and 1.0 mg/L treatments increased yield by 13.53, 32.73, and 7.08%, respectively, while the high-concentration treatment (2.0 mg/L) decreased by 4.13%. In conclusion, the appropriate concentration of EBR treatment (0.5 mg/L) delayed the senescence of Tartary buckwheat by increasing its root activity and the activity of antioxidant enzymes in leaves. Simultaneously, it increased the chlorophyll content of Tartary buckwheat leaves, enhanced photosynthesis, increased nonstructural carbohydrate content, and augmented the "source," increasing the seed setting rate and yield of Tartary buckwheat. This concentration is recommended for use in the production of Tartary buckwheat.

Claw diseases are the dominant cause of lameness in dairy cows and a risk factor for mastitisOriginal Paper

V Hisira, J Zahumenska, M Kadasi, R Klein, P Mudron, F Zigo

Vet Med - Czech, 2025, 70(2):35-44 | DOI: 10.17221/56/2024-VETMED

Lameness and mastitis are two of the most economically important issues for the dairy industry. This study aimed to obtain a clearer analysis of the link between mastitis and lameness in dairy cows using the Mastitis Score and detecting the pathogens that predominate in dairy cows’ milk samples with claw diseases. During routine claw trimming, milk samples were collected from dairy cows in two Slovak dairy farms. Out of 558 cows presented for claw trimming, 144 cows (25.8%) exhibited lameness from claw diseases. The most prevalent disease in our study was digital dermatitis (43.1%), followed by toe necrosis (41.7%), and Rusterholz ulcer (15.3%). Udder inflammation in clinical form was diagnosed based on clinical examination of individual udder quarters, and sensory evaluation of milk from each quarter and in the subclinical form by the CMT. Mastitis was detected in 80 cows with claw diseases, clinical mastitis in 14 cows (17.5%), and subclinical mastitis in 66 cows (82.5%). On both farms, Mastitis Scores were significantly higher in dairy cows affected by claw diseases than in the non-lame ones. In mastitic cows affected by claw diseases, environmental pathogens dominated the infected milk samples. Our findings showed that cows with claw disease were more likely to have mastitis.

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.

Antibacterial activity and compositional analysis of Acer truncatum bunge leaf extract against Staphylococcus aureusOriginal Paper

F Liao, J He

Vet Med - Czech, 2025, 70(5):166-176 | DOI: 10.17221/65/2024-VETMED


Staphylococcus aureus is a zoonotic pathogen that can cause various diseases in both humans and animals. This experiment evaluates the antibacterial activity of extracts from Acer truncatum leaves against S. aureus, including the minimum inhibitory concentration (MIC), growth curve, and cell membrane integrity assessment, alongside the identification of the extract components by LC-MS. Results demonstrated that the MIC of the n-butanol extract from the ethanol extract of Acer truncatum leaves against S. aureus was 3.125 mg/ml, with a minimum bactericidal concentration (MBC) of 6.25 mg/ml. Over 16 h, the extracts at concentrations of 0.25 MIC, 0.5 MIC, and 1 MIC effectively inhibited S. aureus growth. The fluorescence staining revealed that the extracts at different concentrations compromised the structural integrity of the cell membrane. The LC-MS analysis identified the principal constituents of the extract as betaine (27.189%), 3,4-dihydroxymandelic acid (16.112%), quercitrin (14.768%), chlorogenic acid (8.778%) and neochlorogenic acid (4.452%). The study indicated that Acer truncatum leaf extract has good potential for application in natural antibacterial drugs.

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).

Exploring the role of epistemic benefit and responsible tourist behaviour in the selection of local wine by touristsOriginal Paper

Edgar J. Sabina del Castillo, Ricardo J. Díaz Armas, Desiderio Gutiérrez Taño

Agric. Econ. - Czech, 2025, 71(7):410-422 | DOI: 10.17221/383/2023-AGRICECON

The consumption of local wine at tourist destinations plays a fundamental role in creating authentic experiences. However, there is very little research that has looked in depth into the factors that influence tourists' consumption of this product, especially in relation to epistemic benefits and responsible tourist behaviour. This study proposes a theoretical model based on the Theory of Planned Behaviour (TPB). We conducted a survey involving 619 travellers who regularly consume wine when visiting Tenerife (Canary Islands, Spain). The results show that epistemic benefit and responsible tourist behaviour have a positive relationship with attitudes toward local wine consumption, subjective norms, and perceived behavioural control. Furthermore, the relationships proposed by the TPB are confirmed, except for the relationship between subjective norms and behavioural intention. These findings provide new knowledge on local wine consumption by tourists which will help to develop strategies to encourage its consumption in tourist destinations.

Silver fir restitution: The role of seedling stock type in adapting to various environmental conditionsOriginal Paper

Wojciech Kowalkowski, Rados³aw Jagie³³o, Marlena Baranowska, Wladys³aw Barzdajn

J. For. Sci., 2025, 71(7):358-371 | DOI: 10.17221/28/2025-JFS

Due to past human activities, Abies alba Mill. (European silver fir) now covers only 0.7% of the forest area in the Sudety Mountains. A large-scale restitution program has been launched to produce, plant, and effectively protect over 200 million seedlings. This study aims to validate commonly used seedling stock types and provide critical insights into identifying the most effective one. Three-year-old bareroot seedlings were produced in the open-canopy nursery (3/0) or under-canopy nurseries in Scots pine (Pinus sylvestris L.) (3/0 Sp) or Norway spruce [Picea abies (L.) H. Karst] (3/0 Ns) stands. Two stocks were produced in a greenhouse and transplanted to an open-canopy nursery (2/1) after the second year or into containers designed by Kosterkiewicz (2/1 K). Seedlings have been planted in four regions in the Sudety Mountains. Two performance characteristics have been measured: height and survival rate. Our findings demonstrate a clear gradient in sapling performance among seedling stock types (survival rate): 2/1 K (81%), 3/0 (73%), 3/0 Sp (73%), 2/1 (70%), 3/0 Ns (62%). This paper has shown that under favourable environmental conditions, bareroot seedlings can sufficiently achieve stable regeneration. Containerised seedlings perform better in harsher and more challenging microclimatic or trophic conditions. Kosterkiewicz's method presents a relatively low-cost and environmentally friendly alternative for silver fir restitution.

Study on the expression patterns and biological functions of oar-miR-214_3p in the ovary and uterus of Liangshan Black SheepOriginal Paper

Weihua Chang, Fengjiao Qiu, Shanchuan Liu, Guochao Ni, Ying Zhao, Yi Zhang, Guangwen Yan, Juanhong Wang

Czech J. Anim. Sci., 2025, 70(8):335-344 | DOI: 10.17221/36/2025-CJAS


This study elucidates the expression dynamics and biological functions of oar-miR-214_3p in ovarian and uterine tissues of Liangshan Black Sheep across distinct stages of the oestrous cycle, providing novel insights into its regulatory mechanisms governing ovine reproductive physiology. The study employed RT-qPCR, northern blotting, FISH, dual-luciferase reporter assays, and ELISA to analyse the expression and biological functions of oar-miR-214_3p in the ovary and uterus of Liangshan Black Sheep across different stages of the oestrous cycle (proestrus, oestrus, metoestrus, and dioestrus phases). RT-qPCR and northern blotting revealed that oar-miR-214_3p is expressed in the ovarian and uterine tissues, with significant variations across different stages. Compared with the dioestrus and metoestrus phases, oar-miR-214_3p expression was significantly increased during the proestrus and oestrus phases (< 0.05), with the highest levels observed during oestrus (< 0.05). FISH analysis indicated that oar-miR-214_3p is primarily localised in the cytoplasm. We constructed wild-type and mutant vectors for mammalian target of rapamycin(mTOR) and Semaphorin 4D (Sema4D). After intervention for 48 h in granulosa cell cultures, RT-qPCR analysis of mTOR and Sema4D expression revealed that the mimic and inhibitor groups suppressed and promoted the expression of these target genes, respectively. The control and NC groups showed stable expression levels with no significant differences. Dual-luciferase reporter assay confirmed that mTOR and Sema4D are oar-miR-214_3p target genes. ELISA revealed that the mimic and inhibitor treatment groups promoted and suppressed oestrogen secretion, respectively. These findings confirm that oar-miR-214_3p, primarily localised in the cytoplasm, regulates ovarian follicle development, ovulation, oestrogen secretion, and the oestrous cycle via its target genes, mTOR and Sema4D. The study provides valuable insights into improving sheep reproductive performance through molecular breeding techniques. These findings have significant clinical and practical applications for enhancing reproductive efficiency.

Cryopreservative and antimicrobial properties of kaempferol on the post-thaw quality of turkey spermatozoaOriginal Paper

Filip Benko, Tomá¹ Slanina, Michal Ïuraèka, Miroslava Kaèániová, Eva Tvrdá

Czech J. Anim. Sci., 2025, 70(9):404-413 | DOI: 10.17221/79/2025-CJAS


At present, the low post-thaw quality of poultry semen presents a challenge to develop new strategies for its cryopreservation. The purpose of this research was to assess the impact of kaempferol (KAE) on post-thaw turkey sperm characteristics (motility, membrane and acrosome integrity, mitochondrial function), oxidative and microbial profile. Turkey semen (n = 40) was diluted and cryopreserved in modified Beltsville extender with 5, 10, and 25 µM of KAE or without it (cryopreserved control – CtrlC), while fresh semen served as negative control (CtrlN). Following thawing, parameters were evaluated including sperm motility, membrane and acrosome integrity, mitochondrial functionality, DNA fragmentation index, apoptosis status, global reactive oxygen species (ROS) generation, lipid peroxidation (LPO) and protein oxidation. Bacterial identification was performed by matrix-assisted laser desorption/ionisation mass spectrometry. Our data suggest that motility, membrane and acrosome integrity, mitochondrial activity continuously increased correspondingly to KAE concentration versus CtrlC (P < 0.05) while cell apoptosis, ROS generation, LPO and protein oxidation were significantly decreased in KAE treated groups versus CtrlC (P < 0.05). Bacterial growth was suppressed in all KAE-treated groups, which acted synergistically with penicillin to eradicate most bacterial strains from cryopreserved samples versus CtrlN. Finally, our results suggest that KAE possesses strong antioxidant and antimicrobial properties which may be used to improve commercially available extenders for more effective preservation of turkey spermatozoa.

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.

Influence of dietary coriander seeds and administration of Lactobacillus acidophilus on the performance of growing rabbits under subtropical climatic conditionsOriginal Paper

SM Abdel-Raheem, MA Kobeisy, YA Gomaa, AMA Meligy, M Elalfy, MM Farghaly

Vet Med - Czech, 2025, 70(9):313-328 | DOI: 10.17221/104/2024-VETMED

This study investigated the effects of coriander seed powder and Lactobacillus acidophilus solution (LAS) on the growth, nutrient digestibility, blood parameters, and intestinal health of growing rabbits under subtropical conditions. Forty Californian rabbits, aged 35 days with an average body weight of 588 ± 34 g, were randomly assigned to four groups: a control group fed a standard diet, a group (T1) receiving the basal diet supplemented with 1.5% coriander seed powder, a group (T2) receiving the basal diet with oral LAS at 1 × 109 CFU/kg, and a group (T3) receiving both coriander seed powder and LAS. The study measured body weight, daily weight gain, feed conversion ratio, mortality rate, blood metabolites, nutrient digestibility, and intestinal histomorphology. Results showed that rabbits fed with 1.5% coriander seed powder had significant improvements in body weight gain, feed conversion, and a reduction in mortality compared to the control. Both coriander seed powder and LAS improved blood metabolites, nutrient digestibility, and intestinal health. However, the combination of both additives did not provide additional benefits over the individual treatments. The findings suggest that either 1.5% coriander seed powder or LAS can enhance growth performance and health in rabbits under subtropical conditions.

Leaf area index and soil water content responses to pre-commercial thinning in Norway spruce plantations under climate changeOriginal Paper

Jakub Èerný, Zdenìk Vacek, Jan Cukor, Dominik Báòa, Stanislav Vacek

J. For. Sci., 2025, 71(12):599-613 | DOI: 10.17221/79/2025-JFS


Global climate change (GCC) and increasing drought frequency pose a threat to the stability of European forests, particularly those of Norway spruce [Picea abies (L.) Karst.] plantations. We investigated how different pre-commercial thinning (PCT) intensities affect leaf area index (LAI) and its relationship to soil water content (SWC) in young spruce stands in northeastern Czechia. Three permanent research plots in a 13-year-old monoculture were subjected to mild PCT, heavy PCT, or left as an unthinned control in winter 2019/2020. Thinning caused an immediate decrease in LAI, with averages of 8.3 ± 1.1 m2·m–2 (mild), 3.8 ± 0.5 m2·m–2 (heavy) and 11.1 ±1.1 m2·m–2 (control) in 2020. By 2023, LAI in the mildly thinned stand had largely converged with the control, whereas the heavily thinned stand maintained significantly lower LAI. The strongest relationship between LAI and SWC occurred in the heavily thinned plot (R2 = 0.715 in 2021), while correlations were weak or transient in the mildly thinned and control plots. These results indicate that PCT intensity influences both the magnitude and duration of LAI reduction and is associated with differences in stand water dynamics. Appropriately adjusted thinning may therefore modestly affect water availability and could contribute to adaptive management of spruce forests under GCC.

Allelopathic potential of Turnera subulata leaf extract on choy sum (Brassica chinensis var. parachinensis) via untargeted metabolomicsOriginal Paper

Nor Atirah Mohd Aridi, Nornasuha Yusoff, Muhd Arif Shaffiq Sahrir, Kamalrul Azlan Azizan

Plant Protect. Sci., 2026, 62(1):79-92 | DOI: 10.17221/148/2024-PPS


Allelopathic plants release phytotoxic compounds that contribute to their invasiveness by suppressing nearby species. However, it remains unclear which exact mode of action (MOA) underlies the allelopathy. This study explores the allelopathic mechanisms of Turnera subulata on the recipient indicator plant choy sum using a metabolomics approach. Briefly, T. subulata leaf aqueous extracts (LAEs) at different concentrations (0.0, 0.1, 1.0, 10.0, 50.0, and 100.0 mg/mL) were sprayed at 100 mL/m2 on choy sum seedlings at the two to three leaf stage. After 21 days, the Soil Plant Analysis Development (SPAD) values and photosynthetic pigments of the exposed choy sum were measured, and their metabolites were subjected to a gas chromatography-mass spectrometer (GC-MS) analysis. The results revealed a 25% decrease in the SPAD, a reduction of 65% (chl a) and 71% (chl b), and a 45% reduction in the stomatal length at 100 mg/mL. A total of 15 significant metabolites (P < 0.05) with variables important for the projection score exceeding 1 (VIP > 1) were selected as the important biomarkers. These metabolites were identified as amino acids, carbohydrates, and fatty acids. The findings reveal the allelopathic potential of T. subulata and provide insights into the response of choy sum in response to the allelopathic activity of T. subulata LAEs.

Influence of the ageing time on the quality of three kinds of cold-climate mountain grape brandyOriginal Paper

Fang Gu, MengYing Gao, XueFeng Wang, MeiQi Lv, JinLong Zuo, Chong Tan, Zhi Xia, JunSheng Li

Czech J. Food Sci., 2026, 44(1):71-81 | DOI: 10.17221/20/2025-CJFS

Northeast China boasts abundant resources of cold mountain grapes. This study focused on three varieties of cold mountain grape brandy, Beibing Hong (BBH), Shuanghong (SH), and Zuoshanyi (ZSY), with varying ageing periods to investigate changes in their physicochemical properties, nutrients, and aroma compounds. Results showed that alcohol content and pH gradually decreased with ageing, while total acidity (including inorganic acids) increased. Specific organic acids declined over time, whereas polyphenolic compounds increased with longer ageing. Furthermore, the total quantity of aroma substances in all three brandies was positively correlated with ageing duration, with 18-month-aged BBH brandy exhibiting the highest content and the richest aromatic variety. Clustering analysis via heat maps revealed that brandies aged 12 and 18 months grouped together, showing that ageing time correlated positively with most esters and alcohols and negatively with acids. No significant variations were observed in the contents of terpenes, aldehydes and ketones among the three brandy varieties.

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