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Results 481 to 510 of 2032:

Development of a layered double hydroxides-based air-assisted D-μSPE method in combination with HPLC for the determination of gallic acid in honeyOriginal Paper

Yumei Xiao, Yang Jiang, Tian Liu, Yuanyi Wu, Jialin He, Tian Liu, Yi Yang

Czech J. Food Sci., 2024, 42(2):100-108 | DOI: 10.17221/222/2023-CJFS


Determining gallic acid in honey can provide information for assessing the nutritional value and tracing the source of honey. However, the complex matrix of honey and the low content of gallic acid may hamper the detection. Therefore, it is important to select an appropriate sample preparation method. This work established an air-assisted dispersive micro-solid phase extraction combined with a high-performance liquid chromatography method to determine gallic acid in honey. Zinc/nickel/aluminium layered double hydroxides were selected as the adsorbent to extract gallic acids in diluted honey samples. Under air-assisted extraction, the adsorbents adsorbed gallic acid in honey via anion exchange. Subsequently, the isolated adsorbents were dissolved in a 1% phosphoric acid solution. A high-performance liquid chromatography-UV-Vis detector was used for gallic acid detection. Under the optimised conditions, gallic acid showed good linearity over the concentration range of 0.005–10.0 mg·L–1 with a coefficient of determination greater than 0.999. The detection limit and quantification limit were 13.5 and 45 ng·g–1, respectively. The recoveries were 89.8–93.4%, with the intra-day and inter-day relative standard deviations in the range of 0.71–1.17% and 0.76–1.27%, respectively. The method possesses the advantages of simplicity, rapidity, economy and environmental friendliness and is suitable for detecting gallic acid in honey.

Effect of the body mass index and length of work on the stress of individual body parts of chainsaw operatorsOriginal Paper

Lubo¹ Stanìk, Václav Mergl

J. For. Sci., 2024, 70(8):436-445 | DOI: 10.17221/26/2024-JFS

The subject of this study is to point out the issue of various impacts of musculoskeletal disorders in chainsaw operators and their impact on human health. The first goal was to find out whether the body mass index is responsible for excessive stress to individual parts of the body of chainsaw operators at work. The second goal was to determine whether the excessive load to the individual body parts is affected by the time of working with the chainsaw. Questionnaires created for the fulfilment of the goals were distributed to professional forest loggers working in the Czech Republic, which were filled in by 161 of them. Questions in the first part of the questionnaire were formulated in such a way that answers to them would clearly identify information on the individual respondents. The second part of the questionnaire was focused on the assessment of the load upon 12 body parts of the operators (each part being split into the right and left sides). The results of the statistical analysis showed that neither the body mass index (BMI) nor the length of time working with the chainsaw affect the load on the individual parts of the body of the chainsaw operators.

A survey on rabbit meat perception and consumption in seven countriesOriginal Paper

Katalin Szendrõ, Antonella Dalle Zotte, Nikoletta Fülöp, Mónika Zita Nagy

Czech J. Anim. Sci., 2024, 69(10):419-429 | DOI: 10.17221/123/2024-CJAS



The aim of the study was to examine the rabbit consumption habits and opinions of people living in countries that regularly consume rabbit meat. Snowball sampling of data collection was used, a total of 1 860 error-free questionnaires were evaluated. Most of the completed questionnaires came from Hungary, Italy, Spain, China, Poland, France and Mexico. It is to note that 21.3% of respondents have not yet consumed rabbit meat: China (32.1%), Hungary (24.7%), Poland (22.4%), and France (4.8%). The main reasons for not consuming rabbit meat were emotional reasons (22.3%), it does not fit their dietary habits (15.7%). There are 28.7% of respondents who consume rabbit meat once or twice a year, 18.6% less often and 21.9% monthly. It was most often (weekly and monthly) consumed in Spain (25.3% and 36.8%), in Italy (15.3% and 36.2%), in France (1.6% and 38.7%, respectively). Men, aged 40 to 59, secondary school graduates, and those having a higher income eat rabbit meat more often than other groups. The highest scores (near to 4.5 on a 1-5 scale) were given for the health aspects of rabbit meat, such as high protein, omega-3 fatty acids and vitamins, and low fat and cholesterol contents. In order to encourage the consumption of rabbit meat, different marketing campaigns should be carried out in each country, depending on the standard of living, production intensity (large-scale or small-scale) and place of purchase (supermarket or local market). It is paramount to make the younger generation aware of the excellent and health-protective properties of rabbit meat.

Parameters of labile organic carbon as the indicators of the stability of soil organic matter under different land useOriginal Paper

Erika Balontayová, Juraj Hre¹ko, Viera Petlu¹ová, Peter Petlu¹, Bo¿ena Dêbska, Tomá¹ Lo¹ák

Soil & Water Res., 2025, 20(1):52-68 | DOI: 10.17221/119/2024-SWR

The labile fractions of organic carbon (OC), which are a reflection of the properties of soil and its use, appear to be suitable parameters for their use as indicators. The aim of this study was to determine the reliable and relatively simple indicators for detecting the chemical and physical stabilizations of OC, which would respond sensitively to land use. The study includes forest ecosystem (FE) and agroecosystem (AE) with different tillage intensities (reduced tillage, RT and conventional tillage, CT) on real farms. Parameters of the labile C and N were tested. For a depth of < 0.1 m in the FE, the hot water extractable organic carbon (HWEOC) for chemical stabilization and labile nitrogen (NL) for physical stabilization appear as the most suitable indicators. Higher values of HWEOC indicate the OC stabilization by decreasing decomposition, pH or by increasing carbonates, recalcitrant fractions, and higher values of NL by OC incorporation into the silt fraction and larger macro-aggregates. In the AE with RT, these are the HWEOC for chemical stabilization and carbon pool index (CPI) or index of carbon lability (LIC) for physical stabilization. Higher values of CPI and LIC indicate the stabilization by the formation of size-optimal dry-sieved (DSA; 1–3 mm) and wet-sieved (WSA; 1–2 mm) soil aggregates. In the AE with CT, it was the NL. Its higher values point to the stabilization through the carbonates, alkaline cations, size-fraction of > 0.01 mm and the formation of DSA (1–3 mm). For a depth of < 0.3 m in the AE, these are the CL (for RT), higher value of which points to the stabilization by clay and alkaline cations, and HWEOC (for CT), higher value of which indicates the stabilization in the conditions of the soil acidification.

Mid-infrared milk screening as a phenotyping tool for feed efficiency in dairy cattleReview

Ludmila Zavadilová, Eva Ka¹ná, Zuzana Krupová, Alena Pechová, Petr Fleischer, Soòa ©losárková

Czech J. Anim. Sci., 2025, 70(1):1-16 | DOI: 10.17221/165/2024-CJAS


Feed efficiency (FE) is one of the most essential traits in dairy cattle, primarily due to the high cost of feed, which constitutes a significant portion of dairy herd expenses. Unfortunately, assessing FE in individual cows requires precise measurement of feed consumption, a labour-intensive and expensive process that is impractical for group-fed cows on production farms. Efforts have been made to predict FE or, more precisely, dry matter intake (DMI), using predictors such as a body weight (BW), milk yield (MY), and milk composition. Recently, Fourier transform mid-infrared (FT-MIR) spectroscopy has been proposed as a tool to enhance the accuracy of DMI prediction. This paper reviews the application of FT-MIR milk spectroscopy for deriving FE phenotype in dairy cattle. FT-MIR is a reliable and widely used method for routine analysis of milk components. In FE phenotyping, predictive equations often incorporate FT-MIR alongside other traits such as BW, MY, milk composition, herd, breed, days in milk, and pregnancy. The most commonly used mathematical approaches are partial least squares (PLS) regression and artificial neural networks (ANN). Prediction accuracy varies across studies, depending on the mathematical method and model employed. Predictions based solely on FT-MIR data have demonstrated moderate accuracy (coefficient of determination), ranging from 0.19 to 0.40. However, integrating all data sources including MY, milk composition, FT-MIR, and near-infrared reflectance spectroscopy (NIR) is crucial and results in higher accuracy, with reported values ranging from 0.03 to 0.81.

Clinical and microbiological evaluation of foot diseases in small ruminants in Siirt province (Türkiye) and its districtsOriginal Paper

A Gulaydin, O Gulaydin, M Yesilyurt, N Sindak, MB Akgul, O Yildrim

Vet Med - Czech, 2025, 70(2):54-67 | DOI: 10.17221/81/2024-VETMED

Foot diseases are one of the leading health problems that lead to significant yield losses in small ruminant breeding. This study aimed to clinically evaluate foot diseases in sheep and goats reared in Siirt province of Türkiye and its surrounding districts. Molecular methods were used to investigate the presence of Dichelobacter nodosus serogroups and Treponema spp. phylogroups in cases with identified lesions. Clinical examination of 4 111 sheep and goats identified foot diseases in 402 animals, affecting a total of 410 feet. Contagious ovine digital dermatitis (CODD) and digital dermatitis (DD) cases were identified in 66.82% and 26.82% of diseased feet, respectively. Footrot lesions were found in 4.87% of the feet in which the disease was identified. D. nodosus was detected in 66.23% of swab samples collected from 77 CODD cases, whereas Treponema spp. was identified in 2.59% of the samples. Among DD cases (n = 110), D. nodosus was found in 35.45% and Treponema spp. in 17.27% (Group 1 = 1.81%, Group 2 = 15.45%). The majority of D. nodosus strains identified in the cases (n = 90) were classified as serogroup A (37.77%) and serogroup D (60.00%). This study revealed that CODD is a major problem in small ruminant breeding in the Siirt province and its districts. It was determined that D. nodosus serogroup A, D and Treponema spp. Group 2 strains played an important role in the aetiology of foot diseases in sheep and goats. This study represents the first comprehensive investigation of foot diseases in sheep and goats in the Siirt province and marks a significant milestone as the first study in Türkiye to identify and analyse the aetiology causes of CODD in the literature.

Research on agricultural science and technology advancement enabling the development of rural industrial incorporation from the perspective of decompositionOriginal Paper

Sheng Yao, Guosong Wu

Agric. Econ. - Czech, 2025, 71(6):308-322 | DOI: 10.17221/294/2023-AGRICECON

Taking China as an example in this study, we aim to reveal the enabling effects of agricultural science and technology advancement on the progress of rural industrial incorporation at a relatively more refined level. The main innovation in this study lies in the decomposition of agricultural science and technology advancement, followed by an analysis of its effect on rural industrial incorporation along both linear and non-linear dimensions. The study results show that, along the linear dimension, agricultural science and technology advancement, agricultural knowledge advancement and agricultural technology advancement play significant driving roles in the progress of rural industrial incorporation. However, although the estimated coefficient of the integration of agricultural knowledge advancement and technology advancement is positive, it is not statistically significant. Along the non-linear dimension, agricultural science and technology advancement, agricultural knowledge advancement and agricultural technology advancement all exhibit significantly positive effects across different intervals. However, although the integration of agricultural knowledge advancement and technology advancement also shows a positive effect, its significance appears only in the second interval, indicating that the effect of this variable in promoting rural industrial incorporation can be realised only under certain conditions

Selection of high-quality tree peony varieties suitable for the south Yangtze River areaOriginal Paper

Zijian Li, Yuxuan Zhu, Xinai Yang, Yajun Xiang, Ying Zhang, Hongbing Wang, Zheng Wang, Shuiyan Yu, Yonghong Hu

Hort. Sci. (Prague), 2025, 52(1):42-52 | DOI: 10.17221/11/2024-HORTSCI

To select tree peony varieties with high ornamental value suitable for the hot and humid environment of the south Yangtze River area, 74 tree peony varieties from the Chenshan Botanical Garden in Shanghai were selected as experimental materials. The experiment involved initial selection for leaf humidity and heat tolerance, assessing the ornamental value during the flowering period of the following year and measuring a series of indicators such as the relative chlorophyll content of the leaves. Methods including principal component analysis, cluster analysis, and comprehensive membership function were employed. The results indicated that among the varieties assessed for humidity and heat tolerance, 43 obtained a composite score of 3.75 or above. Upon further assessment of the flowering period for these 43 varieties in the subsequent year, 14 varieties clustered in the top tier based on their scoring for ornamental value. Then, during the summer season, physiological indicators were measured for the previously selected 14 tree peony varieties. Combining these data with the comprehensive membership function, the humidity and heat tolerance of each variety were quantified. The synthesis of scores, combined with cluster analysis, revealed that varieties including ‘Yinhong Qiaodui’, ‘Shengge Jin’, ‘Linghua Zhanlu’, ‘Baixue Gongzhu’, ‘Di Guan’, and ‘Cunsong Ying’ exhibit both high ornamental value and tolerance to humidity and heat, making them suitable for cultivation in the south Yangtze River area.

Effect of various lengths of cold stratification period on the germination of wild service tree (Sorbus torminalis) seed samples harvested in the Czech RepublicOriginal Paper

Miroslav ©ulitka, Ivan Kune¹, Martin Balá¹, Kateøina Pe¹ková, Pøemysl ©edivka, Tomá¹ Holeèek, Vilém Podrázský

J. For. Sci., 2025, 71(4):171-181 | DOI: 10.17221/61/2024-JFS

The paper deals with the assessment of the influence of the length of cold stratification period on the germination parameters of seeds of wild service tree [Sorbus torminalis (L.) Crantz]. The germination tests (4 × 100 seeds) were conducted in two runs in 2020 and 2021; they were performed for three seed lots and three cold stratification periods (two, three and four months) before the testing of germination in each run. The values of germination energy and germination capacity were assessed, and the germination rate was computed. The results showed that the two-month cold stratification period has not been sufficient to overcome the dormancy of tested seeds. Regardless of the year in which the tests were conducted, seeds stratified for two months showed almost zero germination. For seeds treated with three- and four-month cold stratification, the germination percentage varied from ca. 5% to 32% and from ca. 13% to 46%, respectively. Our results basically correspond with findings reported in the reviewed literature. In 2020, the seeds subjected to four-month stratification performed significantly better than the seeds subjected to three-month stratification. However, in 2021, the seeds stratified for three months reached slightly better results. Four-month stratification also led to an increased percentage of prematurely germinated seeds during stratification. To conclude, the two-month period of cold stratification proved to be insufficient and at least three months of cold stratification are needed to obtain the adequate germination of seeds in subsequent laboratory tests.

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.

Revitalising subalpine grasslands: floristic shifts under renewed grazingOriginal Paper

Marie Mrázková-©týbnarová, Michaela Koláøová, Radek ©tencl, Prokop ©mirous, Marie Bjelková, Josef Holec, Martin Va¹inka, Ludìk Ty¹er, Oldøich Látal

Plant Soil Environ., 2025, 71(5):338-352 | DOI: 10.17221/12/2025-PSE

The species diversity of the unique flora in the Hrubý Jeseník Mountains is currently threatened due to the absence of traditional grazing, which was historically used as a management practice. This study evaluates changes in floristic composition in areas near the ©výcárna and Ovèárna lodges, where cattle and sheep grazing was reintroduced in 2012 and 2014, respectively, after long-term abandonment. The floristic composition was assessed using permanent plots and analysed statistically. In total, 84 plant species were recorded in the ©výcárna experimental area over 12 years. All experimental plots throughout the study observed an increase in species richness. In the Ovèárna area, a similar trend was detected, particularly in grazed grasslands dominated by Avenella flexuosa, Festuca supina, and Ligusticum mutellina. The reintroduction of grazing in these areas serves not only as a symbolic return to traditional land use but primarily as an effective management tool to suppress ecological succession and maintain or enhance plant species diversity in biologically valuable habitats.

Decontamination of Aspergillus parasiticus in rice by dielectric barrier discharge cold plasma: Variable effects and mechanism of degradationOriginal Paper

Zhu Shuo, Yan Zhongjun, Shanshan Shi, Ai Zhi, Chenghong Wang, Fei Shen

Czech J. Food Sci., 2025, 43(3):226-234 | DOI: 10.17221/153/2024-CJFS

Rice is prone to be contaminated with spoilage or toxigenic fungi during harvest, storage and processing, with Aspergillus species being the most frequent. It is crucial to develop effective sterilisation technologies for mycotoxin prevention and food safety. In this study, sterilised rice infected by Aspergillus parasiticus strain was treated by dielectric barrier discharge (DBD) cold plasma. Various parameters, including moisture content, oxygen content, treatment time and voltage were tested. Furthermore, sterilisation mechanism of Aspergillus parasiticus by cold plasma was also explored. Results indicated that decontamination effect could be significantly affected by moisture content, oxygen concentration, voltage and treatment time. A 99.89% degradation rate against Aspergillus parasiticus was achieved at 90 kV after 5 min. Cold plasma could reduce the initial concentration of 6.05 to 2.28 CFU·mL–1 within 240 s, and to thoroughly decontamination within 360 s. In addition, cold plasma treatment destroyed the integrity of Aspergillus parasiticus cell membrane, resulting in a reduction in mycelium biomass and dry weight, as well as a significant decrease in intracellular Ca2+Mg2+-adenosine triphosphatase (ATPase) activity. These findings demonstrate the potential of cold plasma technology for environmentally friendly sterilisation of hazardous fungi in grain system.

The role of spent coffee ground extracts as natural antioxidant supplements in the diet of Nile Tilapia (Oreochromis niloticus)Original Paper

Khamanitjaree Saripan, Urailuck Pongket, Suriya Udduang, Supalug Kattakdad

Czech J. Anim. Sci., 2025, 70(6):242-252 | DOI: 10.17221/29/2025-CJAS

This study evaluated the potential of spent coffee grounds extract (CGE) as an antioxidant supplement in the diet of Nile tilapia (Oreochromis niloticus). Four experimental diets with varying CGE levels were formulated: 0% (CGE0, control), 2% (CGE2), 4% (CGE4), and 6% (CGE6). Nile tilapia (initial mean body weight = 38.65 ± 0.85 g) were cultured in fiberglass tanks at a stocking density of 20 fish/m2 under continuous aeration. The fish were fed three times daily at 5% of their total body weight. After an 8-week experimental period, the fish fed CGE-supplemented diets exhibited significantly higher growth rate compared to the control group, with CGE4 showing the most pronounced improvement in final body weight (P = 0.027) and weight gain (P = 0.050). However, no significant differences were observed in average daily growth (P = 0.054), specific growth rate (P = 0.256), survival rate (P = 0.487), and feed conversion ratio (P = 0.105) between the dietary treatments. Fish on the CGE6 diet exhibited the highest total plasma protein (P = 0.001) and immunoglobulin levels (P = 0.000). Moreover, CGE supplementation enhanced superoxide dismutase (P = 0.000) and glutathione peroxidase (P = 0.016) activities relative to the control group. The histopathological analysis showed significantly longer intestinal villi in fish fed CGE-supplemented diets, with the longest villi observed in the CGE6 group (P = 0.000). Fish fillets from the CGE6 group exhibited the highest springiness, while hardness was comparable between CGE6 and CGE4 but significantly higher than in CGE2 and CGE0. Additionally, CGE supplementation significantly influenced the colour expression, increasing lightness (L*) while decreasing redness (a*) and yellowness (b*) values. These findings indicate that 4% CGE supplementation is the most effective concentration, as it significantly promotes growth as evidenced by the highest weight gain, while also enhancing blood biochemical parameters, flesh quality, and antioxidative responses in Nile tilapia.

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

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

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

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

Does livestock manure recycling among acquaintance networks decouple crop and livestock production? Evidence from rural ChinaOriginal Paper

Ying Wang, Guanghui Jiang, Jisheng Min

Agric. Econ. - Czech, 2025, 71(9):512-525 | DOI: 10.17221/219/2024-AGRICECON

Livestock manure serves as a vital source of organic fertiliser, with efficient utilisation being crucial for sustainable agricultural development. However, with the development of specialised high-input agriculture, livestock manure recycling (LMR) is currently inefficient and leading to the imbalance between surplus manure and croplands. This study theoretically and empirically investigates whether LMR among acquaintance networks influence the crop–livestock integration (CLI) production. Based on survey data of swine farmers in rural China, the estimates indicate that LMR among acquaintance networks enhances the degree of CLI but may result in over-application of manure. Conversely, LMR with outside villagers or organisations is more likely to reduce the degree of CLI, possibly leading to under-application of manure. The motivation behind farmers' LMR plays a crucial role. Furthermore, the study indicates that formal institution can break the constraints of acquaintance networks on LMR and restructure the crop-livestock relationship beyond the household level. Our findings emphasise that LMR within rural China's acquaintance networks are in a transition phase, exhibiting both relational and market orientation characteristics. It is currently essential to maintain the balance between crop and livestock production, advance the development of LMR social services when designing LMR policies, and to leverage the complementary roles of informal and formal institutions.

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.

Estimation of lean meat percentage in pig carcass with the use of objective methods with regard to sexOriginal Paper

Kristýna Klímová, Kristýna Lokvencová, Ivan Bahelka, Kateøina Zadinová, Roman Stupka, Jaroslav Èítek

Czech J. Anim. Sci., 2025, 70(9):397-403 | DOI: 10.17221/72/2025-CJAS


In the Czech Republic, the pig carcass classification is mandatory in slaughterhouses processing over 200 pigs weekly. As breeding practices evolve to enhance lean meat yield, it is essential to update regression equations used in classification systems. This study presents new regression models for the Fat-O-Meater II (FOM II) device, using computed tomography (CT) as the reference method. Separate equations were developed for barrows, gilts, and boars to improve the accuracy of lean meat percentage (LMC) estimation. To calibrate the CT method, 24 carcasses were selected across a range of backfat thicknesses and sexes. CT scans were performed on chilled left carcass halves, followed by manual dissection to determine the true LMC. A correction model was applied to align the CT-derived LMC with dissection results. Subsequently, 128 carcasses were measured using FOM II and CT to develop sex-specific regression equations using ordinary least squares. The models revealed sex-specific differences in prediction accuracy. Gilts achieved an R2 of 0.66 and RMSEP of 1.35; barrows had higher R2 (0.759) and greater RMSEP (1.46); boars showed the most consistent composition (R2 = 0.734, RMSEP = 1.14). Compared to the standard method, gilts and boars had slightly higher LMC (+0.03% and +0.82%), while barrows had lower LMC (–0.14%). These differences translated into economic impacts, with gains of CZK 1.23 and CZK 4.33 per gilt and boar carcass, respectively, and a loss of CZK 5.55 per barrow carcass. These results support the formulated hypotheses, and the fact that sex-specific calibration enhances classification accuracy and economic efficiency.

Can agricultural subsidy reform promote reduction of fertiliser nonpoint source pollution? Evidence from ChinaOriginal Paper

Fusheng Liang, Guangsi Li, Wo-lin Zheng, Fangyuan Sun, Qian Yang

Agric. Econ. - Czech, 2025, 71(9):485-501 | DOI: 10.17221/412/2024-AGRICECON

The substantial increase in grain production stimulated by traditional agricultural direct subsidies has been accompanied by a concomitant decrease in ecological quality, precipitated by excessive application of chemical fertilisers, which has generated countervailing effects that fundamentally undermine the positive effect of subsidy policies on agricultural output. Consequently, the mitigation of agricultural pollution and the elevation of ecological quality have emerged as pivotal directions for the reform of agricultural subsidies. Using both time-varying difference-in-differences (DID) models and spatial DID models in this study, we examined the effect of agricultural 'three subsidies' reform on agricultural fertiliser nonpoint source pollution (AFNSP), drawing on China's province-sector panel data from 2008 to 2022. The empirical evidence yields several salient findings. First, the three subsidies reform can significantly reduce AFNSP and improve ecological quality. Second, the large-scale operation of agricultural households and the enhancement of agricultural production efficiency serve as effective pathways for the three subsidies reform to reduce AFNSP. Third, the implementation of the three subsidies reform engenders significant spatial spillover effects, which play a crucial role in reducing overall regional AFNSP. Fourth, the efficacy of the three subsidies reform exhibits heterogeneity across diverse agroecological contexts and farming cultures. Last, the reform has resulted in notable improvements in agricultural ecological quality, thereby reinforcing food security capabilities. These findings not only offer valuable reference for refining agricultural subsidy reform but also contribute to the development of a comprehensive framework that simultaneously safeguards agroecological security and food security.

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.

The role of ground heat flux in estimating evapotranspiration by the Penman-Monteith method on mountain meadowOriginal Paper

Michal Dohnal, Jana Votrubová, Rebeka Mazúchová, Miroslav Tesaø

Soil & Water Res., 2025, 20(4):265-273 | DOI: 10.17221/24/2025-SWR

Ground heat flux (G) is often an overlooked component of the surface energy balance, and its accurate determination remains challenging. In the present study, the accuracy of various G estimation methods is examined using long-term measurements from the Central European mountain meadow. The impact of different G approximation on calculated evapotranspiration by the Penman-Monteith method (ET) is analysed. Soil heat flux measurements and surface temperature data were used to determine G, while net radiation was used to approximate G. Neglecting G led to an overestimation of ET in the daily timestep. On the contrary, the FAO-recommended hourly approximation overestimated G, underestimating ET. Site-specific calibrations of G prediction models improved their accuracy. For daily average G, as well as for hourly average G, simple constant parameter models (i.e., models including a single parameter specifying the fraction of net radiation directly) provide satisfactory accuracy of ET evaluation. However, in an hourly timestep, net radiation fails as a predictor of G shortly after sunrise and before sunset. The findings emphasise the importance of considering G in ET calculations and the need for site-specific calibrations of G estimation models.

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.

Soil nutrient contents in a long-term field experiment following the suspension of phosphorus and potassium fertilisationOriginal Paper

Gabriela Mühlbachová, Helena Kusá, Pavel Rù¾ek, Martin Ká¹, Radek Vavera

Plant Soil Environ., 2025, 71(11):770-781 | DOI: 10.17221/310/2025-PSE

The effect of mineral, organic (manure or straw + intercrop) and combined fertilisation on the development of soil nutrient contents over time and their mutual ratios was evaluated in a long-term field trial, IOSDV (established in 1984 at two sites), differing in the soil-climatic conditions. Three cropping cycles, from 2016 to 2018, 2019 to 2021, and 2022 to 2024, were studied in the following crop rotation: winter wheat-winter barley-root crop (sugar beet at Ivanovice na Hané and potatoes at Lukavec). Potassium and phosphorus in mineral fertilisers have not been applied since the year 2020 due to their high content found in soils after dry years with low yields. Consequently, their content decreased, most in the third rotation, both by the Mehlich 3 method and especially the exchange fraction extractable with NH4-acetate (Ivanovice: P 5–14%, 32–40% and K up to 12%, 9–20% determined by Mehlich 3 and NH4-acetate, respectively; Lukavec: Mehlich 3 – P increase: 5–16%, K decrease: 0–8%; NH4- acetate decrease – P: 10–13%, K 8–23%). The mutual ratio of nutrients equivalents K : Mg : Ca was lower than required values 1 : 2–3 : 10–15 at both sites and all studied treatments, however a slight increase was observed during the studied period, above all in system with only mineral fertilisation (Ivanovice: K : Mg : Ca from 1 : 1.2 : 5.6 to 1 : 1.4 : 6.8, Lukavec: from 1 : 1.0 : 7.7 to 1 : 1.0 : 9.6). A correctly balanced ratio of nutrients in the soil is important for maintaining soil fertility. In this long-term field experiment, the increase in nutrient levels in soils over reasonable levels was observed, highlighting the necessity of regular nutrient testing in agricultural soils, especially when multiple types of fertilisers are used simultaneously.

Decision tree analysis of the prospects of organic food: Evidence from China and HungaryOriginal Paper

Yue Wu, Andrea Tick, Katalin Takács-György

Czech J. Food Sci., 2025, 43(6):450-461 | DOI: 10.17221/205/2024-CJFS

With the growing population, increasing income, and high-speed lifestyle, people pay more attention to a healthy diet and nutritional food. Organic food, also regarded as healthy, sustainable, or eco-friendly eating, has gained global popularity. This trend has been particularly amplified by the COVID-19 pandemic, leading to a surge in demand for nutritious foods worldwide. Organic food originated in Europe, with the highest development globally. Its progress varies by country. China's organic food industry began decades ago, growing rapidly. As globalisation advances and China's economy accelerates, it is valuable to examine the organic food industries in Hungary and China. In order to understand the willingness of consumers to buy organic food, we conducted a survey for a month in 2021 from 581 respondents in Hungary (185), China (374), and other countries, compared the respondents' demographic data, organic food consumption and their buying willingness and attitude to recommend organic food to other consumers. The decision tree analysis was deployed to analyse the statistical data via SPSS software. It showed that organic food has a positive demand in both Hungary and China, but some purchase habits are different in these two countries.

Response of potato tuber yield to NPK fertiliser in China: a meta-analysisOriginal Paper

Shun Li, Lei Zeng, Ling Zhao

Plant Soil Environ., 2025, 71(12):883-890 | DOI: 10.17221/514/2025-PSE

Potato (Solanum tuberosum L.) is an economically significant food crop in China, and increasing tuber yield is a national priority. We conducted a meta-analysis utilising 180 studies and 1 583 pairs of observations to quantify the effects of fertilisation on potato tuber yield using data on climate, soil nutrients, and planting strategies. Compared with no fertilisation, fertilisation increased tuber yield by 33.64% overall. Applying single N, P, or K fertilisers increased yield by 33.64, 23.37, and 16.18%, respectively; combined NP, NK, and PK applications increased yield by 33.64, 36.34, and 19.12%, respectively. The greatest yield increase (49.18%) was achieved when NPK fertilisers were applied together. Average annual precipitation had the strongest effect on tuber yield, followed by cultivar identity and the availability of soil potassium. Under appropriate fertilisation regimes, tailoring planting strategies to local climate and soil nutrient status can maximise potato yield and improve economic returns. These findings have implications for future potato cultivation in China.

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.

Effect of compounds used for soaking narcissus bulbs on mycelium coverage of bulbs and substrateOriginal Paper

Adam Tadeusz Wojdy³a, Jacek Stanis³aw Nowak, Jan Bocianowski, Monika Ka³u¿na, Jacek Wi¶niewski, Emilia Waszkiewicz

Hort. Sci. (Prague), 2025, 52(2):103-110 | DOI: 10.17221/42/2024-HORTSCI

In the experiments, two compounds were used: hydrogen peroxide with silver (H2O2-Ag+) and captan, pyraclostrobin + boscalid and methyl thiophanate + tetraconazole to soak narcissus bulbs before planting for the period of 20 minutes. The bulbs were planted in such a way that 2/3 of the bulb was above the surface of the substrate. All the pots with bulbs were subsequently placed in plastic boxes and transferred to a cooling chamber adjusted precisely for 9 °C and 94–99% air humidity. During the rooting of the bulbs in the cold room after 4, 8, 12 and 15 weeks, and then in the greenhouse after cutting the above-ground parts, the observations of the bulbs and percentage substrate coverage by the fungi most frequently isolated in the previous observations. The research showed that H2O2-Ag+ and fungicides used for soaking significantly limited the fungal development on bulbs and also on the substrate during the rooting period in the cold store and after they were placed in the greenhouse until the flowering.

Mid-term fertilisers and lime effect on grassland in the hilly-mountain region in BalkanOriginal Paper

Vladimir Zorniæ, Vesna Ðuroviæ, Mirjana Petroviæ, Sne¾ana Babiæ, Dalibor Tomiæ, Nedeljko Raciæ, Jasmina Milenkoviæ

Plant Soil Environ., 2025, 71(1):12-20 | DOI: 10.17221/347/2024-PSE

Although the effects of fertiliser addition and liming on semi-natural grassland productivity and biomass quality are well documented, less is known about how fertilisers change plant functional groups and mean ecological values. We researched the effects of liming (no lime and lime with 1 t/ha) and mineral fertilisers (control – no fertilisers, PK-P60K60, N20PK-N20P60K60, N80PK-N80P60K60, and N140PK-N140P60K60) for nine years on the Danthonia alpina Vest. grassland community. Based on Brown-Blanquet cover abundance, we calculated Shannon-Wiener evenness and abundance of plant functional groups (based on height, canopy structure, storage organs presence and flowering duration). We also researched Landolt’s ecological indicator values for nutrients, moisture, reaction, light, and temperature. Results revealed that fertilisers stimulated tall species with longer flowering duration. Shannon-Wiener evenness in control was 0.45, and N20PK increased to 0.71 but significantly decreased in treatment N140PK (0.25). Mean Landolt ecological value for nutrients and moisture increased while temperature dropped. The coverage of legumes and Landolt indicator value for nutrients increased because of the lime application, while the lime had no effect on Shannon-Wiener evenness and abundance of functional groups. Greater Shannon-Wiener evenness in treatments of PK and N20PK is a prerequisite for resistance to the effects of extreme climate events.

Biochar innovations for sustainable agriculture: Acidification and zinc enrichment strategies to improve calcareous soil fertility and wheat yieldOriginal Paper

Salih Demirkaya*, Coskun Gülser

Soil & Water Res., 2025, 20(2):105-118 | DOI: 10.17221/77/2024-SWR

Calcareous soils, typically characterized by low fertility, low organic matter and nitrogen content, and often deficient in phosphorus, zinc, and iron, as well as having low microbial activity, require the development of sustainable soil conditioners to improve fertility. To address these shortcomings and promote sustainable agriculture, biochar, especially with acidic character, may offer a promising solution. This study investigates the effects of modified biochar by H2SO4 and ZnSO4 on soil properties and wheat yield under field conditions. For this purpose, biochar (B), acidified biochar (AB), Zn enriched biochar (BZn), and acidified-Zn enriched biochar (ABZn) were applied to the field at two different doses (0.5 and 1.0%) together with the control treatment (Ck) without biochar application. AB1.0% was determined as the most effective treatment in decreasing soil pH (0.15 units), while B1.0% was determined as the most effective treatment in increasing organic carbon and cation exchange capacity, 13% and 32%, respectively. The effect of the treatments varied for specific nutrients. The highest antioxidant enzyme activities were found in acidified biochars where the lowest yields were obtained. Compared to the Ck, the highest catalase (CAT) (32%) was determined in ABZn1.0%, ascorbate peroxidase (APX) (56%) and glutathione peroxidase (GPX) (36%) were determined in ABZn0.5%, and superoxide dismutase (SOD) (28%) was determined in AB0.5%. The highest proline (PRO), with the least decrease in yield, was found in the AB1.0% application, which is 205% more than Ck. B and BZn treatments all increased the grain yield, and the highest increase was 20% in B1.0% when compared to the Ck.

Influence of straw, compost, and biochar on soil carbon and aggregates in ChernozemOriginal Paper

Yuhan Yuan, Chang Zhang, Yao Liang, Jingchao Yuan, Jianzhao Liu, Hongguang Cai, Jinjing Zhang

Plant Soil Environ., 2025, 71(2):148-160 | DOI: 10.17221/580/2024-PSE

Crop residue management is a major concern in agricultural ecosystems. These residues can be recycled into biochar and compost to efficiently promote soil organic carbon (SOC) storage in farmlands. However, the influences of straw and its derived materials on SOC (especially on humus fractions) in soil aggregates of varying sizes are largely unknown. To understand these effects, a nine-year field experiment was conducted on calcareous black soil, including five treatments: CK – no fertiliser; NPK – mineral nitrogen, phosphorus, and potassium fertiliser; NPKS – NPK + straw; NPKC – NPK + compost, and NPKB – NPK + biochar. Compared to CK and NPK, the NPKS and NPKC treatments resulted in a noticeable rise (P < 0.05) in the proportion of aggregates with > 0.25 mm size (R0.25), as well as in the mean weight diameter and geometric mean diameter at 0–20 cm depth. The NPKS, NPKC, and NPKB treatments significantly (P < 0.05) increased the contents of large macroaggregates (> 2 mm), small macroaggregates (2~0.25 mm), microaggregates (0.25~0.053 mm), and non-aggregates in the 0–20 cm soil layer, as well as the levels of SOC, humic acid carbon (HAC) and humin carbon (HUC). These treatments also significantly (P < 0.05) enhanced organic carbon storage in the topsoil (0~20 cm). The effects were more pronounced after NPKB treatment relative to NPKS. Compared to CK, the application of mineral fertilisers alone and combined with organic materials significantly (P < 0.05) improved crop yields. The study’s results indicate that the application of organic materials from corn significantly (P < 0.05) enhanced both soil quality and corn yield, with straw-derived biochar showing better effects on soil carbon sequestration.

Assessment of cadmium toxicity in buffaloes grazing on forages cultivated in diverse irrigated soils: a comprehensive analysisOriginal Paper

Zafar Iqbal Khan, Menal Hamdani, Kafeel Ahmad, Asma Ashfaq, Shehnaz Fatima, Saqib Bashir, Ijaz Rasool Noorka, Hafsa Memona, Saif Ullah, Shahzad Akhtar, Mahmoud F. Seleiman, Nawab Ali

Plant Soil Environ., 2025, 71(3):202-212 | DOI: 10.17221/42/2025-PSE

This study investigated the potential risks of cadmium (Cd) toxicity in buffaloes grazing on forages that were cultivated in soils irrigated by various sources of wastewater. The absorption of trace metals (TM) by plants and their subsequent entry into the food chain pose a significant danger to grazing animals through the accumulation of contaminated fodder. The mean concentration of Cd in the water ranged from 0.18–1.78 mg/L, in the soil 0.63 to 1.87 mg/kg, in the forage 0.20 to 1.32 mg/kg, and in the blood 0.26 to 1.98 mg/L. Among all three sites, canal water (CW Site I), groundwater (GW Site II), and sewage water (SW Site III), the concentration factor (CF) values were below the threshold of 1 (CF < 1), indicating the nominal environmental concern regarding Cd contents in the soil-plant interface. In addition, a prominent variation was noticed in the transfer factor (TF) of Cd across different sites, with the highest TF observed in Avena sativa L. at SW Site III (0.8) and the lowest in Pennisetum glaucum L. at CW Site I (0.27). Furthermore, the hazard quotient (HQ) exhibited a substantial fluctuation, ranging from 0.39 to 2.6, reflecting varying levels of potential health risks associated with Cd exposure. The outcomes of the current investigation suggested that the prominent increase in Cd levels was recorded at sampling site SW Site III due to continuous wastewater irrigation. Prolonged exposure and increased Cd absorption in buffaloes grazing at these sites could have harmful long-term effects on their health. The correlation analysis between Cd concentrations in water, soil, forage, and blood showed a positive but non-significant relationship for water-soil, soil-forage, and forage-blood interactions. This highlights the need for further research to assess the long-term implications of wastewater irrigation on heavy metal accumulation in livestock.

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