Fulltext search in archive



« advanced mode »

 previous    ...   56   57   58   59   60  61   62   63   64   65   ...    next 

Results 1771 to 1800 of 5824:

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.

Physicochemical and antioxidant evaluation of watercress (Rorippa nasturtium aquaticum L.) leaf extractsOriginal Paper

Edgar Daniel Cabrera-Domínguez, Jesús Rodríguez-Miranda, Reyna Nallely Falfán-Cortés, Enrique Ramirez-Figueroa, Juan Gabriel Torruco-Uco, Betsabé Hernández-Santos

Czech J. Food Sci., 2025, 43(4):274-282 | DOI: 10.17221/139/2023-CJFS

This research aimed to evaluate the type of solvent (80% methanol, ethanol, and water), solute/solvent ratio (1 : 10 and 1 : 15 w/v), maceration time (0 h, 24 h and 7 d) and stage of leaf maturity [vegetative (VW) and generative (GW)] on the physicochemical and antioxidant properties of watercress leaf extracts. The leaf was characterised by determining the chemical composition, the phytochemical profile, and the colour. The GW presented the highest moisture content [93.25 g·(100 g)–1], carbohydrates [70.74 g·(100 g)–1], and lightness (L* = 59.66), and the presence of alkaloids, phytosterols, phenols, and flavonoids. VW had the highest protein content [26.52 g·(100 g)–1] and the lowest presence of phytochemicals. The best solvent for the extraction was distilled water at a 1 : 15 w/v ratio, GW at 24 h rest centrifuged at 2 300 × g for 15 min, obtaining the highest values of phenols [2 077 mg GAE·(100 g)–1], of dust and an inhibition power of 85.09% by the 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) radical cation (ABTS+) radical method. Therefore, cress leaves in the generative stage can be considered a potential source of bioactive compounds, and using water as an extracting agent for these compounds makes it a viable and economical method to be used in the food industry, and in addition, to be friendly to the environment.

Sensory properties of pork sausage after sea buckthorn extract additionOriginal Paper

Marek Bobko, Luká¹ Jurèaga, Alica Bobková, Al¾beta Demianová, Melina Korèok, Judita Lidiková, Miroslav Kroèko, Ondøej Buèko, Andrea Mendelová, Terézia ©vecová, Andrea Mesáro¹ová

Czech J. Food Sci., 2025, 43(5):320-325 | DOI: 10.17221/11/2025-CJFS

The meat industry is actively trying to replace synthetic antioxidants with natural counterparts. Sea buckthorn is an excellent source of polyphenols and its high antioxidant properties. Various authors tested the antioxidation effect of sea buckthorn on lipids in meat products. The problem of sea buckthorn addition to food is its effect on sensory parameters. Our study incorporated sea buckthorn extract into pork sausage, stored for 21 days, and observed sensory properties and their changes. We mechanically measured the pH, colour, and textural properties of pork sausage samples with minimal variability observed. Also, sensory analysis by informed panellists was conducted on multiple storage days. Sensory evaluation revealed significant deterioration of sensory quality. Sea buckthorn remains an interesting option for the meat industry. However, further multidisciplinary research is still needed.

Comparative study of physicochemical and hedonic response of ginger rhizome and leaves enriched pattiesOriginal Paper

Saira Tanweer, Muhammad Farhan Jahangir Chughtai, Saadia Zainab, Tariq Mehmood, Adnan Khaliq, Syed Junaid-Ur-Rahman, Rabia Iqbal, Atif Liaqat, Samreen Ahsan, Zulfiqar Ahmad, Aamir Shehzad

Czech J. Food Sci., 2021, 39(5):402-409 | DOI: 10.17221/261/2020-CJFS

The present investigation was an attempt to compare the phytoceutic potential of ginger rhizome and ginger leaves of the Suravi variety. For this purpose, both rhizome and leaves were dried and used for the preparation of patties. After that, patties were assessed for colour tonality, texture, total phenolic content and hedonic response such as colour, taste, flavour, texture and overall acceptability. The results depicted that L* and b* values changed significantly during the storage interval; however, b* value was also affected by treatments whilst L* and a* values did not impart any momentous effect. For texture, the highest value was observed for patties with ginger rhizome powder (0.067 ± 0.0032 N) followed by patties with ginger leaf powder (0.060 ± 0.0029 N) and then control patties (0.057 ± 0.0026 N). For total phenolic content (TPC), maximum phenolic contents were observed as 84.80 ± 3.31 mg GAE 100 g-1 in treatment T2 followed by 75.68 ± 2.95 mg GAE 100 g-1 in T1 and 61.70 ± 2.41 mg GAE 100 g-1 in T0. For hedonic response, all the parameters changed significantly during the storage interval; however, flavour, taste and overall acceptability changed momentously with treatments. The findings of the current investigation demonstrated that ginger leaves have a higher antioxidant potential as compared to the ginger rhizome and control patties, and they should be incorporated into food products.

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.

Influence of the tea polyphenol treatment on the colour, texture, and antioxidant activity in fresh-cut potatoesOriginal Paper

Yang Gao, Yu-Chao Zhao, Cheng-Kun Jiang, Chao-Nan Kan

Czech J. Food Sci., 2025, 43(1):29-36 | DOI: 10.17221/139/2024-CJFS


This study evaluated the quality changes of fresh-cut potatoes during storage by treating with different concentrations of tea polyphenol (0.125, 0.25, 0.5, and 1.0 g·L–1). During the storage, the ∆E value (colour change of fresh-cut potatoes), browning degree, chewiness, malondialdehyde (MDA) content, polyphenol oxidase (PPO) and peroxidase (POD) activity gradually increased. But the hardness and elasticity first increased and then decreased. Compared with the control, the tea polyphenol treatment could effectively inhibit the increase of ∆E value, browning degree, chewiness, MDA content, PPO and POD activity of potato slices, and delay the decrease of slice hardness, elasticity and brittleness in the later storage period. Among them, 0.25 g·L–1 tea polyphenol has the best effect. It can maintain the colour of fresh-cut potatoes, inhibit the increase of PPO and POD active enzyme activities, reduce the production of browning substances, and improve the storage quality of fresh-cut potatoes.

Association between conventional semen variables and sperm freezability in ramsOriginal Paper

Aizhan Makhanbetova, Filipp Georgijeviè Savvulidi, Martin Ptáèek, Lucie Langerová, Beybit Kulataev, Nurlan Malmakov

Czech J. Anim. Sci., 2025, 70(3):93-101 | DOI: 10.17221/185/2024-CJAS


Assessments of routine ejaculated samples were used to evaluate the conventional semen variables (sperm motility, semen volume, sperm concentration) as initial decision-making criteria to freeze or not to freeze. However, the association of these attributes to the cryotolerance of ram sperm has not been adequately studied yet. The aim of this study was therefore to analyse if the semen volume, sperm motility and concentration can be used to predict post-thaw ram sperm motility. Additionally, in the present study we tested if the order of ejaculate sampling (first versus second, within a single collection session) and the breed of rams influenced cryopreservation outcomes.

Brinjal shoot and fruit borer (Leucinodes orbonalis Guenee) seasonal activity and association with abiotic factorOriginal Paper

Prince Mahore, Nikki Bhardwaj, Pradyumn Singh, Mitesh Makwana, Dheerendra Mahor, Naveen, Neeraj Kumar, Sitaram Seervi, Sonu Sharma

Plant Protect. Sci., 2025, 61(2):183-190 | DOI: 10.17221/3/2024-PPS

The study has been conducted at Research Farm, College of Agriculture, Gwalior (M.P.), in the summers of 2021 and 2022. In the summers of 2021 and 2022, the crop was first infested by the shoot and fruit borer on the 10th and 13th standard meteorological week (SMW). The infestation persisted until the 23rd and 24th SMW, respectively. During the first year, the 15th SMW had the highest infestation rate for shoot damage, 15.76%, while the 18th SMW had the highest infestation rate for shoot damage, 15.07%, in the second year. Whereas fruit damage per cent is calculated based on number and weight, and its peak per cent infestation was noted on the 22nd SMW with 31.67% based on number, 30.12% based on weight during the first year, and 30.34% based on number and 29.95% based on weight during the second year, which was noted on the 23rd SMW. There was a significant positive correlation between maximum temperature and shoot damage percentage (r = 0.62) and minimum temperature and fruit damage percentage based on number (r = 0.87) and weight (r = 0.88) during the first year of study. However, during the first year of the study, there was a negative association (r = –0.68) between morning relative humidity and shoot damage per cent. The following year's research revealed a highly significant positive link between maximum temperature, minimum temperature, and evaporation with fruit damage (%) based on the number (r = 0.64, 0.92, and 0.82) and based on weight (r = 0.63, 0.92, and 0.82), respectively.

Harnessing chlorophyll and canopy reflectance indices relationship for grain yield, protein and starch content in maize cultivars under different nitrogen treatmentsOriginal Paper

Muhoja Sylivester Nyandi, Ebenezer Ayew Appiah, Petér Pepó

Plant Soil Environ., 2025, 71(8):525-533 | DOI: 10.17221/633/2024-PSE

Crop production faces increased climate change and land degradation stresses, compromising global food security with the growing population. Maize (Zea mays L.) is a versatile crop used for food, feed, and raw materials, contributing significantly to global food systems. Abiotic stresses like drought and soil fertility limit its production. Fertilisation is an amelioration technique that optimises maize growth and yield by maintaining optimum nutrition and leveraging nutrient deficiency conditions. Precision agricultural tools like chlorophyll meters are essential for non-destructive chlorophyll assessment and nitrogen status. An experiment conducted at the University of Debrecen evaluated the impact of nitrogen (N) fertilisation (0, 90, and 150 kg/ha) and three maize cultivars (P9610-FAO 340, DKC4590-FAO360, and GKT376-FAO360) on physiological parameters, namely: relative chlorophyll content (SPAD), normalised differences vegetation index (NDVI) and grain quality. Results showed that SPAD and NDVI positively correlated (P < 0.05) with grain quality and yield. Nitrogen application significantly influenced SPAD. Maize cultivars and N rates with higher chlorophyll content had maximum yield. Cultivar responses to nitrogen rates significantly (P < 0.05) varied by crop year. Higher SPAD and NDVI values were associated with higher protein content. Therefore, SPAD and NDVI values could be used to analyse the nutrient requirements of maize under field conditions to estimate grain yield.

Endophytic Streptomyces extend the vase life of Gerbera jamesonii L. by modulating antioxidant system and suppressing bacterial growthOriginal Paper

Wen Lin, Xi Wei, Ying Li, Muhammad Imran Ghani, Xiaojing Hu, Xiaoyulong Chen

Hort. Sci. (Prague), 2025, 52(3):224-236 | DOI: 10.17221/130/2023-HORTSCI

Gerbera flowers are the best-selling cut flowers worldwide owing to their attractive appearance. Nevertheless, one significant challenge for gerbera flowers is their relatively short vase life. Commercially, synthetic chemicals are used to prolong the vase life of flowers; however, they are not environmentally friendly, posing sustainability concerns. Therefore, we used different concentrations of the biocontrol spore suspension of Streptomyces exfoliatus FT05W and evaluated their effect on vase life, bacterial population, and different morphology and physiological indices of gerbera cut flowers, with the objective of determining the optimal concentration for maximum efficiency. The results revealed that all spore suspensions of S. exfoliatus FT05W (1 × 106 CFU mL) significantly extended vase life and were 4 days longer than the control. S. exfoliatus FT05W treatment also increased bottle life extension days, blossom diameter, and fresh weight, and maintained water balance. In addition, it decreased malondialdehyde (MDA) levels and relative electrolyte leakage (REL), leading to decreased oxidative stress. S. exfoliatus FT05W significantly increased antioxidant enzymes, including superoxide dismutase (SOD) activity, catalase (CAT) activity, peroxidase (POD) activity, soluble sugar (SS), and soluble protein (SP), compared to the control. Furthermore, it can effectively inhibit bacterial proliferation, resulting in a decline in colonies and a significant delay in the flower ageing process. The beneficial impacts of S. exfoliatus FT05W were most pronounced at a concentration of 1 × 106 CFU/mL. The findings of this research suggest that S. exfoliatus FT05W has great potential as a bio-fertiliser for cut flowers, as it is capable of addressing the challenges associated with flower cultivation.

Balancing quality and safety: Optimising drying and sodium metabisulphite use in low-fat desiccated coconutOriginal Paper

Indriati Cahyadewi, Waqif Agusta, Rumpoko Wicaksono, Tantry Eko Putri Mariastuty, Lusiana Kresnawati Hartono, Herdiarti Destika Hermansyah, Farah Nuranjani

Res. Agr. Eng., 2025, 71(3):130-142 | DOI: 10.17221/3/2025-RAE


Indonesia, as a leading coconut producer, generates a substantial amount of coconut pulp from coconut milk extraction, which can be further processed into low-fat desiccated coconut. However, the drying process induces browning, reducing its whiteness and overall quality. Sodium metabisulphite is commonly used to prevent browning, but excessive use raises health concerns. In this study, the optimisation of the drying temperature and sodium metabisulphite concentration was conducted to minimise the browning while maintaining the quality of low-fat desiccated coconut. Using Response Surface Methodology (RSM) with a Central Composite Design (CCD), responses such as the browning index (BI), whiteness index (WI), moisture content, yield, free fatty acids (FFAs), ash, fat, protein, total phenolic content (TPC), and crude fibre were examined. The results showed that both the drying temperature and sodium metabisulphite concentration significantly influenced the physicochemical properties. The optimal conditions were identified at 62.505 °C and 380.059 ppm sodium metabisulphite, resulting in a whiteness index of 87.219, browning index of 5.1025, yield of 43.125%, moisture content of 2.3%, and free fatty acid content of 4.45%. These findings highlight an effective strategy for reducing the additive dependency while maintaining the physicochemical quality of low-fat desiccated coconut.

Mechanisms of overwintering frost tolerance in alfalfa roots based on 4D-Label-free quantitative proteomicsOriginal Paper

Yajun Ma, Yu Zhang, Qiaoxian Zhang, Guo Sun, Yajun Yan, Chuan Wang, Wenbin Mian, Tianhui Yang, Ting Gao

Czech J. Genet. Plant Breed., 2025, 61(4):181-192 | DOI: 10.17221/27/2025-CJGPB


The present study investigates the differential protein expression levels between the frost-tolerant variety Qingda No.1 and the frost-sensitive variety Gannong No.9. The analysis was conducted using 4D-Label-free quantitative proteomics technology, with the samples collected prior to and after overwintering. The results showed that the protein expression of Qingda No.1 changed more significantly during the overwintering process, with 451 differentially expressed proteins (DEPs) being identified, of which 224 were up-regulated and 227 down-regulated. In contrast, the protein expression of Gannong No.9 differed from that of alfalfa roots of the frost-sensitive variety, with 204 DEPs being identified, of which 93 were up-regulated and 111 down-regulated. The Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis showed that the phenylpropanoid biosynthesis pathway was significantly enriched in both groups. Furthermore, enzymes such as phenylalanine ammonia-lyase (PAL), cinnamic acid 4-hydroxylase (C4H), and chalcone isomerase (CHI) were significantly up-regulated in the freezing-tolerant varieties. Protein interaction network analysis revealed the synergistic regulation mode of DEPs. The present study elucidated the metabolic adaptive mechanism of overwintering in alfalfa roots at the protein level, thus providing a theoretical basis for the selection and breeding of frost-tolerant varieties.

Credit evaluation and rating system for farmers’ loans in the context of agricultural supply chain financing based on AHP-ELECTRE IIIOriginal Paper

Shangjia Guo, Rong Niu, Yanbo Zhao

Agric. Econ. - Czech, 2024, 70(11):541-555 | DOI: 10.17221/434/2023-AGRICECON

Farmers, often vulnerable within the agricultural supply chain, frequently encounter difficulties accessing and affording loans. This study introduces an innovative credit risk evaluation framework for farmers tailored to the agricultural supply chain. It includes three key aspects: farmers’ credit characteristics, the operational status of the agricultural supply chain, and overall credit conditions. Initially, the analytic hierarchy process (AHP) was used to assign weight coefficients to indicators. Then, the Elimination et Choix Traduisant la Réalité III (ELECTRE III) model was employed to determine farmers’ credit ratings. To demonstrate the impact of the agricultural supply chain on microfinance, the model’s effectiveness was then tested with 398 microfinance survey responses from Fuping County (World Dairy Goat Industry Development Demonstration Zone), Shaanxi Province, China, and its accuracy was further verified using BP neural network analysis. The results demonstrated the model’s proficiency in assessing farmers’ credit levels within the agricultural supply chain, which can aid in the resolution of various credit assessment and rating challenges. Furthermore, this study offers valuable insights into the integration of multi-criteria decision-making and machine-learning methods.

Selected measurements of pork carcass geometry and association with slaughter valueOriginal Paper

Piotr Janiszewski, Dariuzs Lisiak, Karol Borzuta, Eugenia Grze¶kowiak, Piotr ¦lósarz

Czech J. Anim. Sci., 2025, 70(2):43-54 | DOI: 10.17221/161/2024-CJAS


The aim of the research was to use a vision technique to assess the relations between anatomical pork carcass traits, carcass geometry and slaughter value. The measurements in the experiment were performed on 128 selected pork carcasses. The 3D image of the carcass was assessed, especially its shape. Based on the carcass curvatures the correlation coefficients for these surfaces and slaughter value traits were calculated. The possibility of using the external dimensions and geometry of pork carcass for the accurate estimation of meatiness and the share of primal cuts using the technique of acquiring carcass images in a 3D configuration was confirmed. This can be useful in improving the classification methods of the SEUROP system. In the fattener breeding process the ham size increased whereas the carcass front decreased. That was probably why the carcass width or surface size correlation with the meat content were positive on the carcass back and negative on the shoulder.

Studies on some engineering properties of breadfruit (Artocarpus altilis) starch flourOriginal Paper

Waliu Adewale Adebayo, Mercy Oluwakemi Ademiju, Dahunsi Olamide Fajobi

Czech J. Food Sci., 2025, 43(2):105-111 | DOI: 10.17221/40/2023-CJFS

This research work evaluated some engineering properties of breadfruit starch flour following standard procedures with the aim of providing engineering data that would help its usage in food processed industries. Starch was extracted from matured breadfruit fruits, modified using acid and engineering properties were examined following standard procedures. Results of moisture contents, loose and packed bulk densities, density ratio and porosity were ranged from 8.23–9.13% dry basis (DB); 0.44–0.51 g·mL–1; 0.60–0.66 g·mL–1; 70.01–80.14% and 19.87–29.99%, respectively. Similarly, Carr index values ranged from 19.44–30.61% and Hausner ratio values ranged from 1.25–1.43, indicating that the flour samples investigated had poor (native), fair (modified) and good (potato) flow properties, using Carr index standard. Amylose, amylopectin and amylose-amylopectin ratio contents values ranged from 21.52–29.77%; 70.23–78.48% and 0.28–0.42%, respectively. Also, the flour samples thermal properties values using Differential Scanning Calorimeter (DSC) ranged from 106.4–129.09 °C; 31.93–78.36 °C; 106.2–175.75 °C; 214.90–278.6 J·g–1; 35.5–148.82 °C; 2.26–10.95 J·g–1·K–1; 0.305–3.0 (×10–6) W·m–1· °C–1, and 0.095–1.32 (×10–6) m2·s–1 for peak temperature, onset temperature, end temperature, enthalpy, temperature range, specific heat capacity, thermal conductivity and thermal diffusivity, respectively. Viscosity values as influenced by concentration and temperature ranged from 25.8–149 mPas for native starch and 41.9–109.6 mPas for modified starches. Hence, this research work provides engineering data that would help in process control, process design and bulk handling of breadfruit starch flour so as to promote its usage in food process industries.

Understanding societal priorities for forest ecosystem services: Survey insights from 'Forestry Days 2024' in SlovakiaOriginal Paper

Zuzana Sarva¹ová, Jozef Pajtík, Zuzana Dob¹inská

J. For. Sci., 2025, 71(4):195-204 | DOI: 10.17221/7/2025-JFS

Understanding society's demand for forest ecosystem services (FES) is crucial for effective forest management and the development of supportive instruments, such as payments for ecosystem services (PES). This study surveyed visitors at 'Forestry Days 2024' in Slovakia through face-to-face questionnaires, capturing their views on FES and necessary management changes. Results show that regulating services and biodiversity are prioritised over cultural and provisioning FES. Respondents indicated a clear need for changes in forest management to reflect their FES preferences. Notably, perceptions of specific FES varied by gender, age, forestry background, and forest ownership but not by residence type. Public PES were considered the most acceptable policy for enhancing FES management, providing valuable insight for aligning public preferences with sustainable practices in Slovakia.

Effects of two protein levels on the performance of chicken males with different growth intensitiesOriginal Paper

Jan Tyl, Eva Tùmová, Darina Chodová

Czech J. Anim. Sci., 2025, 70(5):194-201 | DOI: 10.17221/44/2025-CJAS

At present, genetic selection programs produce chicken genotypes with different growth intensities, which might have variable requirements for dietary protein. The objective of this study was to compare the response of three different genotypes to two levels of crude protein in feed mixtures. Cockerels of fast-growing Ross 308, medium-growing Hubbard JA 757 and slow-growing ISA Dual chickens were used in the study. Each genotype was fed diets that differed in protein level: the control group (C) received commercial feed, and the experimental group was fed a diet with a 6% lower protein content (LP). The daily weight gain (DWG) and feed conversion ratio (FCR) were significantly affected by the interaction of genotype and feed protein level. A greater percentage of DWG depression was observed in fast-growing cockerels than in medium-growing cockerels (10% and 6%, respectively), whereas the percentage of slow-growing cockerels negligibly increased (2%). A low-protein diet impaired the FCR only in fast-growing birds (–5%), whereas in the medium- (–2%) and slow-growing groups (+2%), the differences were not significant. Carcass composition significantly influenced only genotype and thigh meat pH. In terms of meat colour, significant interactions revealed that in fast-growing Ross 308 chickens, redness and yellowness did not differ according to diet group; however, in both genotypes with slower growth, significantly greater redness and yellowness were detected in the low-protein diet group than in the control group. The results indicate that genotypes with slower growth have lower protein requirements for growth performance, but lower diet protein has an effect on physical meat quality parameters in these genotypes.

Uterine angiomyofibroblastoma in a domestic cat: A need of precise diagnosis for proper perioperative managementCase Report

TU Kim, JS Park, JH Yim, WJ Kim, SB Hong, YR Jung, SK Choi, SM Baek, JK Park

Vet Med - Czech, 2025, 70(5):177-183 | DOI: 10.17221/88/2024-VETMED


Angiomyofibroblastoma (AMFB) is rarely reported in humans as well as domestic animals, especially in the female genital tract. This painless tumour is characterised by the proliferation of spindle or ovoid tumour cells with myofibroblastic differentiation, which often cluster around thin-walled blood vessels. This report presents a case of feline AMFB for the first time. Preoperative abdominal radiography demonstrated an enlarged uterus with the dorsolateral displacement of the ovaries, and transabdominal ultrasonography showed an enlarged uterus with diffuse hypoechoic areas. The resected uterus showed a firm texture with a grey to brownish colour. A microscopic examination revealed proliferation of well-differentiated neoplastic spindle cells on a background of abundant fibrous stroma containing numerous blood vessels. Myxoid degeneration and vascular extravasation were not observed. The neoplastic cells were diffusely immunopositive for α-SMA and vimentin and focally positive for desmin (in the perivascular areas). AMFB is rare in veterinary medicine and the feline uterine AMFB observed in the present case had not been previously reported. Although previously reported as a safe, benign tumour, a surgical procedure of a large AMFB in small animals without proper diagnosis may become life-threatening.

Valorisation of dragon fruit peel in drinking yoghurt: Development, physicochemical, proximate, functional properties, and shelf-life evaluationOriginal Paper

Maryam Saeed Hafiz, Karunanayaka Mudiyanselage Imayuru Ushada Karunanayaka, Kartika Nugraheni, Ganwarige Sumali Nivanthi Fernando

Czech J. Food Sci., 2025, 43(3):179-186 | DOI: 10.17221/21/2025-CJFS

Dragon fruit peel (Hylocereus spp.), often discarded as waste has gained interest for its anti-aging, anti-inflammatory, and anti-diabetic properties. Peels make up to 22–44% (w·w–1) of the fruit's weight and this waste could make a significant effect on the environment. Therefore, this study aimed to develop a drinking yoghurt using dragon fruit peel extract as a natural colorant and evaluate its physicochemical, proximate, functional, and shelf-life properties. The sugar concentrations (4, 6, and 8% w·w–1) and incubation times (4, 6, and 8 h) were changed to optimise the product. Sensory evaluation by 30 semi-trained panellists using a 5-point hedonic scale identified 6% (w·w–1) sugar and an 8 h incubation as optimal. Compared to plain drinking yoghurt, the dragon fruit peel (DFP) drinking yoghurt showed higher crude fat (2.87%), fibre (0.72%), ash (0.66%), moisture (84.08%), total antioxidants (824.3 mg TE·100 g–1), flavonoids (0.22 mg QE–1·mL–1), and betalains content (0.0064 mg·mL–1). During storage, DFP yoghurt's pH declined, with minimal betalain loss, and it remained stable for three weeks at 4 °C without preservatives. This study demonstrates the potential of dragon fruit peel as a functional ingredient in yoghurt, offering nutritional and environmental benefits.

Immobilised Aspergillus niger lipase synthesises sn-1,3-dioleoyl-2-palmitoylglycerolOriginal Paper

Shanhui Chen, Renbin Liu, Dong Wang, Shiyou Li, Zhirong Yang

Czech J. Food Sci., 2025, 43(4):291-299 | DOI: 10.17221/143/2024-CJFS

sn-1,3-Dioleoyl-2-palmitoylglycerol (OPO) is a structural triglyceride with a specific distribution of fatty acids, which is an important component of breast milk fat and which can better promote the absorption of minerals and energy in infants. In this study, a lab-made immobilised Aspergillus niger lipase (IM-ANL), which is more economical than a commercial lipase, was used for hydrolysis to produce free fatty acids (FFA) and acidolysis interesterification to produce OPO. The enzyme was used for multiple purposes, reducing the cost of enzymatic production. The optimum conditions for hydrolysis were determined by experiments: the amount of IM-ANL enzyme dosage was 3%, the reaction temperature was 45 °C, and the reaction time was 48 h. The optimum conditions for acidolysis interesterification were as follows: the amount of IM-ANL enzyme dosage was 4%, the molar ratio of tripalmitin to oleic acid was 1 : 8, the reaction temperature was 55 °C, and the reaction time was 3 h. In this study, economical palm stearin and high oleic acid sunflower seed oil were selected as reaction raw materials, and the reaction temperature was moderate, the safety risk was low, the energy consumption was reduced, the process was more economical, and the economic value of high oleic acid vegetable oil was improved, which was conducive to the further promotion of OPO production.

Effects of PEG-simulated drought stress and selenite treatment on mineral nutrient homeostasis in wheat roots and shootsOriginal Paper

Feiyan Yu, Ying Wang, Xue Luo, Kaiwei Li, Jingwen Hou, Gaogao Dai, Huimin Yuan, Lianhe Zhang

Plant Soil Environ., 2025, 71(9):614-620 | DOI: 10.17221/300/2025-PSE

Drought stress severely impairs seed germination and early seedling establishment, and disrupts the uptake and distribution of essential mineral nutrients in plants. This study investigated the effects of polyethylene glycol (PEG)-simulated drought and Na2SeO3 application on the accumulation and redistribution of phosphorus (P), potassium (K), calcium (Ca), sulphur (S), magnesium (Mg), iron (Fe), zinc (Zn), copper (Cu), and manganese (Mn) in wheat roots and shoots. Under PEG-simulated drought, increasing PEG concentrations resulted in a progressive decline in nutrient concentrations in both roots and shoots, with significant reductions in K, Ca, S, Zn, and Mn in roots, and K, Ca, Mg, and Mn in shoots. However, Na2SeO3 application mitigated these adverse effects by enhancing nutrient redistribution during early seedling growth. Specifically, under 15% PEG-simulated drought stress, Na2SeO3 treatments significantly increased shoot K, Mg, Fe, and Cu concentrations, highlighting selenium’s role in facilitating the translocation of these key elements. These results demonstrate that Na2SeO3 effectively mitigates drought-related nutrient imbalances and promotes ion remobilisation from germinating seeds to developing roots and shoots under water-deficient conditions.

Multi-year study monitoring the mercury content in the tissues of cattle sampled in the Czech Republic between 2014 and 2023Original Paper

M Svoboda, V Vlasakova, D Harustiakova, J Illek, A Staffa, J Vasek, K Novotna Kruzikova, J Cahova, Z Svobodova

Vet Med - Czech, 2025, 70(9):307-312 | DOI: 10.17221/34/2025-VETMED

Analyses of mercury concentrations in the muscle, liver and kidneys of cattle were conducted in the Czech Republic during the period from 2014 to 2023. The average mercury content in muscles, livers, and kidneys of calves was 0.000 5 ± 0.000 0 mg.kg–1, 0.002 7 ± 0.000 5 mg.kg–1, and 0.004 1 ± 0.000 8 mg.kg–1, respectively. In fattening cattle, the average mercury content in muscles, livers and kidneys was 0.000 5 ± 0.000 0 mg.kg–1, 0.002 1 ± 0.000 2 mg.kg–1 and 0.004 9 ± 0.000 3 mg.kg–1, respectively. In cows, the average mercury content in muscles, livers and kidneys was 0.000 5 ± 0.000 0 mg.kg–1, 0.002 3 ± 0.000 1 mg.kg–1 and 0.006 9 ± 0.000 3 mg.kg–1, respectively. The maximum residual limit for human consumption was exceeded in 10 kidney samples (3 calves, 6 cows, 1 fattening cattle) and 1 liver sample (calf). In all age categories, the highest mercury concentrations were found in the kidneys, lower in the livers, and the lowest in the muscles. When comparing the age groups, significantly higher mercury concentrations were observed in the kidneys of cows than in calves and fattening cattle. It can be concluded that there is still a need for further monitoring of mercury concentrations in cattle tissues in the Czech Republic.

Coagulation profile in bitches with pyometra: Standard tests and thromboelastographyOriginal Paper

A Ramesova, K Machackova, I Vanova, M Lacinova, A Bartoskova, R Novotny, R Vitasek, K Rehakova, J Doubek

Vet Med - Czech, 2025, 70(11):408-416 | DOI: 10.17221/16/2025-VETMED

This study aimed to determine coagulation changes in bitches with pyometra based on a series of coagulation tests and thromboelastography (TEG), and to assess the incidence of disseminated intravascular coagulation (DIC). Eighteen bitches with pyometra and thirty-four control bitches were examined. Haematological, biochemical, and following haemostasis parameters were measured, including: prothrombin time (PT), activated partial thromboplastin time (aPTT), antithrombin activity (AT), and levels of fibrinogen (FBG), d-dimers (DD), tissue factor (TF), plasminogen (PLG), tissue plasminogen activator inhibitor 1 (TPAI-1), and thromboelastography. DIC was considered present if three or more of these parameters were abnormal: platelet count (<153 × 109/l), PT (>8.1 s), aPTT (>25.5 s), FBG (<0.6 g/l), DD (>0.2 mg/l), and AT (<107%). Significant differences were found in the PT, aPTT, FBG, DD, TPAI-1, clotting time, α-angle, and maximal amplitude. According to our scoring system, two patients were DIC positive. The study found alterations in several coagulation tests and hypercoagulable TEG tracings in bitches with pyometra, which point to excessive activation of coagulation, delayed fibrinolysis, and the presence of DIC. No patient bled abnormally, which may suggest that DIC is not overt in the majority of pyometra patients.

Quantitative and qualitative changes in the green mass protein of white lupin during the growing seasonShort Communication

Eva Straková, Pavel Suchý

Plant Soil Environ., 2025, 71(11):820-828 | DOI: 10.17221/334/2025-PSE

The aim of the study was to assess the quantitative and qualitative changes in crude protein of the white lupin (Lupinus albus L.) green mass during the growing season in stands of three cultivars of white lupin (ZULIKA, AMIGA, DIETA), intended for feeding purposes as protein roughage, when grown under the same soil and climatic conditions in the Czech Republic. Changes in the crude protein and amino acid content were monitored during the growing season from the 9th to the 18th week of stand age. Changes in the crop dry weight were characterised by a statistically significant (P ≤ 0.05) decrease in crude protein from the 9th to the 15th week of stand age (ZULIKA 203.50–176.82 g/kg, AMIGA 190.58–161.59 g/kg, DIETA 201.41–175.84 g/kg). In the following period, during the maturation of lupin pods, from the 15th to the 18th week, the change in the crude protein content of the green matter was not statistically significant (ZULIKA 176.82–162.12 g/kg, AMIGA 161.59–150.95 g/kg, DIETA 175.84–175.24 g/kg). For most of the amino acids studied, a decrease in their content in the dry weight of the green matter was demonstrated from the 9th to the 15th week, with a subsequent statistically significant (P ≤ 0.05) increase from the 15th to the 18th week of stand age. Interesting differences were observed in the arginine content, which showed a statistically significant increase (P ≤ 0.05) during the growing season (ZULIKA 7.93–16.03 g/kg, AMIGA 6.88–13.04 g/kg, DIETA 7.56–17.45 g/kg). Changes in the dry weight of the crop in the crude protein and amino acid content can be considered characteristic of lupin crops because of the identical evidence in all three white lupin cultivars studied.

Forestry violations as a global issue of legal regulation in the field of forest control and supervision: the Krasnodar territory and the Republic of Bashkortostan case studyOriginal Paper

Radmir Iksanov, Olga Khalikova, Igor Vladimirov, Ravil Gizzatullin, Regina Baiturina, Vitaliy Kovshov, Aigul Selezneva, Sofya Khasanova

J. For. Sci., 2021, 67(6):272-284 | DOI: 10.17221/99/2020-JFS

Control and supervision activities in the field of forest management are a type of activity of state authorities to detect, prevent forest violations. The purpose of this study is to analyse the dynamics and nature of violations in the forest sector on the example and in comparison of such regions of Russia as the Krasnodar territory and the Republic of Bashkortostan. The research methodology is selected taking into account the characteristics of the object under study. With the assistance of employees of the environmental inspectorate, search operations were organized in the areas where the greatest amount of forest damage occurs in the studied regions. The authors concluded that one of the reasons for the existing problems is the lack of interest of the state in the development of this sector of economy. The paper focuses on specific types of forest violations and the problems of their prevention. The authors believe that illegal logging belongs to the most common and socially dangerous forest violations. The article concludes that when adopting new regulations for control and supervisory activities in the field of forest management, the legislator must take into account requirements of administrative reform, regulatory guillotine, and risk-based approach.

Enhancing rheological properties of dough and quality of potato fibre-enriched breadOriginal Paper

Omar Saleh, Hossam S. El-Beltagi, Abdelrahman R. Ahmed, Hefnawy Taha, Haiam O. Elkatary, Abdalla El‐Hadary, Hoda A.S. Farag, Mahmoud Sitohy, Ahmed Mahmoud Ismail, Ali Osman

Czech J. Food Sci., 2025, 43(6):462-469 | DOI: 10.17221/29/2025-CJFS

This study investigates the effect of varying concentrations of potato fibre (PF) (1, 2, and 3%) on wheat flour (WF) dough rheological properties and the resultant pan bread quality. Chemical analysis, physical characteristics (weight, loaf volume, and specific volume), and colour attributes were estimated to assess bread quality. The impact of PF on bread sensory evaluation was estimated. The addition of PF significantly affected the properties of the dough. Moreover, the data indicated a substantial increase in water absorption (P ≤ 0.05) from 57.2% for the control to 65.5, 73.3, and 77.6% with the addition of 1, 2, and 3% PF to WF, respectively. Protein, crude fibre, and ash levels significantly increased (P ≤ 0.05) with higher PF ratios. Moisture and carbohydrate contents were markedly reduced (P ≤ 0.05). The specific volume considerably decreased from 3.15 cm3·g–1 in the control to 2.9, 2.74, and 2.53 cm3·g–1 with the addition of 1, 2, and 3% PF to WF, respectively. All replacement samples exhibited no significant alterations (P ≤ 0.05) in L* values and substantially (P ≤ 0.05) increased values of yellowness (b*) in all fortified samples relative to the control. Sensory assessments revealed that PF can be incorporated into WF at concentrations of 1% and 2% without compromising the overall acceptability of bread compared to the control.

Cerebellar hypoplasia in an Amur leopard cat (Prionailurus bengalensis euptilura) with feline panleukopenia virus infectionCase Report

JH Han, JS Oh, SY Ahn, J Kim, DN Lee, YD Suh, DY Kim, J Yoon, SC Yeon

Vet Med - Czech, 2025, 70(12):452-459 | DOI: 10.17221/29/2025-VETMED


Cerebellar hypoplasia caused by feline panleukopenia virus (FPV) is well documented in domestic cats. Still, it remains unreported in wild felid species, including the Amur leopard cat (Prionailurus bengalensis euptilura). Understanding the impact of such viral diseases on wild populations is crucial for advancing conservation efforts and protecting wildlife. An orphaned Amur leopard cat exhibiting idiopathic ataxia was rescued. Initial diagnostics, including physical examination, radiography, and blood analysis, yielded no remarkable findings, though its clinical signs indicated an underlying neurological problem. Subsequent real-time polymerase chain reaction tests detected FPV. Magnetic resonance imaging (MRI) revealed brain lesions, including reduced cerebellar parenchyma and cerebrospinal fluid occupying the space where the cerebellum should be located. These findings suggested cerebellar hypoplasia caused by in utero FPV infection. The Amur leopard cat was euthanised owing to its permanent disability, and the necropsy confirmed a markedly shrunken cerebellum. At the same time, histopathology identified decreased cellularity of the molecular and granular layers of the cerebellar cortex. These results coincided with the MRI findings. This report suggests that cerebellar hypoplasia caused by FPV can occur in wild felid species.

Selection of suitable reference genes in Paulownia fortunei (Seem.) Hemsl. under different tissues and abiotic stresses for qPCR normalizationOriginal Paper

Jiang Su, Kanghua Xian, Chuanming Fu, Jinxiang He, Baojun Liu, Ningzhen Huang

Czech J. Genet. Plant Breed., 2023, 59(4):205-218 | DOI: 10.17221/72/2022-CJGPB

By choosing appropriate candidate reference genes (CRGs) and standardizing qPCR data, more accurate experimental data can be obtained. Herein, the expression stability of alpha-tubulin1 (TUA1), beta-tubulin (TUB), beta-tubulin 1 (TUB1), beta-tubulin 5 (TUB5), actin 1 (ACT1), actin 97 (ACT97), molecular chaperone dnaj (DNAJ), adenine phosphoribosyl transferase (APT), and histone H4 (HIS4) genes from Paulownia fortunei (Seem.) Hemsl. under different experimental conditions (different tissues, drought, salinity, Cd, and Cr treatments) was assessed with four statistical tools: RefFinder, BestKeeper, NormFinder, and geNorm. Notably, TUA1 and TUB5 were identified as CRGs for different tissues, ACT97 and TUB1 for drought treatment, ACT97 and APT for salinity treatment, TUB1 and ACT97 for Cd treatment, and DNAJ, TUB1 and TUB5 for Cr treatment. Furthermore, the results of “total” group, V4/V5 > 0.15 and V5/V6 < 0.15 revealed that the CRGs or gene combinations, which could meet all the test conditions, were not easy to identify. To further verify the reliability of CRGs, the expression levels of paulownia fortunei cellulose synthase A catalytic subunit2 (PfCesA2) and paulownia fortunei glutathione reductase (GR) genes were analysed. The expression patterns were different when the unstable CRGs were used for normalization compared to when the stable CRGs and combination were used for normalization. This study will lay a foundation for study on the expression levels of key genes from P. fortunei seedlings.

The role of arbuscular mycorrhizal fungi in refining plant photosynthesis and water status under drought stress: a meta-analysisOriginal Paper

Murugesan Chandrasekaran

Plant Soil Environ., 2024, 70(8):502-508 | DOI: 10.17221/27/2024-PSE

Due to increased climate change, crop productivity worldwide is in danger. Drought stress is considered one of the major environmental factors in relation to world food security. Previous studies showed that arbuscular mycorrhizal fungi (AMF) inoculation alleviates drought stress in various plants. However, whether AMF inoculation efficiency is based on gas exchange or water status and whether the effects differ among plants and AMF species remain unclear. To evaluate the effect of AMF on drought stress alleviation, a meta-analysis was conducted based on random-effect models accounting for effect size variation. Results revealed that photosynthetic rate had the highest effect size among gas exchange traits compared to stomatal conductance and transpiration rate. Our results also showed a significant positive impact on relative water content, water potential, and water use efficiency in AMF-inoculated plants compared to non-inoculated plants. Furthermore, among AMF species, Funneliformis mosseae, followed by Rhizophagus irrgularis, was an efficient AM fungi for drought stress alleviation. Therefore, this study suggests that a higher water use efficiency supports water transport to the leaf surface and keeps the stomatal opening, enhancing photosynthetic responses.

Cytospora tristicha (De Not.) Mlèoch comb. nov., a lesser-known pathogen of wild rosesOriginal Paper

Patrik Mlèoch, Michaela Sedláøová

Plant Protect. Sci., 2025, 61(1):56-65 | DOI: 10.17221/122/2024-PPS

Stem canker of Rosa pendulina, collected in south-eastern Switzerland (canton of Graubünden) in August 2022, was studied in details. The causal agent of the disease was first identified as Valseutypella tristicha (Valsaceae, Diaporthales, Ascomycota) based on microscopic characteristics. The subsequent molecular analysis classified it into the genus Cytospora and indicated that it is identical with C. rosicola, described from China in 2020 based on the molecular data, however, V. tristicha is an older name than C. rosicola, so this has priority. Thus, a new combination of the name is proposed for this fungus.

 previous    ...   56   57   58   59   60  61   62   63   64   65   ...    next