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Results 601 to 630 of 2032:
Heatmap and PCA-based evaluation of bioactive compounds and volatile profiles in aronia fruits under different drying methodsOriginal PaperÇağlar KayaCzech J. Food Sci., 2025, 43(6):428-437 | DOI: 10.17221/106/2025-CJFS This study compares the bioactive compound contents and volatile profiles of products obtained from the ‘Nero’ variety of aronia (Aronia melanocarpa L.) fruits subjected to three different drying methods: freeze drying, vacuum drying, and hot air drying. Total phenolic content, total flavonoid content, and antioxidant activity were evaluated. The highest values were observed in the freeze-dried samples, with 67.9 mg GAE·g–1 dry weight (DW), 41.7 mg CE·g–1 DW, and 88.6% antioxidant activity, respectively. Vacuum drying resulted in moderate levels of bioactive compounds, while hot air drying yielded the lowest values. Volatile compound analysis, based on relative peak areas obtained from Gas Chromatography-Mass Spectrometry (GC-MS), indicated that freeze drying retained the highest levels of key aroma compounds, including hexanal (15.4%), ethyl acetate (13.9%), methyl acetate (5.7%), benzaldehyde (5.2%), 1-butanol (4.4%), linalool (3.5%), hexane (3.3%), and 2-nonanol (3.1%). The heatmap and ANOVA analyses consistently demonstrated that the drying method had a significant effect on volatile compound retention, with freeze drying identified as the most effective technique for preserving the native aroma profile. One-way ANOVA showed statistically significant differences between groups (P < 0.001). Multivariate analysis via Principal Component Analysis (PCA) revealed clear distinctions in both bioactive profiles and volatile compositions across the drying methods. Overall, freeze drying proved to be the most effective method for preserving both bioactive and volatile components in dried ‘Nero’ aronia fruits. |
Evolution, characterization and expression analysis of Sox gene family in rainbow trout (Oncorhynchus mykiss)Original PaperFang Ma, Yali Zou, Ruilin Ma, Xin Chen, Lanfang MaCzech J. Anim. Sci., 2022, 67(4):157-166 | DOI: 10.17221/4/2022-CJAS The Sox transcription factor family plays an important role in various biological processes such as animal sex determination and multiple organ development. We used online databases to analyze the gene structure, chemical characteristics, and evolutionary relationship of Sox family genes through bioinformatics, and we studied the expression profiles and regulatory mechanisms of Sox family genes. A total of 29 rainbow trout Sox genes were identified. The phylogenetic analysis found that Sox genes of rainbow trout were clustered in seven subfamilies (B1, B2, C, D, E, F and H), and the gene structure of each subfamily was relatively conserved. Furthermore, Sox1, Sox4, Sox6, Sox8, Sox9, Sox11, Sox17, Sox18, and Sox19 developed into two copies, which might be the result of teleost fish-specific genome replication. Multiple HMG box domain alignments indicated that the motifs for all Sox sequences are conserved. Gene expression studies reveal that Sox expression is tissue-specific and that multiple Sox genes are involved in rainbow trout gonad and central nervous system development. Our study provides valuable information on the evolution of teleosts, and will also help to further research the functional characteristics of Sox genes. |
Does feed restriction and pasture affect carcass composition and meat quality of fast-growing chickens?Original PaperEva Tùmová, Darina Chodová, Jan Tyl, Monika Okrouhlá, Tarek A. EbeidCzech J. Anim. Sci., 2024, 69(1):11-17 | DOI: 10.17221/154/2023-CJAS The aim of the study was to evaluate the effect of feeding regime (FR) and the combination of FR with pasture on the carcass composition and meat quality parameters of fast-growing chickens. Ross 308 chickens were split into three groups: Group 1 was fed ad libitum, and Groups 2 and 3 had a restricted diet. The chickens were feed-restricted at a rate of 70% ad libitum from 8 to 14 days of age. In Group 3, after restriction at the age of 21 days, chickens were kept on a pasture until the end of the experiment at 35 days of age. The chickens were fed ad libitum prior to and following restriction. Feed restriction and the combination of feed restriction and pasture significantly reduced final body weight, but the dressing out percentage was not affected. The breast percentage was the highest (P = 0.005) in the ad libitum group (30.5%), followed by the restricted group (28.2%) and the lowest in the group with a combination of feed restriction and pasture (27.4%). Breast pH and colour measured 24 h post mortem were not affected, whereas texture expressed as Fmax was the lowest in the group with the combination of feed restriction and pasture (P = 0.05). There was no effect of the group on meat dry matter, crude protein, cholesterol, and fatty acid content, but ether extract was the highest, and significantly so, in the ad libitum-fed group. In summary, feed restriction and the combination of feed restriction and pasture negatively affected final body weight and breast and abdominal fat percentages, which might be related to a short realimentation period for compensatory growth. However, these conditions negligibly affected carcass composition and the physical and chemical parameters of the meat. |
Soil pore structure and its research methods: A reviewReviewNannan Wang, Tibin ZhangSoil & Water Res., 2024, 19(1):1-24 | DOI: 10.17221/64/2023-SWR Soil pore is an important part of soil structure. According to the causes of formation, soil pores can be divided into biological pores formed by animal movement and plant root development and non-biological pores formed by dry-wet and freeze-thaw alternation or artificial tillage. The soil pore structure affects the migration of water, gas, nutrients and so on in the soil, especially the macropores can also produce water or solute preferential migration. Studying soil pores is of great significance for predicting soil hydraulic properties, reducing groundwater pollution and soil nutrient loss. Based on previous studies on soil pore structure, this paper systematically summarized the role of soil pores, influencing factors and the advantages and disadvantages of various research methods. This paper not only introduces traditional methods (including direct and indirect methods), but also summarizes the new research on soil pores combined with computed tomography (CT) technology and other science and technology in recent years. Finally, the prospect and development trend of soil pore research in the future were predicted, so as to provide reference for further research on soil pore structure. |
Chemical forest amelioration: Experience from the Czech Republic and other selected countries – A reviewReviewMartin Balá¹, Ivan Kune¹, Vilém Podrázský, Josef Gallo, Franti¹ek LopotJ. For. Sci., 2024, 70(3):103-121 | DOI: 10.17221/72/2023-JFS This review article summarises the results of research on forest liming, fertilisation, nutrition flows and cycles in selected European and other countries. The presented studies mostly deal with assessing the effect of liming and fertilisation applied during planting or shortly after planting. The sporadic studies on fertilisation in older stands are also presented. The application of crushed limestone, dolomite or other alkaline rocks or their mixtures is usually used to improve the soil conditions on a large area through the adjustment of soil acidity and to supply any deficient elements, especially calcium and magnesium. These amendments are typically used on naturally nutrient-poor soils or as a curative technique to neutralise the soil chemistry affected by anthropogenic acidification. Artificial fertilisers are usually applied on small spots to individual trees on the surface of the soil shortly after planting or into a planting hole during planting. The purpose is to give some initial support to young trees to better overcome the post-planting shock and to accelerate the height growth. Less frequently, artificial fertilisers are used on large areas of forest stands for the purpose of increasing stem growth. The methods and the extent of forest fertilisation substantially vary in individual countries and different time periods. |
Identification of antibiotic resistance genes in Escherichia coli from subclinical mastitis milk in dairy cows and goats, East Java ProvinceOriginal PaperDC Widianingrum, DG Silaban, WID Fanata, H KhasanahVet Med - Czech, 2024, 69(2):35-41 | DOI: 10.17221/80/2023-VETMED Antibiotics are still used to treat mastitis in dairy cows in Indonesia. This study aimed to analyse antibiotic resistance genes in Escherichia coli (E. coli) from subclinical mastitis milk in East Java Province, Indonesia. The samples consisted of subclinical mastitis milk from cows and goats. A total of 592-quarter cow’s milk and 71 goat’s milk samples from both halves of the udder were collected from 67 farms in Lumajang, Banyuwangi, Malang, Sidoarjo, Jember, Pasuruan, Probolinggo, and Mojokerto. Subclinical mastitis samples were screened using the California mastitis test (CMT). E. coli was identified by phenotypic and genotypic methods. E. coli was confirmed with a primer specific to the polymerase chain reaction (PCR) technique. Gene resistance of E. coli was tested using the multiplex-PCR (mPCR) technique with primers encoding the genes temoneira enzyme (TEM), oxacillinase (OXA), sulfhydryl variable (SHV), and cefotaximase-munich IV (CTX-M IV). These genes were chosen because mastitis treatment generally uses oxacilline and β-lactam antibiotics. All data obtained were analysed descriptively. The results show that six isolates of E. coli (46.15%) carried a single resistance gene (TEM or SHV) and two isolates (33.33%) were confirmed as multiple drug-resistant organisms (MDROs) (TEM and SHV). The resistance genes were found in samples originating from Blitar, Banyuwangi, Lumajang, and Pasuruan Regencies. This research implies that antibiotic-resistance genes found in E. coli on certain farms are dangerous and may allow gene transmission to other bacteria that make treatment for mastitis or other bacterial infections ineffective. |
The nurse sow system ‒ A natural process of handling large litters: A reviewReviewJoab Malanda Osotsi, Gabriella Novotni-Danko, Peter BaloghCzech J. Anim. Sci., 2024, 69(3):89-101 | DOI: 10.17221/158/2023-CJAS Reproductive performance in pig production has gained genetic momentum resulting in large litters. Several strategies have been used to raise the number of piglets to address the challenge of a large litter size. This review provides a rationale for employing the nurse sow system as a biological way of handling large litters, exploring its step-by-step processes and its selected impacts. By exposing these steps, pig farmers will use the information to pinpoint their weak points in the chain and customize the procedures to meet their farm-specific goals for improved productivity. The nurse sow system helps to maximize pre-weaning survival by boosting the overall worth of low birth weight piglets. When piglets weaned per sow/year are used as a performance benchmark, nurse sows weaning double litters become economically advantageous. Extended time in lactation for nurse sows gives them an ample time for their uterus to involute before the next pregnancy. However, nurse sows lose their body reserves reflected in backfat thickness from high milk production. Prolonged confinement in lactation deteriorates the physical condition of nurse sows, resulting in leg ulcers and teat damage. Additionally, piglets are more distressed when taken away from their biological sow to a new sow. |
Impact of new generation plant growth regulators on fruit crops – A ReviewReviewAkshay Kumar, Rajni Rajan, Kuldeep Pandey, Rodge Rahul Ramprasad, Gulbadan Kaur, Thammali Vamshi, Tanya SinghHort. Sci. (Prague), 2024, 51(1):1-22 | DOI: 10.17221/166/2022-HORTSCI Plant growth regulators (PGRs) are artificially synthesized substances that control growth, development, and other various physiological processes in plants. Synthesized auxins, ethylene, abscisic acid, cytokinin, and gibberellins are only a few of the key PGRs that have been studied and used for quite a long period of time. brassinosteroids, salicylic acid, jasmonic acid, CPPU (N-(2-chloro-4-pyridyl)-N’-phenylurea), putrescine, hexanal, triacontanol, melatonin, and other chemicals have been added to the list of PGRs. These PGRs can be considered the new generation of plant growth regulators. These relatively novel hormones are critical for a plant’s growth and development. They aid in the increase of not only the quantity (fruit set, length, weight, yield, volume, pulp percentage, and so on) but also the quality of fruit crops (fruit colour, firmness, total soluble solids, total sugar, ascorbic acid content, etc). They also help to prolong the shelf life of certain fruits and minimize the losses after harvesting. As a result, these new-generation PGRs can be used to boost an orchard’s productivity and income while minimizing pre and post-harvest losses to the greatest extent possible. Hence, this extensive review discusses the impact of these new-generation PGRs on fruit crops. |
Fertilisation and environmental factors affect the yield and quality of alfalfa in ChinaOriginal PaperShun Li, Zongqing LiuPlant Soil Environ., 2024, 70(5):276-286 | DOI: 10.17221/457/2023-PSE Alfalfa (Medicago sativa L.) is a superior-quality perennial legume forage crop cultivated in China. However, fertiliser applications and the environmental factors affecting alfalfa yield and quality have not been well documented. In this study, we conducted a meta-analysis using a dataset from 105 studies published between 2003 and 2023 to explore the effects of fertiliser application and environmental factors on the yield and quality of alfalfa. The results showed that compared to the non-fertiliser control levels, fertiliser application increased alfalfa yield by 24.61% and improved the quality of alfalfa by increasing crude protein by 11.63% and decreasing acid detergent fibre by 7.69% and neutral detergent fibre by 6.76%. Alfalfa yield and the crude protein effect size increased with increasing altitude but decreased with increasing latitude based on fertiliser application. The acid detergent fibre and neutral detergent fibre effect size were positively correlated with mean annual temperature and mean annual precipitation. In conclusion, applying fertiliser is a productive approach to enhance the yield and grade of alfalfa, but environmental factors have an effect. This study provides comprehensive information on fertiliser applications and environmental factors that affect alfalfa yield and quality. These results provide insight into further improving alfalfa yield and quality and contribute to the development of alfalfa. |
Digital image processing for preliminary detection of infected porang (Amorphophallus muelleri) seedlingsOriginal PaperAryanis Mutia Zahra, Noveria Anggi Nurrahmah, Sri Rahayoe, Rudiati Evi Masithoh, Muhammad Fahri Reza Pahlawan, Laila RahmawatiRes. Agr. Eng., 2024, 70(2):111-121 | DOI: 10.17221/79/2023-RAE Porang (Amorphophallus muelleri) is an Indonesian parental plant tuber developed vegetatively from bulbils during dormancy and harvested through petiole detachment for the industrial production of glucomannan. Pathogenic fungi and whiteflies can cause infection during harvesting and storage, destructing plant cells as well as reducing seed quality and crop yields. Therefore, this study aimed to develop a calibration model for detecting infected and non-infected porang bulbils using a computer vision system. Image parameters such as colour (red, green, blue – RGB and hue, saturation, intensity – HSI), texture (contrast, homogeneity, correlation, energy, and entropy), and dimensions (width, area, and height) were evaluated on 90 samples in three positions. The results showed that the majority of image quality properties were significantly associated with non–infected and infected porang bulbils as showed by Pearson correlation values of 0.901 and 0.943, respectively. Discriminant analysis based on image attributes effectively classified non-infected and infected seedlings, achieving a model accuracy of 97.0% for correctly classified cross-validated grouped cases. Therefore, computer vision can be used for the preliminary detection of fungal infection in porang bulbils, as evidenced by its high accuracy and outstanding model performance. |
In vitro antifungal activity and mechanism of action of carvacrol against Sclerotinia sclerotiorum (Lib.) de BaryLei Yang, Xue Ma, Lijun Wang, Guogen Yang, Lijun Zhou, Zhilin Zhang, Xiaomeng LiPlant Protect. Sci., 2024, 60(2):172-180 | DOI: 10.17221/121/2023-PPS This study aimed to examine the antifungal effects of nine monoterpenes on Sclerotinia sclerotiorum via the mycelial growth rate method. The effects of carvacrol on the morphological structures of hyphae were investigated by scanning electron microscopy (SEM). The oxalic acid (OA), total protein contents, and the activity of cell wall-degrading enzymes, including chitinase, cellulase and β-1,3-glucanase, were assessed. The results showed that the antifungal rates of carvacrol, thymol and eugenol reached 100% at a concentration of 400 mg/L, and the EC50 values of carvacrol, thymol, and eugenol were 43.40, 56.22, and 86.63 mg/L, respectively. The treatment of S. sclerotiorum with carvacrol had no significant effect on sclerotia formation, but the mycelial surface was shrivelled, uneven and broken, with cytoplasm flowing out. The OA content of S. sclerotiorum was significantly reduced to 133.78 µg/mL after treatment with carvacrol. Additionally, the total protein content of S. sclerotiorum mycelia in the carvacrol treatment group was significantly reduced to 15.67 µg/mL compared with that of the control group, and the activity of cellulase in the carvacrol treatment group was significantly higher than that in the control group. |
Innovations in the methodological approach to quantifying and evaluating the supported effects of forests for recreational and educational ecosystem servicesOriginal PaperZdenìk Odvárka, Jitka MeòházováJ. For. Sci., 2024, 70(5):235-248 | DOI: 10.17221/13/2024-JFS The paper deals with a new method of innovative assessment of the supported effects and ecosystem services of forests using the actual amount of their increased costs. Among the most important research findings and significance of the new method is that it contributes to the body of knowledge on valuation and payment for ecosystem services. The focus of the research task is to help address the current difficult economic situation of forest owners resulting from the impacts of climate change. The study aims to determine what work quantifies the amount of compensation for the provision of supported ecosystem services that is sufficient for owners by using hypothesis testing. The evaluation of the supported effects was carried out in a case study in the area of the Chrudim-Podhùra Recreational Forests in the Czech Republic. The results of the evaluation were quantified in two experimental spreadsheets of the results, a comparative analysis of the evaluation results was performed, and hypothesis testing was conducted. The innovative methodological approach to the assessment of supported effects can be easily modified and used to assess the actual amount of increased costs of other ecosystem services of the forest. |
Evaluation of the effect of different thinning types on dendrometric parameters and subsequent spontaneous growth in a beech-oak-linden standOriginal PaperKateøina Novosadová, Jiøí Kadlec, Petr Sýkora, Martin Kománek, Radek PokornýJ. For. Sci., 2024, 70(6):299-316 | DOI: 10.17221/10/2024-JFS Due to an increasing risk of further damage to forests, forest managers are considering introducing an alternative direction for their future development – via the cultivation of mixed forests. At middle altitudes in the Czech Republic, an oak-beech-linden stand is the most natural type, and we tried to answer three main questions: (i) How the various thinning types affect dendrometric parameters and quality of the stand; (ii) How long thinning works on this stand until it loses its effect; (iii) How the stand develops spontaneously after abandonment. This experiment was conducted at the Training Forest Enterprise in the Czech Republic in Drahanská vrchovina (highlands in central Moravia). In 1988, four plots were established in a 49-year-old stand where, in three of the plots, different types of thinning (crown, low and heavy crown) were performed, leaving one (reference plot) to develop naturally. The height, the height of the crown base and diameter at breast height (DBH) were measured, and the shape and quality of the trunk and crown were estimated on each tree. Measurements were carried out in 1989, 1994, 1999, 2005, 2010, 2015, and 2020. In the first 10 years, the DBH and height of the crown base did not show any differences, and the linden at the heavy crown plot outgrew the linden trees at the other plots in height. After these 10 years, the thickest linden, the tallest beech and linden, and the greatest height of the crown base of beech and linden were all found at the heavy crown plot. The shape and quality of the trunks and crowns of beech, oak and linden were similar in all plots (including the reference plot) during the entire experiment. After thinning, the plots were left to grow spontaneously. The heavy crown thinning removed a greater number of thicker trees at the middle level, thus supporting the trees growing in the lower part of the middle level and in the below level (i.e. the beech and linden). These trees then grew more quickly compared to the others, but their quality decreased, as did that of the others. Therefore, a forest left to grow and develop spontaneously is practically unusable for commercial purposes. |
Effect of different forms of buckwheat addition on the physicochemical and sensory properties of breadOriginal PaperErdi Eren, Murat Reis AkkayaCzech J. Food Sci., 2024, 42(3):216-223 | DOI: 10.17221/36/2024-CJFS This study aimed to obtain buckwheat bread by adding whole buckwheat to the white bread formulation in groat and flour form. The addition was made in different proportions (0, 10, 20, and 30%) according to the principle of substitution. Buckwheat addition, as groat, increased the bread's hardness to a great extent. Moisture analysis results indicated that the buckwheat additive can increase the water-holding capacity and may extend the shelf life, especially in flour form. The samples' antioxidant activities and phenolic content significantly increased when the addition was made as flour. All buckwheat-added samples had lower volume values than control samples. Buckwheat addition caused an increase in volatile components such as phenylethanol and benzylalcohol. As a result of sensory analysis, using buckwheat as flour and groat positively affected breadmaking. Considering the samples' nutritional and sensory properties, the combination in which 20% buckwheat flour is added to the white bread formulation is the most appropriate use. |
Exploring the role of endophytic fungi in the amelioration of drought stress in plantsReviewAlulutho Nombamba, Ayomide Emmanuel Fadiji, Olubukola Oluranti BabalolaPlant Protect. Sci., 2024, 60(3):213-228 | DOI: 10.17221/25/2023-PPS Drought is one of the environmental stresses that threaten food availability. It results in decreased crop yields and developments and diminishes overall plant health. Chemical solutions for alleviating drought stress may be harmful to the environment. Using an alternative, microorganisms help counter the effects of drought stress. Endophytes have a mutualistic relationship with the host as they provide protection and get nutrients. Fungal endophytes assist plants in countering the damaging results of drought stress by producing phytohormones and growth-promoting compounds that promote root and shoot growth and enhance crop productivity. Inoculating maize plants with endophytic fungi like Fusarium oxysporum and Penicillium sp. have a higher chance of surviving drought stress. These organisms can increase root length, allowing moisture to reach deeper into the soil. This review explores endophytic fungi's roles in alleviating drought stress’s consequences on plants. More investigations should be carried out on the favourable effects of fungal endophytes in the mitigation of drought stress through pot and field inoculation. |
Change in forest species composition and its projections into the economy of forest ownersOriginal PaperVáclav ©ebek, Václav Kupèák, Andrea Janáková SujováJ. For. Sci., 2024, 70(7):368-380 | DOI: 10.17221/21/2024-JFS Increasing the proportion of broadleaved trees in stands during regeneration raises questions about how these trees will be reflected in the economics of forest owners and whether these owners can influence certain economic aspects during stand management. In this respect, the paper focuses mainly on the revenue side of forestry and, crucially, analyses the selling prices of assortments of tree species groups as offered in public tenders of state forests under the outsourcing business model. The price level of spruce is used as a benchmark for comparisons in the analyses. It is clear that the cultivation of species-diverse forests entails an increase in the representation of a higher number of tree species and, presumably, increased stand stability. However, a concomitant consequence may be an increase in costs and a reduction in returns for forest owners. Here, the revenue from timber sales can be improved by appropriate adjustment of the species composition through educational interventions. All this is in the context of the economic viability of forestry, as declared in a number of strategic and forest policy documents, which essentially depends on the timber production function of forestry and the subsequent processing of timber. |
The water repellency of earthworm (Lumbricus terrestris) casts depends on their particle size composition, organic carbon content and calcium carbonate contentOriginal PaperMadalina Iordache, Liliana Brei, Isidora Radulov, Ioan Gaica, Daniel Dicu, Codruta ChisSoil & Water Res., 2024, 19(3):144-153 | DOI: 10.17221/93/2023-SWR
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Response of maize (Zea mays L.) on yield, physiology and stomatal behaviour under two different elevated CO2 concentrations. Do these anatomical changes affect the physiology of the C4 crop plant under high CO2 conditions?Original PaperKhan Ira, Vanaja Maddi, Sathish Poldasari, Faizan Mohammad, Soysal Sipan, Rajput Vishnu D., Djalovic Ivica, Trivan Goran, Alam PravejPlant Soil Environ., 2024, 70(10):601-616 | DOI: 10.17221/105/2024-PSE Rising CO2 concentration in the atmosphere is a matter of global concern and poses apprehension about how plants will adapt to the changing environment. Various studies have proved that under high CO2 levels, plant physiology alters and affects plant functioning. However, under elevated CO2, the stomatal characters and their relation with physiological responses are still not yet clear. To find out these changes in the stomatal parameters at ambient and two elevated CO2 (550 ppm and 700 ppm) levels, four genotypes of maize (Zea mays L.) viz. DHM-117, Harsha, Varun and M-24 were grown in open-top chambers. In the study, it was observed that the stomatal density increased, stomatal size altered, stomatal conductance (gs) and transpiration rate (Tr) decreased under elevated CO2 (eCO2) while photosynthetic rate (Pn), water use efficiency (WUE), yield and biomass, of which especially the reproductive biomass increased. Under eCO2, stomatal and physiological changes were genotypic and CO2 concentration specific. Increased stomatal density at eCO2 was mainly due to increased abaxial stomatal density. The improved Pn and reduced Tr at 550 ppm improved the WUE in the plants, while this response was not observed at 700 ppm. These results elucidate that this C4 crop responded positively to up to 550 ppm of CO2 concentrations, and beyond this, the impact was minimal. |
Impact of intercrops on soil loss and surface runoff from sloping maize fieldsOriginal PaperJan Gregar, Jan Petrù, Jana Kalibová, Vìra Ürge, David Kincl, Jan VopravilSoil & Water Res., 2024, 19(3):168-175 | DOI: 10.17221/43/2024-SWR Water erosion poses a significant threat to more than 50% of agricultural land in the Czech Republic. Maize (Zea mays L.) is particularly susceptible to soil erosion, with the bare soil space between maize rows exposed to erosive agents. Intercropping has emerged as a potential solution to mitigate soil erosion risks in maize cultivation. A series of soil erosion field experiments were conducted from 2022 to 2023 using natural rainfall to investigate the influence of selected intercrop mixtures during the growing season on sediment yields and surface runoff volume. The results revealed a gradual decrease in surface runoff volume and sediment yields over the growing season. Significantly reduced surface runoff volume and soil loss were observed in two tested intercropped plots S2 – rye (Secale cereale) and incarnate clover (Trifolium incarnatum); S3 – ryegrass only (Lolium)), compared to a control plot managed conventionally with maize (S1). Surface runoff volume and soil loss from S2 and S3 reached 2.57–43.5% and 1.26–11.65% of the control plot, respectively. These findings highlight the soil conservation effect of intercrop technologies (S2 and S3) in mitigating soil erosion in maize cultivation. The importance of vegetation cover in reducing soil erosion intensified over time. Intercropping holds promise as a sustainable agricultural management strategy for sloping maize fields. |
Senecio ovatus poisoning in a horse – A case reportCase ReportA Kopecka, T Novotna, Z Svobodova, Z DrabkovaVet Med - Czech, 2024, 69(9):329-336 | DOI: 10.17221/37/2024-VETMED This study describes a case of poisoning by pyrrolizidine alkaloids in a horse. To the best of the author’s knowledge, this is the first confirmed case of Senecio ovatus poisoning. A six-year-old 450-kg Irish cob mare was presented to the Equine Clinic of the University of Veterinary Sciences Brno (Czechia) with symptoms of hepatic encephalopathy, which progressively worsened with time despite intensive therapy and led to euthanasia. A complex diagnostic and therapeutic approach including the post-mortem patoanatomical and histopathological examination is described here. Regarding the histopathology of the liver, there was necrosis with haemorrhage, fatty changes and inflammation. A later inspection of the grazing area revealed the presence of Senecio ovatus (wood ragwort). A sensitive chromatographic method was used to determine the pyrrolizidine alkaloids and their metabolites in the plasma and the liver. In both of the samples, metabolites of pyrrolizidine alkaloids were detected. Although pyrrolizidine alkaloid poisoning was proven, the histopathological findings typical for this disease were absent. It is clear from our case that the histopathology in cases of poisoning by pyrrolizidine alkaloids may not always be conclusive. |
Quality and in vitro fertilising ability of cryostored Pinzgau bull insemination dosesOriginal PaperLucia Olexiková, Linda Dujíèková, Jaromír Va¹íèek, Andrej Balá¾i, Andrea Svoradová, Lenka Ku¾elová, Alexander Makarevich, Peter Ivaniè, Peter ChrenekCzech J. Anim. Sci., 2024, 69(11):431-440 | DOI: 10.17221/142/2024-CJAS
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Nanocellulose as a fat substitute to improve the quality of emulsified sausages: Effects of morphology and contentOriginal PaperHongzhen Guo, Xiaolan Shang, Yunping Cheng, Qiuling LiCzech J. Food Sci., 2024, 42(5):364-371 | DOI: 10.17221/114/2024-CJFS Two different morphologies of nanocellulose – cellulose nanofibres (CNFs) and cellulose nanocrystals (CNCs) with different contents were added to emulsified sausages to replace pork back fat in different proportions (10%, 30%, and 50%), and the colour, emulsion stability, texture characteristics and dynamic rheological behaviour of emulsified sausages were analysed. The results indicate substituting fat with nanocellulose led the L* (lightness) and a* (redness) values increased and the b* (yellowness) values decreased of the emulsified sausages. Increasing nanocellulose concentration improved the emulsion stability of the sausages. In terms of emulsion stability, the use of CNFs outperformed CNCs, especially for samples substituted with 50% fat. In terms of texture, emulsified sausages where CNCs replaced fat showed lower hardness, viscosity, and chewiness compared to those with CNFs. The dynamic rheological results indicated that when the fat replacement levels were 10% and 30%, samples using CNFs as fat substitute had slightly higher storage modulus (G') values than those using CNCs. However, for 50% fat replacement, samples using CNFs as fat substitute had significantly higher G' values than those using CNCs, which demonstrates that higher CNFs concentrations are more conducive to the formation of a three-dimensional network structure. |
A study on the measurement of the reference range of the whole blood viscosity in Thoroughbred horsesOriginal PaperY Ha, K Yi, C Park, G Kim, D Choi, J Lee, N KimVet Med - Czech, 2024, 69(11):381-388 | DOI: 10.17221/24/2024-VETMED
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Ecophysiological aspects of some sweet cherry cultivars from the North-East of RomaniaOriginal PaperIulia Mineata, Ionel Perju, Sorina Sîrbu, Iuliana Elena Golache, Ionut Vasile Ungureanu, Stefanica Ostaci, Carmen Doina JitareanuHort. Sci. (Prague), 2024, 51(4):305-313 | DOI: 10.17221/113/2023-HORTSCI The physiological performance, growth and competitive ability of fruit trees are increasingly affected by the effects of global climate change, very different at a regional level, which mainly causes considerable changes in water availability. The purpose of this study was the evaluation of three sweet cherry cultivars from the Research Station for Fruit Growing (RSFG) Iași, Romania under the climatic conditions of 2022–2023 by performing physiological investigations into the water regime and the transpiration process through the stomatal conductance, the water content of the leaves as well as their dehydration rate after 24 hours. The obtained data were statistically interpreted taking three experimental factors into account: factor A consisted of three distinct phenological stages (full flowering, fruit about 80% of the final size and fruit ripening); factor B constituted by the three cultivars (‘Van’, ‘Andreiaș’ and ‘Margonia’); and factor C was constituted by the canopy area from the samples (internal and external). The experimental variants statistically interpreted by Duncan’s test (P ≤ 0.05) registered significant differences. The Pearson correlation coefficient (R2) between the measured variables obtained positive distinctly significant values of R2 = 0.686 (with the stomatal conductance) and negative distinctly significant values of R2 = –0.874 (with the water content). The obtained results will support the development of predictive models for different irrigation and breeding strategies to improve the sweet cherry production in temperate continental climates. |
Effects of different dietary inclusions of whole-plant corn silage on growth performance, nutrient availability and jejunal development in growing-finishing pigsOriginal PaperXiangyu Ma, Jing Sun, Jianpu Zhao, Xiaoxue Jv, Jiuyuan Dong, Weiren Yang, Yanping Jiang, Yang Li, Lijie Yang, Shuzhen JiangCzech J. Anim. Sci., 2024, 69(2):48-58 This study aimed to evaluate the effects of whole-plant corn silage (WCS) on growth performance, nutrient availability and intestinal development in growing-finishing pigs. A total of 32 barrows (33.1 ± 3.49 kg) were randomly allocated to four treatments. Control was the basal diet, and the low, medium, and high treatments were basal diets substituted with WCS (air-dry basis) at 5.0%, 7.5%, and 10.0% from day 1 to 42, and 10.0%, 12.5%, and 15.0% from day 43 to 98, respectively. The results showed that the average daily feed intake (ADFI), feed/gain (F/G), and crypt depth (CD) increased linearly (P < 0.05) with the increasing of WCS. However, the final body weight, average daily gain (ADG), biological value (BV), net protein utilization (NPU), dry matter, crude protein (CP), ether extract, crude fibre (CF), and gross energy decreased linearly (P < 0.05). High treatment significantly deteriorated BW, ADG, NPU, and BV compared to control, low, and medium treatments (P < 0.05). The low and medium treatments showed significantly greater ADFI, apparent digestibility (CP and CF), villus height (VH), VH/CD, relative mRNA and protein expression of occludin, claudin-1 and sodium-glucose cotransporter (SGLT1) than the high treatment (P < 0.05). The highest F/G, CD, relative mRNA and protein expression of cationic amino acid transporter (CAT1) were observed in high treatment (P < 0.05). Our results suggested that WCS can replace 7.5% and 12.5% of diet during growing and finishing periods of pigs, respectively. This is of great significance for reducing feeding costs and alleviating food security crises. |
The effects of Pycnogenol, a pine bark extract on pulmonary inflammation by Asian sand dust in miceOriginal PaperSW Pak, SJ Lee, Kim WI, YG Yang, YK Cho, JS Kim, TW Kim, JW Ko, JC Kim, SH Kim, IS ShinVet Med - Czech, 2024, 69(1):8-17 | DOI: 10.17221/77/2023-VETMED Erratum in: Vet Med-Czech. 2024 Nov 29;69(11):401. doi: 10.17221/97/2024-VETMED |
Crude oil induces plant growth and antioxidant production in Leersia hexandra Sw.Original PaperJose Alberto Orocio-Carrillo, Maria del Carmen Rivera-Cruz, Antonio Juárez-Mandonado, Consuelo del Carmen Bautista-Muñoz, Antonio Trujillo-Narcía, Yolanda García-González, Said Cadena-VillegasPlant Soil Environ., 2024, 70(2):72-83 | DOI: 10.17221/311/2023-PSE
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The effect of exogenous application of salicylic acid and ascorbic acid on forage quality and yield of maize (Zea mays L.) under water deficit conditionsOriginal PaperNavvab Haji Hassani Asl, Farhad Farah Vash, Mohsen Roshdi, Bahram Mir Shekari, Mehdi GaffariPlant Soil Environ., 2024, 70(3):142-153 | DOI: 10.17221/181/2023-PSE The effects of the foliar application of plant growth regulators (PGRs), salicylic acid (SA) and ascorbic acid (AA) were studied on yield and some qualitative traits of corn silage under drought stress in a field experiment conducted in the Agricultural and Natural Resources Research Center of Khoy in two consecutive years. The experiment was performed in four replications as a split plot in a randomised complete blocks design. Irrigation treatment was in two levels, ir75 and ir150, and the foliar applications of SA and AA at seven levels (100, 200, and 300 ppm, as well as a control treatment). The amount of water consumed in ir75 and ir150 during 10 and 7 times irrigation was 6 000 and 4 200 m3/ha, respectively. Malondialdehyde (MDA) content was increased over the plant growth period in both ir75 and ir150, but with the difference that its range was 3.72 to 12.9 nmol/g FW (fresh weight) under ir75 and 12.5–109.5 nmol/g FW under water shortage conditions. The results show that ir150 decreased plant height, forage yield, ear weight, and nitrogen uptake versus ir75. In plants treated with SA and AA, nitrogen uptake and chlorophyll content increases (45–33%) were observed compared to the control plants under ir75. In most traits, there was no significant difference between AA and SA levels, but plants treated with SA100 showed higher protein yield, dry forage yield, and ear yield. |
Modelling of desorption isotherms for dried meat: New approach and newly applied modelOriginal PaperPøemysl Richtr, Josef Bauer, Svatopluk Henke, Rudolf ©evèíkCzech J. Food Sci., 2024, 42(1):55-63 | DOI: 10.17221/170/2023-CJFS
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Energy and carbon dioxide emission analysis of a batch-mode paddy drying process in a rotary dryerOriginal PaperDewi Qurrota A’yuni, Dede Kurniawan, Muhammad Pradhipta Irwanda Prayoga, Andri Cahyo Kumoro, Mohamad Djaeni, Agus SubagioRes. Agr. Eng., 2024, 70(1):35-42 | DOI: 10.17221/32/2023-RAE The rice drying process in a rotary dryer gives the benefit of producing uniformly dried rice in a short drying time. This work investigated a rotary dryer's efficiency and heat consumption at various temperatures (40, 50, and 60 °C) and capacities (10, 20, 30, and 40 kg). When loaded with 10 to 30 kg of rough rice and operated at 60 °C, the dryer produced dry rice with 14% w.b. moisture content for less than 3 hours. The energy efficiency and consumption were evaluated based on the experiment and theoretical analysis. According to the observation, a high temperature significantly shortened drying time. Thus, the total energy and fuel consumption decreased even at the higher capacity. The lowest carbon dioxide emission was achieved at the highest temperature and capacity. |
