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Repeated bolus injections of bupivacaine for continuous bilateral transversus thoracis plane block undergoing median sternotomy in a dog: A case reportCase ReportD Kim, D Shin, S Yun, G An, J Jung, WG SonVet Med - Czech, 2024, 69(4):123-129 | DOI: 10.17221/118/2023-VETMED An 8-year-old, 6.5 kg, neutered female Shih-Tzu dog was presented for surgical resection of a mediastinal mass. A median sternotomy and left cranial lung lobectomy were performed. Intraoperatively, with the patient under general anaesthesia, a bilateral transversus thoracis plane (TTP) block was performed by injecting 0.5% bupivacaine (0.2 ml/kg) per side using real-time ultrasound guidance. After surgery, indwelling catheters for repeated bolus injections of bupivacaine in TTP were placed as follows: the fifth sternebra was palpated in dorsal recumbency, and the transducer was placed in the longitudinal plane lateral to the sternal border. A 16 gauge over-the-needle catheter was inserted caudo-cranially using an in-plane technique and located in the TTP. An intermittent bolus of bupivacaine (0.1 ml/kg) per side was injected via the indwelling catheter every 8 h for 3 days, with a constant rate infusion of an intravenous fentanyl (1 μg/kg/h) and ketamine (0.12 mg/kg/h) combination. Post-operative pain was evaluated using the Glasgow composite measure pain scale and the score was 4–5/24 on the day of surgery and gradually decreased over time. Additional rescue analgesia was not required. Repeated boluses of bupivacaine for a continuous bilateral TTP block may be a useful adjuvant for perioperative pain management strategies, including median sternotomy, in dogs. |
The effect of cold atmospheric plasma (NO) alone and in combination with NPH insulin on the full-thickness excisional wound healing in a diabetic rat modelOriginal PaperA Curukoglu, GCA Gungor, G Akan, A Kukner, G Ogutcu, M Kalaycı, M Temizel, FE OzgencilVet Med - Czech, 2023, 68(4):152-163 | DOI: 10.17221/109/2022-VETMED This study was planned to investigate an alternative treatment modality in diabetic wound healing. In this experimental study, the efficacy of both cold atmospheric plasma/nitric oxide (NO) and NPH insulin ointment, recently known to have beneficial effects on wound healing, was investigated in diabetic wound healing. Twenty-four (24) diabetic rats were divided into four groups DC, DI, DNO and DINO (diabetic control, diabetic insulin, diabetic nitric oxide, diabetic insulin + nitric oxide groups). No treatment was applied to the DC group, NPH insulin was applied to the DI group, CAP/NO was applied to the DNO group, and CAP/NO + NPH insulin was applied to the DINO group once daily for 14 days. The wound area reduction and the wound contraction rate were calculated on the basis of the tissue sections taken, and histopathological and genetic analyses were carried out. Compared to the control group, exogenous NO gas was found to be a potent antibacterial agent in the diabetic wound healing, causing a reduction in the wound area (P = 0.034), an increased contraction rate (P = 0.021), epithelialisation (P = 0.02), collagen organisation (P = 0.006) and a reduction in the number of inflammatory cells (P = 0.002). A significant increase in the expression of IL-8 mRNA was observed (P = 0.026). It was concluded that NPH insulin alone contributes to wound healing, but it is not necessary to use it together with exogenous NO gas. |
Thinning effects on growth and occurrence of rotting in aspen standsOriginal PaperAlina Nasibullina, Marieke van der Maaten-Theunissen, Ernst van der Maaten, Holger Fischer, Sven WagnerJ. For. Sci., 2023, 69(12):525-538 | DOI: 10.17221/103/2023-JFS Poplar species such as aspen (Populus tremula L.) play a very important role in the forest formation process not only in Eastern European regions. Unfortunately, such aspen stands are often severely affected by fungal diseases, causing mainly core rot. In this study, the indirect effects of thinning on the phytosanitary condition of aspen by promotion of tree growth were investigated. Two thinning methods, manual (thinning from below) and mechanical thinning (schematic), were applied to young stands dominated by Eurasian aspen to study their effects on tree growth and health. All trees were measured at breast height and diameter frequency distribution was determined twice, i.e. three and 24 years after the beginning of the experiment. In addition, during the second measurement, tree-ring samples were obtained from individual trees to evaluate growth and wood decay damage. Neither manual nor mechanical thinning of aspen significantly increased its growth at the stand level, but positive effects on individual trees were observed in plots where mechanical thinning was applied. The thicker the trees, the less decayed they were. The analysis suggests that thinning in general should not be used to increase stand production, but the positive effects of mechanical thinning on individual aspens can be recommended to promote the growth of individual vigorous trees. |
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. |
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. |
Gly-Leu instead of Gly promoted the proliferation and protein synthesis of chicken intestinal epithelial cellsOriginal PaperJing Liang, Baolong Du, Minyan Wan, Yapeng Zhao, Defu TangCzech J. Anim. Sci., 2023, 68(9):391-398 | DOI: 10.17221/213/2022-CJAS Amino acids have positive regulatory effects on the function of intestinal epithelial cells (IEC), but in the field of animal nutrition, research on the regulatory effects of amino acids on IEC is still in the initial stages. This study aims to explore the effects of Gly, Gly-Gly, and Gly-Leu on IEC proliferation and their possible mechanisms. Chicken small intestinal epithelial cells were separated using the tissue block method, and other miscellaneous cells were removed for digestion and passage culture. The IEC were cultured in the medium containing 20 nmol/l Gly, Gly-Gly and Gly-Leu for 24 h, and the expression of enterokinase and cytokeratin in cells, the growth curve and activity of IEC, cell cycle, differentially expressed genes, mRNA expression, and protein expression levels of p-mTOR and p-S6K1 in IEC were detected. Enterokinase and cytokeratin were expressed specifically in IEC. The results of growth curve and MTT revealed that the cell viability of IEC was significantly increased after treatment with Gly, Gly-Gly and Gly-Leu. The cell cycle results showed that compared with the control group, Gly, Gly-Gly and Gly-Leu intervention could increase the proportion of IEC in G1 phase, and the proportion in S phase of IEC was decreased. Transcriptome sequencing showed that compared with the control group, there were 54, 28 and 30 differential genes in Gly group, Gly-Gly group and Gly-Leu group, respectively. These genes were mainly enriched in nitric oxide synthesis and protein kinase B signalling, PI3K signal and cellular amino acid biosynthesis and transport signal pathways. RT-PCR results showed that the mRNA expression levels of PCYT2, SPP1, EMC6, GRIA2 and PKD2 were consistent with the sequencing results. Western blot results showed that compared with the control group, the protein expression of p-mTOR and p-S6K1 in Gly group, Gly-Gly group and Gly-Leu group was significantly increased. Gly-Leu can promote the protein synthesis in IEC by activating protein synthesis of mTOR signalling pathway in chicken IEC. |
Impact of selected antimitotic substances on doubled haploid and polyploid regeneration in microspore cultures of swede (Brassica napus ssp. napobrassica (L.) Hanelt)Original PaperMiroslav Klíma, Yamen H. Shmeit, Pavel Kopecký, Pavel Vítámvás, Klára Kosová, Ilja T. Prá¹il, Eloy Fernández-CusimamaniCzech J. Genet. Plant Breed., 2024, 60(2):79-85 | DOI: 10.17221/84/2023-CJGPB Several antimitotic agents were tested in three embryogenic doubled haploid (DH) lines of swede (Brassica napus ssp. napobrassica). No effect on embryogenesis was observed at the given concentrations of colchicine (5 μmol/L or 50 mg/L) and treatment time of 24 hours. Flow cytometric analysis of microspore embryos revealed a significant increase in the percentage of DH compared to the control for all substances: ethalfluralin, 62.2%; trifluralin, 58.3%; colchicine, 56.1%; amiprophos-methyl, 54.4%; pronamide, 35.0%; control, 13.3%. The occurrence of pure tetraploids was low (0–5%), mixoploids – especially n+2n – were high in all treatments, including the control (29.4–71.1%). Their presence can be explained as a consequence of spontaneous diploidisation and/or endoreduplication during embryogenesis or embryo germination. |
Selectivity and efficiency: evaluation of synthetic Grapholita molesta sexual pheromonesOriginal Paper®aneta Pra¾anová, Hana ©efrováPlant Protect. Sci., 2024, 60(3):267-277 | DOI: 10.17221/47/2024-PPS The effectiveness of pheromone lures for Grapholita molesta (Busck 1916) from Propher (Czech Republic) and Pherobank (Netherlands), the attractiveness of green and transparent pheromone traps and the representation of non-target species were evaluated in three study areas of southern Moravia (Czech Republic) in 2019–2021 (24 traps per year). A total of 6 536 Grapholita molesta and 946 individuals of 17 non-target species were collected. Grapholita molesta was frequently captured in green delta traps with a Pherobank pheromone lure. Therefore, pheromone lures from different manufacturers have different efficacy and require the independent setting of harmfulness thresholds. An overview of non-target species recorded by other authors was compiled. Among the non-target species, morphologically similar species of Tortricidae dominated, causing considerable problems in the signalling of control measures of the target species. |
A multi-year study monitoring the cadmium content in the tissues of lambs and sheep sampled in the Czech Republic between 2001 and 2022Original PaperZ Svobodova, J Drapal, V Vlasakova, D Harustiakova, J Illek, M SvobodaVet Med - Czech, 2024, 69(9):314-320 | DOI: 10.17221/45/2024-VETMED Cadmium is one of the most important environmental contaminants. Animals grazing on natural pastures are particularly exposed to cadmium. Sheep are mostly reared in extensive and grazing systems. Therefore, sheep may accumulate larger amounts of cadmium compared to other ruminant species and are a good indicator of exposure to cadmium contamination in a given area. The determination of cadmium concentrations in the muscles, livers and kidneys of lambs and sheep was carried out in the Czech Republic during the period 2001–2022. The average cadmium content in the livers and kidneys of all the lambs was 0.037 ± 0.006 and 0.061 ± 0.013 mg.kg–1, respectively. The average cadmium content in the livers and kidneys of all the sheep was 0.319 ± 0.047 and 1.255 ± 0.204 mg.kg–1, respectively. The maximum limit for human consumption was not exceeded in any of the 24 samples in the lambs but was exceeded in 5 of 33 liver samples and 12 of 33 kidney samples in the adult sheep. The average value of cadmium in the muscles of the lambs and sheep was 0.004 ± 0.001 mg.kg–1. The maximum limit for human consumption was not exceeded in any muscle sample. The cadmium content in both the liver and in the kidney differs significantly between the lambs and sheep, being higher in the sheep (P < 0.001 for both comparisons). No statistically significant trend of a decrease in the cadmium content in the lamb and sheep tissues was found during the observed time (P > 0.05). We can sum up that there is an evident need for further monitoring of the cadmium concentration in lamb and sheep tissues in the Czech Republic. |
Low-density lipoprotein supplementation improves the quality of Holstein bulls’ insemination dosesOriginal PaperJan Pytlík, Radim Codl, Jaromír Ducháèek, Filipp Georgijeviè Savvulidi, Marek Vrhel, Ludìk StádníkCzech J. Anim. Sci., 2023, 68(2):64-71 | DOI: 10.17221/223/2022-CJAS
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Influence of calcium fortification on the stability of anthocyanins in strawberry pureeOriginal PaperEugene Okraku Asare, Novel Kishor Bhujel, Adam Tobolka, Tereza ©korpilová, Helena Èí¾ková, Ale¹ RajchlCzech J. Food Sci., 2024, 42(3):207-215 | DOI: 10.17221/164/2023-CJFS Anthocyanins have received an increased attention not only because of its antioxidant activity; but because fortification of food products by minerals is important due to the lack of some minerals in population. The addition of these minerals can affect the sensorial and nutritional composition of food. The influence of calcium fortification on anthocyanins and colour changes in strawberry puree were assessed by accelerated storage test. The quantification of anthocyanins was performed by high-performance liquid chromatography with diode-array detection (HPLC-DAD) and colour changes were measured spectrophotometrically (CIE L* – lightness, a* – redness, b* – yellowness). The kinetical parameters (velocity constants and activation energies) were calculated. The activation energies of degradation of anthocyanins were calculated as pelargonidin-3-glucoside (26.24 ± 0.57, 21.18 ± 1.07, and 24.53 ± 1.33 kJ·mol–1), cyanidin-3-glucoside (16.10 ± 0.96, 11.61 ± 0.74, and 13.34 ± 1.72 kJ·mol–1), and pelargonidin-3-rutinoside (8.91 ± 0.17, 7.39 ± 0.98, and 8.23 ± 1.72 kJ·mol–1) of the control sample, calcium carbonate and calcium citrate respectively. The results showed that the addition of calcium salt had a statistically significant (P ≤ 0.05) effect on the degradation of anthocyanins. |
Identification of genes for leaf rust resistance in seedlings of wheat cultivars from the Yellow-Huai Basin in China and slow rusting observations in field trialsOriginal PaperHuali Yang, Wenda Diao, Xiaocui Yan, Takele-Weldu Gebrewahid, Zaifeng Li, Zhanjun YaoCzech J. Genet. Plant Breed., 2023, 59(4):219-234 | DOI: 10.17221/9/2023-CJGPB Wheat leaf rust is a devastating disease worldwide. Identification of leaf rust resistance genes in seedlings and of genes for slow rusting are important in resistance breeding and for gene deployment to control the disease. A total of 108 wheat cultivars from the Beijing and Shandong province and a set of 36 differentials, mostly near-isogenic lines in the background of Thatcher with known leaf rust resistance genes, were tested with 20 Puccinia triticina pathotypes (FHJS1, FGBQ,PGJQ, SHJT, FHGQ, PHTT1, FHGQ, FHGQ, PHJS, THSM, FHSQ, PHST, PRSQ, FNTQ, PHGM, KHGQ, PHTT2, TGTT, FHJS2, NHHT) at the seedling stage in the greenhouse. The cultivars and differentials were also planted in the field to test their slow rusting resistance using a mixture of races at Baoding, Hebei province and Zhoukou, Henan province, for two consecutive years. Ten leaf rust resistance genes, Lr1, 9, 10, 19, 20, 24, 26, 34, 37 and 46 were identified in the 57 commercial wheat cultivars, either singly or in combination, using molecular markers. Combined, the results from gene postulation and marker detection showed that one or more of the genes Lr1, 3, 10, 14a, 14b, 26, 36, 39, 34 and 46, were present in 57 cultivars, and that no known resistance gene was present in the remaining 51 cultivars. The resistance gene Lr26 was present in 42 cultivars, and nine cultivars contained Lr1. Lr46 was present in 10 cultivars, as indicated by the presence of the closely linked marker csLV46G22. Seven genotypes were identified as possibly carrying the gene Lr39. Lr3 and 10 were found in six and four genotypes, respectively. The ggenes Lr14b and 34 were each present in three cultivars, while evidence for the presence of Lr14a and 36 was obtained in single genotypes. Finally, 12 cultivars showed slow rusting resistance at two locations in two crop seasons. The identification of leaf rust resistance genes in Chinese wheat cultivars will be helpful for gene deployment to control leaf rust. |
Effects of dose nitrogen on yield and global warming potential in a typical rice-wheat rotation system in ChinaOriginal PaperShujie Miao, Yinzheng Ma, Yue Wu, Yunfa QiaoPlant Soil Environ., 2024, 70(8):492-501 | DOI: 10.17221/25/2024-PSE A three-year field experiment was carried out to investigate the methane (CH4) and nitrous oxide (N2O) emissions and calculate the global warming potential (GWP) according to all energy input in response to the nitrogen (N) rate in the typical rice-wheat rotation system in Jiangsu, China. Four N treatments, including R220W180 (local practice), R220W140 (cutting 10% total N in wheat season), R180W180 (cutting 10% total N in rice season) and R180W140 (cutting 20% total N in rice and wheat seasons separately), were designed in the study. Results showed that annual CH4 emission was decreased by 25.7% in response to cutting 20% N, which was ascribed to the 24.6% reduction of CH4 emission in rice season (P < 0.05) compared to local practice. The mitigation of N2O emissions in R220W140 and R180R180 treatments contributed to the 8.5% and 15.7% decrease in annual N2O emission, which was the 23.5% decrease in cutting 20% N treatment compared to local practice, respectively. Specifically, under the same amount of N rate condition (10% N cutting), the transfer N from rice season (R220W140) to wheat season (R180W180) led to the 8.5% increase in N2O emission (P < 0.05). In the end, the cutting of 20% N decreased GWP and yield-scale GWP by 19% and 17%, which mainly originated from CH4 and N2O emissions. However, cutting N did not significantly decrease grain yield (P > 0.05). These results suggested that the 180 kg N/ha for rice and 140 kg N/ha for wheat in one rotation season were the beneficial N rate to achieve the co-benefit of yield and GWP in the typical rice-wheat rotation system in Jiangsu, China. |
Effects of drought stress at different stages on soluble sugar content of soybeansOriginal PaperShoukun Dong, Xinyu Zhou, Zhipeng Qu, Xiyue WangPlant Soil Environ., 2023, 69(11):500-511 | DOI: 10.17221/385/2023-PSE Drought is an important agricultural problem worldwide, which seriously affects the growth and yield of crops. To explore the effects of different degrees of drought on the soluble sugar content of soybeans, this study measured the soluble sugar content of two soybean cultivars at three growth stages under four levels of drought stress. The results showed that drought stress significantly affected the soluble sugar content, and there were differences among different growth stages and cultivars. At the seedling and flowering stages, the sucrose content of both Heinong44 and Heinong65 showed an unimodal trend and reached the maximum value at moderate drought. The increase rate was the highest in the leaves at the flowering stage, which increased by 36.18% and 25.79% compared with CK, respectively. The fructose and glucose contents were the highest during severe drought, and the fructose content increased the most in the leaves at the seedling stage, which increased by 18.05% and 17.67% compared with CK, respectively. The glucose content increased the most in the petioles at the flowering stage, reaching 40.66% and 35.24%. At the pod-filling stage, the three sugar contents of both Heinong44 and Heinong65 were the lowest at severe drought, and the sucrose and fructose contents decreased the most in the petioles, which decreased by 21.66% and 23.94%, 12.58% and 13.49% compared with CK, respectively. The glucose content decreased the most in the stems, which decreased by 11.72% and 9.66%. In addition, at each growth stage and drought treatment, the ratio of the soluble sugar content of Heinong44 was higher than that of Heinong65. |
Effects of temporal variation and grazing intensity on leaf C : N : P stoichiometry in Northwest desert, ChinaOriginal PaperHelong Yang, Yiqiang Dong, Shazhou An, Zongjiu Sun, Peiying Li, Huixia LiuPlant Soil Environ., 2024, 70(3):154-163 | DOI: 10.17221/356/2023-PSE The Seriphidium transiliense desert pasture is an important spring-autumn pasture in northern Xinjiang, China, and has been subjected to grazing by livestock at different intensities, thus resulting in widespread deterioration of its biodiversity and ecosystem services. To understand the response mechanism of stoichiometric characteristics of desert vegetation to grazing, the leaf carbon (C), nitrogen (N), phosphorus (P) and C : N : P ratios of S. transiliense were studied under different grazing intensities. The results show that the control S. transiliense leaf C, N and P contents and C : N, C : P and N : P ratios were 458.79 ± 53.5 g/kg, 20.6 ± 7.18 g/kg, 2.83 ± 1.24 g/kg, 25.69 ± 11.08, 190.28 ± 75.65 and 8.21 ± 4.01, respectively. The differences in these characteristics varied with grazing intensity in accordance with sampling time, so both factors need to be considered comprehensively. General linear model (GLM) analysis indicated that grazing intensity had a strong main effect on S. transiliense leaf C, N, and P content, C : N ratio and N : P ratio. As grazing intensity increased, the leaf N content and N : P ratio increased (P < 0.01), and the C : N ratio decreased (P < 0.01). N content was the limiting factor for the growth of S. transiliense, but the grazing intensity, sampling year and growth season each affected the degree of N limitation. Our findings suggest that the remaining moderate stocking rate was essential for sustaining desert stabilisation in Xinjiang, and although S. transiliense could adapt its nutrient content and leaf stoichiometry to the grazing intensity, N was always the limiting element for the growth of S. transiliense. |
Exploring potato diversity: A comprehensive genetic and phenotypic analysis of quantitative and qualitative traitsOriginal PaperTasnim Khandaker Samiha, Md Ataur Rahman, Saiful Islam, Nusrat Jalal, Aparna Islam, Abu Shamim Mohammad NahiyanCzech J. Genet. Plant Breed., 2024, 60(3):126-135 | DOI: 10.17221/10/2024-CJGPB For sustainable breeding in potato, a better understanding of genetic diversity within germplasm banks for sustainable breeding is needed. This study comprehensively characterised the molecular and phenotypic traits of 62 potato accessions, including advanced clones and indigenous potato varieties from Advanced Chemical Industries Limited (ACI Ltd.), Bangladesh, and 8 varieties from the Bangladesh Agricultural Research Institute (BARI). By using 9 SSR markers and 13 morphological traits, including both quantitative and qualitative traits, we observed correlation coefficients ranging from –0.3 to 0.7 for 8 quantitative traits, and Pearson's chi-square (χ2 value) ranging from 24.3 to 135.4 for 5 qualitative characteristics. Molecular analyses identified 46 unique alleles, with 93.5% polymorphism. The markers STM0031 and STM1016 had the highest PIC value of 0.9. Genetic parameters for SSR markers included effective number of alleles per locus (Ne) = 5.6, unbiased expected heterozygosity (uh) = 0.8, diversity (h) = 0.8 and Shannon’s information index (I) = 1.8. Jaccard’s similarity coefficients ranged from 0.2 to 0.8, representing significant diversity. Cluster analysis, using unweighted pair-group method with arithmetic average (UPGMA), grouped the accessions into five clusters based on SSR profiles. An association was foud between the marker STM0031 and two traits: the number of tubers per hill and the content of reducing sugars in the tubers. This study provides information on genetic diversity and marker efficacy. It will guide future breeding programmes towards the development of high-yielding and industrially valuable potato varieties. |
Price shocks without borders: Cross-sectional dependence and transmission of international agricultural prices to domestic marketsOriginal PaperKemalettin Ağızan, Zeki Bayramoğlu, Süheyla AğızanAgric. Econ. - Czech, 2026, 72(4):225-237 | DOI: 10.17221/206/2025-AGRICECON This study investigates the extent to which international agricultural price shocks are transmitted to domestic agricultural markets in both developed and developing economies. Using panel data from 13 major agricultural trading countries from 1990 to 2022, we applied cross-sectional dependence tests, fixed-effects panel regressions, and panel Granger causality analyses to examine the degree of interdependence and directionality in price movements. Our results reveal significant cross-sectional dependence, suggesting that global price shocks reverberate across the national markets. The panel regression estimates indicate a statistically significant and positive effect of international prices on domestic prices, with a stronger transmission observed in developed economies. Panel Granger causality tests confirm that global price indices significantly predict domestic price changes in most countries, although reverse causality is limited to large exporters, such as the United States, China, and Brazil. Robustness checks across sub-periods (1990–2005 vs. 2006–2022) and country groupings validate the stability and heterogeneity of the price transmission mechanisms. These findings underscore the increasingly integrated nature of food markets and the evolving dynamics of price volatility. The policy implications highlight the importance of multilateral coordination in food trade, differentiated policy tools tailored to country development levels, and the need for strategic buffering mechanisms to manage the growing global volatility in agricultural prices. |
Soil temperature dynamics in the forest shelterbelt and in the fieldOriginal PaperAneta Kohútová, Jan ©tykarJ. For. Sci., 2024, 70(11):545-559 | DOI: 10.17221/52/2024-JFS
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Phosphorus application rates affect the grain yields of different phosphorus-tolerant rice cultivars by regulating grain filling and leaf senescence characteristicsOriginal PaperDanke Zhang, Yuyang Li, Hairun Li, Haojing Li, Xihui Zhao, Jing Cao, Guowei XuPlant Soil Environ., 2025, 71(5):363-380 | DOI: 10.17221/125/2025-PSE The grain filling and physiological traits of different phosphorus-tolerant rice cultivars and phosphorus fertiliser rates have not been fully studied. A pot-growth experiment with cv. Lianjing 7 (weak phosphorus tolerance) and cv. Yongyou 2640 (strong phosphorus tolerance) was conducted using four phosphorus rates, namely, 0 (P0), 0.44 (P1), 0.88 (P2), and 1.32 g/pot (P3). Results indicated that grain yield, net photosynthetic rate, soil and plant analyser development (SPAD) value, superoxide dismutase (SOD) and catalase (CAT) activity in leaves, and adenosine diphosphate glucose pyrophosphorylase (AGPase) and sucrose synthase (SuSase) activity in grains increased and then decreased with increasing phosphorus fertiliser rate, whereas malondialdehyde (MDA) content in leaves decreased first and then increased. The above indexes of cv. Lianjing 7 and cv. Yongyou 2640 were optimal at P2 and P1 treatments, respectively. The grain yield, net photosynthetic rate, SPAD value, AGPase content, SuSase content in grains, and SOD and CAT activity in the leaves of cv. Yongyou 2640 were higher, whereas the MDA content was lower than those of cv. Lianjing 7. Correlation analysis showed that AGPase and SuSase activity in superior and inferior grains, photosynthetic rate, and SOD and CAT activity in the leaves were significant or highly significantly positively correlated with grain-filling rate and rice yield. Therefore, the adoption of appropriate phosphorus fertiliser rates can increase the activity of enzymes related to starch synthesis in different phosphorus-tolerant rice, enhance antioxidant systems in leaves at the filling stage, reduce leaf MDA content, and delay leaf senescence. These effects are beneficial to grain filling and increase grain yield. |
Revealing the challenges and prospects of Asian rice gall midge resistance in riceReviewSivasubramaniyan Sathishkumar, Loganathan Arul, Swaminathan Manonmani, Sheela Venugopal, Jagadeesan RamalingamPlant Protect. Sci., 2025, 61(4):305-325 | DOI: 10.17221/159/2024-PPS
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The impact of pre-dry-off weather patterns on subsequent lactation udder health in dairy cows, and their comparison with milkability, milk quality and udder health parameters – A pilot studyOriginal PaperMatú¹ Ga¹parík, Jaromír Ducháèek, Ludìk Stádník, Radim Codl, Iveta Szencziová, Kateøina Cihláøová, Nikola Mare¹ováCzech J. Anim. Sci., 2026, 71(1):21-29 | DOI: 10.17221/169/2025-CJAS
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Somatic embryogenesis and in vitro plant regeneration of Manzano (AAB) and Pelipita (ABB) banana cultivarsOriginal PaperAdrián José Enríquez-Valencia, Martín Mata-Rosas, Claudia-Anahí Pérez-Torres, Enrique Ibarra-Laclette[Ahead of Print]CAAS Agricultural Journals, X:X | DOI: 10.17221/35/2025-HORTSCI There is significant interest in the propagation of bananas due to their substantial global economic importance, which is why this study aimed to develop an efficient protocol for in vitro propagation through somatic embryogenesis (SE) of the ‘Manzano’ and ‘Pelipita’ cultivars. Immature male flower bud explants were used for embryogenic callus induction. The ‘Manzano’ cultivar showed a higher percentage of embryogenic callus induction than ‘Pelipita’. Stereomicroscopic observations revealed that the embryogenic callus was asynchronous, as various stages of somatic embryos were noted. White translucent pro-embryogenic callus was efficiently utilized to establish embryogenic cell suspension. The development of different stages in the regeneration process of embryogenic cell suspension was also recorded. Embryos in the late coleoptilar stage, characterized by an opaque white morphology, were selected and transferred to an appropriate medium to evaluate the germination percentage. We found that the germination rate was highly efficient for both cultivars, exceeding 90% when using these embryos in the selected stage. Additionally, we observed that embryos that were 90 days old showed a 10–12% increase in germination compared to those that were 60 days old, confirming the importance of embryo maturation duration and the selection of embryogenic aggregates through the sieving of suspended cells to optimize regeneration efficiency. |
A spectral signature-based algorithm for the identifiability of crops and their cultivation conditionsOriginal PaperSarah El Azizi, Halima Taia, Abdes-Samed Bernoussi, Mina Amharref, Edyta WozniakRes. Agr. Eng., 2026, 72(1):56-69 | DOI: 10.17221/163/2025-RAE Recent advancements in remote sensing techniques, especially the combination of hyperspectral imaging with analytical algorithms, have greatly improved precision agriculture. This study introduces some algorithms developed for identifying crops and evaluating their growth conditions, focusing on irrigation and fertilisation. The present approach is based on the concept of identifiability of a family of dynamic systems and the differentiation of plants using their spectral signatures. The method uses a repository of spectral data and applies a developed algorithm to compare the measured spectra with the reference database, enabling the identifiability and the recognition of both known and unknown crops. As an application of our approach, we have considered two different crops: mint and rosemary, under different irrigation and fertilisation conditions. The results show that the algorithm achieved a 100% identification rate across the four unknown samples. The minimum spectral distances obtained are 0.01 and 0.03 for rosemary and mint, respectively. Thus, the family of systems was identifiable with a tolerance of η < 0.03. The study concluded that the algorithm effectively classifies the crop type and deduces its growth conditions, demonstrating its effectiveness for agricultural monitoring. |
Root yield and technological quality of sugar beet as affected by harvest time under the conditions of the Western Forest-Steppe of UkraineOriginal PaperDmytro Kyselov, Svitlana Kalenska, Bohdan MazurenkoPlant Soil Environ., 2026, 72(4):259-270 | DOI: 10.17221/105/2026-PSE This study evaluated the effects of hybrid, vegetation period duration, weather conditions, and harvest timing on sugar beet (Beta vulgaris L.) yield and technological quality under short-rotation cropping systems in the Western Forest-Steppe of Ukraine. Field experiments were conducted in 2022–2024 on commercial fields using six industrial hybrids and five harvest intervals from late September to mid-November. Root yield, sugar content, sugar yield, α-amino nitrogen, K+ and Na+, invert sugars, and the technological quality index (Iq) were assessed using ANOVA, correlation analysis, and principal component analysis (PCA). Extending vegetation from 185 to 200 days increased root yield by 11–12% and sugar yield by 0.8–1.2 t/ha. The optimal harvest window (10–25 October) provided the highest performance, with root yields of 68–73 t/ha, sugar content of 16.2–16.6%, and sugar yields of 14.6–16.3 t/ha. Early harvest resulted in reduced sugar content and Iq, whereas harvesting after 10 November did not increase yield and caused deterioration of technological quality due to elevated α-amino nitrogen and molasses-forming ions. PCA showed that over 85% of the total variation was explained by technological quality and moisture-related factors. Strube hybrids demonstrated greater stability under extended vegetation compared with KWS hybrids. These results define an optimal harvest window for maximising sugar beet productivity and quality under temperate meteorological conditions. |
Bridging credit gaps for sustainable agriculture: The role of rural savings and credit cooperatives among smallholder farmersOriginal PaperGershom Endelani Mwalupaso, Shangao Wang, Xianhui Geng, Shadrack KipkogeiAgric. Econ. - Czech, 2025, 71(5):254-272 | DOI: 10.17221/436/2024-AGRICECON Despite the recognised benefits of climate smart agriculture (CSA) in enhancing farmers' adaptive capacity to climate risks, adoption rates remain low in Sub-Saharan Africa. This disparity can be attributed, in part, to the significant challenges smallholder farmers face in accessing credit from the formal financial sector. In response, Rural Saving and Credit Cooperatives (RUSACCOs) have emerged as crucial sources of funding for both household expenses and agricultural activities. However, despite their increasing importance in improving financial inclusion, little is known about whether participation in RUSACCOs can help alleviate existing credit constraints and promote the adoption of CSA among smallholder farmers. To address this knowledge gap, we employ a recursive bivariate probit (RBP) and propensity score matching (PSM) analysis using data from 400 randomly selected smallholder farmers in Zambia. The analysis controls for three main sources of endogeneity: program placement, endogenous covariates, and self-selection. Our findings indicate that participation in RUSACCOs has the potential to mitigate farmers' credit constraints by 42% and facilitate CSA adoption by 25%. Notably, the alleviation of existing credit constraints is associated with a 14% increase in CSA adoption. These results underscore the previously overlooked role of RUSACCOs in promoting agricultural sustainability. By effectively addressing financial inclusion barriers and providing access to practical agricultural knowledge, RUSACCOs can contribute to reducing the vulnerability of agriculture while fostering sustainable production. Our study suggests that repurposing RUSACCOs to emphasise financial inclusion and promote access to agricultural learning platforms can yield triple benefits: agricultural, environmental, and livelihood sustainability. |
Influences of plants and soil microbes on antibiotics in the rhizosphere: a reviewReviewJingfang Li, Liang Chen, Song Jin, Linxian Huang, Huihua ChenPlant Soil Environ., 2025, 71(2):67-92 | DOI: 10.17221/350/2024-PSE The rhizosphere plays an important role in both farmland and urban areas, affecting water quantity and quality during surface water infiltration by increasing the heterogeneity of the aeration zone. The extensive application of antibiotics, their recalcitrance to degradation, and the resultant accumulation of antibiotics in soil-microbe-plant systems represent significant threats to the rhizosphere system, thereby threatening ecological stability and environmental and human health. This review synthesises recent findings on the migration and transformation of typical and common antibiotics within the rhizosphere. The main findings include that the absorption of antibiotics by plants is influenced by their molecular weight (MW) and octanol-water partition coefficient (log Kow), allowing antibiotics to be divided into three classes: (1) antibiotics with high lipophilicity (log Kow > 2) are mostly adsorbed by root lipids and rarely participate in the soil-plant transport process; (2) antibiotics with log Kow < 2 and high MWs (MW > 700) are blocked outside the plant roots; and (3) antibiotics with log Kow < 2 and low MWs (MW < 700) can enter plants through the roots and are transported via transpiration flow in plants. Antibiotics with log Kow < 1 are more easily transported into plant tissues, including leaves. The rhizospheric microorganisms capable of participating in antibiotic migration and transformation are concentrated in Actinobacteria, Firmicutes, Proteobacteria, and Bacteroidetes. The inhibitory effect of antibiotics on dehydrogenase, sucrase, urease, catalase, and alkaline phosphatase activities surpasses their promoting effect, reducing these enzyme activities by 6–35% on average. However, the promoting effect of antibiotics on peroxidase, acidic phosphatase, and manganese peroxidase outweighs the inhibitory effect, increasing enzyme activity by 2–23%. Furthermore, it is essential to consider the effects of plant age and root characteristics on antibiotic migration and transformation. The results of this review contribute to a better understanding of the migration and transformation of antibiotics within the rhizosphere. |
Mitigating methane in dairy cattle: Integrated strategies and the evolving role of precision livestock farmingReviewEva Mixtajová, Joana Nery, Radovan Kasarda, Muzaffer Denlí, Achille Schiavone, Alkan Çağlı, José Francisco Pérez, Hasan Hüseyin İpçak, JoCzech J. Anim. Sci., 2026, 71(2):41-58 | DOI: 10.17221/116/2025-CJAS
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Can sustainable practices optimise fertiliser use and economic efficiency? A micro-panel analysisOriginal PaperFaruque As Sunny, Juping Lan, Mohammad Ariful IslamAgric. Econ. - Czech, 2026, 72(1):1-18 | DOI: 10.17221/473/2024-AGRICECON The intensification of agricultural practices in Bangladesh has caused significant environmental challenges. This has also undermined farmers' economic sustainability, mainly due to the excessive use of subsidised chemical fertilisers. To address these issues and align with the United Nations Sustainable Development Goals (SDGs), Bangladesh has prioritised the adoption of sustainable farming practices, including the recommended fertiliser application (RFA). However, whether the adoption of RFA ensures economic sustainability remains uncertain. This study evaluates how the Bangladesh Rice Research Institute's (BRRI) proposed RFA affects fertiliser use and cost-efficiency. Drawing on five years (2017–2021) of panel data from 2 025 households across three acidic soil regions in Dinajpur, the findings reveal that RFA adoption reduces fertiliser use by 12% while improving cost efficiency by 4.9–5.1%. These results highlight the potential of RFA to mitigate environmental degradation while enhancing economic outcomes, thereby supporting the SDG agenda. In light of these benefits, the study offers key insights for policymakers and development practitioners, emphasising the need for targeted interventions to accelerate RFA adoption and promote sustainable agriculture. |
Secondary antibody therapy outperforms corticosteroids in an ameliorating lipopolysaccharide-induced rat model of premature ovarian failureOriginal PaperAA Zaki, SM AlbarrakVet Med - Czech, 2026, 71(3):117-128 | DOI: 10.17221/66/2025-VETMED Premature ovarian failure (POF) is a significant cause of infertility and is often linked to autoimmune aetiologies. Lipopolysaccharide (LPS)-induced inflammation is a well-established model of autoimmune POF in rodents. Immunomodulatory treatments involving corticosteroids, frankincense, and targeted secondary antibodies have been hypothesised to mitigate the autoimmune response, reduce anti-ovarian antibody (AOA) levels, and restore ovarian function in an LPS-induced POF rat model. A POF model was established in female albino rats via the intraperitoneal injection of LPS. The rats were then divided into groups that received no treatment (LPS control), dexamethasone (DEX-treated LPS-treated rats), methylprednisolone (MP-treated LPS-treated rats), frankincense (Frankincense-treated LPS-treated rats), or secondary anti-ovarian antibodies (secondary Ab-treated LPS-treated rats) for 3 to 4 weeks. The serum levels of AOA, 17β-oestradiol, follicle-stimulating hormone (FSH), and luteinising hormone (LH) were assayed via commercial enzyme-linked immunosorbent assay (ELISA) kits. Ovarian tissues were examined histopathologically to assess structural damage and recovery. LPS induction successfully created a POF phenotype, as evidenced by significantly elevated AOA levels (P < 0.001), reduced 17β-oestradiol (P < 0.001), elevated FSH/LH (P < 0.001 and P < 0.05, respectively), and severe histopathological damage, including follicular atresia. All the treatments restored 17β-oestradiol levels. Secondary antibody therapy was most effective, normalising all hormonal parameters, significantly reducing AOA levels, and demonstrating complete histological recovery with healthy follicles and corpora lutea. MP potently suppressed AOA but paradoxically elevated FSH, without improving ovarian histology. DEX and frankincense showed intermediate efficacy, improving some hormonal and serological markers but failing to achieve full histological restoration. These findings demonstrate that targeted immunotherapy using secondary antibodies is superior to broad immunosuppression or anti-inflammatory treatment for restoring ovarian function in patients with autoimmune POF. While corticosteroids effectively reduce AOA titres, they may not reverse ovarian damage and can disrupt the hormonal balance. This underscores the need for precise, biomarker-guided therapies over nonspecific immunosuppression in patients with autoimmune ovarian insufficiency. |
Effects of BRCA1 and TLR1 SNPs on milk production performance and somatic cell score in Holstein, Simmental and crossbred Holstein cattleOriginal PaperMaja Mauriæ Maljkoviæ, Tomislav Ma¹ek, Marija ©pehar, Kristina StarèeviæCzech J. Anim. Sci., 2025, 70(7):267-275 | DOI: 10.17221/43/2025-CJAS
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