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Results 1261 to 1290 of 4598:

Diversity of the bovine genes IRAK1 and IRAK4 in the Toll-like receptor signaling pathwayOriginal Paper

Ladislav Tichý, Karel Novák, Jitka Kyselová, Michaela Pøibáòová, Jan Calta, Lubo¹ Vostrý

Czech J. Anim. Sci., 2023, 68(8):323-332 | DOI: 10.17221/137/2022-CJAS


Innate immunity is the organism’s first line of defence, and the receptors of immune cells play a key role. Interleukin 1 receptor-associated kinase 1 and 4 (IRAK1 and IRAK4) are necessary for signal transmission from Toll-like receptors, which are the most important receptors of immune cells. The main objective of this study was to investigate the gene polymorphisms of IRAK1 and IRAK4 in Czech Fleckvieh cattle (CF) and to compare their diversity with other cattle breeds as there is still little information about these genes. PacBio Technology of next-generation sequencing (NGS) was used to detect genetic variability in 164 CF bulls. The results revealed 17 single nucleotide variants (SNVs) in the IRAK1 gene and 12 SNVs and three deletions in the IRAK4 gene. Three methods were then used to determine allelic variability: Sanger sequencing, the primer extension method and Illumina DNA BeadChip microarray in cooperation with the Czech Moravian Breeder’s Corporation. Sanger sequencing enabled analysis of the population variability in single nucleotide polymorphisms (SNPs) rs210710958 and rs48726521 of IRAK1 in 164 CF bulls. SNaPshot genotyping was employed to determine the allelic frequencies of SNP rs211379365 and a novel polymorphism in IRAK1, and rs380202447 in the IRAK4 gene. DNA microarray method, which was applied to 74 CF dairy cows, revealed the allelic frequency of IRAK1 rs110533802 including the frequency 0.07 of mutant allele T. Additional microarray data allowed the comparison of the allelic frequencies among the Czech and Hungarian populations of Holstein dairy cows and beef breed populations. The results show that the functionally significant diversity in the IRAK1 and IRAK4 genes in the studied CF population is rather limited. The higher frequency 0.4 of the T mutant allele of SNP rs110533802 of IRAK1 in Holstein cattle could be the consequence of breeding for milk performance.

Seasonal dynamics and abundance of brown marmorated stink bug Halyomorpha halys (Stål) on four trap cropsOriginal Paper

Luka Batistiè, Tanja Bohinc, Stanislav Trdan

Plant Protect. Sci., 2023, 59(3):264-277 | DOI: 10.17221/2/2023-PPS

The main purpose of the study was to examine the potential of crops, such as soybeans (Glycine max), sunflowers (Helianthus annuus), alfalfa (Medicago sativa), and sorghum (Sorghum bicolor), as trap crops for Halyomorpha halys. We monitored the abundance and seasonal dynamics of H. halys (egg clusters, larvae, and adults) on a selected number of various crops at 10-day intervals. The experiment was performed in two different regions of Slovenia (western and central) and in two different years (2021, 2022). The results varied depending on the location and the year. In the first experiment, data from the entire year showed that sorghum was the most attractive for H. halys adults (1.56 ± 0.12), followed by sunflowers (0.61 ± 0.05), soybeans (0.37 ± 0.03) and alfalfa (0.41 ± 0.21). In the second experiment, the abundance numbers of the pest were significantly lower compared to those of the first experiment [sorghum and soybeans (0.003 3 ± 0.002), sunflowers (0.000 3 ± 0.000 3)]. In both cases, the abundance numbers increased when all the crops entered the fruit development stage (BBCH 70+). Overall, the lower density of the H. halys population and the experimental design could also be some of the factors for such a low incidence of stink bugs in the central region of the country. More research will be needed to further develop effective control methods for this invasive pest.

Polymorphism of the PGLYRP1 gene, the value of selected performance and functional traits, and causes of culling in Holstein-Friesian red-white cowsOriginal Paper

Piotr Sablik, Andrzej Dybus, Ewa Janu¶, B³a¿ej Nowak, Wojciech Kruszyñski, Anna Mucha

Czech J. Anim. Sci., 2023, 68(10):399-406 | DOI: 10.17221/194/2022-CJAS

This research paper addresses the hypothesis that the peptidoglycan recognition protein 1 (PGLYRP1) gene polymorphism (Tyr76His; dbSNP ID: ss104796364) has an influence on some performance traits and causes of culling in Polish Holstein-Friesian red-white cows. The study involved 134 cows kept on a farm in the south-west of Poland. PGLYRP1 genotypes TT, CT, and CC were detected. It was shown that compared with cows with genotypes CT and TT, the individuals with genotype CC were characterised by higher lifetime yields and higher amounts of lactation milk, fat, and protein. A beneficial effect of genotype CC, compared with genotype TT, was also noted in the case of the lifespan and, consequently, the length of the productive life and the average number of lactations. Diseases of the musculoskeletal system (genotypes CC and TT) and disorders of the reproductive system (genotype CT) were the most common causes of culling. An essential practical observation was the potentially higher susceptibility of cows with genotype CC to mastitis, which resulted in the necessity to cull over one-fifth of the animals in this group. Simultaneously, no cows in this group were culled due to low performance or metabolic, gastrointestinal, and respiratory diseases. Therefore, the PGLYRP1 gene seems to be a promising potential herd health marker; however, to consider it the main gene, it is necessary to extend the investigations to include more individuals and other breeds of dairy cattle.

Physical, mechanical, and antioxidant properties of alginate/pectin edible films with incorporated chokeberry and wild thyme extractsOriginal Paper

Svetla Maksimova Dyankova*, Ayten Osman Solak

Czech J. Food Sci., 2023, 41(5):367-374 | DOI: 10.17221/94/2023-CJFS


The purpose of the present study was to develop edible composite films based on sodium alginate and pectin with incorporated Aronia melanocarpa (Michx.) Elliot and Thymus serpyllum L. extracts. The influence of the extracts on the physicochemical, optical, mechanical, and antioxidant properties of the films was investigated. The addition of the extracts changed the colour parameters and significantly increased the barrier properties to UV and visible light. This effect is more pronounced in the film with chokeberry extract and is due to the anthocyanins contained in it (75.43 μg cyd eq·g–1, cyd eq – cyanidin equivalents). The antioxidant activity of films with incorporated extracts was 4-fold (thyme) to 7-fold (chokeberry) higher than the control alginate/pectin film. A significant improvement in the mechanical characteristics of the films with extracts was found. The values for tensile strength were 9.41 MPa (chokeberry) and 9.54 MPa (thyme), while for the film without extract – 4.63 MPa. The resulting films could find potential application as active packaging with antioxidant properties, which could increase the quality and extend the shelf life of the foods packaged in them.

A case study of agri-food systems in rural Spain: Impacts, responses and institutional lessonsCase Study

Raquel Fernández-González, Félix Puíme-Guillén, Mirela Panait

Agric. Econ. - Czech, 2022, 68(5):159-170 | DOI: 10.17221/65/2022-AGRICECON

Galicia is one of Spain's leading regions regarding agricultural and livestock production. In the light of the COVID-19 crisis, the permeability to the economic shocks of these sectors led to an unprecedented recession, given the heterogeneity of their characteristics, resulting in widespread losses. The main objective of this article is to analyze the impact of COVID-19 in the agricultural and livestock sectors in Galicia and, at the same time, identify the degree of affectation in each of these sectors, determine the impact of the pandemic in each province and study the institutional responses to the COVID-19 crisis. For this purpose, financial analysis of these sectors will be carried out through a sample of 998 companies. The results show a variation in operating income of -16.41% in the agricultural sector and -9.15% in the livestock sector in Galicia, although they are mixed across the different provinces of the region. Despite the articulation of a network of public aids and the adoption of new commercialization strategies, there are sub-sectors with high losses, such as the ornamental plant industry and the subsector dedicated to the production of beef.

Detection and molecular identification of ‘Candidatus Phytoplasma asteris’ associated with muscari virescence of three grape hyacinth speciesShort Communication

Emese Mergenthaler, József Fodor, János Ágoston, Orsolya Viczián

Plant Protect. Sci., 2023, 59(4):389-393 | DOI: 10.17221/70/2023-PPS

Grape hyacinths are popular perennial, flowering bulbous plants. In 2018, 2019, and 2020, some plants of three Muscari species showed symptoms similar to those associated with phytoplasma infection in commercial ornamental gardens in Hungary. Symptoms included virescence of flowers and yellowing of leaves. Symptomatic and asymptomatic Muscari plants were sampled at two locations to detect and identify the pathogens involved. Total DNA was extracted from the plants and used as a template in polymerase chain reaction assays to amplify 16S rRNA gene sequences and housekeeping genes (tuf, secY) with phytoplasma-specific primers. The resulting PCR products from symptomatic plants were cloned and sequenced bidirectionally. Homology searching of the obtained sequences against the GenBank database indicated the presence of  'Candidatus Phytoplasma asteris' in the three Muscari species. This is the first report worldwide of C. P. asteris phytoplasma infecting M. botryoides and M. comosum, and its first identification in M. armeniacum in Hungary.

Differences in the removal efficiency of heavy metals in soils with different vegetation backgrounds along the China-Russia crude oil pipelineOriginal Paper

Shiyi Chen, Cunyong Ju, Yang Du, Tianqi Mu, Tijiu Cai

Plant Soil Environ., 2023, 69(12):628-639 | DOI: 10.17221/361/2023-PSE

This work discusses the differences in the removal efficiency of heavy metals in soils along the China-Russia crude oil pipeline in different vegetation backgrounds. In this paper, two representative forest types, birch forest and larch forest, were selected for replicated sampling and experimental study in the soil of disturbed and undisturbed areas along the pipeline, respectively. The results showed that after ten years of vegetation restoration, the amount of heavy metals in the soil of birch and larch forests decreased, the Cu content in the soil under the background of the birch forest was higher than that of the larch forest, while the Zn, Mn and Pb contents were lower than that of the larch forest. The order of decreasing magnitude was Mn, Pb, Zn and Cu, and the overall decreasing rate of heavy metal content in larch forest soil was more obvious. The above conclusions indicate that vegetation restoration is an effective measure to alleviate soil heavy metal pollution.

Polyglutamic acid as a vase life improver for cut liliesOriginal Paper

Huiping Zhou

Hort. Sci. (Prague), 2023, 50(4):308-314 | DOI: 10.17221/148/2022-HORTSCI

The vase life of cut lilies is short. Improving the vase life is very important to keep this kind of cut flower fresh by using exogenous improvers. The aim of this study was to elucidate the effectiveness of polyglutamic acid (PGA) on the vase life of cut lilies, in order to introduce a new vase life improver for cut lilies. The results demonstrated that PGA significantly strengthened the antioxidant capacity by enhancing the antioxidant activities (superoxide dismutase, peroxidase, catalase, ascorbate peroxidase, glutathione peroxidase and glutathione S-transferase) and the antioxidant contents (total phenolics, total flavonoids, total anthocyanin and vitamin C), which further decreased the electrolyte leakage and the malondialdehyde and hydrogen peroxide contents. Meanwhile, the PGA significantly maintained the water balance by decreasing the water saturation deficit and increasing the relative water content and the soluble sugar and proline contents, as well as the average fresh weight change rate and average water balance value of the cut flower. Besides, the PGA significantly decreased the wilted flower numbers and increased the open flower numbers, flower diameter and the vase life of lily cut flower. The above findings provided useful information for the potential application of PGA as a new vase life improver for cut lilies.

Differences in the anatomy of the lower respiratory tract in selected species of the order TestudinesOriginal Paper

M Habova, M Pyszko, O Horak, E Cermakova, V Paral

Vet Med - Czech, 2022, 67(2):78-86 | DOI: 10.17221/64/2021-VETMED

The lower airways of turtles consist of the larynx, trachea and bronchi. Due to incomplete information about the anatomical structure of the lower respiratory tract in turtles, we decided to explore this topic more deeply. The material for this study included 95 turtle cadavers. Terrestrial tortoises were represented by 63 individuals from 8 species, aquatic and semi-aquatic turtles by 32 individuals from 11 species. The sex ratio was 54 females to 41 males. In addition to the anatomical autopsies and assessments of the macroscopic structures, numerous measurements were performed. The length, width and height of the larynx and trachea, and the length of the bronchi were measured. We found clinical significance in two parameters. The first one is the formation of the rima glottidis, which is significantly shorter and narrower in the aquatic turtles than in the terrestrial tortoises. It follows that for these species, we should use a smaller diameter of endotracheal cannula for intubation. The second parameter is a very short trachea in tortoises of the genus Testudo. The length of the trachea is only a few centimetres, which significantly increases the risk of intubation into one bronchus only.

Relationships between gilt development and herd production efficiency are revealed by simulationOriginal Paper

Han Zhang, Zhexi Liu, Yijun Liu, Depeng Wang, Ji Wang, Keliang Wu

Czech J. Anim. Sci., 2023, 68(3):122-128 | DOI: 10.17221/127/2022-CJAS


The gilt development level is a critical factor for profitability in the pig industry. To evaluate the impact of different gilt development levels on the age structure and production efficiency of female herds we used the performance data of a pig farm that was simulated over a ten-year period, with current production statistics from the Chinese pig industry as a basis for the model. In a herd of 600 breeding sows, we compared age structure, number born alive (NBA), longevity and sow lifetime productivity in three scenarios with gilt culling rates of 10%, 20%, and 30%. The results show that the gilt development has no significant effects on the age structure. The gilt development had no significant effects either on sow reproductive performance or production efficiency. However, the annual replacement rate, longevity, and sow lifetime productivity varied significantly in the three levels of gilt development (< 0.01). We conclude that the gilt development is closely related to herd turnover and reproductive performance, and ultimately affects the cost of pig production. Gilt development is, therefore, an extremely important factor in an integrated pig production system.

Agricultural commodity markets and the Turn of the month effectOriginal Paper

Peter Árendá¹, Jana Kotlebová

Agric. Econ. - Czech, 2023, 69(3):101-108 | DOI: 10.17221/17/2023-AGRICECON


The Turn of the month (ToM) effect is a calendar anomaly when the majority of returns of an asset are concentrated into several days around the end of the old month and the start of the new one. Until now, the investigation of the ToM effect has mainly been focused on the stock markets. However, this paper investigates the presence of the ToM effect in eight key agricultural commodity markets (cocoa, coffee, corn, cotton, rice, soybean, sugar, wheat), using three different alternatives of the ToM window, during the 2001–2021 time period. The results show a statistically significant ToM effect in the rice, coffee, and sugar markets. Further results show that the ToM pattern changed during the COVID-19 pandemic, and that, in the case of commodities with a statistically significant ToM effect, the ToM effect can be efficiently used to beat the buy & hold investment strategy convincingly.

Morphological and molecular characterization of Neoscytalidium isolates that cause canker and dieback in Eucalyptus and Chinaberry trees in IraqOriginal Paper

Dleen Naji Abdulrahman, Raed A. Haleem

Plant Protect. Sci., 2023, 59(1):92-105 | DOI: 10.17221/82/2022-PPS


Neoscytalidium Dimidiatum isolates are the most pathogens associated with sooty canker and dieback in the stem and twigs of Eucalyptus and Chinaberry trees in the Kurdistan region of Iraq. Young trees showed branch dieback and yellowing leaves. The symptoms were further developed to sooty canker and dieback appeared on the main branch and trunk. N. dimidiatum colonies on potato dextrose agar were dense white at first and became dark gray to black within seven to ten days. Arthric dark brown conidia (6.6x 4.3 µm) were observed in the chain of mycelium. The color of the colonies was white at the beginning, then eventually turned greenish in seven days, and finally became black. The fungus produced white to olivaceous aerial mycelium with chains of chlamydospores and arthroconidia. Conidia were initially hyaline, ellipsoidal to globose, 4.1-9.8 m × 2.8-3.5m, with muriform septa. The inoculated Eucalyptus and Chinaberry seedlings displayed necrosis streaks along with the barks and xylem of the inoculation points. Combined dataset of internal transcribed spacer (ITS), Nuclear Ribosomal Large Subunite (LSU), and Beta tublin 2a (Bt2a) using Maximum Likelihood and Maximum Parsimony analysis support the monophyletic on Neoscytalidium dimidiatum isolates from Iraq (N. hyalinum (No. B21), and Neoscytalidium novaehollandiae (No. B22)). This is the first time to report Neoscytalidium dimidiatum on Chinaberry in Iraq.

Vermiliquer as a biostimulant and antioxidant in hydroponic lettuce (Lactuca sativa) productionOriginal Paper

Adrian Esteban Ortega-Torres, Tomás Sabino Herrera-Matallana, Enrique Rico-García

Hort. Sci. (Prague), 2023, 50(1):25-31 | DOI: 10.17221/5/2022-HORTSCI

The use of vermiliquers obtained from earthworm in hydroponic crops is well received as alternative for fertilization of leafy vegetables. The vermiliquer boosts growth, defense compounds and increases the uptake of nutrients and minerals by plants. The growth and enzymatic activities related to stress and phenolic compounds were explored in hydroponic lettuce crops treated with different concentrations of vermiliquer. The treatments consisted in three different vermiliquer, a Mesh Vermiwash, a Direct Vermiwash, and the Vermileachate, and its combinations as a complement for complete fertilization. The addition of vermiliquer to hydroponic lettuce affected the leaf and root fresh weight, and reactive oxygen species like superoxide dismutase (SOD) or phenylalanine ammonia-lyase (PAL). Vermileachate (Vl) plus Direct Vermiwash treatment was higher in the first week in leaf and root lettuce, indicating an effect biostimulant. Vl gave the highest enzymatic activity in SOD and PAL, indicating an effect elicitor. In summary, vermiwash proved to improve hydroponic lettuce crop and enzymatic activities related to stress.


Formation of sensory active substances during ripening of Dutch-type cheese with reduced salt contentOriginal Paper

Irena Nìmeèková, ©árka Tre¹lová, Helena Èí¾ková, Tereza Rambousková, Jan Forejt, Zdenìk ©vandrlík, Vojtìch Kru¾ík, Dana Gabrovská

Czech J. Food Sci., 2023, 41(2):103-110 | DOI: 10.17221/239/2022-CJFS

The reduction of NaCl content in cheeses is nutritionally desirable but quite challenging due to NaCl's key role during cheese production and ripening. We focused on reformulated Dutch-type cheeses ripened for 120 days and their microbiological and sensory characteristics, including of determining organic acids (electrophoresis) and volatile substances (SPME-GC-MS analysis). Experimental batches contained 0.64, 0.90, and 1.19% NaCl or 0.77% NaCl together with 0.33% KCl. The influence of salts on lactose and citrate metabolism (the formation of lactic, acetic, and formic acid, ethanol, diacetyl, acetoin and 2,3-butanediol), proteolysis (the formation of glutamic acid), lipolysis and β-oxidation of fatty acids (the formation of 2-butanone, 2-butanol, hexanal, hexanoic and octanoic acid) was undetected. Contrarily, brining conditions affected the contamination of cheese surfaces with yeasts and halotolerant microorganisms and cheese consistency. While a typical consistency was formed only in the cheeses with 1.19% NaCl acceptable saltiness was declared in the cheeses with the content of salts 0.90% or higher. The partial replacement of NaCl with KCl caused metallic off-taste in the cheeses that ripened longer than Consistent acceptance seems to be the most limiting factor for the tested reformulation appears.

Psychoactive substances in soils, plants, freshwater and fish: A mini reviewReview

Kateøina Vejvodová, Radka Kode¹ová, Pavel Horký, Lubo¹ Borùvka, Pavel Tlusto¹

Soil & Water Res., 2023, 18(3):139-157 | DOI: 10.17221/58/2023-SWR

This review focuses on the behaviour of four psychoactive compounds (carbamazepine, tramadol, sertraline and citalopram) in the environment. The review presents how they may directly affect freshwater systems, soils and living organisms and to which extent. The transformation of these very stable compounds in soils were controlled by oxidation, demethylation, decarboxylation and hydroxylation. Sorption to organic matter and clay particles controlled their mobility. Despite their expected sorption in soils, sediments and sludge, all compounds can be taken up by plants and by fish. In plants, all compounds and several of their metabolites were found in the leaves, indicating the mobility and transformation of the compounds within the plant systems. Factors that control the compounds mobility in plants were found to be the pH of soils and the xylem flow. As for fish, many of the compounds were found in the brain and muscles of fish, some of which, depending on the species, affected the behaviour of the fish. The implications of these compounds so widely present in the environment indicate the need for certain measures to be put into place to prevent these compounds from continuously entering plant and animal systems.

Assessment of the effect of optimised field plot size on the crop yieldOriginal Paper

Jakub Elbl, Antonín Kintl, Martin Brtnický, Petr ©irùèek, Jiøí Mezera, Vladimír Smutný, Jan Vopravil, Jiøí Holátko, Igor Huòady, Vojtìch Lukas

Plant Soil Environ., 2023, 69(10):447-462 | DOI: 10.17221/262/2023-PSE

The presented research deals with the effect of plot size changes on the crop yield. Three plots were chosen in a company engaged in conventional agriculture, on which yields were monitored from 2019 using yield maps. In 2020, the plots (initial size > 30 ha) were divided into different parts sized < 30 ha. In 2021, these newly arisen parts of the plots were harvested. Changes in the yield of grown crops were analysed using yield maps acquired by the harvesting machines. Relative yields (%) and absolute yields (t/ha) were determined on all experimental land parts arising from the initial plots’ division. The values were then compared with yields recorded before the division of individual plots using zonal statistics. Measured relative yield values clearly show (P < 0.05) that the division of plots resulted in the increased heterogeneity of crop yields. On the initial plots as well as on the newly arisen plots, the relative yield was divided into the following categories: < 70, 70–85, 85–95, 95–105, 105–115, 115–130 and > 130%, with the value of 100% representing average yield. The analysis of measured yield data showed that the division of plots into smaller parts resulted in an uneven yield distribution because if a divided plot was heterogeneous in terms of yield levels, a cumulation of "higher yield levels (> 100%)" could have occurred in one specific newly arisen plot at the expense of another one. Moreover, new marginal parts of lands came into being during the division of larger soil complexes, and hence zones with potentially reduced yields.

Chemical composition of dietary alfalfa and its effectiveness on broiler chicken thigh meat qualityOriginal Paper

Petru Alexandru Vlaicu, Arabela Elena Untea, Raluca Paula Turcu, Mihaela Saracila, Iulia Varzaru, Alexandra Gabriela Oancea

Czech J. Food Sci., 2023, 41(4):279-286 | DOI: 10.17221/79/2023-CJFS



This study aimed to evaluate alfalfa meal's chemical and nutritional composition and effectiveness on broiler chicken thigh meat quality. Alfalfa contains significant content of crude protein and fibre, minerals (iron and zinc), polyunsaturated fatty acids (PUFA), and antioxidant compounds, especially total antioxidant capacity (TAC) and total polyphenols content (TPC). To test its effectiveness on chicken tight meat quality, we developed a trial on 60 Cobb 500 broilers, divided into two groups of 30 animals each and fed during growing-finishing phases (11–42 days) a control diet (C) and an experimental diet (A), in which 5% alfalfa meal was added. At the end of the trial, six animals from each group were selected for slaughter and sampling. The analyses on meat samples revealed that alfalfa significantly affected bioactive compounds with antioxidant potential, such as zinc, vitamin E and TPC, compared with the C samples. The utilisation of 5% alfalfa was also very effective on the fatty acids composition of thigh meat samples in the A group by increasing the concentration of eicosapentaenoic acid and significantly decreasing the n-6/n-3 ratio as well as cholesterol content with 10.41% in experimental samples. Therefore, alfalfa can be a potential alternative to synthetic feed additives in producing healthier chicken meat, with increased content of bioactive compounds and essential fatty acids for human health.

Diversified germination strategies of Centaurea cyanus populations resistant to ALS inhibitorsOriginal Paper

Marta Stankiewicz-Kosyl, Ma³gorzata Haliniarz

Plant Protect. Sci., 2023, 59(4):379-388 | DOI: 10.17221/62/2023-PPS

Centaurea cyanus is an annual weed mostly infesting winter cereals and rape. The aim of the study was to provide insights into the association between the seed germination characteristics and the herbicide sensitivity in C. cyanus in the presence of the genetic background control. Four populations of this species resistant to acetolactate synthase (ALS) inhibitors were tested. A germination study was conducted in a growth cabinet. Plants were sprayed at the 2- to 3-leaf stage with a field dose of florasulam (5 g/ha). There were four herbicide treatments dates, which included plants that germinated up to the seventh day, between eight and 12, 13 and 15, 16 and 20 days of the germination study. The germination dynamics of the four tested populations of C. cyanus resistant to florasulam was diversified. Three of them reached their maximum germination on the fourth day after sowing, however, the germination of the fourth population was spread over time with the highest number of germinated seeds found seven and twelve days after sowing. The germination time of the plants belonging to the resistant C. cyanus populations differentiated their reaction to florasulam. The conducted study indicated that the germination biology of ALS inhibitor-resistant populations of C. cyanus is diverse, which makes it difficult to introduce universal management strategies of this species into agricultural practice. Integration of control methods is recommended, including delaying the crop sowing date.

Ultra-high-pressure technology for preservation of fresh aquatic foods: A reviewReview

Jiakun Peng, Chune Liu, Kaikai Bai, Shaohua Xing, Feng Liu

Czech J. Food Sci., 2023, 41(5):313-322 | DOI: 10.17221/87/2023-CJFS


Aquatic foods such as fish, shrimp, and shellfish are important human nutrient sources. However, aquatic foods spoil quickly during processing and storage due to spoilage bacteria and endogenous enzymes. Ultra-high-pressure (UHP) technology, as an advanced non-thermal treatment method, is an effective preservation technique for aquatic foods. The mechanism of UHP technology is to destroy non-covalent bonds by UHP, which leads to the change of cell membrane permeability and the destruction of high-level structure of proteins, making apoptosis and enzyme inactivation. The technology can effectively sterilise and preserve food's colour, taste and nutritional value. The paper provides an introduction to the working principles, types, sources and equipment and describes the progress of the research and application of UHP technology in pascalisation, enzyme inactivation, parasite inactivation and quality modification of aquatic products. Potential limitations and prospects of the technology are also outlined. We hope to lay the theoretical groundwork for using this technique in aquatic product processing and provide guidance for its application in industrial production.

The most common reproductive disorders of cows in Holstein cattle breedingOriginal Paper

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

Czech J. Anim. Sci., 2023, 68(11):433-442 | DOI: 10.17221/86/2023-CJAS

The paper deals with the genomic evaluation of retained placenta (RP), metritis/endometritis (MET), and cystic ovarian disease (CYS) and their involvement in the selection programme of Holstein cattle. A procedure for the estimation of genetic parameters and genomic breeding values was proposed. The dataset included farmers’ records of 127 000 lactations from 109 farms for RP, 185 000 lactations from 131 farms for MET and 115 000 lactations from 87 farms for CYS. The lactational incidence was 6.9% (RP), 12.8% (MET) and 9.2% (CYS). The single-trait animal model equation included fixed effects of herd-year-season of calving and parity of the cow, random direct additive genetic effect, random permanent environmental effect and residual effect. The single-step genomic prediction (ssGBLUP) was based on more than 50 000 SNP-genotyped individuals. Heritability for all traits did not exceed 2%. Favourable correlations were found between reproductive disorders resistance, fertility and longevity traits. The correlation between CYS and milk protein yield indicated a genetic predisposition to cystic ovarian disease in high-producing cows. All significant correlations between health traits (clinical mastitis, claw and feet disorders, reproductive disorders) were positive, indicating that the selection for improvement of one health trait would induce a favourable selection response in the others.

Humic acid ameliorates phytoremediation, plant growth and antioxidative enzymes in forage turnip (Brassica rapa L.)Original Paper

Sibel Boysan Canal, Mehmet Ali Bozkurt, Hilal Yílmaz

Plant Soil Environ., 2023, 69(12):567-576 | DOI: 10.17221/394/2023-PSE

In this study, the effects of ethylenediaminetetraacetic acid (EDTA) and humic acid (HA) chelate applied to soils contaminated with heavy metals on the development, antioxidant defence system, and phytoremediation of forage turnip (Brassica rapa L.) were investigated for the first. Three doses of EDTA (E1: 5 mmol/kg, E2: 10 mmol/kg, E3: 15 mmol/kg) and three doses of HA (HA1: 500 mg/kg, HA2: 1 000 mg/kg, HA3: 2 000 mg/kg) were applied to soils contaminated with heavy metals (Cd, Pb, Zn, and Cr) in the pot. According to experiment results, HA application as chelate to the polluted soil caused a significant increase in the growth of forage turnip. Phytoremediation values of the plant for Cd heavy metal were found to be BCFshoot, BCFroot > 1, and translocation factor > 1. This result proved that forage turnip has Cd accumulating properties. Also, HA application caused a decrease in H2O2 (46%) and malondialdehyde (6%) levels and antioxidative enzyme activity in polluted soil. It has been concluded that humic acid improves the oxidative stress conditions in the plant and is more effective in the development and growth of the plant than EDTA, so that it can be used effectively in phytoremediation studies.

Role of nanoparticles in management of plant pathogens and scope in plant transgenics for imparting disease resistanceReview

Aflaq Hamid, Sahar Saleem

Plant Protect. Sci., 2022, 58(3):173-184 | DOI: 10.17221/37/2020-PPS

Current efforts are focused on the search for efficient methods of pathogen management that will not result in damage to the environment or cause an imbalance in the existing biota. One of the strategies for this is the use of nanoparticles in agriculture for disease management. This review presents a summative view on the various applications of nanoparticles in conferring disease resistance to crops and the possibility of using nanoparticles as carriers of genetic material for the generation of disease resistant crops. Nanoparticles are directly being used for the control of pathogens. Nanoparticles have been used as antiviral, antifungal and antibacterial agents. The nano-encapsulation of pesticides in controlled release matrices is one of the most promising research areas for the future. Nano-encapsulation has been shown to increase the efficiency of pesticides, reduce their volatilisation and decrease the toxicity and environmental contamination in crops. Nano-encapsulated agrochemicals or biomolecules can be engineered to be released in a controlled manner and in a target-specific location. Nanoparticles also have great scope in the field of transgenics vis-à-vis pathogen resistance. The field of agriculture can be revolutionised by the use of nanoparticles for imparting disease resistance in crops. The field is so versatile that the possibilities are endless.

Factors affecting the in vitro embryo production in buffalo (Bubalus bubalis): A reviewReview

S Kumar, MS Chaves, AFB da Silva, WG Vale, STR Filho, JC Ferreira-Silva, LM Melo, VJF Freita

Vet Med - Czech, 2023, 68(2):45-56 | DOI: 10.17221/48/2022-VETMED


Under natural and well-managed conditions, the buffalo has good reproductive and productive indices. However, in vitro embryo production (IVEP) has been used commercially to maximise the number of elite animals. In this species, several factors (donor management, in vitro culture medium, semen, in vitro conditions, embryo transfer) still affect the IVEP results. In addition, the cost of this technique is very high for this purpose. Therefore, more studies, as well as adequate plans, are needed to achieve this objective efficiently. In this review, we discussed the current commercial status, influencing factors (in vivo and in vitro), and the progress and future challenges of IVEP in buffalo. A total of 81 references were used from 1979 to 2022. The relevant data or literature were searched using the following databases: Google, ResearchGate, Science Alert, Science Direct and PubMed, using the following keywords: buffalo oocytes/COCs, buffalo embryos, pregnancy and calving or live birth rate after embryo transfer. The best maturation, cleavage and blastocyst rates in the in vitro production of buffalo embryos were 95.8, 75.2 and 33.4%, respectively. The pregnancy and live birth rates ranged from 22.2% to 43.5% and from 15.3% to 36.5%, respectively, after the transfer of fresh embryos produced in vitro to the recipients. This review will help to contextualise IVEP in buffaloes, as well as create an adequate plan for implementing IVEP in buffaloes.

Assessment of the impact of agricultural support on crop diversityOriginal Paper

Zdeòka ®áková Kroupová, Luká¹ Èechura, Matìj Opatrný, Zuzana Hlou¹ková, Iveta Mlezivová

Agric. Econ. - Czech, 2023, 69(3):89-100 | DOI: 10.17221/387/2022-AGRICECON


This study examines the impact of agricultural support on crop diversity measured by a diversity index. Our results indicate that agricultural subsidies have a limited effect on agricultural biodiversity. By using unique farm-level data, we show that subsidies support the income of farmers rather than the agricultural biodiversity. The results are robust regarding the size, practice management and altitude of the agricultural holdings' operations and various measures of agricultural biodiversity. However, when interpreting the results, the limitations of biodiversity indices should be considered.

Detection of the T1640C RYR1 mutation indicating malignant hyperthermia in dogsShort Communication

J Haluskova, B Holeckova, L Kokulova, M Galdikova, J Bucan, V Schwarzbacherova, S Sedlakova

Vet Med - Czech, 2023, 68(11):428-434 | DOI: 10.17221/46/2023-VETMED

Malignant hyperthermia (MH) is a clinical syndrome exhibiting elevation of expired carbon dioxide, hyperthermia, muscle rigidity, rhabdomyolysis, acidosis and hyperkalaemia, as well as cardiac dysrhythmia and renal failure. The syndrome manifests itself as a response to anaesthetic agents, such as e.g., halothane, desflurane, and succinylcholine. Depending on the animal species, MH is characterised by autosomal dominant or recessive inheritance, and so far two genes have been identified whose mutations can be linked to MH: RYR1 and CACNA1S. In different species, various mutations of the RYR1 gene have been described which may underlie MH. One of these mutations in dogs is T1640C, which results in the substitution of alanine for valine of the amino acid 547 (V547A) in the RYR1 protein. In our work, we aimed to investigate MH at the DNA level by identifying the T1640C mutation in a group of 50 dogs. For this purpose we used the PCR-RFLP technique, and in six dogs also direct sequencing of PCR products and subsequent comparison of their sequences with the RYR1 gene sequence in an online database. The results of our study show that none of the dogs analysed had any mutant allele of the RYR1 gene, indicating that none should be affected by MH.

Synergism of plant microbe interactions for remediation of potentially toxic elementsReview

Ranjna Kaundal, Vipin Parkash, Supriti Paul, Meghna Thapa

J. For. Sci., 2023, 69(4):127-143 | DOI: 10.17221/1/2023-JFS


Industrialization and urbanization are important for economic development which makes the human life easy by providing different job opportunities, increasing the production level of cheaper goods and standard of living. Despite its many positive effects, industrialization has had a negative impact on the natural ecosystem through environmental pollution. It is responsible for a greater input of potentially toxic and non-toxic substances into essential environmental components such as air, soil and water. Continuous industrialization has resulted in significant environmental problems due to the release of pollutants and extremely difficult treatment of contaminated areas. This review focuses on the recent literature dealing with the role of Plant Growth Promoting Microbes (PGPMs), i.e. bacteria and Arbuscular mycorrhizal Fungi (AMF) in the remediation of polluted sites.

Biodegradation of chlorpyrifos by soil bacteria and their effects on growth of rice seedlings under pesticide-contaminated soilOriginal Paper

Thanakorn Saengsanga, Nutthida Phakratok

Plant Soil Environ., 2023, 69(5):210-220 | DOI: 10.17221/106/2023-PSE

This study identified three soil bacteria (NRRU-BW3, NRRU-BW3, and NRRU-TV11) that degrade chlorpyrifos, produce indole-3-acetic acid, and exopolysaccharides under pesticide stress. The results revealed that soil bacteria were identified as Priestia megaterium NRRU-BW3, Bacillus siamensis NRRU-BW9, and Bacillus amyloliquefaciens NRRU-TV11. These strains showed the ability to produce indole-3-acetic acid (IAA) and exopolysaccharides (EPS) in chlorpyrifos. Moreover, these bacteria can degrade chlorpyrifos (CP) in an aqueous medium, and a 33–52% degradation rate was observed after 14 days of incubation. Inoculation with the NRRU-TV11 significantly increased (P < 0.05) plant height, root length, biomass and vigour index of rice seedlings compared to uninoculated controls in chlorpyrifos-contaminated soil. The findings demonstrated the beneficial effects of indigenous NRRU-TV11 on rice seedling development and chlorpyrifos degradation and recommended this strain as a potential replacement for plant growth improvement and environmental bioremediation of pesticide-contaminated agricultural soils.

The influence of biofertilization on the vegetative growth, yielding and nutritional status of ‘Sampion’ apple trees in first years after plantingOriginal Paper

Waldemar Treder, Krzysztof Klamkowski, Lidia Sas-Paszt, Katarzyna Wójcik, Anna Tryngiel-Gaæ, Mateusz Fr±c, Anna Lisek, Krzysztof Górnik, Edyta Derko

Hort. Sci. (Prague), 2023, 50(2):91-100 | DOI: 10.17221/101/2021-HORTSCI

The effects of biofertilizers on the growth, yielding, and nutritional status of apple trees (in comparison with the standard mineral fertilization) was evaluated in 3-years experiment (2018–2020). The experiment included the following treatments: (i) Super Fos Dar, (ii) Polifoska 6, (iii) Super Fos Dar + fungi (Aspergillus niger, Purpureocillium lilacinum), (iv) Urea enriched with fungi, (v) Urea dose reduced to 60% enriched with fungi, (vi) Super Fos Dar + bacteria applied on their own to the soil (Bacillus sp., Bacillus amyloliquefaciens, Paenibacillus polymyxa), (vii) Super Fos Dar enriched with bacteria, (viii) Super Fos Dar 60% enriched with bacteria, (ix) Polifoska 6 enriched with bacteria, (x) Polifoska 6 60% enriched with bacteria. The application of mineral fertilizers (even in reduced doses) enriched with beneficial microorganisms enhanced the growth of apple trees. The most abundant flowering was recorded when fertilization (with Super Fos Dar) was supplemented with beneficial microorganisms applied to the soil. No significant differences in plant yielding were noted (due to damages caused by spring frosts), but the highest fruit weight was recorded in the case of the trees fertilized with microbiologically enriched Super Fos Dar.

Inoculation with Bacillus alters nitrogen uptake and metabolism in roots of Diospyros lotus under wheat straw addition in soilOriginal Paper

Peng Zhang, Fengge Hao, Zitan Zhu, Dongmei Lang, Huiling Hu

Plant Soil Environ., 2023, 69(10):463-470 | DOI: 10.17221/225/2023-PSE


A 15N-labelling technique was carried out to investigate the effect of wheat straw co-application with Bacillus nealsonii, Cohnella, and Paenibacillus lautus on N uptake and assimilation in Diospyros lotus. Wheat straw combined with Bacillus increased the plant height, biomass accumulation, photosynthetic capacity, and uptake of 15N by roots, with 15N accumulating mainly in leaves of D. lotus. The NO3-N content in roots and leaves were decreased by wheat straw co-application with Bacillus, whereas NH4+-N, soluble protein, and total N contents were increased. Wheat straw addition promoted the activities of nitrate reductase, glutamine synthase and glutamate synthase in roots rather than in leaves. These N assimilation enzymatic activities, and glutamic-oxaloacetic transaminase and glutamic pyruvic transaminase activities were markedly increased by wheat straw combined with Bacillus. Moreover, the combined application of wheat straw and Bacillus, particularly B. nealsonii, improved the N use efficiency. These findings suggest that the combined application of wheat straw and Bacillus improved D. lotus growth by increasing N uptake, metabolism, and utilisation efficiency.

Intensive initial care of silver fir using improving compounds: A way to support diverse forests?Original Paper

Channa Suraweera, Martin Balá¹, Josef Gallo, Giuseppe D'Andrea, Stanislav Vacek, Jiøí Reme¹

J. For. Sci., 2023, 69(5):179-192 | DOI: 10.17221/178/2022-JFS


In some cases, it is difficult to promote climax tree species in the forest stand composition. In the Czech Republic, silver fir (Abies alba Mill.) is a typical example. This study offers an evaluation of the use of two improving compounds for tree plantations in the initial stage of growth in Central Bohemia. In the experiment, we measured the initial growth performance of a young fir plantation treated with a brassinolide compound (concentration 1 : 100 and 1 : 200) and Bio-Algeen® prior to planting and compared it with control treatment: we assessed height, root collar diameter, vitality and mortality rate during the period 2014–2019. Cumulative mortality rate of the plantation reached 25% at the end of the monitoring period, without any significant differences between variants. Height increment of the variant treated with Bio-Algeen® was significantly (P < 0.05) lower than the growth of brassinolide-treated variants, all treated variants were comparable with the control variant. The plantation underwent a drought-stress period in 2014 and 2015, which resulted in worsened vitality and colour across variants. As a result of the simple economic analysis, the most expensive inputs are planting stock and labour, therefore the price and application of additional substances should not affect decision-making.

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