Research for Rural Development 2022 : annual 28th International scientific conference proceedings最新文献_第2页

The probiotic mixture X feeding effect on the growth and development of broiler chicken digestive tract 益生菌混合物X饲喂对肉仔鸡消化道生长发育的影响

Research for Rural Development 2022 : annual 28th International scientific conference proceedings Pub Date : 2022-11-15 DOI: 10.22616/rrd.28.2022.019

Sabine Eglite, A. Ilgaža, M. Zolovs

{"title":"The probiotic mixture X feeding effect on the growth and development of broiler chicken digestive tract","authors":"Sabine Eglite, A. Ilgaža, M. Zolovs","doi":"10.22616/rrd.28.2022.019","DOIUrl":"https://doi.org/10.22616/rrd.28.2022.019","url":null,"abstract":"The issue of antibiotic resistance has become more pressing in the last decades. Therefore, substitutes for antibiotics are being sought. The aim of our study was to evaluate the effect of the mixture x of lactic acid bacteria on development of the broiler chicken digestive tract and the growth. The study was organised in three trials. In each trial, 260 one day old Ross 308 broiler chicks (males and females) were obtained from a commercial hatchery. They were randomly divided in two groups – the control group and the probiotic group. The dietary treatment was basal diet for the control group and basal diet + the mixture X of lactic acid bacteria 4 g 10 kg-1 for the probiotic group. Broilers were raised till day 35. All broilers were weighted on the day 1, 7, 14, 21, 28, 35 and 10 birds per treatment were randomly selected and killed by cervical dislocation. The gastrointestinal tract was excised (proventriculus, gizzard, intestines) and weighed with content. Overall, this study achieved significant results of the body weight results in the probiotic and the control groups, 2,835.7g ±161.74 and 2,828.02±115.64, respectively. The body weight of chickens and their gastrointestinal tract parts (proventriculus, gizzard, intestines) did not differ between the probiotic and control groups (p > 0.05).","PeriodicalId":226281,"journal":{"name":"Research for Rural Development 2022 : annual 28th International scientific conference proceedings","volume":"374 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131786591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Developing transparent organizational culture in a case of Lithuanian companies 以立陶宛公司为例，发展透明的组织文化

Research for Rural Development 2022 : annual 28th International scientific conference proceedings Pub Date : 2022-11-15 DOI: 10.22616/rrd.28.2022.031

S. Staniulienė

引用次数: 0

The reaction of scots pine Pinus Sylvestris L. forest ground cover vegetation to orienteering competitions in the seaside, Latvia 拉脱维亚海滨的苏格兰松(Pinus Sylvestris L.)森林地被植被对定向越野比赛的反应

Research for Rural Development 2022 : annual 28th International scientific conference proceedings Pub Date : 2022-11-15 DOI: 10.22616/rrd.28.2022.011

I. Straupe, Ieva Ivbule

{"title":"The reaction of scots pine Pinus Sylvestris L. forest ground cover vegetation to orienteering competitions in the seaside, Latvia","authors":"I. Straupe, Ieva Ivbule","doi":"10.22616/rrd.28.2022.011","DOIUrl":"https://doi.org/10.22616/rrd.28.2022.011","url":null,"abstract":"Orienteering is one of the most popular folk sports in Latvia, it involves a very large number of participants, and this number is growing every year. While participating in the competition and running through the forest, the competitors are trampling the forest floor. In Latvia, the impact of orienteering competitions has not been studied a lot; therefore, when organizing competitions, disagreements arise when choosing the competition area – there are groundless suspicions that orienteering sport has a significant negative long-term impact on the forest floor. The aim of research is to assess the impact of orienteering competitions on ground vegetation in pine forests at the seaside, Latvia. The research was carried out in the orienteering competition ‘World Masters Orienteering Championships 2019’ area, which was located in Scots pine forests in the seaside territory – in the vicinity of Bumbukalns and Garezeri. The study describes orienteering competitions and their process in forest lands; analyzes the vegetation at orienteering competition checkpoints before and after the competition; compares and evaluates vegetation changes in hilly areas on hill tops and in depressions. The study has found that orienteering competitions do not significantly affect the forest layers. It is concluded that as the distance from the control point increases, the trampling intensity decreases. The intensity of trampling does not depend only on the shape of the terrain. The effect of trampling is best seen on the moss layer.","PeriodicalId":226281,"journal":{"name":"Research for Rural Development 2022 : annual 28th International scientific conference proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116302537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Extraction of bioactives from pumpkin by-products and determination of their antioxidant activity 南瓜副产品中生物活性物质的提取及其抗氧化活性测定

Research for Rural Development 2022 : annual 28th International scientific conference proceedings Pub Date : 2022-11-15 DOI: 10.22616/rrd.28.2022.016

D. Konrade, K. Spalvins

{"title":"Extraction of bioactives from pumpkin by-products and determination of their antioxidant activity","authors":"D. Konrade, K. Spalvins","doi":"10.22616/rrd.28.2022.016","DOIUrl":"https://doi.org/10.22616/rrd.28.2022.016","url":null,"abstract":"Agro-industrial and food processing from pumpkins (Cucurbitaceae) produces a large number of by-products: bark, pomace, seeds still rich in bioactive compounds, especially carotenoids and green pigments (proto chlorophyll (a and b) and proto pheophytin (a and b)), which exhibit a broad spectrum of health-promoting effects and can be used as ingredients in functional food and cosmetics. For extraction of bioactive compounds from dried pumpkin by-products different methods were used: supercritical CO2, Soxhlet extraction with n- hexane, ethanol. Vegetable oils (rapeseed, coconut, grapeseed and olive oil) were used as green solvent alternatives to conventional organic solvents for carotenoid extraction. Detection and analyses of chlorophylls and carotenoids was done with hexane/acetone, cyclohexane, ethanol as solvents. The aim of this study was to use pumpkin by-products for extraction of high-value bioactive compounds with different methods, to determine antioxidant´s content and profile – carotenoids (ß-carotene, lutein, lycopene, zeaxanthin), pigments (chlorophylls a, chlorophylls b) with different solvents and to find out what solvent can be used for detection of pigments and carotenoids; to determine antiradical scavenging activity of biologically active compounds in extracts from pumpkin by-products (peel and hulled seeds).","PeriodicalId":226281,"journal":{"name":"Research for Rural Development 2022 : annual 28th International scientific conference proceedings","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121508500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Social entrepreneurship definition and essence in the Latvia context 拉脱维亚背景下社会企业家精神的定义和本质

Research for Rural Development 2022 : annual 28th International scientific conference proceedings Pub Date : 2022-11-15 DOI: 10.22616/rrd.28.2022.024

Dana Gintere, Lasma Licite-Kurbe

{"title":"Social entrepreneurship definition and essence in the Latvia context","authors":"Dana Gintere, Lasma Licite-Kurbe","doi":"10.22616/rrd.28.2022.024","DOIUrl":"https://doi.org/10.22616/rrd.28.2022.024","url":null,"abstract":"Inconsistencies, overlapping concepts, and contradictions appear in the developing literature on social entrepreneurship and its role in economic development and social value creation. However, the theoretical and practical importance of developing and applying social entrepreneurship to sustain social development and enhance human well-being in rapidly changing environments has catapulted this issue to the forefront of the research agendas of many scholars. This article examines the historical backdrop of social entrepreneurship, as well as the contexts of Latvia and the Nordic and Baltic countries. The study examines how the definition of social entrepreneurship has changed through time in various studies. Different scientists’ definitions are compared, and the issues with a common definition barrier are discussed. The definitions of social entrepreneurship are examined in the Latvian context between M. Yunus’ concept, the European Commission’s definition, and the Social Enterprise Law. Finally, the definitions of social entrepreneurship in the Nordic and Baltic nations that have legalized social entrepreneurship are examined to see where there are similarities and discrepancies.","PeriodicalId":226281,"journal":{"name":"Research for Rural Development 2022 : annual 28th International scientific conference proceedings","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130528675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A review: dairy phospholipids in human nutrition 综述:乳制品磷脂在人体营养中的作用

Research for Rural Development 2022 : annual 28th International scientific conference proceedings Pub Date : 2022-11-15 DOI: 10.22616/rrd.28.2022.013

Svetlana Aleksejeva, I. Ciproviča, L. Meija

引用次数: 0

Factors affecting the development of urban agriculture in Latvia 影响拉脱维亚都市农业发展的因素

Research for Rural Development 2022 : annual 28th International scientific conference proceedings Pub Date : 2022-11-15 DOI: 10.22616/rrd.28.2022.023

Madara Dobele, A. Zvirbule, Aina Dobele, A. Muska

{"title":"Factors affecting the development of urban agriculture in Latvia","authors":"Madara Dobele, A. Zvirbule, Aina Dobele, A. Muska","doi":"10.22616/rrd.28.2022.023","DOIUrl":"https://doi.org/10.22616/rrd.28.2022.023","url":null,"abstract":"Urban agriculture is not only a practice of providing food, but also a social lifestyle trend. Different approaches to practice provide the opportunity of different forms and functions, from growing products for household selfconsumption to setting up community gardens and commercial practices. Despite the international experience and the potential of urban agriculture in the sustainable development, in Latvia the practice is mostly implemented through individual or community initiatives. The development of urban agriculture in Latvia is influenced by several factors; therefore, the aim of the scientific article is to identify, classify and characterize factors affecting urban agriculture in Latvia. To achieve the aim, tasks are set: 1) to identify factors influencing urban agriculture, 2) to classify factors and characterize the impact. Several methods have been used in the study to fulfil tasks: systematic theoretical review for factor selection, coverage and characterization, methods of analysis, synthesis and deduction for identification and classification of factors, mathematical statistics correlation method for data correlation, force field analysis for the visualization of the factors impact. Results show that urban agriculture in Latvia has several obstacles – unclear status in legislation, the high cost of needed resources compared to rural areas, the increasing level of the household income. However, there are also factors that contribute to the development, such as criteria for urban greening and sustainability in the development strategies, the concentration of food-demand-driven businesses in cities, food-growing habits and positive attitudes among urban dwellers, and the potential of urban agriculture to promote environmental sustainability.","PeriodicalId":226281,"journal":{"name":"Research for Rural Development 2022 : annual 28th International scientific conference proceedings","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114828824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of ground-based high-throughput phenotyping platforms in cereal breeding – a review 地面高通量表型平台在谷物育种中的应用综述

Research for Rural Development 2022 : annual 28th International scientific conference proceedings Pub Date : 2022-11-15 DOI: 10.22616/rrd.28.2022.003

Z. Jansone, M. Bleidere, G. Putniece

{"title":"Application of ground-based high-throughput phenotyping platforms in cereal breeding – a review","authors":"Z. Jansone, M. Bleidere, G. Putniece","doi":"10.22616/rrd.28.2022.003","DOIUrl":"https://doi.org/10.22616/rrd.28.2022.003","url":null,"abstract":"Cereals are the most widely grown crops in Europe, accounting for 53.8% of total crop area. Today’s farmers are facing serious challenges – climate change, resource scarcity and population growth, which can have a negative impact on the quantity and cost of agricultural production. It is therefore important to focus on the development of cereal breeding programmes and the introduction of new technologies, including High-Throughput phenotyping methods. The aim of this paper was to analyse the recent scientific literature on the current use of ground-based sensors applied in High-Throughput Phenotyping Platforms (HTPPs) for the assessment and analysis of morphological and physiological traits in cereals and for the selection of high-yielding genotypes. This enables the breeder to asses and identify genotypes of interest more quickly and accurately at different stages of plant development and in larger field and laboratory trials than with traditional breeding methods. The paper also provides information on the potential of using ground-based HTPPs, the most important methodological principles in setting up trials and measuring traits to ensure the accuracy of the assessments and the processing and interpretation of the results.","PeriodicalId":226281,"journal":{"name":"Research for Rural Development 2022 : annual 28th International scientific conference proceedings","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116404274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review of climate change mitigation measures applicable in degraded peatlands in Latvia 审查适用于拉脱维亚退化泥炭地的减缓气候变化措施

Research for Rural Development 2022 : annual 28th International scientific conference proceedings Pub Date : 2022-11-15 DOI: 10.22616/rrd.28.2022.008

S. Kaleja, A. Bārdule

{"title":"Review of climate change mitigation measures applicable in degraded peatlands in Latvia","authors":"S. Kaleja, A. Bārdule","doi":"10.22616/rrd.28.2022.008","DOIUrl":"https://doi.org/10.22616/rrd.28.2022.008","url":null,"abstract":"Former peat extraction fields and currently employed peatlands are significant source of GHG emissions. Total area of degraded peatlands, which are not yet afforested or flooded is 39.5 kha and the net emissions, excluding peat produced for the horticulture applications, is 0.33 mill. tons CO2 eq. Large emissions means also significant mitigation potential; therefore, available knowledge on the GHG mitigation potential should be summarized to define research priorities and propose quantifiable measures. The aim of the study is to summarize literature and expert questionnaires based information on potentially valuable climate change mitigation measures applicable in degraded peatlands formerly used for peat extraction. The evaluation involves substantiation of the effect, criteria for site selection, addressed carbon pools and GHG emissions, methods for the effect assessment at local and national level, existing LPIS and other monitoring systems, duration of effect and supplementary measures to sustain the effect, estimation of cost and benefit ratio, existing support schemes, knowledge gaps to be filled, uncertainties and collaboration needed. The study proved that degraded peatlands can contribute significantly to the climate change targets, and this is identified by scientific community in multiple publications and research reports; however, quantitative assessment is missing in most of the cases. The most of the proved mitigation measures are associated with afforestation, which can be implemented in approximately 50% of degraded peatlands.","PeriodicalId":226281,"journal":{"name":"Research for Rural Development 2022 : annual 28th International scientific conference proceedings","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130376566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Formation of yield and quality of winter durum wheat grain depending on long-term fertilization 长期施肥对冬小麦产量和品质的影响

Research for Rural Development 2022 : annual 28th International scientific conference proceedings Pub Date : 2022-11-15 DOI: 10.22616/rrd.28.2022.002

H. Hospodarenko, V. Liubych

{"title":"Formation of yield and quality of winter durum wheat grain depending on long-term fertilization","authors":"H. Hospodarenko, V. Liubych","doi":"10.22616/rrd.28.2022.002","DOIUrl":"https://doi.org/10.22616/rrd.28.2022.002","url":null,"abstract":"Durum wheat (Triticum durum Desf.) grain is the main raw material for the production of high-quality pasta and cereal products. The research was conducted at Uman National University of Horticulture (Ukraine) in a long-term stationary experiment, founded in 2011. The aim of the work was to study the impact of long-term use of various fertilization systems (with incomplete return of nitrogen, phosphorus and potash fertilizers) on the yield and quality of durum winter wheat grain. The long-term application of nitrogen, nitrogen-potassium, nitrogen-phosphorus and nitrogen-phosphorus-potassium systems in the field crop rotation has a strong impact on the formation of durum winter wheat yield. Long-term use of N150P60K80 increases it from 3.6 t ha-1 up to 4.9 t ha-1 (p≤0.05). The use of half a dose of complete mineral fertilizer provides 4.5 t ha-1 (p≤0.05). Variants with incomplete return of phosphoruspotassium fertilizers, as well as paired combinations with a nitrogen component, provide the formation of 4.6–4.8 t ha-1 grains. Nitrogen fertilization systems increase grain yield to 4.2–4.5 t ha-1 depending on the fertilizer dose. It should be noted that durum winter wheat responds well to the use of nitrogen fertilizers, as the protein content increases from 13.3 to 14.8–15.9 % (p≤0.05), and the gluten content from 28.0 to 31.1–33.4% (p≤0.05) depending on the fertilization system. The protein content was most affected by the application of nitrogen component from complete mineral fertilizer.","PeriodicalId":226281,"journal":{"name":"Research for Rural Development 2022 : annual 28th International scientific conference proceedings","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129219702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0