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Journal articles on the topic "Agriculture economic aspects ethiopia"
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Mengistie, Belay Tizazu. "Ethiopia: The Environmental Aspects of Policy and Practice in the Ethiopian Floriculture Industry." Environmental Policy and Law 50, no. 4-5 (2021): 373–90. http://dx.doi.org/10.3233/epl-200239.
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The floriculture sector is booming in Ethiopia, making the country the second largest flower exporter in Africa and one of the largest suppliers of flowers globally. Despite the enormous advantages of the Ethiopian floriculture industry to the country’s economy, the industry’s unsustainability related to environmental and human rights is growing. Failure to protect the environment can have profound negative impacts on long-term economic development and human rights, including the right to life, adequate food, water and housing. The floriculture industry has been identified as having the potential to grow and contribute positively to the agricultural transformation and economy of Ethiopia. Policy, laws and regulations play a vital role in the implementation of any regulatory objective. During the last decade, Ethiopia has developed many policies and laws that link to improving the environment, and the flower farm industry itself has adopted self-regulation and standards, enhancing the protection of workers and the environment. But there is increasing evidence that the economic benefits of the flower industry come at the expense of the environment. So, what is the impact of these State and non-State regulations on a safe and clean environment? This paper aims to analyse how, why and under what circumstances environmental policy implementation might work or fail, by investigating the challenges for the floriculture industry relating to the intensive use of pesticides and water, and inappropriate waste disposal in the policy implementation process. It is safe to say that Ethiopia has developed a lot of legislation on the environment but the challenge of effective monitoring and enforcement remains. This paper concludes with recommendations, based on the fact that the principles of environmental rights, the right to life and the right to development cannot be realised in the absence of the right to a healthy environment.
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Tsegay, Kiros, Hongzhong Fan, AM Priyangani Adikari, and Hailay Shifare. "Does gender matter for household livelihood diversification in Ethiopia rural areas?" International Journal of Research in Business and Social Science (2147- 4478) 10, no. 6 (2021): 221–32. http://dx.doi.org/10.20525/ijrbs.v10i6.1376.
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Nowadays, the non-farm sector gives more attention and high expectations in reducing poverty in sub-Saharan African. Because participation of farm households in the none-farm sector out of their farm activities will play a great role to reduce poverty. Cross-sectional data were used to collect data in 2020 from farm household heads of 371 respondents with the mixed methodology to investigate the effect of demographic factors in none/off-farm economic activities on gender perspective in Ethiopia. In this study, we employ a Logistic regression model to explore the probabilities of household heads' participation in none/off-farm economic activities out of their farm. The result indicated, age and education level have a positive effect and statistically significant effect on increasing non-farm activities with the coefficients of 3.406, 1.956 respectively, confirmed that these variables should take into account in policy development to increase their impact on livelihood diversification. And Gender has a negatively significant on livelihood diversification. FHH is more participants in non-farm economic activities than MHH. Credit access does not contribute to increasing livelihood diversification instead; it contributes to agricultural specialization, not diversification. Surprisingly, family size has insignificant results in non-farm economic activities The outcome indicated it has its implications for the Ethiopian policy and strategy. The government should give more attention to the progressive aspects of non-farm economic activities to eradicate poverty. Whereas, decreasing its negative impact on poorer households by controlling obstacles of non-farm activities.
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Fayera, Tasfaye. "Assessment of the effectiveness biophysical soil and water conservation structures: A case study of Kiramuworeda, East Wollega Zone, Ethiopia." Applied Research in Science and Technology 1, no. 2 (2021): 94–115. http://dx.doi.org/10.33292/areste.v1i2.11.
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Soil erosion is one of the most serious global environmental issues affecting agriculture and soil fertility. On a global scale, water erosion is the most common type of soil erosion in agricultural areas, reducing the soil's ability to support productive agriculture. The efficiency of biophysical soil and water conservation systems must be evaluated before solutions for limiting soil losses may be considered. To promote sustainable land use in the study area, it is critical to understand farmers' knowledge of soil and water conservation structures, as well as the factors that influence their land management practices. Farmers in the study region are well-informed about soil and water conservation structures in general, as well as their causes, indications, and the amount of their plot of land that is susceptible to soil erosion in particular. Furthermore, they feature both traditional and modern soil conservation structures that are successful. However, several impediments to implementing the Soil and Water Conservation structures were found, including a lack of finance, the small area of their land, and other socio-economic and physical aspects. Furthermore, farmers had a highly positive attitude regarding the importance of contemporary Soil and Water Conservation structures. Their awareness, on the other hand, appears to be incorrect. Because they believe that the present SWC Structure is a government-led initiative to rehabilitate highly degraded areas rather than a mechanism of soil and water conservation on agricultural land. They believe that the structures take up a huge portion of a relatively small plot of land, preventing them from properly utilizing it. As a result, it is suggested that the government's policies and strategies, as well as corrective intervention from non-governmental organizations aimed at this issue and community participation in encouraging farmers to participate in soil and water conservation practices, are critical to resolving current poverty, food insecurity, and environmental degradation in the study area.
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HINDE, Omer. "DRAWING EXPERIENCES ON PARTICIPATORY FORESTRY EXTENSION APPROACHES: IMPLICATION FOR FORESTRY EXTENSION IN ETHIOPIA." PRIZREN SOCIAL SCIENCE JOURNAL 6, no. 3 (2022): 75–84. http://dx.doi.org/10.32936/pssj.v6i3.350.
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Forestry extension in Ethiopia has been mirrored in the agriculture extension package as one aspect commonly to address land and forest degradation. In contrast to the top-down approach, the participatory extension has given momentum to promote afforestation and rehabilitation of degraded land for transferring sufficient knowledge and addressing growers’ choices to raise tree species for various purposes. However, the research on forestry-related participatory technology development, adaption, and extension seems overlooked. The purpose of this review was to draw on the experiences of countries with low economic development on participatory forestry technologies development and extension. Hence, I reviewed good practices of various selected countries where forestry participatory extension approaches have been effective. The result of the review shows that participatory extension approaches like group training, demonstration trial, farmer's field school, and community-based extension approaches have been effective in forest management and livelihood development in the forest sector. Therefore, the review implies that key forestry stakeholders engaging in research, technology development and extension should prioritize participatory approaches to address both community needs and ecological aspects.
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Guliev, Rovshan, and Abrehet Mehari. "Why Competitiveness of Light Manufacturing Industries Matters to East African Countries: In the Case of Ethiopia, Rwanda, Tanzania, and Uganda." WSEAS TRANSACTIONS ON BUSINESS AND ECONOMICS 20 (March 10, 2023): 601–10. http://dx.doi.org/10.37394/23207.2023.20.55.
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Competitive manufacturing industries help in modernizing the agriculture sector which forms the backbone of the country’s economy and reduces the heavily dependent of people on agricultural income. The purpose of the study assesses the competitiveness of manufacturing sectors in East African countries (Ethiopia, Rwanda, Tanzania, and Uganda) and explore the policy, strategies, and agreements of the countries to enhance the competitiveness of the manufacturing sectors, analyse the government’s supporting package and identify the constraints that hinder the manufacturing sector’s competitiveness. The result finds that most of the light manufacturing industries’ products produced are used to meet the needs of domestic demand even though the rate of employment increased. And their export performance was very weak. Therefore, the government focuses on the quality of human aspects and export goods than quantity through enhancement of the strategic plans to remain a competitive manufacturing industry.
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Solomon, Araya GebreMichael, Gemete Gizachew, Mihret Adane, Waelti Pascale, and Tschopp Rea. "Socio-economic aspects related to feeding resources and practices in selected intensive dairy farms in Central Ethiopia." African Journal of Agricultural Research 14, no. 5 (2019): 252–62. http://dx.doi.org/10.5897/ajar2018.13156.
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Wordofa, Muluken Gezahegn. "Are farmers in Ethiopia ready to embrace cost-sharing agricultural extension approach?" International Journal of Social Economics 46, no. 9 (2019): 1119–36. http://dx.doi.org/10.1108/ijse-04-2019-0278.
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Purpose The purpose of this paper is to investigate perceptions of smallholder farmers toward the cost-sharing agricultural extension service provision. Design/methodology/approach The study used data from a cross-sectional survey, key informants interviews and focused group discussions conducted on 384 farm households from six Kebeles of Eastern Ethiopia. Findings The authors find that flexibility and credibility, ability of development agents to address neglected aspects in agricultural production, and reaching diversified groups of farmers as the perceived advantages of the cost-sharing approach. Furthermore, improved knowledge and attitude, enhanced research–extension–farmer linkages, and improved food security and poverty reduction are found to be the three most important impact areas associated with the approach. On the contrary, poor economic status of farmers, high cost of administration and absence of a clear guideline/legislation are found to be the most important constraints. The authors find that increasing farmers’ awareness about the cost-sharing approach and preparing a clear definition of the form, modalities and principles of the cost-sharing extension approach can be a part of the practical solutions to overcome the challenges. Research limitations/implications The current research is limited to the investigation of farmers’ perceptions toward paid extension services. The willingness to pay for extension services – using discrete choice experiments – is dealt with in another paper. Originality/value The first of its kind in the country, the paper tried to assess farmers’ readiness to try a new extension service delivery. The findings have important implications for policy makers and local level implementers of extension programs.
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Naumann, G., P. Barbosa, L. Garrote, A. Iglesias, and J. Vogt. "Exploring drought vulnerability in Africa: an indicator based analysis to inform early warning systems." Hydrology and Earth System Sciences Discussions 10, no. 10 (2013): 12217–54. http://dx.doi.org/10.5194/hessd-10-12217-2013.
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Abstract. Drought vulnerability is a complex concept that includes both biophysical and socio-economic drivers of drought impact that determine capacity to cope with drought. In order to develop an efficient drought early warning system and to be prepared to mitigate upcoming drought events it is important to understand the drought vulnerability of the affected regions. We propose a composite Drought Vulnerability Indicator (DVI) that reflects different aspects of drought vulnerability evaluated at Pan-African level in four components: the renewable natural capital, the economic capacity, the human and civic resources, and the infrastructure and technology. The selection of variables and weights reflects the assumption that a society with institutional capacity and coordination, as well as with mechanisms for public participation is less vulnerable to drought; furthermore we consider that agriculture is only one of the many sectors affected by drought. The quality and accuracy of a composite indicator depends on the theoretical framework, on the data collection and quality, and on how the different components are aggregated. This kind of approach can lead to some degree of scepticism; to overcome this problem a sensitivity analysis was done in order to measure the degree of uncertainty associated with the construction of the composite indicator. Although the proposed drought vulnerability indicator relies on a number of theoretical assumptions and some degree of subjectivity, the sensitivity analysis showed that it is a robust indicator and hence able of representing the complex processes that lead to drought vulnerability. According to the DVI computed at country level, the African countries classified with higher relative vulnerability are Somalia, Burundi, Niger, Ethiopia, Mali and Chad. The analysis of the renewable natural capital component at sub-basin level shows that the basins with high to moderate drought vulnerability can be subdivided in three main different geographical regions: the Mediterranean coast of Africa; the Sahel region and the Horn of Africa; the Serengeti and the Eastern Miombo woodlands in eastern Africa. Additionally, the western part of the Zambezi basin, the south-eastern border of the Congo basin and the belt of Fynbos in the Western Cape should also be included in this category. The results of the DVI at the country level were compared with drought disasters information from the EM-DAT disaster database. Even if a cause effect relationship cannot be established between the DVI and the drought disaster database, a good agreement is observed between the drought vulnerability maps and the number of persons affected by droughts. These results are a valuable contribution to the discussion on how to assess drought vulnerability and should contribute to the development of drought early warning systems in Africa.
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Sekabira, Haruna, Shiferaw Feleke, Victor Manyong, et al. "Circular bioeconomy practices and their associations with household food security in four RUNRES African city regions." PLOS Sustainability and Transformation 3, no. 4 (2024): e0000108. http://dx.doi.org/10.1371/journal.pstr.0000108.
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Achieving the United Nation’s 2030 agenda which aims, among other goals, to ensure sustainable consumption and production patterns, requires a sustainable resource use model deployed at scale across global food systems. A circular bioeconomy (CBE) model of resource use has been proposed to reuse of organic waste in agricultural production to enhance food security. However, despite several initiatives recently introduced towards establishing a CBE in sub-Saharan Africa (SSA), minimal scientific efforts have been dedicated to understanding the association of CBE practices and food security. This study use data from 777 smallholder farm households from DRC, Ethiopia, Rwanda, and South Africa, to examine associations between three CBE practices (use of organic waste as compost, as livestock feed, and sorting waste) and household food security. Using different regression and propensity score matching models (PSM). Result reveal that using CBE practices more likely adds a 0.203 score of food insecurity access prevalence (HFIAP), 1.283 food insecurity access scale (HFIAS-score) and 0.277 for household dietary diversity score (HDDS) among households using CBE practiced groups. Associations regarding using organic waste as compost are generally positive but insignificant, while those with sorting waste are significantly and consistently negative. Thus, CBE innovations aiming to enhance household food security could prioritize organic waste valorization into livestock feed consider socio economic aspects such as access to land, access to market, education level, using mobile phone, income and city regions where interventions took place. However, prior sorting of waste is necessary to enable effective waste valorization.
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Naumann, G., P. Barbosa, L. Garrote, A. Iglesias, and J. Vogt. "Exploring drought vulnerability in Africa: an indicator based analysis to be used in early warning systems." Hydrology and Earth System Sciences 18, no. 5 (2014): 1591–604. http://dx.doi.org/10.5194/hess-18-1591-2014.
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Abstract. We propose a composite drought vulnerability indicator (DVI) that reflects different aspects of drought vulnerability evaluated at Pan-African level for four components: the renewable natural capital, the economic capacity, the human and civic resources, and the infrastructure and technology. The selection of variables and weights reflects the assumption that a society with institutional capacity and coordination, as well as with mechanisms for public participation, is less vulnerable to drought; furthermore, we consider that agriculture is only one of the many sectors affected by drought. The quality and accuracy of a composite indicator depends on the theoretical framework, on the data collection and quality, and on how the different components are aggregated. This kind of approach can lead to some degree of scepticism; to overcome this problem a sensitivity analysis was done in order to measure the degree of uncertainty associated with the construction of the composite indicator. Although the proposed drought vulnerability indicator relies on a number of theoretical assumptions and some degree of subjectivity, the sensitivity analysis showed that it is a robust indicator and hence able of representing the complex processes that lead to drought vulnerability. According to the DVI computed at country level, the African countries classified with higher relative vulnerability are Somalia, Burundi, Niger, Ethiopia, Mali and Chad. The analysis of the renewable natural capital component at sub-basin level shows that the basins with high to moderate drought vulnerability can be subdivided into the following geographical regions: the Mediterranean coast of Africa; the Sahel region and the Horn of Africa; the Serengeti and the Eastern Miombo woodlands in eastern Africa; the western part of the Zambezi Basin, the southeastern border of the Congo Basin, and the belt of Fynbos in the Western Cape province of South Africa. The results of the DVI at the country level were compared with drought disaster information from the EM-DAT disaster database. Even if a cause–effect relationship cannot be established between the DVI and the drought disaster database, a good agreement is observed between the drought vulnerability maps and the number of persons affected by droughts. These results are expected to contribute to the discussion on how to assess drought vulnerability and hopefully contribute to the development of drought early warning systems in Africa.
Dissertations / Theses on the topic "Agriculture economic aspects ethiopia"
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Taffesse, Alemayehu Seyoum. "Three essays on Ethiopian farm households." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670231.
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Kebede, Yohannes. "Economic evaluation of post-drought recovery agricultural project : the case of Tegulet and Bulga District, Shoa Province, Ethiopia." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63894.
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Kebede, Yohannes. "Household decision-making : the adoption of agricultural technologies in Ethiopia." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41250.
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Technology adoption has been seen as key to the development of more productive agriculture in lesser developed countries. But the adoption and adaptation of new agricultural technology occurs at the level of farm families where decisions are made based on perceived risks and benefits of the new technology, and its fit within the knowledge and practices of existing agricultural system.<br>The processes and consequences of household decision-making are investigated using unidisciplinary methods of decision analysis involving statistical, mathematical, psychological, anthropological and econometric techniques brought together in a holistic manner. The study is focused in the Ada and Selale regions of the Central Ethiopian Highlands. The technologies studied are fertilizer, improved crop varieties, pesticides and cross-bred cows.<br>Differences in goals and strategies of households are caused by inequalities in ownership of physical resources, and access to local institutions and indigenous knowledge. Village and regional institutions greatly influence access to physical (e.g. land) and non-physical (knowledge and information) resources. Successful intervention strategies are those that recognize region- and experience-specific potentials.<br>When compared with physical resources, non-physical resources exert greater influence on decisions to adopt technologies and on the efficiency with which inputs are used in the production of grain and milk outputs. Producers are willing to take risks in enterprises in which they have the advantages of favourable location or experience. The degree of risk-averse behaviour of households reduces the probability of adopting technologies in both study sites. Natural factors (e.g. rainfall) and policy variables (e.g., land tenure and market) increase production risk. Indigenous production knowledge and schooling consistently reduce variability in production.
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Fanta, Elias Gebreselassie. "The production of oilseeds in Ethiopia: value chain analysis and the benefit that accrue to the primary producers." Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_9950_1249265362.
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<p>Oilseed is the third most important export item in Ethiopian foreign trade. It has registered a high export growth rate over recent years both in terms of volume and value. Besides its growing share in export, it is widely used for the extraction of edible oil and oilcake that is supplied to the domestic market. Although farmers are the primary producers of oilseeds, they are not able to benefit from the growing market share of the product due to the fact that they find themselves at the end of an extended market chain. As a result they only receive a very small proportion of what the final buyers are paying for the oilseed products. In addition, there is not much experience on the part of the farmers to process oilseeds, change it to edible oil and oilcake and retain the value addition in the local economy. This thesis used the value chain approach to investigate the possibilities for the primary producers to increase their income share from the selling of their products either by directly selling to exporters or by processing oilseeds, producing edible oil and oilcake, and retaining the value addition in the local economy.</p>
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Mirotchie, Mesfin. "Productivity analysis of private and socialized agriculture in Ethiopia." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54246.
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The system of cereal grain production in Ethiopia has been stratified into private, cooperative and state farms since the 1975 land reform. The private farms are being gradually replaced by the cooperative farms while the state farms are receiving increased technical and budgetary assistance by the Ethiopian government. lt is, however, not clear if these policies are consistent with the technical characteristics of these three modes of production. This study, therefore, evaluated technical efficiency, impacts of known and latent input factors, and returns to scale parameters for each farm type.
Sample data were collected from Ethiopia on five cereal crops, namely, barley, com, sorghum, teff and wheat and several input factors, including labor, land, oxen, traditional farm implements, tractors, machinery services, modern yield·increasing inputs, livestock, education and rainfall over 77 awrajjas for the 1980-1986 production period. A covariance regression model was applied with these data to determine an appropriate functional form between the Cobb-Douglas and translog production functions. The Translog functional form was selected for the analysis on the basis of statistical tests.
Results of the analysis suggest that the producer cooperatives collectively appear to have a potential to generate increased gross income per hectare at a declining rate with respect to an equiproportionate increase in all inputs, except land, upon an increasing average cost of production per unit of cereal output. The private and state farms appear to be operating with a close to fixed proportions type of production technology with a constant average cost of production per unit of cereal output per hectare. Moreover, the range of substitutability between input factors tends towards a complementary relationship as the institutional transformations and management techniques of the cereal producing farms shift from the traditional to a more advanced and centrally managed state mode of production.
Partial income elasticity parameters suggest that (a) the private sector’s gross income per hectare is most responsive to traditional hand tools, fertilizer, labor, human capital at primary level of education, and rain in August and September; (b) the cooperative sector’s gross income per hectare is most responsive to the use of tractors and September rain; whereas (c) gross income per hectare of the state farms is most responsive to the use of traditional labor, machinery services and rain in June and August. Thus, Ethiopia’s agricultural income production per hectare is likely to be revitalized by: (a) qualitative changes in the traditional inputs, water management, and introduction of modem technical inputs such as fertilizer and farmer education in the private sector; (b) increased traditional labor employment, improved management of water, machinery and modem yield-increasing inputs on the state farms; and (c) a better usage of tractors and collaborative input factors, improved water management, and a substantial increase in capital investment to achieve full employment of the seemingly redundant labor and oxen input factors on the cooperative farms. It seems unlikely that the producer cooperatives will achieve the goal of maximum cereal output per hectare with the most prevalent composition of the redundant traditional input factors which contribute insignificantly at the margin without a major change in the current production techniques and structural policies of the sector.<br>Ph. D.
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Orkin, Kate. "The role of aspirations and identities in decisions to invest in children's schooling." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:ea4bcbb5-1c00-4111-bbb2-525f45f3fead.
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I demonstrate that household investments in children's education in Ethiopia are affected by parents' self-beliefs (such as their locus of control), parents' aspirations for children's educational attainment, children's conceptions of their roles and identities in the household and at school, and children's own preferences, all concepts not widely studied in development economics. Two empirical chapters report on a field experiment in which randomly selected adults watched documentaries about role models who were poor but succeeded in agriculture or small business. Six months later, parents' self-beliefs and aspirations for children's education were higher in the treatment than in the placebo and control groups. Enrolment of children in school, spending on education, saving and use of credit also increased. A third empirical chapter draws on longitudinal qualitative research to argue that children's preferences for their time allocation between work and school are strongly influenced by the desire to comply with valued identities as students and as independent earners and contributors to the household. The fourth chapter suggests that understanding children's preferences might improve predictions about their reaction to education policies. The literature predicts an increase in time in school will not improve test scores: children will reduce effort because they desire a limited amount of learning. I find a reform to lengthen the Ethiopian primary school day improves test scores. Although this could occur through many mechanisms, one possibility is that children do not prefer to limit their desired amount of learning. This suggests that better evidence on children's preferences might improve prediction of the effects of policies to alter school inputs. The conclusion reflects on whether the empirical relevance of concepts of self-beliefs, aspirations and identities implies that assumptions in standard models of decision-making in economics about the characteristics of beliefs and preferences ought to be rejected. I argue that these ideas can be captured by existing economic concepts of beliefs and preferences and by standard assumptions about these concepts. I suggest that, contrary to recent accounts building on human capital theory, self-beliefs should be viewed as beliefs, not non-cognitive skills. I consider aspirations as a type of preference, shaped by both objective constraints and self-beliefs. I consider identity as a preference for complying with a social role, but highlight that such preferences are often altruistic, rather than self-interested. In conclusion, I argue that economics should draw further on other social sciences, including psychology, to develop substantive theories of the formation and characteristics of beliefs and preferences. Doing so will suggest when it is appropriate to apply standard models and how their assumptions can be modified if their predictions do not hold.
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van, Zyl Johan, Bach Helmke Sartorius von, and Johann Kirsten. "Internal environment: the agricultural sector in Region E." University of Pretoria, 1993. http://hdl.handle.net/10962/68792.
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The main purpose of this report is to conduct an analysis with a view to determine the potential role and contribution of agriculture in region E. This report emphasises the agricultural impact in determining an economic development strategy for region E. It is therefore the aim of this report to provide a brief situation analysis and an interpretation of existing problems affecting development. The importance of the sector, implications of the spacial distribution, the structure, potential growth and the policy environment will be addressed. From the above, constraints, bottlenecks, the likely future demand, etc will be pointed out. The interpretation of the above and its implications for development is necessary to determine objectives for the aimed strategy. The strategy for region E is necessary in determining policies stressing economic growth and fair distribution of resources to enable the mass of the population to share in increased wealth and economic opportunities.<br>Region E economic development study
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Wong, Chi-kwong Patrick, and 黃志光. "Economic changes in rural China." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31954509.
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Theora, Benard Nganga 1956. "MARKET SHARE DETERMINANTS FOR COMMERCIAL BANKS LENDING TO AGRICULTURE." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276385.
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Kennedy, Daniel Richard 1962. "The impacts of rental-market legislation on agriculture in northwest Portugal." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277140.
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In January, 1986, Portugal became a part of the European Community. Although this will have many beneficial effects on Portugal's industrial sector, the agricultural sector will be negatively impacted by the regulations under the Common Agricultural Policy (CAP) due to take affect in 1996. The Entre Douro e Minho (EDM) region, in particular, will be hard hit by the CAP regulations. Modeling of the EDM suggests that farm operators can offset many of the negative impacts through increases in farm investment and farm size. However, legislation in both the credit and land markets hinder this process. This study analyzes the rental-market legislation in light of tenancy theory. The analysis suggests that changes in the method of calculating maximum rent along with changes in the security of tenure provisions will stimulate the rental markets and lead to the desired increases in farm investment and farm size.
Books on the topic "Agriculture economic aspects ethiopia"
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Ingvar, Jonsson. A socio-economic survey of rural Arsi, Ethiopia. Dept. of Geography, University of Umeå, 1992.
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Pickett, James. Economic development in Ethiopia: Agriculture, the market, and the state. Development Centre of the Organisation for Economic Co-operation and Development, 1991.
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Mehary, Zewdie. Structural change: Institutional and socio-economic factors affecting agricultural capital formation in Ethiopia. Gesellschaft für Wirtschafts- und Regionalsoziologie, 1986.
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Gebissa, Ezekiel. Leaf of Allah: Khat & agricultural transformation in Harerge, Ethiopia 1875-1991. James Currey, 2004.
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Lirenso, Alemayehu. Villagization and agricultural production in Ethiopia: A case study of Shewa region. s.n., 1988.
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Ezekiel, Gebissa, ed. Taking the place of food: Khat in Ethiopia. Red Sea Press, 2010.
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G-Egziabher, Amare. Resource allocation in small-scale farming under risk in Arssie, Ethiopia. Lit, 1995.
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Tadesse, Beyene, Demis Chanyalew, and Hailu Beyene, eds. Adapting to crisis: Ethiopian agriculture in the 21st century : proceedings of the 13th Annual Conference of the Agricultural Economics Society of Ethiopia. Agricultural Economics Society of Ethiopia, 2011.
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Kidane, Asmerom. Real exchange rate price and agricultural supply response in Ethiopia: The case of perennial crops. African Economic Research Consortium, 1999.
Find full textBook chapters on the topic "Agriculture economic aspects ethiopia"
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Rohne Till, Emelie. "Concluding Remarks." In Agriculture for Economic Development in Africa. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-07901-6_8.
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AbstractThis chapter sums up the main conclusions based on the book’s three main parts: the theoretical discussion on the role of agriculture in economic growth; the historical account of key aspects of the Ethiopian case study; and the empirical investigation of the relationship between agricultural and aggregate economic growth in Ethiopia during the rapid growth period in 2002–2010. The chapter also outlines some relevant areas of future research, based on the book’s research.
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Rohne Till, Emelie. "Case Study Context: Ethiopia." In Agriculture for Economic Development in Africa. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-07901-6_5.
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AbstractIn this book, Ethiopia is used as a case study to understand the role that the agricultural sector can play in economic growth in a low-income country. Ethiopia is not intended to be interpreted either as a representative or as a unique case for the broader sub-Saharan Africa (SSA) experience, but the book instead intends to shed light on Ethiopia’s particular development experience. To contextualize the findings of the research, this chapter therefore discusses some key elements of Ethiopia’s rich economic, political, and agricultural history.
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Rutledge, Zachariah, and J. Edward Taylor. "Economic and Societal Aspects." In Agriculture Automation and Control. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-26941-7_10.
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Dhaliwal, H. S., and Dharvinder Singh. "Economic Aspects of Conservation Agriculture." In Conservation Agriculture in India. Routledge, 2022. http://dx.doi.org/10.4324/9781003292487-19.
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Rohne Till, Emelie. "Introduction." In Agriculture for Economic Development in Africa. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-07901-6_1.
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AbstractThe twenty-first century has seen the concurrent rise of optimism about economic growth in sub-Saharan Africa and the return of the agricultural sector to the top of the development agenda. Ethiopia—with its rapid economic growth for two decades, achieved during a policy focus on the agricultural sector—is at the forefront of both these developments. This chapter introduces the book’s main theme of the role of agriculture in economic development, which is addressed based on a case study of Ethiopia.
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Hadas, Efrat, and Yoav Kislev. "Economic Aspects of Irrigation with Treated Wastewater." In Treated Wastewater in Agriculture. Wiley-Blackwell, 2010. http://dx.doi.org/10.1002/9781444328561.ch4.
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Rohne Till, Emelie. "Methodology." In Agriculture for Economic Development in Africa. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-07901-6_6.
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AbstractThis chapter introduces the book’s empirical investigation of the role that agricultural growth has played in aggregate economic growth in Ethiopia in the twenty-first century. This chapter describes the main method and data used for empirical investigation. It describes both the data contained in the three Social Accounting Matrices (SAMs) that form the book’s main empirical data source, as well as the methodological proceedings of the Semi-Input-Output multiplier model that the book applies.
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Rohne Till, Emelie. "SIO Multiplier Analysis." In Agriculture for Economic Development in Africa. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-07901-6_7.
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AbstractThis chapter presents the main results of the Semi-Input-Output (SIO) multiplier analysis. Overall, the results of the empirical analysis show that the agricultural sector was the best growth option in Ethiopia in the studied time period, with high and strengthening growth linkages to other sectors. Due to the apparent rigidity of the manufacturing sector, manufacturing growth would not have had as strong an effect on overall growth. These results are presented in detail, as well as discussed, in this chapter.
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Güth, Werner, and Reinhard Selten. "Strategic Aspects of IIASA’S Food and Agriculture Model." In Economic Globalization, International Organizations and Crisis Management. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-57110-7_12.
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Keeler, Andrew G. "Economic Aspects of Enforcing Agricultural Water Policy." In The Economics and Management of Water and Drainage in Agriculture. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-4028-1_36.
Full textConference papers on the topic "Agriculture economic aspects ethiopia"
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Goncharova, N., and A. Golodnova. "Economic aspects of secondary aluminum processing." In INTERNATIONAL SCIENTIFIC AND PRACTICAL CONFERENCE “INNOVATIVE TECHNOLOGIES IN AGRICULTURE”. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0167033.
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HORSKA, Elena, Alim PULATOV, and Khabibullo PIRMATOV. "ECONOMIC ASPECTS OF VALUE ADDED AGRICULTURE IN UZBEKISTAN." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.213.
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The goal of this paper is to analyse socio-economic role of value added agriculture in Uzbekistan. The main agricultural exports are cotton (raw and yarn), fruits, vegetables, leather, wool and fur. There is an opportunity to acquire more social and economic advantages by exporting finished goods, which are made out of primary agricultural commodities. Adding value to agricultural products lead to increasing the share of finished goods in export, supplying import-substituting products, improving infrastructure in rural areas, providing new jobs and growing people’s income. The paper presents the analyse of the agriculture sector in GDP and the production dynamics of the primary agricultural commodities during 2005-2014, as well as comparison the share of cotton, fruits, vegetables and leather in export in 2005 and 2014. Based on the analyses it is recommended to widely use value added agriculture in order to support people, who are living in rural areas in Uzbekistan.
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Efremova, E. A. "Legal Aspects Of Digitalization Of Organic Agriculture." In Global Challenges and Prospects of The Modern Economic Development. European Publisher, 2021. http://dx.doi.org/10.15405/epsbs.2021.04.02.176.
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Dobele, Madara, Andra Zvirbule, and Aina Dobele. "Legal aspects and institutional framework of urban agriculture in Latvia." In 23rd International Scientific Conference. “Economic Science for Rural Development 2022”. Latvia University of Life Sciences and Technologies. Faculty of Economics and Social Development, 2022. http://dx.doi.org/10.22616/esrd.2022.56.015.
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Urban agriculture has a long history of evolving functions of the practice, but its place in global and national legal aspects is often still unclear. Both the United Nations and the European Union have defined goals and directions of sustainable development, identifying and including the use of resources, the principles of the circular economy, the equal development of regions and other aspects. Urban agriculture has a potential in the most of them. However, the role and legal framework of urban agriculture is largely based on national or municipal initiatives. In Latvia urban agriculture does not have a legally defined status, it is not defined in strategic development plans, nor in the laws and regulations of the Cabinet of Ministers. Therefore, the aim of this study is to analyse the legal aspects of urban agriculture in order to determine its potential institutional framework in Latvia. To achieve the goal, tasks of the research are defined: 1) to identify the main legal aspects affecting urban agriculture in Latvia, 2) to determine the potential institutional framework for urban agriculture in Latvia. The study was conducted using systematic review analysis of laws, development strategies and regulations of the Republic of Latvia. As a result of the research, the main groups of legal aspects, influencing urban agriculture, were identified (agriculture and commerce, food chain, local government and environmental development and protection, waste management) and a possible institutional framework was developed.
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Heryadi, D. Yadi, and Trisna Insan Noor. "SRI Rice Organic Farmers' Dilemma : Between Economic Aspects and Sustainable Agriculture." In 2016 Global Conference on Business, Management and Entrepreneurship. Atlantis Press, 2016. http://dx.doi.org/10.2991/gcbme-16.2016.32.
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Pochwatka, Patrycja, Alina Kowalczyk-Jusko, Andrzej Mazur, et al. "Energetic and Economic Aspects of Biogas Plants Feed with Agriculture Biomass." In 2020 4th International Conference on Green Energy and Applications (ICGEA). IEEE, 2020. http://dx.doi.org/10.1109/icgea49367.2020.239705.
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Altukhov, P., I. Toma, Y. Predeus, and N. Predeus. "Semantic aspects of modelling the strategy of socio-economic system development by artificial intelligence." In INTERNATIONAL SCIENTIFIC AND PRACTICAL CONFERENCE “INNOVATIVE TECHNOLOGIES IN AGRICULTURE”. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0167374.
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Sarkisian, D. S. "THE ECONOMICS OF AGRICULTURE." In STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS. ООО «ДГТУ-Принт» Адрес полиграфического предприятия: 344003, г. Ростов-на-Дону, пл. Гагарина,1., 2024. http://dx.doi.org/10.23947/interagro.2024.353-355.
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The article discusses a branch of the economy that helps optimize the use of resources that are bottlenecks or scarce to increase the efficiency of production processes, as well as the economic aspects of agriculture, the agrarian structure of the economy, problems and tasks.
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Dian Perwitasari, Fitri, and Bastoni Bastoni. "Social Study And Economic Aspects Of Sheep In Intensive Livestock Business District Cirebon." In Proceedings of the International Conference on Food, Agriculture and Natural Resources (FANRes 2018). Atlantis Press, 2018. http://dx.doi.org/10.2991/fanres-18.2018.58.
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Dobele, Madara, Aina Dobele, Andra Zvirbule, Liga Jankova, and Andrejs Lazdins. "Urban agriculture – population’s attitude towards practice and products in Latvia." In 24th International Scientific Conference. “Economic Science for Rural Development 2023”. Latvia University of Life Sciences and Technologies. Faculty of Economics and Social Development, 2023. http://dx.doi.org/10.22616/esrd.2023.57.021.
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The food growing practice is connected with Latvia's cultural-historical heritage and traditions, due to which agriculture, especially in the form of micro-farming for household self-consumption, is a developed practice in Latvia, including in cities. Trends of urban agriculture, which are characterised by inclusion in dimensions of the sustainability, develop the practice of community gardens that in Latvia are currently in the development stage. This highlights the need to evaluate the population's attitude and views on the aspects of urban agriculture in Latvia. The agricultural sector in Latvia is developed and rural regions are relatively close to urban areas, therefore, agricultural practices in cities for the realization of production can create a different, even negative attitude of society towards urban agriculture and its relevance in Latvia. Therefore, the aim of this study is the assessment of the attitude of the population in Latvia towards practices and products of urban agriculture. In order to achieve the aim, two tasks have been set: 1) to analyse the attitude of Latvia’s population towards the practice of urban agriculture; 2) to analyse the population's attitude towards urban agricultural products, in the context of their food choice criteria. To fulfil the tasks, a survey of Latvia’s population was conducted. In general, the population's attitude creates supportive aspects for urban agriculture in Latvia, but challenging are aspects of the attitude regarding the potential pollution of food in the urban environment, its role and performance in cities, which population do not associate with agricultural practices.
Reports on the topic "Agriculture economic aspects ethiopia"
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Bellwood-Howard, Imogen, and Helen Dancer. Politics, Power and Social Differentiation in African Agricultural Value Chains: The Effects of COVID-19. Institute of Development Studies (IDS), 2021. http://dx.doi.org/10.19088/apra.2021.027.
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Since the structural adjustment policies of the 1980s, policymaking at a national and continental level has increasingly turned to agricultural commercialisation as the foundation for Africa’s long-term nutrition and food security. However, socio-economic inequalities, land tenure and food insecurity, as well as livelihood and income precarities remain widespread challenges. The effects of shocks, such as COVID-19, have overlaid emergent and entrenched patterns of social differentiation that shape access to resources, markets, and other opportunities for those involved in commercial agriculture. This paper considered the impacts of COVID-19 on value chains in Ethiopia, Ghana, Malawi, Nigeria, Tanzania, and Zimbabwe, to ask: 1) What can political settlements analyses tell us about agricultural value chains and responses to COVID-19 in the countries studied? 2) How are structures and power relations throughout the value chains and actors’ responses to COVID-19 related to social differentiation in the context of African agriculture?
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Aguiar Borges, Luciane, and Ana de Jesus. SiEUGreen White Paper with best practices. Nordregio, 2024. http://dx.doi.org/10.6027/r2023:81403-2503.
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This report explores the potential of Urban Agriculture (UA) to enhance food security, improve resource efficiency, and promote smart, resilient, and circular cities. The discussion is framed within the scope of the Horizon 2020 project ‘Sino-European Innovative Green and Smart Cities’ (SiEUGreen) which explored different pathways to turn waste into resources for growing food in cities through the combination of different technologies. These technologies were tested in five showcases: Campus Ås, in Ås, Norway; World Gardens and Brabrand Fællesgartneriet community gardens in Aarhus, Denmark; Turunçlu greenhouse in Atakya, Turkey; Sanyuan Farm, in Beijing, and Futiancangjun residential area in Changsha, China. The insights and knowledge gained with these showcases were the basis to discuss the barriers and drivers of UA in the transition to more sustainable and resilient circular cities, across five aspects (1) environmental, (2) technological, (3) economic, (4) social and cultural and (5) regulatory and institutional issues. The results suggest that city food provision and UA systems can be designed considering circular economy regenerative cycles, but it is important to promote local research that can highlight policy solutions to address context-related barriers and limitations. Among the main lessons learned across the different aspects, we highlight: - The need for more evidence-based research, clear monitoring tools and evaluation/assessment of the different UA typologies and their impact on the environment, society and economy; - The implementation of innovative technological developments that support and promote UA for reduce; reuse, recycle/recover resources require more experimentation, large-scale tests and validation both concerning their efficiency, positive environmental impacts, as well as economic viability; - The need for high investments, difficulties accessing financial support, underdeveloped business case for circular resource models, and limited recognition of the positive and indirect economic, environmental benefits of UA are among the main barriers that limit the uptake of agriculture in cities; - Despite the significant role UA can play in advancing a circular economy (e.g., by supporting sustainable local food systems, promoting community resilience and reducing waste), behaviour and cultural barriers were found to have a deep impact when fostering a closed-loop approach to UA, especially concerning overcoming prejudice against waste as a resource, - Local governance and public policy play a central role in framing and supporting UA (e.g., incentives, funding, regulatory frameworks) as a pathway that enables close loops in cities.
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Ben-Dov, Yair, Douglass R. Miller, G. Gibson, M. Kosztarab, and K. Veilleux. Computerized Synthesis of Information on the Scale Insects of the World. United States Department of Agriculture, 2000. http://dx.doi.org/10.32747/2000.7573991.bard.
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Systematic information on all aspects of agriculture is a significant tool in finding solutions to various problems. This project was initiated to develop a searchable database on taxonomy, host plants, geographic distribution, economic importance and control of scale insects (Hemiptera: Coccoidea). A systematic database has been developed for 17 families of scale insects, namely, Aclerdidae, Asterolecaniidae, Beesoniidae, Carayonemidae, Cerococcidae, Coccidae, Conchaspididae, Dactylopiidae, Eriococcidae, Halimococcidae, Kerriidae, Lecanodiaspididae, Micrococcidae, Ortheziidae, Phenacoleachiidae, Phoenicococcidae and Pseudococcidae. These databases are now available on the Internet in ScaleNet - A Searchable Information System on Scale Insects - a Systematic Database of the Scale Insects of the World, (URL: http://www.sel.barc.usda.gov/scalenet/scalenet.htm ). Since 1997, the year in which ScaleNet was first placed on the Internet, this site became the best worldwide source of information on scale insects. The most reliable evaluation is that the site was 'visited' during 1999 by more than 50,000 users. Messages from the clientele of the site clearly indicate that it is widely used by researchers, applied entomologists, quarantine officers, students as well as the general public.
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Rajarajan, Kunasekaran, Alka Bharati, Hirdayesh Anuragi, et al. Status of perennial tree germplasm resources in India and their utilization in the context of global genome sequencing efforts. World Agroforestry, 2020. http://dx.doi.org/10.5716/wp20050.pdf.
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Tree species are characterized by their perennial growth habit, woody morphology, long juvenile period phase, mostly outcrossing behaviour, highly heterozygosity genetic makeup, and relatively high genetic diversity. The economically important trees have been an integral part of the human life system due to their provision of timber, fruit, fodder, and medicinal and/or health benefits. Despite its widespread application in agriculture, industrial and medicinal values, the molecular aspects of key economic traits of many tree species remain largely unexplored. Over the past two decades, research on forest tree genomics has generally lagged behind that of other agronomic crops. Genomic research on trees is motivated by the need to support genetic improvement programmes mostly for food trees and timber, and develop diagnostic tools to assist in recommendation for optimum conservation, restoration and management of natural populations. Research on long-lived woody perennials is extending our molecular knowledge and understanding of complex life histories and adaptations to the environment, enriching a field that has traditionally drawn its biological inference from a few short-lived herbaceous species. These concerns have fostered research aimed at deciphering the genomic basis of complex traits that are related to the adaptive value of trees. This review summarizes the highlights of tree genomics and offers some priorities for accelerating progress in the next decade.
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Friedman, Shmuel, Jon Wraith, and Dani Or. Geometrical Considerations and Interfacial Processes Affecting Electromagnetic Measurement of Soil Water Content by TDR and Remote Sensing Methods. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7580679.bard.
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Time Domain Reflectometry (TDR) and other in-situ and remote sensing dielectric methods for determining the soil water content had become standard in both research and practice in the last two decades. Limitations of existing dielectric methods in some soils, and introduction of new agricultural measurement devices or approaches based on soil dielectric properties mandate improved understanding of the relationship between the measured effective permittivity (dielectric constant) and the soil water content. Mounting evidence indicates that consideration must be given not only to the volume fractions of soil constituents, as most mixing models assume, but also to soil attributes and ambient temperature in order to reduce errors in interpreting measured effective permittivities. The major objective of the present research project was to investigate the effects of the soil geometrical attributes and interfacial processes (bound water) on the effective permittivity of the soil, and to develop a theoretical frame for improved, soil-specific effective permittivity- water content calibration curves, which are based on easily attainable soil properties. After initializing the experimental investigation of the effective permittivity - water content relationship, we realized that the first step for water content determination by the Time Domain Reflectometry (TDR) method, namely, the TDR measurement of the soil effective permittivity still requires standardization and improvement, and we also made more efforts than originally planned towards this objective. The findings of the BARD project, related to these two consequential steps involved in TDR measurement of the soil water content, are expected to improve the accuracy of soil water content determination by existing in-situ and remote sensing dielectric methods and to help evaluate new water content sensors based on soil electrical properties. A more precise water content determination is expected to result in reduced irrigation levels, a matter which is beneficial first to American and Israeli farmers, and also to hydrologists and environmentalists dealing with production and assessment of contamination hazards of this progressively more precious natural resource. The improved understanding of the way the soil geometrical attributes affect its effective permittivity is expected to contribute to our understanding and predicting capability of other, related soil transport properties such as electrical and thermal conductivity, and diffusion coefficients of solutes and gas molecules. In addition, to the originally planned research activities we also investigated other related problems and made many contributions of short and longer terms benefits. These efforts include: Developing a method and a special TDR probe for using TDR systems to determine also the soil's matric potential; Developing a methodology for utilizing the thermodielectric effect, namely, the variation of the soil's effective permittivity with temperature, to evaluate its specific surface area; Developing a simple method for characterizing particle shape by measuring the repose angle of a granular material avalanching in water; Measurements and characterization of the pore scale, saturation degree - dependent anisotropy factor for electrical and hydraulic conductivities; Studying the dielectric properties of cereal grains towards improved determination of their water content. A reliable evaluation of the soil textural attributes (e.g. the specific surface area mentioned above) and its water content is essential for intensive irrigation and fertilization processes and within extensive precision agriculture management. The findings of the present research project are expected to improve the determination of cereal grain water content by on-line dielectric methods. A precise evaluation of grain water content is essential for pricing and evaluation of drying-before-storage requirements, issues involving energy savings and commercial aspects of major economic importance to the American agriculture. The results and methodologies developed within the above mentioned side studies are expected to be beneficial to also other industrial and environmental practices requiring the water content determination and characterization of granular materials.
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Kimhi, Ayal, Barry Goodwin, Ashok Mishra, Avner Ahituv, and Yoav Kislev. The dynamics of off-farm employment, farm size, and farm structure. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7695877.bard.
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Objectives: (1) Preparing panel data sets for both the United States and Israel that contain a rich set of farm attributes, such as size, specialization, and output composition, and farmers’ characteristics such as off-farm employment status, education, and family composition. (2) Developing an empirical framework for the joint analysis of all the endogenous variables of interest in a dynamic setting. (3) Estimating simultaneous equations of the endogenous variables using the panel data sets from both countries. (4) Analyzing, using the empirical results, the possible effects of economic policies and institutional changes on the dynamics of the farm sector. An added objective is analyzing structural changes in farm sectors in additional countries. Background: Farm sectors in developed countries, including the U.S. and Israel, have experienced a sharp decline in their size and importance during the second half of the 20th century. The overall trend is towards fewer and larger farms that rely less on family labor. These structural changes have been a reaction to changes in technology, in government policies, and in market conditions: decreasing terms of trade, increasing alternative opportunities, and urbanization pressures. As these factors continue to change, so does the structure of the agricultural sector. Conclusions: We have shown that all major dimensions of structural changes in agriculture are closely interlinked. These include farm efficiency, farm scale, farm scope (diversification), and off-farm labor. We have also shown that these conclusions hold and perhaps even become stronger whenever dynamic aspects of structural adjustments are explicitly modeled using longitudinal data. While the results vary somewhat in the different applications, several common features are observed for both the U.S. and Israel. First, the trend towards the concentration of farm production in a smaller number of larger farm enterprises is likely to continue. Second, at the micro level, increased farm size is negatively associated with increased off-farm labor, with the causality going both ways. Third, the increase in farm size is mostly achieved by diversifying farm production into additional activities (crops or livestock). All these imply that the farm sector converges towards a bi-modal farm distribution, with some farms becoming commercial while the remaining farm households either exit farming altogether or continue producing but rely heavily on off-farm income. Implications: The primary scientific implication of this project is that one should not analyze a specific farm attribute in isolation. We have shown that controlling for the joint determination of the various farm and household attributes is crucial for obtaining meaningful empirical results. The policy implications are to some extent general but could be different in the two countries. The general implication is that farm policy is an important determinant of structural changes in the farm sector. For the U.S., we have shown the different effects of coupled and decoupled (direct) farm payments on the various farm attributes, and also shown that it is important to take into account the joint farm-household decisions in order to conduct a meaningful policy analysis. Only this kind of analysis explains the indirect effect of direct farm payments on farm production decisions. For Israel, we concluded that farm policy (or lack of farm policy) has contributed to the fast structural changes we observed over the last 25 years. The sharp change of direction in farm policy that started in the early 1980s has accelerated structural changes that could have been smoother otherwise. These accelerated structural changes most likely lead to welfare losses in rural areas.
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Shpigel, Nahum, Raul Barletta, Ilan Rosenshine, and Marcelo Chaffer. Identification and characterization of Mycobacterium paratuberculosis virulence genes expressed in vivo by negative selection. United States Department of Agriculture, 2004. http://dx.doi.org/10.32747/2004.7696510.bard.
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Mycobacterium avium subsp. paratuberculosis (MAP) is the etiological agent of a severe inflammatory bowel disease (IBD) in ruminants, known as Johne’s disease or paratuberculosis. Johne’s disease is considered to be one of the most serious diseases affecting dairy cattle both in Israel and worldwide. Heavy economic losses are incurred by dairy farmers due to the severe effect of subclinical infection on milk production, fertility, lower disease resistance and early culling. Its influence in the United States alone is staggering, causing an estimated loss of $1.5 billion to the agriculture industry every year. Isolation of MAP from intestinal tissue and blood of Crohn's patients has lead to concern that it plays a potential pathogenic role in promoting human IDB including Crohn’s disease. There is great concern following the identification of the organism in animal products and shedding of the organism to the environment by subclinically infected animals. Little is known about the molecular basis for MAP virulence. The goal of the original proposed research was to identify MAP genes that are required for the critical stage of initial infection and colonization of ruminants’ intestine by MAP. We proposed to develop and use signature tag mutagenesis (STM) screen to find MAP genes that are specifically required for survival in ruminants upon experimental infection. This research projected was approved as one-year feasibility study to prove the ability of the research team to establish the animal model for mutant screening and alternative in-vitro cell systems. In Israel, neonatal goat kids were repeatedly inoculated with either one of the following organisms; MAP K-10 strain and three transposon mutants of K-10 which were produced and screened by the US PI. Six months after the commencement of inoculation we have necropsied the goats and taken multiple tissue samples from the jejunum, ileum and mesenteric lymph nodes. Both PCR and histopathology analysis indicated on efficient MAP colonization of all the inoculated animals. We have established several systems in the Israeli PI’s laboratory; these include using IS900 PCR for the identification of MAP and using HSP65-based PCR for the differentiation between MAV and MAP. We used Southern blot analysis for the differentiation among transposon mutants of K-10. In addition the Israeli PI has set up a panel of in-vitro screening systems for MAP mutants. These include assays to test adhesion, phagocytosis and survival of MAP to/within macrophages, assays that determine the rate of MAPinduced apoptosis of macrophages and MAP-induced NO production by macrophages, and assays testing the interference with T cell ã Interferon production and T cell proliferation by MAP infected macrophages (macrophage studies were done in BoMac and RAW cell lines, mouse peritoneal macrophages and bovine peripheral blood monocytes derived macrophages, respectively). All partners involved in this project feel that we are currently on track with this novel, highly challenging and ambitious research project. We have managed to establish the above described research systems that will clearly enable us to achieve the original proposed scientific objectives. We have proven ourselves as excellent collaborative groups with very high levels of complementary expertise. The Israeli groups were very fortunate to work with the US group and in a very short time period to master numerous techniques in the field of Mycobacterium research. The Israeli group has proven its ability to run this complicated animal model. This research, if continued, may elucidate new and basic aspects related to the pathogenesis MAP. In addition the work may identify new targets for vaccine and drug development. Considering the possibility that MAP might be a cause of human Crohn’s disease, better understanding of virulence mechanisms of this organism might also be of public health interest as well.