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Registros recuperados: 27
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Braga nasuta (Cymothoidae): an ectoparasite of the Giant Amazonian fish Arapaima gigas (Osteoglossidae) fingerlings cultured in the Amazon region in Northern Brazil Biological Sciences
Jesus, Elson Cardoso de; Cardoso, Lucas; Ferreira, Tamiris Henrique; Martins, Mauricio Laterça; Rodrigues, Marília Danyelle Nunes.
 Isopods Cymothoidae are organisms that parasitize several fish species, both marine and freshwater, provoking important physiological alterations and secondary infections. The genus Braga was proposed to harbor three species of parasitic isopods in freshwater fish from South America: B. brasiliensis, B. cichlae and B. nasuta. Posteriorly, other four species were included: B. patagonica, B. amapaensis, B. fluviatilis and B. bachmanni. Regarding the geographical distribution of the genus, there are registers in Brazil, Argentina, Suriname and Paraguay. In this study, 3,625 fingerlings of pirarucu Arapaima gigas were examined from a commercial fish farm in the Amazon region, Pará State, to observe and identify possible parasites. A total of eleven...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.13.00.00-3 Amazon; Pirarucu; Farming; Parasite; Isopoda. Parasita em peixes.
Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/35080
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General aspects of physalis cultivation Ciência Rural
Muniz,Janaína; Kretzschmar,Aike Anneliese; Rufato,Leo; Pelizza,Tânia Regina; Rufato,Andrea De Rossi; Macedo,Tiago Afonso de.
The Physalis peruviana L. is an exotic fruit that belongs to the Solanaceae family with recent production in Brazil. This is presented as an alternative production with nutritional potential and economic value. The cape gooseberry plant has a high added value that can be used from its root to the fruit itself. The roots and leaves are rich in medicinal properties that are used in pharmacology. The fruit is sweet and have good content of vitamins A, C, iron, phosphorus and fiber, often used in making jellies, jams, juices and ice creams. To improve the plant canopy, but also contribute to the quality and appearance of the fruit produced some cultural practices such as staking, training systems, pruning and thinning are used. The aim of this review is to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Small fruit; Solanaceae; Physalis peruviana; Farming.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000600002
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Situación socio económica y ambiental de los productores de Acatzingo Puebla por el derrame de hidrocarburo en suelos agrícolas. Colegio de Postgraduados
Rivera Pineda, Franklin.
En el presente estudio se aborda el siniestro ocurrido en el municipio de Acatzingo, Puebla en enero del año 2002. El derrame afectó aproximadamente 50 ha de cultivo, con efectos socioambientales, económicos y de producción en familias campesinas del municipio. Para conocer su impacto ocho años después, se encuestaron 159 productores con características socioeconómicas y productivas similares, 80 con terrenos afectados por el siniestro y 79 no afectados directamente, con el propósito de comparar respuestas en el tiempo. El promedio de hectáreas para cultivo por productor es de 1.7 ha con una media de 0.5 a 0.9 ha que les fueron contaminadas. El estudio mostró que 46.3% de los productores afectados opinó que los suelos aún están contaminados pero un 74% de...
Palavras-chave: Contaminación de suelos agrícolas; Cultivo; Campesino; Derrame de hidrocarburos; Desastre natural; Impacto ambiental; Ingresos; Producción; Salud; Contamination of agricultural soils; Farming; Farmer; Oil spill; Natural disaster; Environmental impact; Income; Production; Health; EDAR; Estrategias para el Desarrollo Agrícola Regional; Doctorado.
Ano: 2011 URL: http://hdl.handle.net/10521/657
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Using the politicized institutional analysis and development framework to analyze (adaptive) comanagement: farming and water resources in England Ecology and Society
Whaley, Luke; Department of Geography, Kings College London; lukewhaley1@gmail.com; Weatherhead, Edward K.; Cranfield Water Science Institute, Cranfield University; k.weatherhead@cranfield.ac.uk.
The challenge of managing water resources in England is becoming increasingly complex and uncertain, a situation reflected in many countries around the world. Cooperative and participatory forms of governance are now seen as one way of addressing this challenge. We investigated this assertion by focusing on five farmer irrigator groups in the low-lying east of England. The groups’ relationship with water resources management was interpreted through the lens of comanagement, which over the past decade has increasingly merged with the field of adaptive management and related concepts that derive from resilience thinking and complex adaptive systems theory. Working within a critical realist paradigm, our analysis was guided by the politicized...
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptive comanagement; Comanagement; England; Farming; Politicized institutional analysis and development framework; Water resources.
Ano: 2015
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The Role of Governance in Agricultural Expansion and Intensification: a Global Study of Arable Agriculture Ecology and Society
Mandemaker, Menno; Chairgroup of Land Dynamics, Wageningen University; menno.mandemaker@wur.nl; Bakker, Martha; Chairgroup of Land Dynamics, Wageningen University; Martha.bakker@wur.nl; Stoorvogel, Jetse; Chairgroup of Land Dynamics, Wageningen University; jetse.stoorvogel@wur.nl.
In this research we studied empirical relationships between agricultural production dynamics and six quantitative World Bank governance indicators for 173 countries between 1975 and 2007. It is hypothesized that in countries with lower quality of governance, agricultural production increases are more likely to be achieved by area expansions than by increases in yields. We distinguished four groups of countries: those with both area and yield increases; those with increasing yields but decreasing area; those with decreasing yields but a growing area; and those with both declines in yields and area. We analyzed differences between these four groups, and also analyzed governance-production relationships within these groups. On average, quality of governance...
Tipo: Peer-Reviewed Reports Palavras-chave: Cropland; Development; Empirical; Farming; Governance; Intensification.
Ano: 2011
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Tagging Atlantic bluefin tuna from a farming cage: An attempt to reduce handling times for large scale deployments ArchiMer
Rouyer, Tristan; Bonhommeau, Sylvain; Giordano, Nicolas; Ellul, Saviour; Ellul, Giovanni; Deguara, Simeon; Wendling, Bertrand; Belhaj, Mohamed Moez; Kerzerho, Vincent; Bernard, Serge.
Our knowledge on the biology and ecology of marine species have improved greatly through the use of archival tags by enabling the collection on information from individual in the wild. This is specifically true for large pelagic species such as the Atlantic Bluefin tuna (ABFT, Thunnus thynnus) where, for the first time, it has been possible to confirm through fisheries-independent data, migration patterns, reproductive and feeding behaviours and habitat use. However, large-scale tagging experiments that would enable researchers to tackle group behaviour are difficult to set up. On the one hand, the impact of the actual tagging operation should be as minimal as possible to avoid any change in behaviour of the fish which could influence tag data analyses. On...
Tipo: Text Palavras-chave: Large Atlantic bluefin tuna; Electronic tagging; Release; Farming.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00466/57818/60365.pdf
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From Pasture Land to Farm Plots, Triggers and Motivations for Land Use Changes in Afar, Ethiopia AgEcon
Kotu, Bekele Hundie.
Communal land use system has existed in pastoral Afar (as in many other pastoral areas) since time of immemorial accommodating the interests of different user groups. This form of land use system, which has adapted to the harsh environment in which herders raise their livestock, enables efficient utilization of scattered pastoral resources since it accommodates constant mobility of livestock. In contrast to the mobile way of life, which characterizes pastoralism, farming as a sedentary activity is only marginally present in the lowlands of the Afar region. However, the traditional land-use system in Afar is changing nowadays if favor farming because of various reasons. This paper explains such changes mainly based the data collected through a household...
Tipo: Conference Paper or Presentation Palavras-chave: Land use; Pastoralists; Farming; Drought; Afar; Ethiopia; Agricultural and Food Policy; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Risk and Uncertainty; Q15; Q24.
Ano: 2009 URL: http://purl.umn.edu/51276
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O MANEJO DA LAVOURA CANAVIEIRA NA ZONA DA MATA NORTE DE PERNAMBUCO AgEcon
Ferreira, Patricia Borges; Vital, Tales Wanderley; Lima, Jose Ferreora.
The harvest with raw cane is increasingly present in the system of production of sugar cane in Brazil. From the decade of 90, precisely in the year 1997, the sucroalcooleira agribusiness in the state of Sao Paulo, the main centre Brazilian producer, stated adapt its system of harvesting of cane without burning prior to meet environmental Rio Branco – Acre, 20 a 23 de julho de 2008 Sociedade Brasileira de Economia, Administração e Sociologia Rural restrictions. This paper presents the current time the culture of sugar cane for the collection of raw cane and the cane burning in the region of the forest north of Pernambuco The focus of this work was to analyze the strategies of crops used by the main companies sucroalcooleiras the region.
Tipo: Conference Paper or Presentation Palavras-chave: Harvesting; Sugar cane; Farming; Strategies; Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/96282
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CAP reform and its impact on structural change and productivity growth: A cross country analysis AgEcon
Kazukauskas, Andrius; Newman, Carol F..
The recent reforms of the Common Agricultural Policy (CAP) have exposed the European agricultural sector to a new set of constraints and challenges. The decoupling of direct payments from production is expected to make production decisions more market-oriented as farmers move from mainly subsidy revenue maximization objectives toward profit maximizing behaviour. However, ex-post analyses of the productivity of farms have yet to uncover any evidence of a positive effect of the decoupling policy on farm productivity. Using the Irish, Danish and Dutch farm level data, we identify the extent to which both system and product switching after the introduction of decoupling has occurred and to what extent these changes have contributed to productivity growth in...
Tipo: Conference Paper or Presentation Palavras-chave: Productivity; Semiparametric estimation; Farming; Decoupling; Agricultural and Food Policy; Farm Management; Land Economics/Use; D24; Q12; Q18.
Ano: 2010 URL: http://purl.umn.edu/61103
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A Strategic Approach to the Implementation of Precision Agriculture Principles in Cash Crop Farming AgEcon
Maine, Ntsikane; Nell, Wilhelm T..
Precision agriculture is one of the important agricultural technologies that can assist farmers and managers in promoting long-term success. Precision agriculture can help farm managers increase their management capacity, which is of utmost importance in the highly competitive modern agriculture. Increased yields and/or efficient input use can also be achieved with precision agriculture. Precision agriculture also involve a large capital outlay and requires skills in interpreting the masses of generated data. Modern farmers have to engage in pro-active thinking with regard to suitable agricultural systems that can enhance sustainable success of their farming businesses. Farm managers who are contemplating on getting involved in precision agriculture need...
Tipo: Conference Paper or Presentation Palavras-chave: Precision agriculture; Strategic approach; Farming; Farming success; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2005 URL: http://purl.umn.edu/24259
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The Role of Consultants for Danish Farmers Coping with the Change in Farming Conditions AgEcon
Krabbe, Henning.
An overview of a modern consultancy service to Danish farmers is given. The Danish model includes technical advice, farm management and accounting. Good consultants, new products, goal settings and campaigns are described.
Tipo: Conference Paper or Presentation Palavras-chave: Consulting; Key account consultants; Accounting; Goal setting; Farming; LandboNord; Denmark; Farm Management; Teaching/Communication/Extension/Profession.
Ano: 2005 URL: http://purl.umn.edu/24277
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An Economic Evaluation of Conservation Farming Practices for the Central West of NSW AgEcon
Farrell, Terence C..
Economic benefits that arise from conservation farming practices need to be assessed over several years to account for improvements in soil structure and nutrient levels. A gross margin model was used to assess benefits over the eight-year period 1999-2006 for 12 regions in the central west of NSW. The annual benefits from improved soil structure ranged from $2.46 to $12.82 per hectare (ha). A reduction in tractor power produced annual savings in the range of $0.60 to $4.05 per ha. The cost of soil compaction by livestock grazing on crop areas ranged from $3.41 to $14.90 per ha. The break-even time to pay back costs for the conversion of machinery for no-till seeding was two to three seasons.
Tipo: Conference Paper or Presentation Palavras-chave: No-till; Conservation; Farming; Tillage; Cropping systems; Environmental Economics and Policy; Farm Management.
Ano: 2008 URL: http://purl.umn.edu/6177
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FutureFarm vision AgEcon
Charvat, Karel; Gnip, Pavel; Mayer, Walter H..
This paper defines the first version of a vision of Future Farming project and also a knowledge management system used by European farms which will be designed and developed by the Future Farm project. An important part of the vision is a definition of external drivers and their influence on farm business in future. Paper is looking on a situation in three periods: short (2013), middle (2020) and long-term (2030). Our vision expects that the farming system will continuously converge to the situation of two types of farm: an industrial farm, which will guarantee both the food safety and the food security for European citizens, and multifunctional farms focused on environment protection. The recommendation proposes an architecture based on communication of...
Tipo: Journal Article Palavras-chave: Farming; External drivers; Future vision; Knowledge management; SOA; Farm Management.
Ano: 2009 URL: http://purl.umn.edu/96856
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Early indicators of the extent of climate change on Australian farms AgEcon
Crean, Jason; Parton, Kevin A.; Hayman, Peter; Mullen, John D..
More research is needed before we know the implications of climate change for Australian farms. Nevertheless given the information at hand, an assessment can be made of some early indicators. First, the severity of the recent drought was compared with earlier droughts. Second, the trend in rainfall was examined. Third, projections of climate change were reviewed to assess the likely course of climate variability, and hence provide a picture of the severity of future droughts. Although further research is warranted, the indications are that even if rainfall is no lower in future droughts, they may seem more severe because rising temperatures will tend to increase evaporation and reduce runoff.
Tipo: Article Palavras-chave: Drought; Climate change; Climate variability; Farming; Farm Management.
Ano: 2010 URL: http://purl.umn.edu/121496
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Comparing the profitability of farming and forestry AgEcon
Evison, David.
This paper updates an analysis of returns from major productive land uses in New Zealand carried out in 2008. Trends in profitability over time are shown, and a preliminary investigation of the relationship between land-use change towards forestry (new land planting) and forestry profitability is described.
Tipo: Conference Paper or Presentation Palavras-chave: Profitability; Farming; Forestry; Land use; Land-use change; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Livestock Production/Industries.
Ano: 2010 URL: http://purl.umn.edu/99682
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Farming and the Internet: Reasons for Non-Use AgEcon
Briggeman, Brian C.; Whitacre, Brian E..
Rural broadband infrastructure and service has received a significant amount of funding through the American Recovery and Reinvestment Act of 2009. These funds should increase broadband availability, but will broadband be used in rural areas and in particular by farmers? This paper uses Agricultural Resource Management Survey data to investigate why the majority of U.S. farmers choose not to use the Internet in their farm business. Although frequently cited by policymakers, concerns about inadequate Internet service or security actually account for a small percentage of responses. This research identifies targeted educational programs that focus on alleviating perceived barriers to Internet use.
Tipo: Journal Article Palavras-chave: ARMS; Farming; Internet; Multinomial logit; Non-use; Agribusiness; Community/Rural/Urban Development; Farm Management.
Ano: 2010 URL: http://purl.umn.edu/97008
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Some characteristics of multiple job holding by New Zealand farm men and women AgEcon
Taylor, Nick; McClintock, Wayne.
Previous research indicates a high level of multiple job holding amongst New Zealand farm men and women. Interviews of sixty farm men and women holding multiple jobs in the Ashburton District in 2003 were part of a larger research programme. Respondents identified a wide range of work undertaken in addition to farm work. They are tending to hold these jobs longer term, showing multiple job holding amongst is established as a feature of farm households. Reasons for holding multiple jobs are complex, with a range of social and economic benefits identified. Although there are effects on work-life balance.
Tipo: Conference Paper or Presentation Palavras-chave: Farming; Employment; Pluriactivity; Social change; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use.
Ano: 2004 URL: http://purl.umn.edu/97775
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FARM OPERATIONS FACING DEVELOPMENT: RESULTS FROM THE CENSUS LONGITUDINAL FILE AgEcon
Hoppe, Robert A.; Korb, Penelope J..
This paper examines farms in areas undergoing development, using a longitudinal file constructed by linking several agricultural censuses. Individual farms are followed over the 1982-97 period. Survival, exit, and entrance rates are presented for three types of farms: recreational, adaptive, and traditional. The three types of farms are located where one would expect. Traditional farms are concentrated in nonmetropolitan (nonmetro) counties, while adaptive farms are concentrated in metro core counties. Recreational farms are least common in nonmetro nonadjacent areas, where off-farm opportunities are fewest. The concentration of adaptive farms in metro core counties does not appear to be the result of these farms simply surviving an urban...
Tipo: Conference Paper or Presentation Palavras-chave: Urban development; Urbanization; Specialty agriculture; High-value agriculture; Farming; Farm structure; Farm Management.
Ano: 2001 URL: http://purl.umn.edu/20771
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Collaboration within the UK Farm Industry AgEcon
Alliston, John C.; Newton, David; Gonzalez-Diaz, Francisco.
This paper addresses the effectiveness of the traditional models of cooperation, and analyses best practices in other commercial sectors in order to identify transferable elements. The Report of the Policy Commission on the Future of Farming and Food (2002) identified a need for farmers to cooperate and collaborate more effectively in their business activities in order to be more competitive. The Plunkett Foundation (1992) suggests that in order to play an important role in the maintenance of the rural economy the Farmer Controlled Business should adopt more imaginative approaches. Using an inductive grounded theory approach and guided interview techniques, experts in the field of business collaboration were selected using a purposive sample approach and...
Tipo: Conference Paper or Presentation Palavras-chave: Cooperatives; Collaboration; Supply food chain; Organizational structure; Farming; Agribusiness; Industrial Organization.
Ano: 2005 URL: http://purl.umn.edu/24299
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Eliciting Risk Preferences: A Field Experiment on a Sample of French Farmers AgEcon
Bougherara, Douadia; Gassmann, Xavier; Piet, Laurent.
We designed a field experiment involving real payments to elicit farmers’ risk preferences. Farmers are a very interesting sample to study since risk has always played an important role in agricultural producers’ decisions. Besides, European farmers may face more risky situations in the future. In this context, it is very important for any economic analysis focusing on agriculture to correctly assess farmers’ behaviour in the face of different sources of risk. We test for two descriptions of farmers’ behaviour: expected utility and cumulative prospect theory. We use two elicitation methods based on the procedures of Holt and Laury (2002) and Tanaka et al. (2010) on a sample of 30 French farmers. The experiment consists in asking subjects to make series of...
Tipo: Conference Paper or Presentation Palavras-chave: Risk Attitudes; Field Experiment; Farming; Risk and Uncertainty; C93; D81; Q10.
Ano: 2011 URL: http://purl.umn.edu/114266
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