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	Provedor de dados 31 (10) 89 (3) 2 (2) 5 (2) 190 (1) 32 (1) 52 (1) 55 (1) 63 (1) 87 (1) 96 (1) Mais... Autor Aguilar,Fredy Armando Aguilar (1) Almeida Paz,ICL (1) Alves,FMS (1) Antona, Martine (1) Avila,VS de (1) Azevedo,Rafael Vieira de (1) Babilônia, José Libêncio; Centro Federal de Educação Tecnológica de Mato Grosso (1) Barbosa, Emanuela Nataly Ribeiro; UFRPE (1) Boude, Jp (1) Braga,Luís Gustavo Tavares (1) Brennan, John P. (1) Brum,PAR de (1) Caldara,FR (1) Carvalho,João Sérgio Oliveira (1) Chudleigh, Peter D. (1) Correr,Cassyano Januário (1) Cullen, Ross (1) Cyrino,José Eurico Possebon (1) Daures, Fabienne (1) Deponti, Gilmar (1) Mais... Palavra-chave Economic evaluation (24) Crop Production/Industries (6) Agribusiness (4) Farm Management (4) Production Economics (4) Australia (3) Food Security and Poverty (3) International Development (3) Resource /Energy Economics and Policy (3) Benefits (2) Brittany (2) Canola (2) Clams (2) Community/Rural/Urban Development (2) Environmental Economics and Policy (2) Fisheries (2) Performance (2) Production costs (2) Research and Development/Tech Change/Emerging Technologies (2) Rice (2) Mais... Tipo do documento Info:eu-repo/semantics/article (10) Book (3) Working or Discussion Paper (3) Conference Paper or Presentation (2) Text (2) Presentation (1) Report (1) Mais... Ano 2019 (2) 2017 (1) 2014 (1) 2013 (3) 2012 (2) 2009 (2) 2008 (1) 2007 (1) 2006 (1) 2004 (1) 2003 (2) 2001 (1) 1999 (3) 1998 (1) 1997 (1) 1990 (1) Mais... País Brazil (11) United States (10) France (2) Mexico (1) Idioma Inglês (19) Francês (2) Português (2) Espanhol (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 24 Primeira ... 1 2 ... Última AGROECOLOGICAL ASPECTS OF EVALUATING AGRICULTURAL R&D 31 Wood, Stanley; Pardey, Philip G.. In this paper we describe how biophysical data can be used, in conjunction with agroecological concepts and multimarket economic models, to systematically evaluate the effects of agricultural R&D in ways that inform research priority setting and resource-allocation decisions. Agroecological zones can be devised to help estimate the varying, site-specific responses to new agricultural technologies and to evaluate the potential for research to spill over from one agroecological zone to another. The application of agroecological zonation procedures in an international, agricultural research context is given special attention. Tipo: Working or Discussion Paper Palavras-chave: Biophysical; Economic evaluation; Research priorities; Research and Development/Tech Change/Emerging Technologies; International R&D. Ano: 1997 URL: http://purl.umn.edu/16109 Agroindustrial byproducts in diets for Nile tilapia juveniles 96 Carvalho,João Sérgio Oliveira; Azevedo,Rafael Vieira de; Ramos,Ana Paula de Souza; Braga,Luís Gustavo Tavares. This study was conducted to evaluate performance and body composition of tilapia (Oreochromis niloticus) fed diets containing byproducts aerial parts of cassava meal (Manihot esculenta), mesquite pod meal (Prosopis juliflora), cocoa meal (Theobroma cacao) and palm kernel cake (Elaeis guineensis) and to analyze the economic viability of the feed. A total of 1,350 juvenile males (100 g) were distributed in 15 cages (1 m³) in completely randomized design with five treatments (basal diet and four test diets) and three replicates. The following aspects were evaluated: final weight, total feed intake, total weight gain, feed conversion, specific growth rate, protein efficiency ratio and survival rate, dry matter, crude protein, fat and ash body, the average cost... Tipo: Info:eu-repo/semantics/article Palavras-chave: Economic evaluation; Feed alternative; Oreochromis niloticus; Productive performance. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300002 An economic evaluation of the osmoregulation gene technology to the Australian wheat industry 31 Farquharson, Robert J.; Morgan, J.M.; Brennan, John P.. Episodes of rainfall irregularity and soil moisture deficit have focused attention on the widespread limitation of water supply on winter cereal crop production in Australia. This has motivated a number of efforts at breeding for improved drought tolerance. A recent example involves a cellular adaptation which mitigates water loss through solute accumulation (osmoregulation or osmotic adjustment). An assessment of the performance of osmoregulation yield response in the presence of climate change found that wheat cultivars with this gene are unlikely to be adversely affected by hotter and drier conditions across the wheat belt. The results of an economic evaluation of potential future innovations (wheat cultivars) from the osmoregulation gene technology are... Tipo: Conference Paper or Presentation Palavras-chave: Economic evaluation; Wheat breeding; Osmoregulation; Crop Production/Industries; Research Methods/ Statistical Methods. Ano: 2004 URL: http://purl.umn.edu/58446 An Emergent Economics of Ecosystem Management 31 Hearnshaw, Edward J.S.; Cullen, Ross; Hughey, Kenneth F.D.. Economics is an evolving and emerging field of study, so is the management of ecosystems. As such, this paper delineates the co-evolution of economic evaluation that reflects the various recognized ecosystem management approaches of anticipative, adaptive and capacitive ecosystem management. Each management approach is critiqued and from this theoretical analysis an emergent approach for the management of ecosystem is put forward, which accordingly suggests an alternative methodological approach for economic evaluations. Tipo: Conference Paper or Presentation Palavras-chave: Complexity; Creativity; Economic evaluation; Ecosystem management; Evolution; Open systems; Rationality; Resource /Energy Economics and Policy. Ano: 2006 URL: http://purl.umn.edu/31957 Breeding and quality analysis of rapeseed 31 Chudleigh, Peter D.. This study is an ex-post, economic assessment of two projects supported by ACIAR and concerned with the breeding and quality analysis of rapeseed in Australia and China. These projects were carried out sequentially with the first one commencing on 1 July 1986. The second one was completed on 30 June 1991. The projects were essentially an exchange of knowledge and germplasm of rape (Brassica napus) between plant breeders in Australia and China. The projects resulted in the release of varieties of rape that yielded improved seed in Australia, China and other developed and developing countries. An economic evaluation of these projects was made in 1991 and the results published in Chudleigh (1991). Assumptions made in the 1991 analysis have now been updated.... Tipo: Book Palavras-chave: China; Australia; Rapeseed; Canola; Ex-post economic assessment; Breeding; Quality analysis; Economic evaluation; Benefits; Crop Production/Industries; Farm Management; International Development; Production Economics. Ano: 1999 URL: http://purl.umn.edu/47691 Conservation Agriculture in Trouble? Estimating the Economic Impact of an Eventual Glyphosate Prohibition in Spain 87 PARDO,G.; MARTÍNEZ,Y.. ABSTRACT: Weed control is a crucial aspect in many conservation agriculture systems given that costs and time savings from avoiding tillage are closely linked to the use of effective and environmental friendly herbicides. This has led to the widespread use of glyphosate in farms, as it is a broad-spectrum, easily degradable, low- cost herbicide. The recent debate on the safety of glyphosate and on the excessive use of chemical herbicides in food production has caused concern on farmers about the possible economic effects of a virtual ban on glyphosate. The aim of this paper is to estimate the costs associated with an eventual prohibition of glyphosate in Spanish conservation agriculture areas. The costs of different alternative weed control strategies for... Tipo: Info:eu-repo/semantics/article Palavras-chave: Conservation systems; Conventional tillage; Economic evaluation; Weed control. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100166 COST OF IGNORANCE- EVALUATING A LAND AND WATER MANAGEMENT PLAN 31 Hill, Christine M.. This paper outlines the impacts of ignoring the costs to the community of increased rural waterlogging and salinity. It identifies the cost of no further action, and the costs and benefits of undertaking a land and water management plan. The processes of developing and evaluating the plan are explained. Difficulties in obtaining data, both for the community and the economist, are discussed. Data availability then shapes the range of costs and benefits that can be evaluated. The paper looks at the process and results of a case study of a Land and Water Management Plan for an irrigation district in central New South Wales. The case study demonstrated all the complexities of community and professional conflict, difficulties in data availability, budget and... Tipo: Presentation Palavras-chave: Land and water management plan; Economic evaluation; Salinity; Waterlogging; Land Economics/Use; Resource /Energy Economics and Policy. Ano: 1999 URL: http://purl.umn.edu/123814 Economic evaluation of treatments for chronic hepatitis B 55 Wiens,Astrid; Lenzi,Luana; Venson,Rafael; Pedroso,Maria Lúcia Alves; Correr,Cassyano Januário; Pontarolo,Roberto. The aim of this study was to conduct a cost-utility study of adefovir, entecavir, interferon alpha, pegylated interferon alpha, lamivudine and tenofovir for chronic hepatitis B in the context of Brazilian Public Health Care System. A systematic review was carried out for efficacy and safety. Another review was performed to collect utility data and transition probabilities between health states. A Markov model was developed in a time horizon of 40 years with annual cycles for three groups of: HBeAg positive, HBeAg negative, and all patients. These strategies were compared to a fourth group that received no treatment. Discount rates of 5% were applied and sensitivity analyses were performed. Tenofovir offered the best cost-utility ratio for the three... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chronic hepatitis B; Economic evaluation; Treatments. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000400006 Effect of different dietary concentrations of Amino Acids on the performance of two different Broiler Strains 89 Ebling,PD; Ribeiro,AML; Trevizan,L; Silva,ICM da; Kessler,A de M; Rubin,LL. Four Nutritional Programs (NP) used in the Brazilian poultry industry were tested in two broiler strains (Cobb 500 and Ross 308). NP varied in the concentrations of their main essential amino acids (AA) and were classified as Low, Regular, High and Mixed (high AA concentrations up to 21 days and regular concentrations after that). Minimum digestible Met+Cys/Lys, Thr/Lys, Arg/Lys, Ile/Lys, and Val/Lys ratios were 0.74, 0.64, 1.05, 0.65 and 0.75, respectively, in all NP, and no minimum amount of CP was fixed. There were no interactions between strain and NP for any of the evaluated responses. From 1 to 47 days of age, birds fed the Low NP presented lower average body weight and body weight gain (BWG). The high NP allowed for better feed conversion ratio... Tipo: Info:eu-repo/semantics/article Palavras-chave: Economic evaluation; Brazilian nutritional programs; Carcass yield. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000400008 Environmental and social values of river water: examples from the Menik Ganga, Sri Lanka. 31 Dissanayake, Priyanka; Smakhtin, Vladimir U.. Many decisions on water allocation in river basins are made on economic grounds. Environmental and social benefits of water should also be considered in river basin management, and attempts should be made to value them similarly. This is not a straightforward task and very few studies have directly addressed this issue to date. In this paper, the Menik Ganga (River) in southern Sri Lanka is used as a case study to attempt and evaluate the costs and benefits of environmental water allocations, referred to as ‘environmental flows’ (EF). In this study, a broad definition of EF is used: the components of EF evaluated include the requirements of the religious festival, the requirements of the Yala National Park, the requirements of the Pilinnawa Coastal Wetland... Tipo: Working or Discussion Paper Palavras-chave: Rivers; Ecosystems; Wetlands; Wildlife; Fisheries; Water allocation; Water requirements; Case studies; Economic evaluation; Environmental Economics and Policy; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy. Ano: 2007 URL: http://purl.umn.edu/91876 Evaluación económica de la restauración hidrológica ambiental de la microcuenca Carrillo-El Tigre en Angangueo Michoacán 32 Moreno Honorato, Natividad. La presente investigación, es una evaluación económica que se realizó para obtener la rentabilidad del proyecto denominado: “Restauración Hidrológica Ambiental de la Microcuenca de Aporte a la Población de Mineral de Angangueo, Michoacán, (Microcuenca Carrillo-El Tigre); Mediante la Implementación de Prácticas de Manejo del Agua y Preservación de Suelos (MAPS)”. El proyecto se ejecutó después del fenómeno hidrometeorológico extremo que se presentó en febrero del 2010, dejando cuantiosos daños y pérdidas en el área afectada, la cual presentaba deterioro ambiental, agravando con ello la problemática. Ante tal situación, se propuso establecer prácticas de MAPS (presas de mampostería, gaviones, geocostales y piedra acomodada, así como un cabeceo de cárcava),... Palavras-chave: Evaluación económica; Restauración ambiental; Análisis costo-beneficio; Indicadores; Rentabilidad; Economic evaluation; Environmental restoration; Cost-benefit analysis; Indicators; Profitability; Hidrociencias; Maestría. Ano: 2013 URL: http://hdl.handle.net/10521/2053 Evaluating Marketing Channel Options for Small-Scale Fruit and Vegetable Producers 31 LeRoux, Matthew N.; Schmit, Todd M.; Roth, Monika; Streeter, Deborah H.. An investigation of the relative costs and benefits of marketing channels used by typical smallscale diversified vegetable crop producers is conducted. Using case study evidence from four small farms in Central New York, this study compares the performance of wholesale and direct marketing channels, including how the factors of risk, owner and paid labor, price, lifestyle preferences, and sales volume interact to impact optimal market channel selection. Given the highly perishable nature of the crops grown, along with the risks and potential sales volume of particular channels, a combination of different marketing channels is needed to maximize overall firm performance. Accordingly, a ranking system is developed to summarize the major firm-specific factors... Tipo: Working or Discussion Paper Palavras-chave: Local food; Marketing; Wholesale; Direct; Marketing channels; Economic evaluation; Agribusiness; Community/Rural/Urban Development; Crop Production/Industries; Demand and Price Analysis; Production Economics. Ano: 2009 URL: http://purl.umn.edu/49006 Impact of exposure to cold on layer production 89 Alves,FMS; Felix,GA; Almeida Paz,ICL; Nääs,IA; Souza,GM; Caldara,FR; Garcia,RG. Infrared thermographic images were used to evaluate the effect of the exposure of layers to cold. In this trial, 540 Isa Brown® layers with an average age of 69 weeks were housed in a conventional layer house typically used in Brazil during a period of cold environmental temperatures. Environmental and heat-transference data were recorded between July 13-16, 2010. It was verified that layers under cold stress conditions lost four times more energy that the recommendations trying to maintain their body temperature. Due to their reduced feed intake capacity, hens are not capable of increasing the availability of the metabolic energy required to maintain their body temperature and egg production, consequently resulting in economic losses. Tipo: Info:eu-repo/semantics/article Palavras-chave: Infrared image; Housing environment; Heat exchange; Economic evaluation; Egg production. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000300010 Improved drying of high moisture grains 31 McLeod, Ross. An economic evaluation of three ACIAR projects whose primary objective was to improve postharvest grain drying in Thailand and Australia is provided in this report. During 1983–1996, ACIAR invested A$1.2 million in research designed to improve grain drying in these countries. Based on current adoption, the investment has resulted in a realised net present value of A$3.6 million. A benefit–cost ratio of 3:1 was estimated for the projects. In other words, for each dollar invested, three dollars of project benefits have resulted. A high proportion of realised benefits was estimated to accrue to Australian rice producers, through reduced grain drying costs, while benefits have also been captured by the Thai rice production industry through reduced postharvest... Tipo: Book Palavras-chave: Economic evaluation; Australia; Thailand; Postharvest grain drying; Rice; Net present value; Benefit-cost ratio; High impact; Benefits; Grain drying; Agribusiness; Crop Production/Industries; Farm Management; Food Security and Poverty; International Development; Production Economics. Ano: 1999 URL: http://purl.umn.edu/47692 Inclusão da farinha de varredura de mandioca em rações de frangos de corte - DOI: 10.4025/actascianimsci.v30i2.4680 2 Freitas, Cleber Rondinelli Gomes de; UFRPE; Ludke, Maria do Carmo Mohaupt Marques; UFRPE; Ludke, Jorge Vitor; UFRPE; Rabello, Carlos Bôa-Viagem; UFRPE; Nascimento, Guilherme Rodrigues do; UFRPE; Barbosa, Emanuela Nataly Ribeiro; UFRPE. O trabalho objetivou avaliar o desempenho, a viabilidade econômica e as características de carcaça de frangos de corte alimentados com dietas contendo níveis de inclusão (0,0; 7,5; 15,0; 22,5 e 30,0%) de farinha de varredura de mandioca (FVM). Foram utilizados 360 pintainhos de um dia, distribuídos em um delineamento em blocos casualizados com cinco tratamentos e seis repetições contendo 12 aves por parcela. Os parâmetros avaliados foram o consumo de ração, ganho de peso, conversão alimentar, custo da alimentação, renda bruta, margem bruta e rentabilidade. Aos 42 dias, foram abatidos dois frangos por parcela para avaliação do peso: da carcaça, dos cortes, das vísceras e da gordura total, para determinar o rendimento de carcaça e calcular as porcentagens de... Palavras-chave: 5.04.03.00-1 Nutrição e Alimentação Animal alimento alternativo; Avaliação econômica; Aves; Carcaça; Desempenho. alternative feedstuff; Economic evaluation; Birds; Carcass; Performance. Ano: 2008 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/4680 La mytiliculture en Hollande et en Espagne 5 Antona, Martine; Paquotte, Philippe. This article is the second part of an analysis of mussel-farming sectors in France, Holland and Spain. The first part, devoted to France, addressed the national offering's stresses of adapting to changes in the mussel market. From the viewpoint of questions raised within the profession while preparing the French mussel-farming sector for the regulatory and economic environment of 1992, Spain and Holland offer benchmarks in terms of structuring the offer and planning markets. This article presents the mussel-farming business in Spain and Holland from these two angles. Tipo: Text Palavras-chave: Economic evaluation; Urshin; Clams; Shellfish; Fleets; Metier; Fishing activities; Bay of Morbihan; Brittany; SEM; Cout; Indicateurs economique; Palourde; Oursin; Bivalves; Typologie; Flottilles; Metier; Activités de pêche; Golfe du Morbihan. Ano: 1990 URL: http://archimer.ifremer.fr/doc/1990/rapport-2252.pdf La pêche de loisir dans le golfe du Morbihan 5 Boude, Jp; Lesueur, M; Daures, Fabienne; Guyader, Olivier; Drouot, Bruno. Leisure fishing, open to everyone and without a license, is a leisure activity in which many people are interested. Conversely to other harvesting activities such as fresh water fishing and hunting, it has practically not been studied until now (Appéré et Bonnieux, 2002). This study, dedicated to practice of leisure fishing at sea in the Gulf of Morbihan, set itself several objectives: - collect and assemble the available knowledge on regulations and practice of maritime leisure fishing - assess the amount of harvesting of certain recreational types of fishing and the economic impact generated by this activity, - highlight the problems of existing or potential cohabitations among the various users of the space and resources in the Gulf. - develop an... Tipo: Text Palavras-chave: Economic evaluation; Shellfish; Clams; Morbihan bay; Brittany; Leisure fishing; Cout de transport; Palourdes; Interactions; Conflits d'usage; Evaluation economique; Impact sur la ressource; Reglementation; Peche en bateau; Peche de plaisance; Peche à pied; Peche de loisir; Activités de peche; Golfe du morbihan. Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/rapport-2244.pdf Performance of female broiler breeders submitted to different feeding schedules 89 Avila,VS de; Penz Jr.,AM; Brum,PAR de; Rosa,PS; Guidoni,AL; Figueiredo,ÉAP de. The performance of Arbor Acres broiler breeders (1,296 females; 144 roosters) was evaluated when submitted to the following treatments (T): T1 = feeding at 6:30 a.m. (control); T2 = 50% feeding at 6:30 a.m. and 50% at 3:30 p.m. (dual feeding); T3 = feeding at 11:00 a.m.; and T4 = feeding at 3:30 p.m. Treatments were randomly distributed in 48 pens. There were 27 females and 3 males in each pen and 12 repetitions per treatment. Nutrition and management were as recommended for the commercial strain. It was evaluated age at first egg (AFE), total egg production (TEP), number of days with production above 80% (DAP80), laying peak (P), female mortality (MOR), and gross profit margin (GM) per hen. Data were submitted to analysis of variance and means were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler breeders; Economic evaluation; Feeding time; Performance. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000300007 Performance of steers supplemented with mineral mixtures in the State ofMato Grosso 2 Oliveira, Euclides Reuter de; Universidade Federal da Grande Dourados; Paiva, Paulo César de Aguiar; Universidade Federal de Lavras; Babilônia, José Libêncio; Centro Federal de Educação Tecnológica de Mato Grosso; Gabriel, Andréa Maria de Araújo; Universidade Federal da Grande Dourados; Monção, Flávio Pinto; Universidade Estadual Paulista "Júlio de Mesquita Filho"; Nascimento, Felipe de Almeida; Universidade Federal da Grande Dourados. The present study evaluated the effects of supplements on the productive performance and economical parameters of beef steers on pastures during the dry season. Twenty-four castrated steers with average age and weight of eighteen months and 269 kg, respectively, were evaluated in the following treatments: pasture without minerals (P); pasture and mineral salt (PMS) and pasture and mineral salt plus urea (PMSU). The chemical composition showed low contents of crude protein and high values of neutral and acid detergent fiber for forages sampled in the form of complete collection compared with the grazing simulation technique. The supplementation with mineral salt plus urea led to a higher average daily gain (p < 0.05) than the animals on pasture... Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.00.00-2 cattle; Economic evaluation; Production; Urea. Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22499 Poultry by-product meal as dietary protein source for dourado, Salminus brasiliensis: an economic appraisal 63 Donadelli,Renan Antunes; Aguilar,Fredy Armando Aguilar; Sonoda,Daniel Yokoyama; Cyrino,José Eurico Possebon. ABSTRACT: The dourado, Salminus brasiliensis, a large, carnivorous, Neotropical, Characin, is highly regarded for fish farming and sport fishing alike. However, studies on the farming and husbandry of dourado are still scarce. This study evaluated the performance of dourado fed diets formulated so as to contain increasing levels of poultry by-product meal as a replacement for fish meal and aimed to identify the maximum level of replacement to maximize profit. The trial was set up in a closed recirculation system with controlled water quality (temperature 27 °C, dissolved oxygen 6.5 mg L−1, pH 7.4, and ammonia 0.25 mg L−1). Juvenile fish were stocked in tanks in a completely randomized design, acclimatized to system conditions and experimental diets, and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish nutrition; Alternative feedstuffs; Economic evaluation. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001300190 Registros recuperados: 24 Primeira ... 1 2 ... Última

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