|
|
|
Registros recuperados: 24 | |
|
| |
|
|
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 |
| |
|
| |
|
| |
|
| |
|
|
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 |
| |
|
|
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 |
| |
|
|
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 |
| |
|
|
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 |
| |
|
| |
|
|
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 |
| |
|
|
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 |
| |
|
|
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 |
| |
|
| |
|
|
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 |
| |
|
| |
|
|
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 |
| |
|
|
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 |
| |
|
| |
|
|
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 | |
|
|
|