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| Registros recuperados: 439 | |
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| ARRUDA,Janaína de Cássia Braga; FONSECA,Lívia Anália Bentes da; PINTO,Leonardo César Portal; PINHEIRO,Higor César de Oliveira; MONTEIRO,Brenda Thamara Oliveira; MANNO,Maria Cristina; LIMA,Kedson Raul de Souza; LIMA,Ana Rita de. |
| ABSTRACT The aim of this study was to analyze the potential use of açaí seeds as an alternative ingredient in the feed of slow-growth broilers until 28 days of age. We carried out a bromatological analysis of fractions of the açaí fruit. The açaí seed without mesocarp was the best choice for formulation of the açaí seed bran (ASB), which was evaluated in terms of bird performance and economic viability of the supplemented feed. A total of 416 male chicks of the French Red-Naked Neck lineage were used in a completely randomized design with four treatments (0, 2, 6 and 10% inclusion of ASBin the feed) with eight replicates each. The results indicated that ASB can be included in proportions of up to 10% in the diet of slow growth broilers at early development... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative feed; Chicken; Agroindustrial residue; Sustainability; Euterpe oleraceae. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000400298 |
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| Magedans,Yve Verônica da Silva; Rodrigues-Corrêa,Kelly Cristine da Silva; Costa,Cibele Tesser da; Matsuura,Hélio Nitta; Fett-Neto,Arthur Germano. |
| ABSTRACT Psychotria is the largest genus in Rubiaceae. South American species of the genus are promising sources of natural products, mostly due to bioactive monoterpene indole alkaloids they accumulate. These alkaloids can have analgesic, antimutagenic, and antioxidant activities in different experimental models, among other pharmacological properties of interest. Propagation of genotypes with relevant pharmaceutical interest is important for obtaining natural products in a sustainable and standardized fashion. Besides the clonal propagation of elite individuals, the alkaloid content of Psychotria spp. can also be increased by applying moderate stressors or stress-signaling molecules. This review explores advances in research on methods for plant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abiotic stress; Alkaloids; Elicitation; Monoterpenes; Plant propagation; Psychotria; Southern Brazil; Sustainability. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000400607 |
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| Costella, Eduardo; Universidade Federal do Pampa; Garcia, Bruno Alves; Universidade Federal do Pampa; Costa, Leonardo Severo da; Universidade Federal do Pampa; Corneleo, Nathana da Silva; Universidade Federal do Pampa; Schünemann, Adriano Luis; Universidade Federal do Pampa; Stefenon, Valdir Marcos; Universidade Federal do Pampa. |
| Como efeito do crescimentop demográfico, muitas cidades no Sul do Brasil experimentaram, na última década, um processo de degradação de áreas de preservação ambiental. O planejamento de programas de recuperação de florestas depende de conhecimento estruturado sobre a utilização de espécies vegetais pelas comunidades locais. Entrevistas semi-estruturadas e inventários fitossociológicos foram empregados para acessar o efeito do uso antropogênico de espécies arbóreas de matas de galeria em áreas do Pampa brasileiro. Oitenta e quatro informantes foram entrevistados e listaram um total de 43 espécies, pertencentes a 23 famílias botânicas. Quatro categorias de uso foram identificadas para as espécies citadas: lenha, medicamento, alimento e madeira. As três... |
| Tipo: Entrevista semi-estruturada; inventário florestal |
Palavras-chave: Ethnobotany; Forest conservation; Traditional knowledge Botany Biologia ethnobotany; Sustainability; Traditional knowledge Botânica. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/13458 |
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| Andrea, M. C. S.; Tieppo, R. C.; Gimenez, L. M.; Povh, F. P.; Katsman, T. J.; Romanelli, T. L.. |
| Energy flow analysis is an interesting approach to assess and to improve sustainability of agricultural production systems, represented by the economy of energy resources and other inputs translated into energy terms. This type of analysis can complement the economic view contributing to more efficient production systems. Moreover, assessing crops with traditional food use may play an important role in energy provision. Energy efficiency tools were applied in order to determine the energy demand as well as the efficiency of the biomass production of several forage crops in mechanized systems conducted at Paraná state, Brazil. Material flow, input and output energy, energy balance, energy return over investment and embodied energy were used and identified... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioenergy; Energy indicators; Sustainability; Embodied energy. |
| Ano: 2014 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2916 |
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| Mantoam, Edemilson J; Mekonnen, Mesfin M; Romanelli, Thiago Libório. |
| The intensification of agricultural production systems demand power, supplied by agricultural machinery, besides more agricultural inputs such as fertilizer, pesticides and seeds. Agricultural mechanization provided increase in the global production of food, fiber and bioenergy; and it brought economic benefits to producers, but causing larger energy consumption. Energy embodiment in agricultural machinery has been approached, but data usually are from car industry. This study aimed to determine the energy demand in a plant that assembles five types of agricultural machinery from a multinational manufacturer located in Piracicaba municipality in Sao Paulo state, Brazil. That plant assembles two types of sugarcane harvester, coffee harvesters, sprayers and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural engineering mechanization; Industrial process; Life cycle assessment; Energy balance; Sustainability. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4831 |
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| Santos, Otávio Neto Almeida; Folegatti, Marcos Vinícius; Lena, Bruno Patias; Diotto, Adriano Valentim; Francisco, João Paulo; Romanelli, Thiago Libório. |
| Jatropha (Jatropha curcas L.) is an oil seed species, adaptive to different climate and soil conditions. It is known due to its high-oil-content seed, being an option for biodiesel production and presenting competitive yields under irrigated condition. This study was developed in an experimental area located in a humid subtropical region of Brazil and the objective was to evaluate Jatropha’s energy balance under irrigation and rainfed condition during the first four years of its cycle. First, the material flows were determined, which supported the calculation of, energy input and output flows were obtained. These were used to determine the energy indices: energy balance (EB), and energy return on investment (EROI) for both conditions. Fertilizers had the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biofuel; Energy efficiency; Sustainability; Energy flow. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4597 |
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| Costa-Neto,Eraldo M.. |
| Animals have been used as medicinal resources for the treatment and relieve of a myriad of illnesses and diseases in practically every human culture. Although considered by many as superstition, the pertinence of traditional medicine based on animals cannot be denied since they have been methodically tested by pharmaceutical companies as sources of drugs to the modern medical science. The phenomenon of zootherapy represents a strong evidence of the medicinal use of animal resources. Indeed, drug companies and agribusiness firms have been evaluating animals for decades without paying anything to the countries from where these genetic resources are found. The use of animals' body parts as folk medicines is relevant because it implies additional pressure over... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ethnozoology; Zootherapy; Bioprospection; Sustainability. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652005000100004 |
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| POERSCH,LUÍS H.; MILACH,ÂNGELA M.; CAVALLI,RONALDO O.; WASIELESKY,WILSON JR.; MÖLLER,OSMAR; CASTELLO,JORGE P.. |
| Ecological modeling has been used as a tool to estimate potential impacts caused by aquaculture to the surrounding environment. In this work, a mathematical model was applied to estimate the maximum amount of pink shrimp (Farfantepenaeus paulensis) culture units (3,100m2 pen enclosures) that could be installed at two shallow estuarine bays of Patos Lagoon (known as Coreia and Porto do Rei) with no significant effects on either water quality or viability of the culture system. To calibrate the model, information about the culture of Litopenaeus vannamei and F. paulensis as well as field data (influence of netting material, water current speed and nitrogen concentrations) were used. Under a bad scenario (water current velocity of 0.01m s–1 and a mesh... |
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Palavras-chave: Nitrogen; Pen shrimp culture; Sustainability; Ecological modeling; Coastal management. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301063 |
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| RODRIGUES,CARLA K.; LOPES,EDUARDO S.; SILVA,DIMAS A.; FIGUEIREDO FILHO,AFONSO; PELISSARI,ALLAN L.. |
| Abstract: Biomass is an important component of the Brazilian energy matrix, with a potential contribution of co-products from thinned forests. The aim of this work was to evaluate the energy balance and CO2 potential emission in mechanized biomass harvesting operations in Pinus taeda stands at 9 and 10 years-old and under thinning, searching to support the use of co-product biomass from thinning as a renewable energy source. Thinning was carried out through cut-to-length harvesting method, in which large logs for sawmill and small logs for energy were produced. In addition, tops, needles, barks, and branches were considered as co-products. The balance between consumed energy and emitted CO2 by machines for thinning in relationship to the energy and CO2 in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biomass energy; Co-product forest biomass; Forest harvesting; Sustainability. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700861 |
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| Milanez,Bruno. |
| ABSTRACT In this article, I argue that attempting to solve real problems is a possible approach to bring social and natural sciences together, and suggest that - as Environmental Impact Assessment necessarily brings together social and environmental issues - this debate is a strong candidate for such a task. The argument is based on a general discussion about the possibilities and limitations of Environmental Impact Assessments, the social-environmental impacts of mining activities and three case studies. The analysis of the cases indicates possibilities and limitations of the dialogue between scientists from various areas - and of the collaboration with social movements and affected communities - in avoiding negative impacts of mining projects and,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Interdisciplinary; Sustainability; Social-environmental conflicts; Mining. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000502335 |
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| Henry-Silva,G.G.; Maia,C.S.P.; Moura,R.S.T.; Bessa Junior,A.P.; Valenti,W.C.. |
| The aim of this study was to assess the feasibility of integrated multi-trophic culture of Nile tilapia (Oreochromis niloticus) and Amazon River prawn (Macrobrachium amazonicum) in brackish water by evaluating its limnological characteristics and economic performance. The experiment was completely randomized with four treatments and four repetitions: control treatment with Nile tilapia only, stocked with 2 tilapias/m² (P2C0) and three integrated multi-trophic culture treatments stocked with 2 tilapias/m² and prawns at densities of 4, 8 and 16 prawns/m² (P2C04, P2C08 and P2C16, respectively). The limnological variables of temperature, pH, dissolved oxygen, turbidity, ammonia, orthophosphate and chlorophyll "a" were evaluated and throughout the experiment... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquaculture; Sustainability; Polyculture. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000100265 |
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| Souza,A.L.M.; Guimarães,J.T.; Brigida,A.I.S.; Luiz,D.B.; Franco,R.M.; Mesquita,E.F.M.. |
| ABSTRACT The high consumption of water and uncontrolled wastewater generation commonly seen in fish processing plants are a matter of concern. Sustainable actions must be taken to addres this issue. The present study aimed to quantify the water used in the processing of Atlantic Salmon (Salmo salar) and Dolphinfish (Coryphaena hippurus) in a fish warehouse in Rio de Janeiro, Brazil, through water balance and mass balance at each development stage. According to the data obtained, the warehouse showed higher total water use, both in general (7,173.28±265.77m3/month), with most water use intended for processing support activities, approximately 45.00% (3,186.82±407.57m3/month); specifically, in the processing of the selected raw materials, with greater... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish processing; Water resources; Sustainability. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000401240 |
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| Ferreira,Enderson Petrônio de Brito; Wendland,Adriane; Didonet,Agostinho Dirceu. |
| Aiming to evaluate the effects of soil management and cover crops on microbial indicators of soil quality, an experiment was carried out under field conditions in which common bean and corn were cropped under no-tillage (NT) and conventional tillage (CT) after sunnhemp, velvet bean, pigeon pea, jack bean, sorghum and fallow (weeds). The basal soil respiration (BSR), C and N of the microbial biomass (Cmic and Nmic), metabolic quotient (qCO2), total enzymatic activity (TEA), β-glycosidase (β-GA) activity and acid phosphatase activity (APA) were evaluated in samples collected in 0-0.10 m depth. Cmic, qCO2, TEA, β-GA and APA were more sensitive in determining the effects caused by tillage and cover crops. Although the cover crops had not provided a remarkably... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Green manure; Cover crops; Soil quality; Sustainability. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052011000400024 |
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| Santos,Rodrigo Fernandes dos; Marques,Léo Omar Duarte; Mello-Farias,Paulo; Martins,Carlos Roberto; Konzen,Luis Henrique; Carvalho,Ivan Ricardo; Malgarim,Marcelo Barbosa. |
| ABSTRACT Kiwifruit vines are an alternative approach to diversify Brazilian fruit farming because of the low supply and increase in the demand for their fruits. Hydrogenated cyanamide, which is the most common rest-breaking agent, is highly toxic and its use is not allowed in organic production systems. This study aimed at evaluating the efficiency of alternative rest-breaking agents in kiwifruit vines by using the biological method of single node cutting. Twigs of the cultivar Bruno were collected in an organic orchard in Pelotas, a city located in Rio Grande do Sul state, Brazil. Seven-centimeter-long cuts with a single shoot at the ends were segmented. Cuttings were placed on plastic trays with phenolic foam and soaked in water, at 85% relative humidity... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Actinidia deliciosa; Sustainability; Ecophysiology; Adaptation; Mild winter. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020005004201 |
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| Registros recuperados: 439 | |
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