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Registros recuperados: 15
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Additive containing homo and heterolactic bacteria on the fermentation quality of maize silage - doi: 10.4025/actascianimsci.v35i4.18833 Animal Sciences
Junges, Daniel; Universidade de São Paulo; Schmidt, Patrick; Universidade de São Paulo; Novinski, Charles Ortiz; Universidade Federal do Paraná; Daniel, João Luiz Pratti; Universidade de São Paulo.
This trial evaluated the addition of Lactobacillus plantarum, L. brevis and Enterococcus faecium combo additive against a control treatment. The silages were made in laboratory silos that were stored for 30, 60, 90 or 120 days before opening. We evaluated the chemical composition of the forage before and after ensiling and the fermentative losses of silages. The additive decreased (p < 0.01) effluent production (11.4 kg ton-1) compared to control silage (14.0 kg ton-1), but it increased (p < 0.01) the Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) from 45.6% and 24.5% to 47.0 and 25.1% for control and additive silages, respectively. The storage periods affected (p < 0.01) effluent production, Dry Matter Losses (DML), NDF,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 4.03.05.00-7; Zootecnia; Forragicultura silagem alimentação animal aerobic stability; Effluent gases; Lactobacillus brevis; Lactobacillus plantarum; Losses Aerobic stability; Effluent; Gases; Lactobacillus brevis; Lactobacillus Plantarum; Losses.
Ano: 2013 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/18833
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Annual production of grass silage for biogas: effects of fibrolytic enzyme additives on ensilage efficiency and specific methane yields CIGR Journal
Nolan, Pearl; Doyle, Evelyn; O'Kiley, Padraig.
The aims of this study were to quantify the effects of fibrolytic enzyme additives applied to each of four consecutive cuts of unwilted grass at ensiling on ensilage characteristics and specific CH4 yields (SMY) per unit mass and per unit land area. In light of the importance of the primary growth yield, the effects of the timing of Cut 1 were also investigated. Furthermore, the mass-SMY and area-SMY effect of any effluent produced during ensilage was determined.At each of four cuts that comprised annual growth, samples from four replicate plots of Lolium perenne and of Phleum pratense were untreated (control) or were treated with either of two fibrolytic enzymes (ENZ 1 and ENZ 2) prior to ensiling for 120 days. The mass-SMY of silages and effluents were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Grass yield; Silage; Fibre; Enzymes; Effluent; CH4 yield per unit land area.
Ano: 2018 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4159
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Biofilter efficiency of Eichhornia crassipes in wastewater treatment of fish farming in Amazonia: Eficiencia de Eichhornia crassipes como biofiltro en el tratamiento de aguas residuales de la piscicultura en el Amazonas Phyton
Rubim,MAL; Isolino Sampaio,PR; Parolin,P.
Fish is a very important part of the human diet in Amazonia. Near the growing cities, fish populations and individual size have decreased over the past decades. Alternatives to traditional and industrial fishing arise, including fish farming. Strategies to minimize the impact of fish farms on the environment are needed to have a regular and healthy fsh supply. This is to avoid a reduction of biodiversity, a depletion of natural resources, and/or the induction of significant changes in the structure and functioning of adjacent ecosystems. Very little research has been performed on management of efluents as to maintain the quality of water resources. The present study aimed at testing the efficiency of the Amazonian aquatic macrophyte Eichhornia crassipes as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquaculture; Amazon; Effluent; Fish farming; Biofilters; Aquatic macrophytes; Water hyacinth.
Ano: 2015 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572015000100031
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Derivation of supply curves for catchment water effluents meeting specific salinity concentration targets in 2050: linking farm and catchment level models or “Footprints on future salt / water planes” AgEcon
Nordblom, Thomas L.; Bathgate, Andrew D.; Young, Robert A..
The salt burden in a stream reflects the blend of salty and fresh flows from different soil areas in its catchment. Depending not only on long-run rainfall, water yields from a soil are also determined by land cover: lowest if the area is forested and greatest if cleared. Water yields under agro-forestry, lucerne pasture, perennial grass pasture, and annual pasture or cropping options span the range of water yields between the extremes of forested and cleared lands. This study explores quantitative approaches for connecting the hydrologic and economic consequences of farm-level decisions on land cover (productive land uses) to the costs of attaining different catchment level targets of water volumes and salt reaching downstream users; environmental,...
Tipo: Conference Paper or Presentation Palavras-chave: Salinity; Targets; Opportunity cost; Concentration; Dilution; Effluent; Externality; Supply; Demand; Policy; Water quality; New technology; New markets; Resource /Energy Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/57929
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Descriptif des stations d'épuration ayant un rejet à la mer. Proposition d'un système de contrôle définissant la qualité du milieu marin ArchiMer
Burgeot, Thierry; Fillon, Alain.
La surveillance et le suivi de la qualité du milieu est une des missions essentielles confiées au Laboratoire CSRU. Au Laboratoire de La Rochelle, le problème de l'assainissement et en particulier des rejets en mer, dans les zones conchylicoles des effluents des stations d'épuration fait l'objet, depuis plusieurs années, d'un contrôle régulier. Chaque contrôleur assure cette tâche par des prélèvements, effectués dans les différentes stations de leur circonscription.
Tipo: Text Palavras-chave: Station épuration; Rejet; Milieu marin; Effluent; Système contrôle.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/00149/26029/24130.pdf
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Development of a biologically based environmental quality standard from a long-term benthic monitoring programme in the North Sea ArchiMer
Brown, Ar; Shillabeer, N.
The paper describes the derivation and effectiveness of a benthic macrofauna environmental quality standard (EQS). The EQS is derived from a continuing, long-term (24 years) monitoring programme, designed to determine the effect of mining effluent discharged into coastal waters off the NE coast of England. The area under study is at the Cleveland Potash mine at Boulby. Benthic monitoring began there in 1970 and live years of baseline data were gathered before discharge commenced in 1974. During the course of the monitoring programme (1970-1993) annual surveys have been completed at the discharge point and at more distant reference sites. The complete data set includes results from over 1000 benthic grab samples. The effect of the discharge is clearly...
Tipo: Text Palavras-chave: Long-term; Monitoring; Benthos; Effluent; EQS.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00093/20454/18126.pdf
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Ecotoxicity assessment in aquaculture system using the test organism Pseudokirchneriella subcapitata (Chlorophyceae) - doi: 10.4025/actascibiolsci.v34i4.9391 Biological Sciences
Miashiro, Luciana; Instituto de Pesca; Lombardi, Julio Vicente; Instituto de Pesca; Mercante, Cacilda Thais Janson; Instituto de Pesca.
The purpose of this study is to perform toxicity tests with microalgae Pseudokirchneriella subcapitata (Chlorophyceae) using inland water samples to evaluate the impact caused by aquaculture. Six field samples were collected ranged November 2006 to March 2007, at Experimental Station, Pindamonhangaba, State of São Paulo. Abiotic factors pointed out to the mesotrophic and eutrophic characteristics already observed at the fish pond and its effluent. The results of ecotoxicological tests carried out with the microalgae Pseudokirchneriella subcapitata showed that the fish pond effluent was potential enough to stimulate the algal growth, therefore eutrophication, to the extent that it is naturally diluted to at least 12.5% of its initial concentration. This...
Palavras-chave: 2.10.07.00-4 Nile tilapia; Effluent; Eutrophication; Microalgae Toxicologia.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9391
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Effect of water exchange on effluent and sediment characteristics and on partial nitrogen budget in semi-intensive shrimp ponds in New Caledonia ArchiMer
Lemonnier, Hugues; Faninoz, Sebastien.
An experiment was conducted in six earthen ponds with 20 shrimps m(-2) Litopenaeus stylirostris (Stimpson) during the warm season in New Caledonia to study the dynamics of wastes in relation with water exchange rate (WER). The nitrogen budget was established, taking into account the different forms of nitrogen in the water, sediment, feed and shrimp. Data from a wide range of treatments applied in unreplicated ponds were treated using regression analysis to establish the relationship between WER and partial nitrogen budget, sediment characteristics and shrimp performance. To compare effluent quality between treatments during the season, data were analysed using the non-parametric sign test. The water outflow was characterized by a decrease in the...
Tipo: Text Palavras-chave: New Caledonia; Nitrogen; Water exchange; Shrimp; Sediment quality; Effluent.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1811.pdf
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Estado trófico e bioacumulação do fósforo total no cultivo de peixes em tanques-rede na área aqüícola do reservatório de Itaipu - DOI: 10.4025/actascibiolsci.v30i3.519 Biological Sciences
Bueno, Guilherme Wolff; Unioeste; Marengoni, Nilton Garcia; Unioeste- Marechal Cândido Rondon; Gonçalves Júnior, Affonso Celso; Unioeste- Marechal Cândido Rondon; Boscolo, Wilson Rogério; Unioeste- Toledo; Teixeira, Rodrigo de Almeida; UEPG- Ponta Grossa.
A intensa produção de peixes e uso dos recursos hídricos pode comprometer a qualidade e disponibilidade da água, além de afetar a capacidade de suporte do ambiente, causando eutrofização e conseqüentemente a poluição do mesmo. Realizou-se um estudo das variáveis físico-químicas da água e dos teores de fósforo total (P-total) no sedimento, rações e peixes cultivados em tanques-rede em uma área aqüícola localizada no reservatório da Itaipu, no município de Santa Helena – PR, objetivando monitorar a qualidade da água e determinar o índice de eutrofização total da área de cultivo, além de analisar a bioacumulação de P-total nos peixes e sedimento. As variáveis físico-químicas da água mantiveram valores normais indicados pelo CONAMA. A concentração média de...
Palavras-chave: 2.00.00.00-6 Ciências Biológicas Aqüicultura sustentável; Área aqüícola; Efluentes; Impacto ambiental; Limnologia. sustainable aquaculture; Aquaculture area; Effluent; Environment impact; Limnology.
Ano: 2008 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/519
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Guide méthodologique pour l'élaboration des dossiers de demande d'autorisation d'Installations Classées pour la Protection de l'Environnement (ICPE) en matière de pisciculture marine pour la région Corse ArchiMer
Roque D'Orbcastel, Emmanuelle; Sauzade, Didier; Ravoux, Georges; Coves, Denis.
Sea fish farms with production of more than 20 tons per year in France must obtain two operating licences: (i) one for Sea Farming (AECM), with the aim of ensuring that the granted site and use of the maritime public domain for exploitation will respect all restrictions of general interest; (ii) one for regulating Facilities Classified for the Protection of the Environment (ICPE). Although the first one requires a relatively simple licence request file, the second one demands a very complete file, which includes, beyond the notice of exploitation information, a complete impact study, as well as a hazards study and a health and safety notice. In this context, petitioners in Corsica (adjustment of status or new exploitation) are faced with the same...
Tipo: Text Palavras-chave: Specifications; Study of dangers; Effluent; Potential impact; Impact survey; Exploitation; Demand; Marine fish culture; Corsica; Classified installations for the environment protection (CIEP); Methodological guide; Cahier des charges; Etude de dangers; Rejets; Impacts potentiels; Etude d'impact; Exploitation; Demandeur; Pisciculture marine; Corse; Installations Classées pour la Protection de l'Environnement (ICPE); Guide méthodologique.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/rapport-2188.pdf
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Impact of dairy effluent management in the grey water footprint. Repositório Alice
PALHARES, J. C. P.; CHARLON, V.; HERRERO, M. A.; SALAZAR, F..
The aims of this study were to assess the grey water footprint in South America dairy systems and analyzed the impact of effluent characteristics and environmental legislation on water footprint value. Grey water footprint quantifies freshwater pollution by the amount of water needed to re-dilute polluted freshwater back to an accepted national threshold value. Water footprints were determined collecting primary data in 61 farms of Argentina (Buenos Aires and Santa Fe provinces) and 20 dairies in Chile. The study considerate total phosphorus in the effluent and the production system as a no-point source of pollution. Phosphorus effluent concentration varied from 0.005 kg m3 to 0.686 kg m3 between farms. Chile had the highest phosphorus concentrations and...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Effluent; No-point; Phosphorus.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1082636
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Losses and nutritional value of elephant grass silage with inclusion levels of cottonseed meal - doi: 10.4025/actascianimsci.v35i2.13736 Animal Sciences
Viana, Pablo Teixeira; Universidade Estadual do Sudoeste da Bahia; Teixeira, Fábio Andrade; Universidade Estadual do Sudoeste da Bahia; Pires, Aureliano José Vieira; Universidade Estadual do Sudoeste da Bahia; Carvalho, Gleidson Giordano Pinto de; Universidade Federal da Bahia; Figueiredo, Mauro Pereira de; Universidade Estadual do Sudoeste da Bahia; Santana Junior, Hermógenes Almeida de; Universidade Estadual do Sudoeste da Bahia.
The experiment was conducted to evaluate losses and nutritive value of elephant grass silage containing increasing levels of cottonseed meal. The experimental design was completely randomized, with five treatments: 0, 7, 14, 21 and 28% inclusion of cottonseed meal, and four replications. The material was chopped and packed in PVC silos and stored for 80 days. The pH and dry matter (DM), crude protein, lignin and ether extract of the silages increased linearly with the addition of cottonseed meal, while the levels of acid detergent insoluble nitrogen, neutral detergent fiber, acid detergent fiber, cellulose and hemicellulose decreased linearly. The addition of 28% cottonseed meal reduced the in situ disappearance of DM (48h) to values lower than those of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zootecnia; Forragicultura; Produção e Avaliação de Alimentos by-product; Effluent; Ensiling; Gossypium hirsutum.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/13736
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Mutagenicity and genotoxicity of suspended particulate matter in the Seine river estuary ArchiMer
Hubert, Francoise; Moisan, Karine; Munschy, Catherine; Tronczynski, Jacek.
Highly mutagenic compounds such as some PAHs have been identified in surface waters and sediments of the Seine river estuary. Suspended particulate matter (SPM) represents a dynamic medium that may contribute to the exposure of aquatic organisms to toxic compounds in the water column of the estuary. In order to investigate major sources of mutagenic contaminants along the estuary, water samples were taken at 25 in downstream of the outlet of an industrial wastewater-treatment plant (WWTP). SPM samples were analyzed for their genotoxicity with two short-term tests, the Salmonella typhimurium mutagenicity assay (TA98 + S9 mix) and the comet assay in the human HepG2 cell line. Sampling sites receiving effluents from a chemical dye industry and WWTP showed the...
Tipo: Text Palavras-chave: Ames test; Comet assay; Water pollution; Effluent; Suspended particulate matter; Seine estuary.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00072/18323/16013.pdf
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Open-air treatment of wastewater from land-based marine fish farms in extensive and intensive systems: current technology and future perspectives ArchiMer
Hussenot, Jerome; Lefebvre, Sébastien; Brossard, Nicolas.
Marine land-based fish farms located in coastal wetlands (salt-pond zones, lagoon banks, etc.), whether extensive or intensive, send farm effluents directly to the sea or after short periods of stocking in retention reservoirs. The aims of our investigation have been to compare the efficiency of current and potential water treatment procedures in open-air. Wastewater retention ponds in commercial farms (Atlantic coasts of France) are efficient in removing up to 1 metric ton of particulate material (dry weight) per hectare and per day (faeces and unconsumed feed), but are inefficient in reducing dissolved wastes, both organic (urea, amino acids, protein) and inorganic (total ammonia nitrogen, phosphates). Forthcoming outdoor technology to treat these forms...
Tipo: Text Palavras-chave: Traitement de l'eau; Effluent; Décantation; Sédimentation; Écumage; Microalgue; Huître; Water treatment; Effluent; Aquaculture; Sedimentation; Foam fractionation; Microalgae; Oyster.
Ano: 1998 URL: https://archimer.ifremer.fr/doc/1998/publication-873.pdf
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The Costs and Benefits of Effluent Management Compliance in the Waikato Region of New Zealand AgEcon
Gauntlett, William.
Dairy farming in the Waikato Region has contributed greatly to the reduction of water quality. Part of this is attributable to the issue of inappropriate disposal of dairy effluent. Regional authority data shows both costs and benefits of complying with effluent management regulations. Private costs result from system and management improvements, while private benefits are largely due to reduced fertiliser requirements. Decreases in the volume of 'non-compliant effluent', resulting from improved compliance, are used as an indicator to illustrate reduced environmental effects. The benefits of becoming compliant outweigh the costs for half the farms analysed. More incentives are required to promote compliance from the other farms although their environmental...
Tipo: Conference Paper or Presentation Palavras-chave: Dairy farming; Environment; Effluent; Compliance; Cost; Benefit..
Ano: 2009 URL: http://purl.umn.edu/48032
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