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| Registros recuperados: 359 | |
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| Andrade, José Weselli de Sá; CEFET-Centro Federal de Educação Tecnológica de Rio Verde-GO; Farias Junior, Max; Universidade Federal de Goiás-UFG; Sousa, Marliana Araújo de; CEFET - Centro Federal de Educação Tecnológica de Rio Verde-GO; Rocha, Anísio Corrêa; CEFET-Centro Federal de Educação Tecnólogica de Rio Verde-GO. |
| O presente projeto foi desenvolvido na Faculdade de Engenharia – Unesp, Campus de Ilha Solteira, no município de Ilha Solteira, Estado de São Paulo. Estudou-se o comportamento do ambiente em duas condições de ambiente protegido, com cobertura plástica do solo e em solo nu. Avaliaram-se as médias, por quinquídio, dos valores médios, máximos e mínimos diários de temperatura e umidade relativa do ar. As médias, por quinquídio, dos: valores médios diários de déficit de saturação de vapor d’água; dos totais diários de densidade de fluxo de radiação; das transmitâncias à radiação, em cada abrigo e as regressões lineares para estimativa dos totais diários de radiação no interior dos abrigos, em função do total diário de radiação em campo aberto. O ambiente... |
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Palavras-chave: Ciências Agrárias; Agronomia Polietileno; Ambiência; Microclima Ciências Agrárias; Agronomia Polyethylene; Environment; Microclimatic. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/2784 |
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| Gopinger, Edenilse; Avila, Valdir Silveira de; Perondi, Dani; Catalan, Aiane Aparecida da Silva; Krabbe, Everton Luis; Roll, Victor Fernando Büttow. |
| The effect of stocking density in broiler chickens (11.08 and 13.20 birds m-2), between 5 and 45 days of age, was assessed with regard to performance, cut yield, litter moisture and frequency of pododermatitis injuries. Further, 476 one-day chicks Cobb 500® were distributed in a completely randomized design at two densities (birds m-²), with seven replications per treatment in 14 experimental units. Birds housed at a lower density (11.08) increased feed intake (p < 0.05), without any effect on weight gain and feed conversion. Retail yields were not influenced (p > 0.05) by treatments. In the case of higher density (3.20)the litter showed higher moisture content (p < 0.05) at 28 and 35 days of age. There was a higher occurrence of pododermatitis in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chickens; Feed intake; Stocking; Environment; Pododermatitis; Welfare. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24732 |
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| Silva, Érica Carla Lopes da; UFRPE; Modesto, Elisa Cristina; UFRPE; Azevedo, Marcílio de; UFRPE; Ferreira, Marcelo de Andrade; UFRPE; Dubeux Junior, José Carlos Batista; UFRPE; Schuler, Alexandre Ricardo Pereira; UFPE. |
| O trabalho teve como objetivo avaliar a produção, composição e o perfil de ácidos graxos do leite, parâmetros fisiológicos e atividades comportamentais de vacas da raça Pitangueiras, submetidas à condição de pastejo com e sem acesso à sombra. O ambiente foi monitorado diariamente em uma estação meteorológica. O delineamento experimental foi o inteiramente casualizado, sendo que 20 vacas em lactação foram divididas em piquetes nos tratamentos com e sem acesso à sombra. Não houve diferença (p > 0,05) entre os tratamentos quanto às variáveis fisiológicas, produção, composição e perfil de ácidos graxos do leite. Os animais com acesso à sombra buscaram o sombrite nos horários em que os índices de conforto térmico foram mais elevados. No turno da tarde os... |
| Tipo: Pesquisa de campo;análise laboratorial |
Palavras-chave: Ácidos graxos; Comportamento; Estresse térmico; Fatores ambientais; Temperatura retal ciências agrárias acids fatty; Behavior; Environment; Heat stress; Shading; Dairy cows. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/5279 |
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| Andreazzi, Márcia Aparecida; Gasparotto, Francielli; Paccola, Edneia Aparecida de Souza; Silva, Cleiltan Novais da; Rodrigues, Aparecida de Fatima Cracco; Lizama, Maria de los Angeles Perez. |
| Achatina fulica, known as Giant African Snail (GAS), was introduced in Brazil as a substitute for the European escargot, Helix aspersa maxima. However, its cultivation was abandoned and the mollusk became an invasive species, found throughout Brazil and causing damage to health and the environment. In this context, this study analyzed the knowledge of the population about the damage caused by GAS, seeking to reveal a regional scenario on this issue. This exploratory and cross-sectional study was conducted by means of a questionnaire applied to 150 people, which obtained sociodemographic characteristics of respondents and specific responses about the knowledge and handling of GAS. The results showed that most of the respondents know the snail and are... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mollusk; Introduced species; Environment; Social study.. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/35569 |
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| Vasconcelos, Huann Carllo Gentil; Tavares-Dias, Marcos. |
| Host-parasite interactions between crustaceans and six fish species (Psectrogaster falcata, Ageneiosus ucayalensis, Acestrorhynchus falcirostris, Hemiodus unimaculatus, Serrasalmus gibbus and Geophagus proximus) from a reservoir in eastern Amazon, northern Brazil, were investigated. Eight hundred and seventy-eight parasites belonging to three crustacean species, Excorallana berbicensis, Argulus chicomendesi and Ergasilus turucuyus, which parasitized the hosts’ mouth, gills and tegument, were collected from 295 fish and examined. High infestation levels were caused by E. berbicensis on the body surface of the hosts. Excorallana berbicensis showed aggregate dispersion, except in S. gibbus, while E. turucuyus showed random dispersion in A. falcirostris. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body condition; Ectoparasites; Environment; Freshwater fish; Infestation. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/29601 |
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| Lai, H.T.L.; Aarnink, A.J.A.; Cambra-López, M.; Huynh, T.T.T.; Parmentier, H.K.; Groot Koerkamp, P.W.G.. |
| The concentration and size distribution of airborne particles were measured inside and outside typical animal houses such as broilers, broiler breeders (both floor housing with litter); layers (floor housing system and aviary housing system); turkeys (floor housing with litter), pigs: fattening pigs (traditional houses, low emission houses with dry feed, and low emission houses with wet feed), piglets, sows (individual and group housing); cattle (cubicle house), and mink (cages). Using an aerosol spectrometer, particles were counted and classified into 30 size classes (total range: 0.25 – 32 µm). Particles were measured on for two days, one in spring and the other in summer, in two of each species/housing combination during 30 min inside and outside the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Livestock; Environment; Dust; Particle size distribution animal houses CMD MMD temperature relative humidity. |
| Ano: 2014 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2465 |
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| Kymäläinen, Hanna-Riitta; Kuisma, Risto. |
| Microbiological dipslides are widely used e.g. in food production facilities for HACCP (hazard analysis & critical control points) measurements and hygiene monitoring surveys, as well as for other cleanability studies. In this study the suitability of microbiological dipslide methods to measure the hygiene level of the environmental surfaces in a cattle barn was tested. A total of 1112 measurements were carried out during five measurement days. When evaluating the rooms by combining the results of the individual sampling sites and different dipslide types (total microbes, enterobacteria and β-glucuronidase-positive organisms, yeasts and moulds), the corridor and personnel rooms had the highest hygiene status. The office and personnel kitchen and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cattle; Barn; Environment; Surface; Hygiene; Measurement. |
| Ano: 2014 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2682 |
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| H.T.L. Lai; Wageningen UR Livestock Research; A.J.A. Aarnink; Wageningen UR Livestock Research, Wageningen, the Netherlands; M. Cambra-López; Institute of Animal Science and Technology Universidad Politécnica de Valencia, Spain; T.T.T. Huynh; Nong Lam University, Ho Chi Minh City, Vietnam; H.K. Parmentier; Adaptation Physiology Group, Wageningen University, Wageningen, the Netherlands; P.W.G. Groot Koerkamp; Farm Technology Group, Wageningen University, Wageningen, the Netherlands. |
| The concentration and size distribution of airborne particles were measured inside and outside typical animal houses such as broilers, broiler breeders (both floor housing with litter); layers (floor housing system and aviary housing system); turkeys (floor housing with litter), pigs: fattening pigs (traditional houses, low emission houses with dry feed, and low emission houses with wet feed), piglets, sows (individual and group housing); cattle (cubicle house), and mink (cages). Using an aerosol spectrometer, particles were counted and classified into 30 size classes (total range: 0.25 – 32 µm). Particles were measured on for two days, one in spring and the other in summer, in two of each species/housing combination during 30 min inside and outside the... |
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Palavras-chave: Livestock; Environment; Dust; Particle size distribution animal houses CMD MMD temperature relative humidity. |
| Ano: 2014 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2465 |
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| Mattei,Antonella S.; Madrid,Isabel M.; Santin,Rosema; Silva,Franklin V.; Carapeto,Luiz P.; Meireles,Mário C.A.. |
| This study describes the isolation of S. schenckii in hospital and home environments in Brazil. Samples were collected from surfaces of a veterinary service place and at home. S. schenckii was detected in 1.5% of the samples from the hospital environment. However, this fungus was isolated from all sampled areas in home environments. The isolation of S. schenckii deonstrates that these surfaces could act as infection sources to anials and huans. Therefore, employees and pet owners could be exposed to this agent, and the contamination, through surfaces, could occur through the traumatic inoculation of the fungus or by direct contact with pre-existing lesions. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environment; Disinfection; Sporothrix schenckii; Surface. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400022 |
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| COSTA,BÁRBARA N.S.; COSTA,IRTON J.S.; SOUZA,GENAINA A. DE; SANTOS,DALILHIA N. DOS; SILVEIRA,FLÁVIA A. DA; MELO,EVALDO T. DE; MARTINS,ADALVAN D.; PASQUAL,MOACIR; SETOTAW,TESFAHUN A.; RODRIGUES,FILIPE A.. |
| Abstract The jelly palm plant [Butia capitata (Martius) Beccari] is a native palm of the Cerrado biome used for many purposes in northern Minas Gerais State, Brazil. Dormancy is common in palm seeds, resulting in slow and uneven germination that may take years to complete. Modification in the growth pattern, anatomical parameters, physiological and biochemical characteristics of the plant can be verified due to changes in the light spectrum transmitted through colored shade nets used. Therefore, the objective of this study is to evaluate the effect of colored shade nets on the leaf and root anatomy of the jelly palm plant. The experiment was performed in a completely randomized design, with five treatments, ten replicates and eight plants per replicate,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomy; Environment; Palms; Propagation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703615 |
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| PEREIRA,CLÁUDIA A.F.; MAIA,LUIZ F.O.; FARIA,MÁRCIA C.S.; FIDÊNCIO,PAULO H.; BOMFETI,CLEIDE A.; BARBOSA JUNIOR,FERNANDO; RODRIGUES,JAIRO L.. |
| Abstract In aquatic habitats, metal contamination from natural and anthropogenic sources continues to pose a concern for human and environmental health. Thus, it is important to complete monitoring studies to assess patterns and the extent of metal contamination in these ecosystems. The purpose of this work was to determine the concentrations of 31 chemical elements and water quality parameters of the Todos os Santos River located in the Mucuri Valley, Minas Gerais, Brazil. A multivariate statistical analysis was used to determine any seasonal and spatial patterns from the data. Results demonstrated that metals including Al, Fe, and Ni exceeded Brazilian and international guidelines nutrients as P also exceed water quality standards. Principal components... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Toxic pollutants; Metals; Water quality; Environment. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602701 |
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| Gonçalves,V.P.; Marin,J.M.. |
| To determine the fate of Shiga toxigenic Escherichia coli (STEC) non-O 157 in composted manure from naturally colonized cattle, fresh manure was obtained from three cows carrying non-O157 STEC strains possessing the stx2 gene. Two composting systems were used: a 0.6m deep cave opened in the soil and an one meter high solid manure heap in a pyramidal architecture. Every day, for the 10 first days, and every five days for a month, one manure sample from three different points in both systems was collected and cultured to determine the presence of E. coli and the presence of the stx 2 gene in the cells. The temperature was verified at each sampling. STEC non-O157 E. coli cells survived for 8, 25 and 30 days at 42, 40 and 38ºC, respectively, in the deep cave... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial reduction; Manure; STEC; Environment; Composting system. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000400001 |
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| Marin,J.M.; Maluta,R.P.; Borges,C.A.; Beraldo,L.G.; Maesta,S.A.; Lemos,M.V.F.; Ruiz,U.S.; Ávila,F.A.; Rigobelo,E.C.. |
| Livestock manure may contain pathogenic microorganisms which pose a risk to the health of animal or humans if the manure is not adequately treated or disposed of. To determine the fate of Shiga toxigenic Escherichia coli (STEC) non O157 in composted manure from naturally colonized sheep, fresh manure was obtained from animals carrying bacterial cells with stx1/ stx2 genes. Two composting systems were used, aerated and non-aerated, and the experiments were done in Dracena city, São Paulo State. Every week, for seven weeks, one manure sample from six different points in both systems was collected and cultured to determine the presence of E. coli, the presence of the virulence genes in the cells, and also the susceptibility to 10 antimicrobial drugs. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial elimination; VTEC; Environment; Compost; Virulence gene. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000601771 |
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| Freites,Luis Felipe; Guevara,Miguel; Márquez,Adrián; Revilla,Jormil; Narváez,Mariela; Lodeiros,César. |
| ABSTRACT We studied the influence of environmental variables associated with three water depths (2, 6 and 10 m) on shell growth, soft tissues dry mass (STDM) and survival of the Caribbean winged oyster Pteria colymbus (Roding, 1798). chlorophyll-a (Chl-a), dissolved oxygen, particulate organic matter (POM) and temperature were studied at each depth. Oysters were placed in 135 plastic baskets with five individuals in each basket. Three baskets at each depth were chosen at monthly intervals for measurements of biometric parameters, biofouling, and survival. At the end of the study, dry mass of the individuals grown at 10 m was significantly lower (Kruskal-Wallis non-parametric test KW, P < 0.05) with the highest values of STDM corresponding to oysters... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biofouling; Environment; Depth; Oyster; Survival. |
| Ano: 2020 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000100009 |
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| Guiraud,Deborah Maria Corrêa; Lenzi,Ervim; Luchese,Eduardo Bernardi; Fávero,Luzia Otília Bortotti. |
| Influence of some environmental variables in the loss of macronutrients N, P, K, from the hydrographic basin of the River Ivaí were analysed. Water samples of the river were monthly collected for five consecutive days during a year. In terms of total intervals of average monthly values and total average values experiment results, in mg L-1, were: N (0.32-3.22 and 1.65); K (0.73-2.69 and 1.38); P (not detected-0.39 and 0.076); COD (0.21-36.0 and 12.8); O2(dis) (1.89-8.40 and 5.43); and temperature (ºC) (16.0-30.8 and 24.6); pH (5.18-8.50 and 7.15). Statistical analysis of data showed that quantity of macronutrient (N, K, P) carried off from the hydrographic basin of the River Ivaí were directly correlated to fluviometric levels (caused by rainfall... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Erosion; Macronutrients; Hydrographic basin; Environment. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000400019 |
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| Silva,Jardel Eugenio da; Urbanetz Junior,Jair. |
| Abstract The electric vehicle (EV) is not a recent invention. Between the end of the XIX century and the beginning of the XX century, most motor vehicles were electric, due to their superior reliability and cleanliness, compared to that of vehicles driven by internal combustion engines (ICE). However, with the development of ICEs and the reduction of their price, electric cars were forgotten. Only almost a century later, they returned in the market due to a significant increase in fossil fuels prices, as well as to a growing environmental concern. EVs present a number of advantages over ICE vehicles: they are simpler and require less use and replacement of parts, resulting in lower maintenance costs; moreover, they do not release pollutants into the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Electric vehicles; Photovoltaic panels; Environment. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000200206 |
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| Registros recuperados: 359 | |
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