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Search Results: 1 - 10 of 23664 matches for " Vitor Pereira;Queiroz "
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Influence of intraruminal infusion of propionic acid and forage to concentrate levels on intake, digestibility and rumen characteristics in young bulls
Ribeiro, Marinaldo Divino;Pereira, José Carlos;Queiroz, Augusto César de;Bettero, Vitor Pereira;Mantovani, Hilário Cuquetto;Silva, Cássio José da;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009000500023
Abstract: this study aimed to evaluate the effect of intraruminal infusion of propionic acid (rpa) associated to two (80:20 and 60:40) forage:concentrate ratios (fcr), for young bulls. four holstein × zebu crossbred young bulls with average age of 7 months and 160 kg of body weight (bw) were distributed to a 4 × 4 latin square design. a total mixed ration, isonitrogenous diets, was ad libitum fed to animals. the propionic acid was obtained by fermentation of reconstituted milk whey by the consortium of bacteria enterococcus sp. and veillonella sp.. daily and along with the supply of solid feeds, 2 l of the compound containing propionic acid were intrainfused in the rumen. there was no rpa × fcr interaction for the intake of nutrients, except for total digestible nutrients (tdn). the organic matter (om), crude protein (cp), ether extract (ee), neutral detergent fiber (ndf) and tdn intakes were influenced by the fcr. there was no rpa × fcr interaction on the total digestibility of dm, om, cp, ee, ndf and tc. however, the digestibility of dm, om, ee and ct were influenced by the fcr. there was no rpa × fcr interaction for the mean n-nh3 concentration and ph of the rumen fluid; however, rpa provided effect on the ph measured 4 hours after meal. there was no interaction or effect of the main factors on volatile fatty acids concentrations in the rumen fluid, or on glucose levels and serum urea nitrogen.
Níveis de concentrado na dieta de bezerros
Ribeiro, Marinaldo Divino;Pereira, José Carlos;Bettero, Vitor Pereira;Queiroz, Augusto César de;Costa, Marcone Geraldo;Leonel, Fernando de Paula;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009000600022
Abstract: the objective of this study was to evaluate the levels of concentrate for growing calves. four holstein × brahman crossbred calves with average age of 7 months and 155 kg of body weight were used, distributed into one latin square design (4 × 4). the animals were fed ad libtum in the form of complete diet containing levels of 20, 40, 60 and 80% of concentrate on the dry matter basis (dm). the diets were composed of cynodon dactylon hay, corn, soybean meal and mineral mixture, and were isoprotein (15.4%). the dm, organic matter (om), neutral detergent fiber (ndf) and total carbohydrate (tc) consumption showed linear response; and crude protein (cp) and total digestible nutrients (tdn), quadratic response; expressed in kg/day. when expressed in %bw, the om, cp, ee and tdn consumption presented quadratic behavior; as dm, ndf and tc showed linear behavior. the apparent total digestibility dm and cp coefficients were quadratic influenced by the levels of concentrate, while om, ee, ndf and tc showed linear behavior. no effect was observed for the average concentration of ammoniac nitrogen, depending on the levels of concentrate, for each time of analysis. however, for ph, there was influence of the levels for the times analyzed. likewise, no effect was observed for the average concentration of serum glucose, however, for urea nitrogen serum (uns), a linear negative effect was observed, depending on the levels for each post-feeding time. therefore, up to 60% of concentrate could be included in the diet of calves; however higher levels can affect the use of bulky.
Severidade da antracnose e perda de matéria fresca de frutos de dez procedências de maracujázeiro-doce (Passiflora alata Dryander) em dois ambientes de armazenamento
Junqueira, Nilton Tadeu Vilela;Anselmo, Rodrigo Marquez;Pinto, Alberto Carlos de Queiroz;Ramos, Victor Hugo Vargas;Pereira, Ailton Vitor;Nascimento, Alessandra Carneiro do;
Revista Brasileira de Fruticultura , 2003, DOI: 10.1590/S0100-29452003000100021
Abstract: sweet passion fruit (passiflora alata dryander) from ten different sources were evaluated for the severity of anthracnose (colletotrichum gloeosporioides penz.) and their fresh weight losses when stored in two environmental conditions: cold storage (5oc and 90% r.h.) and room temperature (23±1oc and 65±5% r.h.). seed plants were established from ten sources proceeding from the central of food supply of s?o paulo state - ceagesp (sources a, b e c), vi?osa-mg (source d), tomé-a?u-pa (source e), itacoatiara-am (source f), ouro preto d'oeste-ro (source g), domingos martins-es (source h), pontes e lacerda-mt (source i), rondonópolis-mt (source j) and stem cuttings were collected from the best plants to produce the asexual matrix plants. unriped fruits produced in distrito federal, brazil, were harvested from plants obtained by stem-rooted cuttings. all origins were collected in wild conditions, except a, b, c and e sources. fruit evaluations were done by determining their weight fresh matter after 0, 3, 6, 9 and 12 days after harvesting, whereas the anthracnose severity (% of fruit area with lesions) and incidence (% of infected fruits) of other diseases were evaluated after 12 days of storage. the anthracnose was less severe on fruits from sources i and g, however, this disease shown less severe attack when fruits were stored in cold conditions. after 12 days of storage at room temperature, the fruit sources g and a, had fresh matter losses of 16,68% and 17,86% while in cold storage the fresh matter losses were 7,71% and 6,61%, respectively. the percentage of fresh matter loss of g, a, e, j and f fruit sources was less in room temperature when compared with other sources. it was observed after 12 days at cold storage, that the fresh matter loss shown an average of 9,78%, which is approximately twice lower the storage at room temperature (22,06%).
Análise estrutural da cobertura pedológica: uma experiência de ensino e pesquisa
José Pereira Queiroz Neto
Revista do Departamento de Geografia , 2002, DOI: 10.7154/rdg.v0i15.64
Abstract: O acordo CAPES/COFECUB permitiu ao Departamento de Geografia desenvolver, entre 1980 e 1995, um programa de ensino epesquisa em pós-gradua o, com a participa o da école Nationale Supérieure Agronomique de Rennes, do Centre de GéomorphologieCNRS, de Caen e do Centre ORSTOM de Caiena, sob o tema “Análise estrutural da cobertura pedológica e suas aplica es nos ambientestropicais”. O programa compreendia uma parte teórica e outra prática, com levantamento e cartografia de coberturas pedológicas emdiferentes áreas de S o Paulo, Paraná, Santa Catarina e Minas Gerais. Com base nesses trabalhos foram elaboradas sete disserta es demestrado e 18 teses de doutorado: seus resultados científicos representam uma significativa contribui o ao conhecimento da pedogênesee da dinamica pedológica atual, relacionada à gênese e evolu o dos relevos e a quest es de uso dos solos. Os resultados s o sintetizadosem dois conjuntos temáticos: 1- sistemas pedológicos: gênese e dinamica; 2- funcionamento hídrico e eros o.
Sig na internet: exemplo de aplica o no ensino superior
Alfredo Pereira Queiroz Filho
Revista do Departamento de Geografia , 2002, DOI: 10.7154/rdg.v0i15.67
Abstract: Este trabalho relata o uso do software SpringWeb no curso de Introdu o à Cartografia, ministrado no primeiro semestre de 2002aos alunos do Departamento de Geografia da Universidade de S o Paulo, e aborda os principais aspectos da integra o de dados que lhe d osuporte. As possibilidades de trabalhar fora do horário e local de aula, associar os conceitos básicos de Cartografia e minimizar oinvestimento em software e hardware s o consideradas as principais vantagens dessa aplica o. As desvantagens mais relevantes sereferem ao heterogêneo conhecimento de informática dos alunos, à necessidade de uso de banda larga para acessar o exercício e àexigência de instala o – no primeiro acesso – de um plug-in (programa Java).
Floristic catalog and georeference of plant species with economic and ecological potential in a restinga of Mata de S o Jo o, Bahia, Brazil
Erivaldo Pereira Queiroz
Biotemas , 2007,
Abstract: This paper aims to register in cadastre the species with economic and ecological potential in 46ha of restinga ecosystem, in the municipality of Mata de S o Jo o, Bahia, Brazil. A total of 571 specimens, belonging to 109 species and 48 families, was georeferenced (including an additional 39 polygonal lines), and they will be preserved and used as parent plants.
HIERARQUIA URBANA NO SERT O CENTRAL CEARENSE
Alexandre Queiroz Pereira
Boletim Goiano de Geografia , 2012,
Abstract: A organiza o socioespacial propiciada pela área de influência de um conjunto integrado de cidades permite a divis o do território em regi es. No caso do sert o central cearense, é certo que, após a primeira metade do século XX, Quixadá entrara na hierarquia urbana como aglomera o articulada aos demais centros (principalmente Fortaleza) e polarizara um recorte regional. Partindo de uma revis o bibliográfica e documental, objetiva-se neste escrito o entendimento dessa hierarquia urbana intraestadual. Para tanto, optou-se por duasestratégias: primeiramente, descri o das políticas regionalizadoras e em seguida, análise de indicadores característicos do recorte regional atualmente polarizado por Quixadá.
Transmiss?o e obten??o de informa??o em saúde
Rodrigues,Vitor Manuel Costa Pereira;
Ciência & Saúde Coletiva , 2010, DOI: 10.1590/S1413-81232010000500038
Abstract: by identifying the resulting benefits of the application of a information program (constituted by pamphlets accompanied by verbal information), either in the change of the nurses behaviour to the transmission of information, or in the obtaining of the same by the patients, it was possible to develop a systematized knowledge that allowed to clarify the nurses role in the hospital internment, and that the specified in the letter of the rights and duties of the patient could be respected. the aims of this study are to identify how the application of an information program produces changes in the nurses' behaviour in transmitting the information, and to verify the effectiveness of the introduction of a information program regarding the information obtaining on the part of the patients. it was an experimental study and the populations that were in the base of this study were composed by patients interned in medicine services and surgery services and for nurses that exercise its profession in medicine services and in surgery services. we conclude that the share attitude of information is higher in nurses of the group submitted to an information program comparing to the ones who were not. similarly, patients of the group submitted to a information program obtained more information.
Geographic Concentration in Portugal and Regional Specific Factors
Vitor Joao Pereira Domingues Martinho
Quantitative Finance , 2011,
Abstract: This paper pretends to analyze the importance which the natural advantages and local resources are in the manufacturing industry location, in relation with the "spillovers" effects and industrial policies. To this, we estimate the Rybczynski equation matrix for the various manufacturing industries in Portugal, at regional level (NUTS II) and for the period 1980 to 1999. Estimations are displayed with the model mentioned and for four different periods, namely 1980 to 1985, from 1986 to 1994, from 1980 to 1994 and from 1995 to 1999. The consideration of the various periods until 1994, aims to capture the effects of our entrance at the, in that time, EEC (European Economic Community) and the consideration of a period from 1995 is because the change in methodology for compiling statistical data taken from this time in Portugal. As a summary conclusion, noted that the location of manufacturing in Portugal is still mostly explained by specific factors, with a tendency to increase in some cases the explanation by these factors, having the effect "spillovers" and industrial policies little importance in this context.
Spatial Effects and Convergence Theory in the Portuguese Situation
Vitor Joao Pereira Domingues Martinho
Quantitative Finance , 2011,
Abstract: This study analyses, through cross-section estimation methods, the influence of spatial effects and human capital in the conditional productivity convergence (product per worker) in the economic sectors of NUTs III of mainland Portugal between 1995 and 2002. To analyse the data, Moran's I statistics is considered, and it is stated that productivity is subject to positive spatial autocorrelation (productivity develops in a similar manner to productivity in neighbouring regions), above all, in agriculture and services. Industry and the total of all sectors present indications that they are subject to positive spatial autocorrelation in productivity. On the other hand, it is stated that the indications of convergence, specifically bearing in mind the concept of absolute convergence, are greater in industry. Taking into account the estimation results, it is stated once again that the indications of convergence are greater in industry, and it can be seen that spatial spillover effects, spatial lag (capturing spatial autocorrelation through a spatially redundant dependent variable) and spatial error (capturing spatial autocorrelation through a spatially redundant error term), as well as human capital, condition the convergence of productivity in the various economic sectors of Portuguese region in the period under consideration (Martinho, 2011).
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