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Search Results: 1 - 10 of 183344 matches for " Dalton de Oliveira;Saraiva "
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Available phosphorus in diets for 15 to 30 kg pigs genetically selected for meat deposition
Arouca, Cláudio Luiz Corrêa;Silva, Francisco Carlos de Oliveira;Fontes, Dalton de Oliveira;Saraiva, Alysson;Donzele, Juarez Lopes;Silva, Martinho de Almeida e;Paula, Eriane de;
Revista Brasileira de Zootecnia , 2012, DOI: 10.1590/S1516-35982012000100010
Abstract: with the objective to evaluate the effect of dietary available phosphorus levels (ap) on the performance, blood and bone parameters of castrated male and female pigs, genetically selected for meat deposition, 60 commercial hybrids pigs with initial weight of 15.54±0.68 kg were allotted in a completely randomized block design, with six treatments (0.103, 0.210, 0.317, 0.424, 0.531, and 0.638% ap), five replicates, and two animals per experimental unit. pigs were fed ad libitum and water was provided until the end of the experimental period (21 days), when animals reached 31.31±2.94 kg. daily weight gain and daily feed intake increased, while the feed conversion improved quadratically up to 0.534, 0.487, and 0.574% ap maximum responses, respectively. the ap intake and the values of inorganic phosphorus in serum increased linearly with increasing the levels of ap in the diets. alkaline phosphatase activity increased quadratically up to 0.558% maximum response. bone breaking strength and calcium, phosphorus, and ash contents in the bones increased linearly with increasing ap concentration in the diets. the available phosphorus requirement of castrated male and female pigs genetically selected for meat deposition from 15 to 30 kg for best results of performance is 0.574%, corresponding to a daily intake of 8.26 g of available phosphorus.
Redu??o do nível de proteína bruta e suplementa??o de aminoácidos em ra??es para suínos machos castrados mantidos em ambiente termoneutro dos 30 aos 60 kg
Ferreira, Rony Antonio;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Araújo, Claudio Vieira de;Silva, Francisco Carlos de Oliveira;Fontes, Dalton de Oliveira;Saraiva, Edilson Paes;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000200024
Abstract: an study was conducted to evaluate the influence of reduction of crude protein (cp) levels and amino acid supplementation in diets on the performance of castrated swines (landracex large white) maintained in a termoneutral environment. fifty crossbreed piglets (average initial body weight of 30.2 kg) were allotted to a completely randomized experimental design with five treatments (17, 16, 15, 14 and 13% cp) and five replications and two animals per experimental unit. experimental diets and water were fed ad libitum up to the end of the experiment, when the animals reached the average weight of 60.2 kg. temperature in the room was kept at 22.0oc and the relative humidity at 82.8%, corresponding to a black globe-humidity index (bghi) of 69.2. reduction of dietary cp level affected body weight gain (wg) of the animals, those animals fed diet with 17% cp showed smaller wg than the animals fed diet with 15 and 14% cp. feed intake (fi) and feed:gain ratio were not affected by treatments. reduction of cp level increased the protein and fat deposition in the carcass and reduced the total nitrogen excretion. the level of crude protein of diet to castrated swines from 30 to 60 kg maintained in a termoneutral environment could be reduced from 17 to 13% with no effect on performance, since diets are supplemented with essential limitant amino acids.
Controle da malária transfusional em regi?o endêmica e n?o endêmica do Brasil
Sáez-Alquézar, Amadeo;Ramos, Ana Maria S. do Val;Di Santi, Silvia M.;Branquinho, Maria Stela;Kirchgatter, Karin;Cordeiro, Ingrid A.C.;Murta, Marcia;Saraiva, Jo?o C.P.;Oliveira, Salma Gomes de;Bochetti, Maria Gabriella Gioelli;Pirolla, José Antonio;Guerzoni, Dalton;Chamone, Dalton A.F.;
Revista da Sociedade Brasileira de Medicina Tropical , 1998, DOI: 10.1590/S0037-86821998000100004
Abstract: the aim of the present work was to establish appropriate criteria for screening of donor blood from regions with distinct malaria epidemiological characteristics. three locations with different screening criteria were studied: s?o paulo, sp (with no vectorial transmission), belém, pa (with low active transmission) and matupá and peixoto de azevedo, mt (with high active transmission). the malaria parasite ? plasmodium sp ? was searched for by "thick film", qbc test( and antigen immunofluorescence test, and was not detected in any of the samples. there was, however, a great variation in the positivity of anti-plasmodial antibodies, as determined by iif-igg anti-p. vivax and -p. falciparum, between accepted donors in the 3 studied locations and between rejected and accepted donors in s?o paulo (1.98% accepted, 22.3% rejected - p < 0.01) and belém (17.2% accepted, 58.3% rejected - p < 0.01). these data endorse the use of the applied clinical and epidemiological screening. in matupá and peixoto de azevedo, where there was no rejected donor, the serological positivity was 80.6%. we, therefore, consider that the malaria screening in blood banks should follow clinical and epidemiological criteria suitable to each region. the laboratorial screening techniques should then detect either the parasites (thick film/ qbc test? or the parasite antigens.
Self-Referencing Method for Relative Color Intensity Analysis Using Mobile-Phone  [PDF]
Wellington S. Souza, Marcos A. S. de Oliveira, Gabrielli M. F. de Oliveira, Dalton P. de Santana, Renato E. de Araujo
Optics and Photonics Journal (OPJ) , 2018, DOI: 10.4236/opj.2018.87022
Abstract: Mobile-phones have been widely explored on colorimetric evaluations. However, their use with different built-in image systems and acquisition configuration, in an environment with non-controlled illumination, limits the establishment of an accurate color analysis. To overcome this restriction, the determination of the absolute color of an object can be overlooked and a relative color value determined. In this work, we establish a new approach for spectroscopic evaluation based on cell-phone imaging, with no previous calibration, determining relative color values. The standalone relative color intensity method is evaluated under the use of four distinct mobile-phones and different illumination conditions. The capability to distinguish different color shades exploring the proposed self-referenced relative color intensity technique is appraised. Moreover, the potential use of the method is demonstrated by evaluating the chemical-adsorption process of Cysteamine molecules on gold nanoparticle surfaces. The proposed self-referenced technique can improve and expand the use of mobile-phones in spectroscopic applications.
Three replacement names for species of the subfamily Leiinae (Diptera, Mycetophilidae)
Oliveira, Sarah Siqueira de;Amorim, Dalton de Souza;
Revista Brasileira de Entomologia , 2010, DOI: 10.1590/S0085-56262010000200019
Abstract: new names are proposed for three cases of homonymy in the mycetophilidae subfamily leiinae, one in the genus docosia winnerz, one in leia meigen, and one in tetragoneura winnertz. docosia garretti nom. nov. is proposed for docosia setosa garrett, 1925; leia walkeri nom. nov. for leia bimaculata (walker, 1848); and tetragoneura sasakawai nom. nov. for tetragoneura tibialis sasakawa, 1961. the context of each new name is discussed.
Pabrício Marcos Oliveira Lopes,Dalton de Morisson Valeriano
Revista Geográfica Acadêmica , 2009,
Abstract: This work evaluates the Mountain Climate Simulator (MTCLIM) in the extrapolation of minimum and maximum daily air temperatures in the region of the Serra of Mantiqueira, Brazil, using data from DCP (Automatic Data Collection Platform) in different sky conditions in the year of 2003. Comparison between simulated results and data of DCP were conducted though linear regression analysis. Data from DCP localized in city from Queluz in S o Paulo were used to extrapolation minimum and maximum daily air temperature in 271 points of the sierra. The results obtained to locations with the same altitude showed that the model overestimated maximum daily (Tx) and underestimated minimum (Tn) independent of sky conditions. The locations different elevations and clear skies, the model estimated the Tx with good agreement and an error of 1.4°C. With the inclusion of cloud cover, the model improved the estimate of Tx, but the error increased to 1.7°C. The presence of clouds reduced the spatial distribution of maximum monthly in the mountain. The absence of clouds caused decrease in the minimum monthly. The model can be applied to station at the same altitude. The regime monthly of temperature presents similar regime to the regional seasonal variability.
Níveis dietéticos de lisina para suínos da ra?a Landrace dos 15 aos 30 kg
Moretto, Valéria;Donzele, Juarez Lopes;Oliveira, Rita Flávia Miranda de;Fontes, Dalton de Oliveira;
Revista Brasileira de Zootecnia , 2000, DOI: 10.1590/S1516-35982000000300023
Abstract: two experiments were carried out to determine the total lysine requirement of purebred landrace swine, males and females, from 15 to 30 kg live weights. fifty females and fifty males were used in a randomized complete block design, with five treatments, five replications and two animals per experimental unit, in the experiments i and ii, respectively. the treatments consisted of a basal diet, supplemented with five levels of l-lysine.hcl, resulting in diets with .85, .95, 1.05, 1.15, 1.25% of total lysine in both experiments. in experiment i, the dietary lysine levels did not influence the average daily feed intake. the average daily gain, daily lysine intake and protein deposition rates in the carcass linearly increased with the lysine level. the treatments quadractily influenced the feed:gain ratio, which improved up to 1.08% lysine level. in the experiment ii, lysine level did not influence the average daily feed intake and the feed:gain ratio. there was a quadratic effect of dietary lysine level on average daily gain, average daily lysine intake and protein deposition rate in the carcass. the best results of average weight gain were obtained with the level of 1.08% lysine. the total lysine requirement, for the starting growing phase (15 to 30 kg), was estimated to be 1.08%, for both sexes.
Níveis de lisina para leitoas selecionadas geneticamente para deposi o de carne magra, dos 60 aos 95 kg
Fontes Dalton de Oliveira,Donzele Juarez Lopes,Ferreira Aloisio Soares,Oliveira Rita Flávia Miranda de
Revista Brasileira de Zootecnia , 2000,
Abstract: Foram utilizadas 50 leitoas mesti as (Hampshire, Landrace Belga, Pietran) com peso inicial médio de 60,23±0,49 kg e alto potencial genético para deposi o de carne magra na carca a, para avaliar diferentes níveis de lisina. Foi usado delineamento de blocos ao acaso com cinco tratamentos, cinco repeti es e dois animais por unidade experimental. Os tratamentos corresponderam a uma ra o basal com 15,8% de proteína bruta, suplementada com cinco níveis de L-lisina HCl, resultando em ra es com 0,75; 0,85; 0,95; 1,05; e 1,15% de lisina. N o se observou efeito dos tratamentos sobre consumo de ra o e ganho de peso diário, entretanto, o consumo de lisina diário elevou-se de forma linear com o aumento do nível de lisina da ra o. Houve efeito quadrático dos níveis de lisina sobre a convers o alimentar e o teor de uréia no soro sangüíneo, que reduziram até o nível de 1,00% de lisina ou 0,302% /Mcal de ED, o que correspondeu a um consumo estimado de lisina de 23,90 g/dia. N o se observou efeito dos tratamentos sobre a porcentagem de água e proteína e taxa de deposi o de proteína na carca a, entretanto, a porcentagem e a taxa de deposi o de gordura diminuíram de maneira linear. Concluiu-se que leitoas com alto potencial genético para deposi o de carne magra, dos 60 aos 95 kg de peso vivo, requerem 1,00% de lisina (0,302%/Mcal de ED) e 0,90% (0,272%/Mcal de ED) de lisina digestível verdadeira, para máximo desempenho, o que corresponde a consumo diário de lisina total e digestível de 23,9 e 21,5 g, respectivamente.
Níveis dietéticos de lisina para suínos da ra a Landrace dos 15 aos 30 kg
Moretto Valéria,Donzele Juarez Lopes,Oliveira Rita Flávia Miranda de,Fontes Dalton de Oliveira
Revista Brasileira de Zootecnia , 2000,
Abstract: Com o objetivo de determinar a exigência nutricional de lisina total para suínos da ra a Landrace, machos inteiros e fêmeas, de 15 a 30 kg de peso, foram conduzidos dois experimentos. Utilizaram-se 50 fêmeas no experimento I e 50 machos inteiros no experimento II, em delineamento em blocos casualizados, com cinco tratamentos, cinco repeti es e dois animais por unidade experimental, em cada experimento. Os tratamentos consistiram de uma ra o basal suplementada com cinco níveis de L-lisina.HCl, resultando em ra es com 0,85; 0,95; 1,05; 1,15; e 1,25% de lisina, em ambos os experimentos. No experimento I, o consumo de ra o médio diário n o foi influenciado pelo nível de lisina das ra es. Ganho de peso médio diário, consumo de lisina médio diário e taxa de deposi o de proteína na carca a aumentaram de forma linear com o nível de lisina da ra o. Os tratamentos influenciaram de forma quadrática a convers o alimentar, que melhorou até o nível de 1,08% de lisina. No experimento II, os tratamentos n o influenciaram o consumo de ra o médio diário e a convers o alimentar. Constatou-se efeito quadrático dos níveis de lisina sobre ganho de peso médio diário, consumo de lisina médio diário e taxa de deposi o de proteína na carca a. Os melhores resultados de ganho de peso foram observados no nível de 1,08% de lisina. A exigência de lisina total na ra o, para a fase inicial de desenvolvimento (15 a 30 kg), foi de 1,08%, para ambos os sexos.
Uso de simuladores, imagens e anima??es como ferramentas auxiliares no ensino/aprendizagem de óptica
Heckler, Valmir;Saraiva, Maria de Fátima Oliveira;Oliveira Filho, Kepler de Souza;
Revista Brasileira de Ensino de Física , 2007, DOI: 10.1590/S0102-47442007000200011
Abstract: in this article we report the development and use of a cd of optics for high-school teaching, covering all topics for this level. the material contains didactic texts in html language, 77 animations and 64 images generated by ourselves, as well as 13 simulators (java applets) available in the internet. we comment about the application and reception of the hypermedia by a group of 40 high school seniors.
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