oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 160 )

2018 ( 317 )

2017 ( 333 )

2016 ( 359 )

Custom range...

Search Results: 1 - 10 of 184424 matches for " Wilkson de Oliveira;Freitas "
All listed articles are free for downloading (OA Articles)
Page 1 /184424
Display every page Item
Níveis de Proteína Bruta para Leitoas dos 30 aos 60 kg Mantidas em Ambiente de Conforto Térmico (21oC)
Orlando, Uislei Antonio Dias;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Ferreira, Aloízio Soares;Resende, Wilkson de Oliveira;Freitas, Letícia Silva de;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000700014
Abstract: this experiment was conducted to evaluate levels of crude protein (cp) for gilts in growing phase, maintained under thermal comfort. the internal temperature at room was kept during the experimental period in 21.3 ± 0.53°c with relative humidity of 70.5 ± 5.11%. the calculated black globe humidity index (bghi) in this period was 68.7 ± 0.93. forty crossbred gilts with average initial weight of 29.4 ± 1.42 kg were used in an experimental design of randomized blocks with five treatments (16, 17, 18, 19 e 20% de cp), four replicates and two animals per experimental unit. the experimental isoenergetics rations with 3,400 kcal of de/kg, were formulated to meet the requirements of animals, except to cp. the rations and water were feeding ad libitum to animals, until the final of experimental period when gilts reached the average weight of 60.6 ± 1.76 kg. the cp level of ration influenced the average daily weight gain (adwg) that increases and the feed:gain (f:g) ratio that improved linearly. in spite of linear effect of cp levels on adwg and f:g ratio the model of "linear response plateau" (lrp) was one that better adjusted to the data estimating respectively in 18.78 and 19.15% the levels of cp occurred a plateau. the daily intakes of protein and lysine increase linearly with crescent level of cp on ration. however it did not observe effect of cp levels on daily intakes of ration and digestible energy. it was concluded that gilts from 30 to 60 kg kept under thermoneutral environment require 19.15% of cp on ration associated with the intakes of 343 e 19.08 g/day of crude protein and lysine, respectively for better performance.
Preventable infant mortality: Spatial distribution and main causes in three Brazilian municipalities  [PDF]
Rosana Rosseto de Oliveira, Thais Aidar de Freitas Mathias
Health (Health) , 2013, DOI: 10.4236/health.2013.510209
Abstract:

Objective: The objective was to identify spatial distribution patterns for preventable infant mortality and the main causes of death in three municipalities of Paraná state, Brazil. Design and Sample: Ecological study on infant mortality among residents of the municipalities of Maringá, Sarandi and Pai?andu, between 2004 and 2008. Measures: Data were obtained from reports by the Infant Mortality Prevention Committee, georeferenced in 19 Demographic Expansion Areas and analyzed statistically using Local Moran’s Index. Results: Of the 284 deaths among children under one year of age, 68.7% were considered preventable, and higher percentages were found in outlying areas. The main causes were illnesses originated during the perinatal period (73.8%), external causes (11.3%) and diseases of the respiratory system (5.1%). Conclusion: It is necessary to implement actions and policies on child and prenatal assistance, in order to reduce the inequality observed between the central and outlying areas of the region under study.

Níveis de lisina digestível em ra??es, em que se manteve ou n?o a rela??o aminoacídica, para frangos de corte de 22 a 42 dias de idade, mantidos em estresse por calor
Valério, Sandra Roseli;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Gomes, Paulo Cezar;Apol?nio, Lourdes Rom?o;Resende, Wilkson de Oliveira;
Revista Brasileira de Zootecnia , 2003, DOI: 10.1590/S1516-35982003000200016
Abstract: two trials were conduced to determinate the requirement of digestible lysine of broilers from 22 to 42 days, feeding diets maintaining or not the relationship of amino acids, kept under heat stress. a completely randomized experimental design was used in both trials. in trial 1, the broilers were allotted in five treatments (lysine levels in conventional diets) and six replicates with seven broilers in each. in trial 2, the broilers were allotted in four treatments (diets with different lysine levels, maintaining the relationship of amino acids) and six replicates with seven broilers in each. in both trials, the treatments improved in a linear way the weight gain and feed:gain ratio. however, although the feed:gain ratio had been improved by linear way, the lrp model better adjusted to the data, estimating in 0.92 and 1.022% the level of lysine where occurred a plateau, when it was used the conventional diet and it was considered the relationship of amino acids. there was no effect of treatments on feed intake and on relative and absolute weight of broiler's carcass when the relationship of amino acid was maintained or not. the lysine levels increased linearly the absolute weight and yield of breast of broilers, independent of maintained or not the profile of the amino acid. in the trial 1, the absolute and relative weights of thigh and drumstick were not influenced by treatments. the absolute and relative weights of abdominal fat were reduced in a linear way by lysine levels. in the trial 2, the absolute weight of thigh increased linearly with lysine levels of diet. there was no effect of the treatments on absolute and relative weights of drumstick and abdominal fat. it was concluded that male broilers, in the period from 22 to 42 days of age, kept under heat stress require at least 0.955 and 1.022% of digestible lysine in the conventional diet and in the diet maintaining the amino acid profile, respectively.
Níveis de lisina digestível em ra??es para frangos de corte de 22 a 42 dias de idade, mantidos em ambiente de termoneutralidade
Lana, Sandra Roselí Valerio;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Gomes, Paulo Cézar;Vaz, Roberta Gomes Mar?al Vieira;Rezende, Wilkson de Oliveira;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000500024
Abstract: two trials were conducted to evaluate the effects of increasing dietary digestible lysine levels, maintaining or not the amino acid relation, on performance of broilers from 22 to 42 days old on thermoneutral environment. two hundred and ten male broilers (averaging initial weight of 662.5 g) and 168 broilers (averaging initial weight of 623.7 g) were assigned to a completely randomized experimental design in trials 1 and 2, respectively. in trial 1, the broilers were allotted to five treatments (digestible lysine levels in conventional diets) and six replicates of seven broilers. in trial 2, the broilers were allotted to four treatments (digestible lysine levels in diet maintaining amino acid relation) and six replicates of seven broilers. in both trials, linear effect of digestible lysine levels on body weight gain and feed:gain ratio were observed. in trial 1, the increasing dietary digestible lysine levels increased linearly absolute carcass weight. there was no effect of lysine levels on relative carcass weights and on absolute and relative weichts of abdominal fat. in trial 2, absolute and relative breast and thigh weights increased linearly, while the absolute drumstick data increased quadraticly up to 0.955% digestible lysine level. no treatment effects on relative drumstick weight and absolute and relative weights of abdominal fat was observed. it was concluded that male broilers, avian farms, in the period from 22 to 42 days old, require at least 1.015 and 1.075% digestible lysine in conventional diet or in a diet maintaining the amino acid relation, respectively. this corresponds to an intake of 28 g digestible lysine for birds on a thermoneutral environment.
Níveis de lisina digestível em ra??es para frangos de corte de 1 a 21 dias de idade mantidos em ambiente de termoneutralidade
Lana, Sandra Roselí Valerio;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Albino, Luiz Fernando Teixeira;Vaz, Roberta Gomes Mar?al Vieira;Rezende, Wilkson de Oliveira;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000500023
Abstract: two trials were conducted to evaluate the requirements of increasing dietary digestible lysine levels, maintaining or not the amino acids relation, for broilers from 1 to 21 days old, on thermoneutral environment. a complete randomized experimental design was used in both trials. in trial 1, broilers were allotted to five treatments (0.92, 0.98, 1.04, 1.10, and 1.16% digestible lysine levels, conventional diet), with eight replicates of ten birds. in trial 2, chicks were allotted to four treatments (1.04, 1.10, 1.16, and 1.22% of digestible lysine, in diets maintaining amino acid relation) with eight replicates of ten birds. in trial 1, effects of dietary lysine levels on body weight gain and feed intake, both increasing quadraticly up to 1.13 and 1.11% digestible lysine, respectively, were observed. there was significant treatment effect on feed:gain ratio, that decreased quadraticly up to 1.14% digestible lysine. absolute carcass weight increased quadractily while relative carcass values and absolute weight of gizzard increased linearly with treatments. relative weights of heart and intestines decreased linearly with the treatments. in trial 2, body weight gain also increased linearly with treatments, the lrp model better adjusted to data, where the 1.17% digestible lysine level was estimated. no effects of treatments on feed intake and feed:gain ratio were detected. absolute carcass weight was linearly affected by the increasing dietary lysine levels. there was no effect of dietary lysine levels on absolute and relative weights of all evaluated organs. it was concluded that avian farms male broilers, in the period from 1 to 21 days, require at least 1.14 and 1.17% digestible lysine, in a conventional diet or of a diet maintaining the amino acid relation, respectively, on a thermoneutral environment.
Evidências genético-arqueológicas sobre a origem do feij?o comum no Brasil
Freitas, Fábio de Oliveira;
Pesquisa Agropecuária Brasileira , 2006, DOI: 10.1590/S0100-204X2006000700018
Abstract: this work discusses the origin of common bean, phaseolus vulgaris l. modern and archaeological samples were genetically analyzed, using sequences of phaseolin (phs). the archaeological sample was found in a cave in northern minas gerais state. our results showed that this sample is close to those found in northern south america and mexico, indicating cultural influences in the past, between those regions and minas gerais. besides, there must have been a single domestication event, probably between northern south america and mexico.
Exigências de aminoácidos sulfurados digestíveis para suínos machos castrados, mantidos em ambiente de alta temperatura dos 15 aos 30 kg
Vaz, Roberta Gomes Mar?al Vieira;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Ferreira, Aloízio Soares;Silva, Francisco Carlos de Oliveira;Kiefer, Charles;Siqueira, Jefferson Costa de;Rezende, Wilkson de Oliveira;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000500025
Abstract: sixty swine (landrace x large white) with initial weight of 14.97 ± 0.33 kg and 50.36 ± 3.29 days old were allotted to a blocks randomized experimental design, with five treatments (0.465, 0.511, 0.558, 0.605, and 0.652% digestible methionine + and cystine)and six replicates of two animals, to determine the sulphurous amino acids requirements for barrows on a high temperature environment from 15 to 30 kg. diets and water were fed ad libitum until the end of the experimental period, when the animals reached the weight of 29.87 ± 0.52 kg. the average temperature inside the room was maintained in 30.9 ± 0.7oc and the relative humidity in 67.5 ± 7.2%. the black globe humidity index calculated in the period was 81.2 ± 1.2. linear increasing effect of dietary digestible methionine + cystine levels on daily weight gain and linear decreasing effect on feed:gain ratio were observed. no effects of treatments on daily feed intake were observed. quadratic effect of treatments on fat deposition rate, that decreased by 0.508%, and increasing linear effect on protein deposition rate were observed. it was concluded that the dietary digestible sulphurous amino acids requirement for barrows on a high temperature environment from 15 to 30 kg is of 0.558% digestible methionine + cystine, that corresponds to 60% digestible methionine and cystine:digestible lysine ratio.
Níveis de energia metabolizável mantendo a rela??o lisina digestível: caloria em ra??es para suínos machos castrados em termina??o
Rezende, Wilkson Oliveira;Donzele, Juarez Lopes;Oliveira, Rita Flávia Miranda de;Abreu, Márvio Lob?o Teixeira de;Ferreira, Aloízio Soares;Silva, Francisco Carlos de Oliveira;Apol?nio, Lourdes Rom?o;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000400022
Abstract: forty barrows from commercial hybrids averaging initial weight of 60.1 ± 1.3 kg were used in a trial to evaluate different me levels, maintaining the digestible lysine:calorie ratio, on the performance and carcass characteristics. a randomized block experimental design with four treatments, five replicate and two animals per experimental unit was used. the treatments consisted of four me levels (3,100, 3,230, 3,370, and 3,500 kcal/kg) with 2.41 g of digestible lysine/mcal of em ratio. animals were fed until the end of the experimental period, when the animals reached 95.46 ± 2.89 kg. it was observed linear effect of treatments on feed intake. feed:gain ratio increased linearly as the me levels increased. there was no treatment effect on energy efficiency, weight gain, carcass yield, backfat thickness and lean meat yield. it was concluded that increasing me levels (3,100 to 3,500 kcal/kg, maintaining the dietary digestible lysine:calorie ratio of barrows, increase feed:gain ratio and decrease feed intake with no effect on weight gain and carcass characteristics.
Redu??o da proteína bruta da ra??o e suplementa??o de aminoácidos para suínos machos castrados dos 15 aos 30 kg mantidos em ambiente de alta temperatura
Ferreira, Rony Antonio;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Araújo, Cláudio Vieira de;Silva, Francisco Carlos de Oliveira;Vaz, Roberta Gomes Mar?al Vieira;Rezende, Wilkson Oliveira;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000400016
Abstract: a trial was conducted to evaluate the effect of reduced cp, amino acid-supplemented diets on performance of castrated males swines on high environmental temperature (32oc). a total of sixty crossbred piglets (landrace x large white) averaging initial weight of 15.2 kg was allotted to completely randomized experimental design with five treatments (18, 17, 16, 15, and 14% of cp), six replications and two animals per experimental unit. the experimental diets were fed to swine ad libitum until the end of the experiment, when the animals averaged 29.9 kg. the average temperature in the room was maintained in 32.3oc, with relative humidity of 75.9%, corresponding a black globe-humidity index (bghi) of 82.6. the reduced cp level, amino acid-supplemented-based diets did not affect the evaluated parameters (feed intake, weight gain and feed:gain ratio). no treatment effect on digestible lysine and energy intakes was observed. gradual reduction on daily nitrogen intake was observed. decreasing dietary cp levels affected only fat deposition rate. the highest values of relative and absolute weights of liver and stomach and the relative weight of kidneys were observed in the animals fed diets with the highest dietary cp level. it was concluded that the dietary cp level can be reduced from 18 to 14% for castrated piglets from 15 to 30 kg on high environmental temperature, with no effect on performance, since diets are supplemented with the essential amino acids.
Weight loss of five commercially available denture teeth after toothbrushing with three different dentifrices
Freitas, Karina Matthes de;Paranhos, Helena de Freitas Oliveira;
Journal of Applied Oral Science , 2006, DOI: 10.1590/S1678-77572006000400006
Abstract: brushing is the most common cleansing method employed on complete dentures and it may damage the integrity of acrylic resin, the main component of this type of prosthesis. this study evaluated the abrasion resistance of artificial teeth with different number of acrylic layers, and the abrasiveness of specific and non-specific dentifrices for denture cleaning. the abrasion test was conducted by a tooth brushing device, using soft toothbrushes under load (200g). sixty artificial teeth specimens were manufactured, 12 from each brand: vipi-dent plus (dental vipi), trubyte biotone (dentsply), trilux (ruthinium), ivostar (ivoclar) and sr vivodent pe (ivoclar). three brands of dentifrices were selected: colgate (colgate-palmolive), bonyplus (bonyf ag) and dentu-creme (dentco). distilled water was used as control. the brushing time was 100 minutes, at 356 strokes/minute. the specimens were weighed on an analytical balance before and after the abrasion test. analysis of dentifrices' abrasive particles was made by scanning electron microscopy (sem). two-way anova and tukey tests were employed (a=0.05). the general mean of weight loss values were obtained: 6.1 mg (ivostar); 6.0 mg (trilux); 5.9 mg (trubyte); 5.8 mg (vipi); 5.3 mg (vivodent). the abrasiveness difference among teeth brands was not statistically significant. the colgate dentifrice produced the greatest weight reduction (10.1 mg), followed by dentu-creme (7.6 mg). bonyplus was the least abrasive (2.4 mg), similar to the distilled water used as control group (3.1 mg) (p=0.05). it was concluded that all acrylic teeth presented similar abrasion resistance. specific dentifrices for dentures tend to cause less damage to acrylic resin.
Page 1 /184424
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.