oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 34 )

2018 ( 53 )

2017 ( 43 )

2016 ( 42 )

Custom range...

Search Results: 1 - 10 of 30131 matches for " Paulo Borges;Freitas "
All listed articles are free for downloading (OA Articles)
Page 1 /30131
Display every page Item
Planos nutricionais com a utiliza??o de aminoácidos e fitase para frangos de corte mantendo o conceito de proteína ideal nas dietas
Gomide, Elisangela Minati;Rodrigues, Paulo Borges;Freitas, Rilke Tadeu Fonseca de;Fialho, Elias Tadeu;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000800009
Abstract: this study was carried out to evaluate the performance and characteristics of carcass of broiler chickens fed diets with reduced levels of cp, available p (ap) and ca, supplemented with phytase and amino acids. the growth phases evaluated were: phase1, 1 - 21 days old, phase 2, 22 - 42 days old. a completely randomized design was used, with the treatments constituted of five nutritional plans (np), with six replicates of 25 birds each. the nutritional plans were: np1 - basal ration (21.4% cp - phase 1) + basal ration (19.3% cp - phase 2); np2 = basal ration (phase 1) + ration with 18% cp (phase 2); np3 = basal ration (phase 1) + ration with 16% cp (phase 2); np4 = ration with 19% cp (phase 1) + ration with 16% cp (phase 2) and np5 = ration with 17% cp (phase 1) + ration with 16% cp (phase 2). except for basal ration, it was reduced the level of ap for 0.34% and 0.30% in the phases 1 an 2, respectively, and ca to 0.80 and 0.70% in the phases 1 and 2, respectively , and in theses diets were added 500 ftu of phytase/ kg of ration. the np4 and np5 affected the bird performance. the bird fed np2 and np3 showed performance similar to those which was fed np1, while birds that were fed pn4 and pn5 remained unchanged. the carcass and breast yield were not influenced by the nutritional plans. the birds fed basal diets in the two rearing phases (np1) showed higher yield of thigh + drumstick. there was increase of the abdominal fat when the birds were fed np3, 4 and 5. in conclusion, is possible to reduce the protein of the ration up to 16% in the phase 2, supplemented with phytase and amino acids, since the ration of the phase 1 be formulated with recommended nutritional levels.
Níveis de óleo e adi o de complexo enzimático na ra o de frangos de corte
Pucci Luiz Eduardo Avelar,Rodrigues Paulo Borges,Freitas Rilke Tadeu Fonseca de,Bertechini Antonio Gilberto
Revista Brasileira de Zootecnia , 2003,
Abstract: Dois experimentos foram conduzidos para avaliar o efeito da adi o de óleo de soja e de um complexo enzimático em ra es à base de milho e farelo de soja, sobre o desempenho de frangos de corte e a digestibilidade dos nutrientes. No experimento 1, foram utilizados 960 pintos de corte, n o sexados, os quais receberam os tratamentos em esquema fatorial 4 x 2 (quatro níveis de inclus o de óleo de soja: 0; 2,5; 5,0 e 7,5%, com ou sem adi o de um complexo enzimático contendo amilase, xilanase e protease), em quatro repeti es de 30 aves cada, no período de 1 a 21 dias de idade. Dos 22 aos 42 dias de idade, todas as aves receberam uma mesma ra o de crescimento, para avalia o de possível efeito residual dos tratamentos aplicados na fase inicial de cria o sobre a fase seguinte. Aos 21 dias de idade, 90 aves (três machos e duas fêmeas de cada unidade experimental) foram transferidas para uma sala de metabolismo (experimento 2), em que as aves receberam as mesmas ra es experimentais, para determina o dos valores energéticos e dos coeficientes de digestibilidade da matéria seca e do extrato etéreo. N o houve efeito da adi o do complexo enzimático, nem intera o dos níveis de óleo e suplementa o com enzimas sobre o desempenho das aves. O valor energético das ra es melhorou em 2,3% com a adi o de óleo, n o havendo efeito da adi o de enzimas. O nível de 2,33% de óleo permitiu máxima digestibilidade do extrato etéreo. Concluiu-se que a inclus o de óleo na ra o melhorou o desempenho das aves e a convers o alimentar permaneceu constante a partir de 2,18% de inclus o.
Nasal rhinosporidiosis: differential diagnosis of fungal sinusitis and inverted papilloma
Crosara, Paulo Fernando Tormin Borges,Becker, Celso Gon?alves,Freitas, Vinicius Antunes,Nunes, Flávio Barbosa
International Archives of Otorhinolaryngology , 2009,
Abstract: Introduction: Clinical case report of rhinosporidiosis, a rare and chronic granulomatous disease, caused by Rhinosporidium seeberi. Objective: To include this disease in the differential diagnoses of polypoid lesions of the nasal mass. Report: A male patient from the North of Brazil evolved a three-year papilomatous polypoid lesion of the left nasal cavity. He was submitted to sinusectomy with resection of the entire lesion, located in ethmoid bulla and uncinated process. Inverted papilloma or fungal sinusitis were differential diagnoses. The histopathological examination revealed a strong infestation by numerous fungal structures with sporangia shape full of sporangiospores. The microorganisms were positive for colorations of Grocott, PAS and Mayer's Mucicarmin; opposite from Coccidioides immitis, which presents no contrast by the mucicarmin. We didn't choose complimentary treatment and after one year of follow-up he presents with no sign of recurrence. Final Comments: Rhinosporidiosis must be considered to be a nasal polypoid lesion differential diagnosis. In the intranasal lesions diagnosis we should keep in mind the patient's origin. The anatomopathological study is mandatory to set the diagnosis. In the rhinosporidiosis, the surgical exeresis can be a curative treatment.
Rinosporidiose nasal: diagnóstico diferencial de sinusite fúngica e papiloma invertido
Crosara, Paulo Fernando Tormin Borges,Becker, Celso Gon?alves,Freitas, Vinicius Antunes,Nunes, Flávio Barbosa
Arquivos Internacionais de Otorrinolaringologia , 2009,
Abstract: Introdu o: Descri o de caso clínico de rinosporidiose, doen a granulomatosa cr nica e rara, causada pelo Rhinosporidium seeberi. Objetivo: Incluir esta doen a nos diagnósticos diferenciais de les es polipoides das fossas nasais. Relato do Caso: Paciente do sexo masculino, proveniente do norte do Brasil, evoluiu por 3 anos, com les o polipoide papilomatosa, da fossa nasal esquerda. Realizada sinusectomia com remo o de toda les o, centrada em bula etmoidal e processo uncinado. Diagnóstico diferencial foi de papiloma invertido ou sinusite fúngica. O exame histopatológico revelou acentuada infesta o por numerosas estruturas fúngicas com formas de esporangios repletas de esporangiósporos. Os microorganismos eram positivos para as colora es de Grocott, PAS e Mucicarmim; ao contrário do Coccidiodes immitis, que n o se contrasta pelo mucicarmim. N o se optou por tratamento complementar e após 1 ano de seguimento n o existem sinais de recidiva. Comentários Finais: A rinosporidiose deve ser considerada como diagnóstico diferencial das les es polipoides nasais. No diagnóstico das les es intranasais deve-se sempre considerar a procedência do paciente. é obrigatório o estudo anátomo-patológico para definir o diagnóstico. Na rinosporidiose, a exérese cirúrgica pode ser curativa.
Valores energéticos de sojas integrais e de farelos de soja, determinados com galos adultos e por equa??es de predi??o
Ost, Paulo Roberto;Rodrigues, Paulo Borges;Fialho, Elias Tadeu;Freitas, Rilke Tadeu Fonseca de;Bertechini, Antonio Gilberto;
Ciência e Agrotecnologia , 2005, DOI: 10.1590/S1413-70542005000200027
Abstract: a metabolism trial was conducted with the objective to determine the values of apparent metabolizable (ema), corrected apparent (eman), true (emv) and corrected true energy (emvn) of toasted whole soybean, micronized whole soybean and five brands of soybean meal through the forced feeding method with adult roosters and afterwards, from the experimental results obtained, it was also validate equations to predict emvn as related with chemical composition of the feeds. the forced feeding method was utilized, by using 24 adult leghorn roosters with means 2.35 ± 165 g. the rooster was considered as an experimental unit and each feed was given to 6 roosters (6 replicates), two replicates in each time. simultaneously, 6 roosters were kept in fasting for determination of the endogenous and metabolic losses. before the experimental period, each rooster was maintained without any feed for 24 hours for emptying of the digestive tract and then forced to ingest 30 grams of the test feed. for that reason, four collections of excreta were done every 12 hours, to avoid fermentation. at the end of this period, the feeds and also the excreta were homogenized for analysis of dry matter, nitrogen and gross energy and then calculated the values of energy. the values of emvn calculated were then contrasted with values of emvn estimated from the prediction equations presented in the national literature for groups of feeds similar to those of the present work. the values of emvn of the soybean meals ranged from 2531 to 2730 kcal/kg of dm and those of toasted and micronized whole soybean were 3732 and 4027 kcal/kg of dm, respectively. for the whole soybeans and soybean meals, the equation which best estimated the values of energy were tmen = 2690.62 - 40.87adf + 19.96ndf + 63.09ee. in general, the equations tested in the present work shown not good estimates of the values of emvn, so, they are not adequate to be utilized as a predictor of energetics values in practice.
Energia metabolizável de alguns alimentos energéticos para frangos de corte, determinada por ensaios metabólicos e por equa??es de predi??o
Nagata, Adriano Kaneo;Rodrigues, Paulo Borges;Freitas, Rilke Tadeu Fonseca de;Bertechini, Ant?nio Gilberto;Fialho, Elias Tadeu;
Ciência e Agrotecnologia , 2004, DOI: 10.1590/S1413-70542004000300025
Abstract: two metabolism assays were carried out with chicks in growth (traditional method of total collection of excreta) in the animal science department of ufla, lavras - mg, to determinate of the nitrogen-corrected apparent metabolizable energy (amen) of some feedstuffs, as well as the determination of the energy values by prediction equations presented in the national and international literature. in the assay i, it was determined amen of some energy alternative feedstuffs to the corn (corn germ, corn quirera, ground and grain millet and ground and grain sorghum) and, in the second, amen of the seven corn hybrids. at same time to the experiments, it were realized laboratory analyses for determination centesimal composition of the tested feedstuffs. the food composition it was used in the prediction amen by equations. the calculated values were, then, compared with observed, using the spearman correlation and scott-knott test. in addition, confidence intervals were obtained by the metabolic assays. ground millet amen was similar to amen grain millet (3223 and 3279 kcal/kg dm respectively), being the same observed for the sorghum (3529 and 3573 kcal/kg dm, ground and grain, respectively). the amen for the corn germ was 3503 kcal/kg dm, while, for the corn quirera, it was 3351 kcal/kg dm. the corn hybrids energy values varied from 3665 to 3804 kcal/kg dm. among the studied equations, the 4021.8 - 227.55ash equation only correlated (p<0,01) with amen mean value observed in vivo, estimating the largest number of energy values inside of calculated confidence intervals. the other equations were not correlated (p<0,01) with the amen values. the results obtained in this assays, allow concluded that the 4021.8 - 227.55ash equation should be used to predict eman values of the studied feedstuffs.
Influência do tempo de coleta e metodologias sobre a digestibilidade e o valor energético de ra??es para aves
Rodrigues, Paulo Borges;Martinez, Ricardo de Souza;Freitas, Rilke Tadeu Fonseca de;Bertechini, Ant?nio Gilberto;Fialho, Elias Tadeu;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000300021
Abstract: a digestibility assay were carried out to evaluate, in consecutives periods, the total excreta collection method and the chromium oxide method as a marker. apparent metabolizable energy corrected by nitrogen retention (amen) and aparent digestibility of dry matter coefficient (addmc) of broiler diet based in a ground corn and soybean meal containing 19% crude protein and 3.100 kcal me/kg. sixty adult leghorn cockerels weigh, in average, 2.350±105 g were used. each cockerel participates in the evaluation of the two methods simutannialy in consecutives periods. a split plots experimental design experiment was used to evaluate the two métodhs. in the chromium oxid method the treatments were defined as a 4x5 factorial arrangemente (chromium oxide levels 0.2, 0.4, 0.6 and 0.8% and collection time 1 to 5 days), totalizing 20 treatments in the plot, in two continuous periods (sub-plots), with three replicates by period. in the total excreta collection method the treatments were defined as five collection times (1 to 5 days) in the plot and the two continuous periods in the subplot with twelve replicates per period. the use of continuous periods did not affect amen or addmc. in the total excreta collection method the values of amen and addmc reached a plateau after two days of collection, showing that the collection time could be reduced by three days without affecting the determinated values. the data showed interaction between chromium oxide levels with collection times for the amen and addmc. three days of excreta collection were enough to determine with accuracy both amen and addmc of the diets based on ground corn and soybean meal. the use of three days of collection and 0.665% of chromium oxide in the diet was possible to determine similar values for amen and addmc in the two methods.
Comparison between two methods for estimating the digestibility of starch and other nutrients in high moisture sorghum grain silage in horses
Gollcher, Augusta Martins Romaniello;Lima, José Augusto de Freitas;Fialho, Elias Tadeu;Rodriges, Paulo Borges;Lima, Renato Ribeiro de;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000600013
Abstract: it was carried out two assays with the purpose of evaluating the mobile nylon bag technique and the method of total feces collection method in the estimative of the apparent digestibility of starch and other nutrients in high moisture sorghum grain silages in horses. four adult horses of mixed origin at the age of 7 years and average body weight of 330 kg were used. in the first assay, the digestibility of the nutrients in the silage of high moisture sorghum grain with low level of tannin was evaluated by utilizing the total feces collection and the mobile nylon bag technique with silage samples ground in three particle sizes. in the second assay, the two methods were used for estimating the digestibility of the nutrients of the silage of high moisture sorghum grain with high level of tannin. a randomized block experimental design was used, considering each animal as a block. the disappearance of the nutrients, in the naylon bag, of the samples of the high moisture sorghum grain silages ground in three particle sizes of 1, 8 and 13 mm was also evaluated in laboratory. daily dry matter intake was 2.0% of the body weight and test diets were made up of 30% of high moisture sorghum grain silages and 70% of coast-cross hay. the coefficients of dry matter digestibility, energy and protein of both silages were similar among the total feces collection method and the mobile nylon bag technique when 8-mm feed samples were used. the coefficient of starch digestibility was similar among the methods when sorghum samples were ground at 1 mm in the mobile nylon bag technique. reduced particle size increased the nutrient losses of the nylon bags after washing in water. the mobile nylon bag technique allows to estimate the digestibility coefficient of nutrients, however, further studies for evaluation of particle size of the samples should be conducted.
Redu??o do nível de proteína bruta da ra??o com suplementa??o de aminoácidos sintéticos para leit?es na fase inicial
Zangeronimo, Márcio Gilberto;Fialho, Elias Tadeu;Lima, José Augusto de Freitas;Rodrigues, Paulo Borges;Murgas, Luis David Solis;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000300030
Abstract: the effects of reducing dietary cp and soybean meal levels on performance, n excretion, organs weight and diarrhea incident were evaluated in pigs supplemented with amino acids. the diets contained four levels of cp (21.0, 19.5, 18.0, and 16.5%) and were supplemented with synthetic amino acid (lysine, metionine and treonine). in experiment i, eight crossbred (ld x lw) castrated males (initial weight = 22 kg) were individually allotted to a randomized block design, with split plot arrangement to determine n balance. no significant changes in amount of n ingested and excreted in the feces were observed among the treatments. however, the treatments linearly decreased n excreted in the urine, as dietary cp decreased. in experiment ii, 60 pigs (initial weight = 8.5 kg) were assigned to a randomized blocks design with 4 x 3 factorial arrangement (four diets and three slaughter ages), with five blocks and one animal per unit experimental, to evaluate the relative weights of liver, spleen and pancreas and intestinal morfometry during the first three post weaning weeks. no significant differences on these parameters were observed across the treatments, whereas crypt depth changed in the first post weaning week, that showed cubic effect. in experiment iii, 60 animals (initial weight = 8,0 kg) were allotted to a randomized blocks design, with five blocks and three animals per experimental unit, to evaluate the performance and diarrhea incidence. no significant differences on these parameters were observed across the treatments. pigs fed diet with 16.5% cp showed decreasing diarrhea incidence. reducing the dietary cp levels from 21 to 16.5% for pigs in the nursery phase decreased n excretion in the urine and diarrhea incidence with no changes on performance and physiologic parameters of piglets from 8 to 25 kg bw.
Desempenho e excre??o de nitrogênio de leit?es dos 9 aos 25 kg alimentados com dietas com diferentes níveis de lisina digestível e proteína bruta
Zangeronimo, Márcio Gilberto;Fialho, Elias Tadeu;Murgas, Luis David Solis;Freitas, Rilke Tadeu Fonseca de;Rodrigues, Paulo Borges;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000600022
Abstract: two experiments were conducted to evaluate dietary levels of crude protein (cp) and digestible lysine (lysd) on the performance and nitrogen (n) excretion of piglets in the initial phase. in experiment 1, 80 barrows and females (initial weight of the 9.1 kg ± 1.2 kg and final weight of the 21.5 ± 4.8 kg), crossbred (landrace x large white), were distributed to a randomized blocks in factorial scheme 2 x 4 (two levels of cp 16 and 18% - and four levels of lysd (0.7; 0.9; 1.1 and 1.3%) with five replications and two animals per experimental unit, during 35 days. the average daily weight gain (adg), average daily feed intake (adfi) and feed:gain ratio (f:g) were evaluated. in experiment 2, 32 barrows (25.0 ± 1.3 kg), from experiment i, were individually allotted in metabolic cages (experimental unit), during 11 days, to evaluate the ingested n, n in feces and n in urine . the diets were formulated with corn, soybean meal and modified powder milk, supplemented with vitamins and minerals. the amino acids methionine and threonine were corrected in function of the lysine levels, following the ideal protein concept. no interaction lysd x cp was observed for neither studied variable. average daily gain and f:g showed a quadratic effect for the lysd levels and were better in the animals fed diets with levels of 1.04 and 1.09%, respectively. the levels of n in the fezes showed crescent linear effect with the lysd and cp levels, while the n levels in the urine showed quadratic effect with lysd levels, with lower excretion for the level of 1.03% in the ration. no influence was observed for lysd and cp level on adfi and n in fezes. the level of 1.05% lysd in diets with 16 and 18% cp provide best performance and lower excretion of de n in dejects of the swine.
Page 1 /30131
Display every page Item


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