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Search Results: 1 - 10 of 14799 matches for " Rafaela Antonia Ramos;Siqueira "
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Níveis de proteína bruta e suplementa??o de aminoácidos em ra??es para leitoas dos 30 aos 60 kg mantidas em ambiente de alta temperatura
Orlando, Uislei Antonio Dias;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Silva, Francisco Carlos de Oliveira;Generoso, Rafaela Antonia Ramos;Siqueira, Jefferson Costa de;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000700016
Abstract: an experiment was conduced to evaluate crude protein (cp) levels and amino acid supplementation for gilts from 30 to 60 kg maintained in a high environmental temperature (air temperature of 30oc; relative humidity of 66.1% and bghi of 79.7). fifty crossbreed gilts (landrace x large white) with an average initial weight of 30.2 kg were allotted to a randomized experimental design with five treatments and five replications and two animals per experimental unity. the treatment consisted of five levels o cp (19, 18, 17, 16, and 15%) in the ration and of the supplementation with lysine, methionine, tryptophan, threonine and valine to maintain the same protein quality of the ration. the experimental diets were given ad libitum until the end of the experiment when the animals reached the average weight of 60.1 kg. no effect of dietary level of crude protein was observed on pig performance (feed intake, weight gain and feed:gain ratio). neither carcass protein deposition was influenced by reduction of dietary of dietary level of cp. animals fed 18% cp showed the best carcass protein deposition. the protein levels did not influence the absolute and relative weights of the pig organs. dietary cp level can be reduced by 4% (from 19 to 15% of cp) without any effect on performance of gilts from 30 to 60 kg maintained in a high environmental temperature since that the rations be adequately supplemented with all essential limiting amino acids.
Níveis de proteína bruta e suplementa??o de aminoácidos em ra??es para leitoas mantidas em ambiente de conforto térmico dos 30 aos 60 kg
Orlando, Uislei Antonio Dias;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Ferreira, Aloízio Soares;Silva, Francisco Carlos de Oliveira;Generoso, Rafaela Antonia Ramos;Vaz, Roberta Gomes Mar?al Vieira;Siqueira, Jefferson Costa de;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000100017
Abstract: an experiment was conduced to determine the crude protein (cp) level in diets with amino acids supplementation for gilts maintained in a thermal comfort environment. fifty crossbreed crossbred gilts (landrace x large white) with initial average weight of 30.1 kg were allotted to a completely randomized experimental design, with five treatments (19, 18, 17, 16 and 15% of cp with supplementation of lysine, methionine, tryptophan, threonine and valine to maintain the same protein quality) five replicates and two animals per experimental unit. the experimental rations were fed ad libitum until the end of the experiment, when the animals reached the average weight of 60.3 kg. the cp level of the ration influenced the daily weight gain and the feed:gain ratio however the treatments did not influence the daily feed intake. the protein deposition (pd) did not change from 19 to 16% of cp of the diet. however the animals that fed diet with smaller level showed the lowest value of pd. the treatments did not influence the absolute and relative weights of all evaluated organs. it was concluded that the crude protein level, for gilts from 30 to 60 kg, maintained in thermal comfort environment can be reduced from 19 to 15% with no negative effect on performance since rations are supplemented with limiting essential amino acids
Composi??o química e energética de alguns alimentos para frangos de corte em duas idades
Generoso, Rafaela Antonia Ramos;Gomes, Paulo Cezar;Rostagno, Horacio Santiago;Albino, Luiz Fernando Teixeira;Barreto, Sergio Luiz de Toledo;Brumano, Gladstone;
Revista Brasileira de Zootecnia , 2008, DOI: 10.1590/S1516-35982008000700016
Abstract: this experiment was carried out to determine of the values of apparent metabolizable energy (ame) and nitrogen corrected apparent metabolizable energy (amen) and to determine of the chemical composition of some feeds. the traditional method of total excreta collection was used with male broilers chickens in the period from 21 to 30 days old and 41 to 50 days old. the birds were distributed to a completely randomized experimental design, with eleven diets, ten with tested feeds and one reference diet, and each diet with six replications and six and four birds per experimental unit. the following feeds were studied: broken rice, whole rice meal, corn, sorghum, wheat bran, soybean meal, peanut meal, and cottonseed meal, 28%cp, and two sugarcane yeast (40 and 43% cp). the values of amen (kcal/kg as fed), in the first and second experimental periods were, respectively, for sugarcane yeast 40% cp: 2.395 and 2.483, for sugarcane yeast 43% cp: 2.626 and 2.726, for soybean meal: 2.202 and 2.306, for cottonseed meal 28% cp: 1.605 and 1.786: for peanut meal: 2.155 and 2.471, for wheat bran: 1.683 e 1.877, for sorghum: 3.165 and 3.364, for corn: 3.351 and 3.524, for whole rice meal: 2.446 and 2.650 and for the broken rice: 3.138 and 3.278. all values of ame and amen, for al feeds, were higher in second experimental period, showing that, with advancing of the age, birds improve the utilization of feeds.
Níveis de proteína bruta para leitoas dos 30 aos 60 kg mantidas em ambiente de alta temperatura (31oC)
Orlando, Uislei Antonio Dias;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Lopes, Darci Clementino;Silva, Francisco Carlos de Oliveira;Generoso, Rafaela Antonia Ramos;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000600022
Abstract: this experiment was conducted to evaluate levels of crude protein (cp) for growing gilts, under high temperature environment. the internal temperature at room was maintained at 30.7 ± 0.61°c, with relative humidity of 66.4 ± 7.7%, and the calculated black globe humidity index (bghi) in period was of 81.1 ± 1.36. forty crossbred gilts, with average initial weight of 29.7 ± 1.60 kg, were allotted to an experimental design of randomized blocks with five treatments (16, 17, 18, 19 and 20% cp), four replicates and two animals per experimental unit. the experimental diets were isoenergetics (3400 kcal of de/kg) and were formulated to meet the animals requirements, except for cp. diet and water were fed ad libitum to animals, until the end of the experimental period, when the gilts reached the average weight of 60.0 ± 1.93 kg. average daily weight gain was not affected by the treatments. however the feed:gain ratio quadraticly improved up to level of 18.26% cp. the protein and lysine intakes increased linearly with dietary cp levels . however the lysine levels of diet did not influence the diet and digestible energy intakes. fat deposition rate (fdr) in carcass quadractly changed and decreased up to 19.48% of cp in diet, while the protein deposition rate (pdr) linearly increased. despite of quadract and linear effects of treatments, respectively, on fdr and pdr, the "linear response plateau" (lrp) model was the one that better fitted to the data and the levels of protein were estimated in 18.38 and 18.12% , the plato point for fdr and pdr. gilts in the growing phase, under heat stress environment, require 18.26% cp in the diet for better performance and carcass composition.
Valores de aminoácidos digestíveis de alimentos para aves
Gomes, Paulo Cezar;Generoso, Rafaela Antonia Ramos;Rostagno, Horacio Santiago;Albino, Luiz Fernando Teixeira;Brumano, Gladstone;Mello, Heloisa Helena de Carvalho;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000600014
Abstract: this experiment was carried out to determine the values of the real digestibility coefficients of amino acids by using the method of "forced feed" with cecectomized roosters. the studied food were the following: rice bran, whole rice meal, corn, sorghum, wheat bran, soybean meal, cotton meal 28%, cotton meal 38%, yeast sugar cane 43% and yeast sugar cane 40%. the mean values of real digestibility coefficients of essential and non-essential amino acids were, in percentage, the following: for rice bran, 77.53 and 67.21; for rice meal, 73.33 and 52.54; for corn, 84.65 and 74.42; for sorghum, 84.48 and 67.29; for wheat bran, 70.75 and 48.55; for soybean meal, 89.37 and 85.22; for cotton meal 28%, 74.85 and 74.13; for cotton meal 38%, 77.50 and 72.46; for yeast sugar cane 43%, 49.16 and 48.63; and yeast sugar cane 40%, 46.03 and 38.88. the values of the coefficients of real digestibility of essential and nonessential amino acids of feedstuffs studied allow to formulate more efficient rations for birds.
Lisina em ra??es para suínos machos castrados selecionados para deposi??o de carne magra na carca?a dos 110 aos 125 kg
Oliveira, Alexandre Luiz Siqueira de;Donzele, Juarez Lopes;Oliveira, Rita Flávia Miranda de;Ferreira, Aloízio Soares;Moita, Antonio Marcos Souto;Generoso, Rafaela Ant?nia Ramos;
Revista Brasileira de Zootecnia , 2003, DOI: 10.1590/S1516-35982003000100019
Abstract: fourty-eight barrows proceeding from crossing between commercial hybrids were used in a study to evaluate the different lysine levels on the performance and the carcass characteristics. the swines average initial and final weight was 110.1 ± 0.72 kg and 125.3 ± 1.23 kg, respectively. the animals were distributed in an experimental design of randomized blocks with four treatments, six replicates and two animals per replicate. the treatments corresponded to a basal diet with 13.7% of crude protein and 3367 kcal de/kg supplemented with four levels of l-lysine-hcl resulting in diets with 0.50, 0.60, 0.70 e 0.80% of total lysine. the lysine levels influenced the feed:gain ratio and the muscle efficiency conversion that were reduced by linear form. the daily lysine intake increased with the elevation of diet lysine levels. there was no effect of the treatments on weight gain, carcass characteristics, carcass yield, lean yield, fat yield, and ham yield. for the studied genotype it was concluded that barrows from 110 to 125 kg require 0.80% of total lysine corresponding to a daily lysine intake of 23.9 g.
First World Congress on Leishmaniasis-World Leish1
Franco Antonia Maria Ramos
Memórias do Instituto Oswaldo Cruz , 1997,
Abstract:
Os professores formadores e os saberes de orienta o mediante a es tutorais
Azevedo, Maria Antonia Ramos de
Educa??o , 2010,
Abstract: Neste trabalho identificamos saberes de orienta o que professores orientadores mobilizam mediante o trabalho desenvolvido em atividades de Prática de Ensino e Estágio Supervisionado. Na pesquisa qualitativa, investigamos quatro professores de um Curso de Licenciatura em Química, surgindo saberes de orienta o: dialógicos e afetivos; relativos à autoforma o e auto-organiza o; a o colaborativa; técnico-científicos e pedagógicos relativos às áreas de conhecimento e os saberes sobre os processos teórico-práticos de aprendizagem da docência. Destacamos que os formadores desenvolvem os saberes dialógicos e afetivos e os de autoforma o e auto-organiza o baseados na reflex o permanente. Os saberes de orienta o voltados à a o colaborativa, os técnico-científicos e pedagógicos e os relativos processos teórico-práticos da aprendizagem sobre a docência precisam ser mais mobilizados na universidade e nas parcerias interinstitucionais.
Cellular and biochemical responses induced by Biotherapics prepared from intact influenza A (H3N2) and inactivated influenza A (H3N2) virus at 12x and 30x in the MDCK cells
Camila Siqueira,Rafaela Mendon???§a,Venicio Veiga,Mariah Marcondes
International Journal of High Dilution Research , 2011,
Abstract: Biotherapics are homeopathic remedies prepared from organic products that are chemically undefined and can be used for treatment of diseases like influenza. There are several classes of biotherapics and, among these, there are some called "living biotherapics" or "Roberto Costa ¢a a ¢s Biotherapics". This study aimed to compare the cellular and biochemical effects of biotherapics prepared from intact influenza virus diluted in water and the one obtained from the same viral sample inactivated by ethanol 70% (v / v), both in the potencies of 12x and 30x. Transmission electron microscopy (TEM) analyses were performed on both preparations to assess the integrity of viral particles, which showed that ethanol 70% (v/v) induced a complete denaturation of viral particles. In contrast, the integrity of virus particles was preserved when water was used as the biotherapic solvent. Cellular and biochemical alterations induced by the preparations on MDCK cells were analyzed and compared with those induced by respective controls (water 30x-treated and untreated cells). Cellular viability analyzed by MTT method showed statistically significant differences (p <0.05) in MDCK cells treated with intact biotherapic for 5 (3 stimuli) and 30 (18 stimuli) days in comparison with untreated control. TEM analysis did not show significant cellular changes when the different experimental groups were compared. The enzymatic activity of phosphofructokinase 1 (PFK), an important enzyme in the glycolytic pathway, presented a statistically significant increase (p <0.05) after 30 days of treatment when compared to control groups. The results obtained suggest that inactivation of viral sample with ethanol 70% induces lysis and disruption of viral particles. In addition, preliminary results indicated that treatment with intact biotherapic seems to induce higher variations on MDCK cells responses when compared to inactivated-biotherapic-treated cells. Further analyses are ongoing, including scanning electron microscopy and quantification of the number of mitosis, in order to elucidate the mechanisms involved with biochemical and cellular responses induced by theses biotherapics.
Characterization of Endotrypanum (Kinetoplastida: Trypanosomatidae), a Unique Parasite Infecting the Neotropical Tree Sloths (Edentata)
Franco, Antonia M Ramos;Grimaldi Jr, Gabriel;
Memórias do Instituto Oswaldo Cruz , 1999, DOI: 10.1590/S0074-02761999000200026
Abstract: this article reviews current concepts of the biology of endotrypanum spp. data summarized here on parasite classification and taxonomic divergence found among these haemoflagellates come from our studies of molecular characterization of endotrypanum stocks (representing an heterogenous population of reference strains and isolates from the brazilian amazon region) and from scientific literature. using numerical zymotaxonomy we have demonstrated genetic diversity among these parasites. the molecular trees obtained revealed that there are, at least, three groups (distinct species?) of endotrypanum, which are distributed in central and south america. in concordance with this classification of the parasites there are further newer molecular data obtained using distinct markers. moreover, comparative studies (based on the molecular genetics of the organisms) have shown the phylogenetic relationships between some endotrypanum and related kinetoplastid lineages.
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