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Search Results: 1 - 10 of 33977 matches for " Rony Antonio;Vaz "
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Níveis de proteína bruta e suplementa??o de aminoácidos em dietas para leitoas mantidas em ambiente de alta temperatura dos 60 aos 100 kg
Orlando, Uislei Antonio Dias;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Ferreira, Rony Antonio;Vaz, Roberta Gomes Mar?al Vieira;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000500012
Abstract: this experiment was conduced to determine the level of cp with amino acid supplementation in diets to gilts under high environmental temperature in finishing phase. thirty-five crossbreed gilts (landrace x large white) with an average initial weight of 60.3 kg were allotted in a randomized experimental design with five diets (17.3, 16, 14.7, 13.4, and 12.1% cp) seven replications and one animal by experimental unity. the experimental diets were supplied ad libitum until the end of the experiment when the animals reached the average weight of 100.3 kg. the average temperature inside the room was kept in 30.6oc and the relative humidity in 71%. the black globe humidity index calculated in the period was 81. not effect was observed for the reduction of cp level of the diet on the studied performance characteristics (feed intake, weight gain and feed gain ratio). the carcass characteristics (carcass length; loin eye area; backfat thickness and yield of carcass, lean meat, fat and ham) also were not influenced by the cp reduction in the diets. the cp levels and supplementation of amino acids in the dieta influenced the relative and absolute weight of intestine. smaller values were observed in animals fed diet with smaller level of cp (12.1%). the reduction of cp level in the diet from 17.3 to 12.1% did not harms the performance of gilts maintained in a high environmental temperature from 60 to 100 kg since the diets are properly supplemented with limiting essential amino acids.
Níveis de proteína bruta em ra??es para suínos machos castrados em fase inicial de crescimento, mantidos em ambiente de baixa temperatura
Saraiva, Edilson Paes;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Ferreira, Aloízio Soares;Ferreira, Rony Antonio;Rezende, Wilkson Oliveira;Orlando, Uislei Antonio Dias;Vaz, Roberta Gomes Mar?al Vieira;
Revista Brasileira de Zootecnia , 2003, DOI: 10.1590/S1516-35982003000700019
Abstract: sixty crossbred piglets, with average initial weight of 15.1 ± 0.50 kg and 56 ± 3.6 days old were used to evaluate the dietary crude protein levels, for barrows in the initial growing phase, under low temperature environment (15oc). the animals were allotted to a randomized blocks design, with five treatments, six replications and two animals per experimental unit. the treatments consisted of diets with 17.0, 18.0, 19.0, 20.0, and 21.0% crude protein (cp). the dietary crude protein levels affected daily weight gain, that increased in a quadratic way up to 19.6%. feed:gain ratio also changed in a quadratic way, increasing up to 20.0%. daily feed and digestible energy intakes were not influenced by the treatments. the best fit was obtained with the lrp discontinuous model, which estimated the crude protein level at 20%, when the data reached a plateau. the treatments influenced the protein deposition rate, that increased linearly, while the fat deposition rate did not change. it was concluded that the dietary crude protein level of 20.0%, associated to a daily intake of 10.7g total lysine, showed the best results of performance for barrows from 15 to 30 kg, under low temperature environment.
Redu??o da proteína bruta e suplementa??o de aminoácidos para suínos machos castrados dos 30 aos 60 kg mantidos em ambiente de alta temperatura
Ferreira, Rony Antonio;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Saraiva, Edilson Paes;Silva, Francisco Carlos de Oliveira;Orlando, Uislei Antonio Dias;Vaz, Roberta Gomes Mar?al Vieira;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000400010
Abstract: this experiment was carried out to evaluate the influence of the reduction of dietary cp levels and amino acid supplementation on performance of barrows maintained in a high environmental temperature. a total of sixty crossbreed (landrace x large white) piglets (average body weight = 29.8 kg) was allotted in a completely randomized experimental design with five treatments (17, 16, 15, 14 and 13% cp), six replications and two animals per experimental unit. diets and water were suplied ad libitum until the end of the experimental period, when the animals reached the average weight of 59.9 kg. the average temperature in the room was maintained at 32.2oc and the relative humidity at 74.4%, corresponding to a black globe-humidity index of 82.8. the reduction of dietary cp level affected weight gain (wg). the animals fed 14% cp diet showed significant wg reduction. feed intake (fi) also was affected by cp level, and the animals fed 14% cp diet showed smaller fi values than those fed 16 and 13% cp diets. feed:gain ratio was not affected by treatments. the animals fed the diet with 14% cp showed the smallest values of protein and fat deposition rates in the carcass. the animals fed the diet with 17% cp showed higher kidneys weights. it was concluded that dietary cp level for barrows from 30 to 60 kg body weight, maintained in a high environmental temperature, can be reduced from 17 to 13% with no effect on performance and protein deposition rate in carcass since diets are supplemented with essential amino acids.
Níveis de proteína bruta e suplementa??o de aminoácidos em ra??es para leitoas mantidas em ambiente termoneutro dos 60 aos 100 kg
Orlando, Uislei Antonio Dias;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Ferreira, Rony Antonio;Silva, Francisco Carlos de Oliveira;Vaz, Roberta Gomes Mar?al Vieira;Siqueira, Jefferson Costa de;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000200020
Abstract: a trial was conduced to evaluate decreasing levels of cp with amino acid supplementation on performance of gilts on thermoneutral environment. thirty-five crossbreed gilts (landrace x large white) averaging initial weight of 60.5 kg were allotted to a complete randomized design with five treatments (17.3, 16, 14.7, 13.4 and 12.1% of cp) of seven replications (one animal per experimental unit). the experimental diets were fed ad libitum until the end of the experiment when the animals reached the average weight of 100.6 kg. no effect of decreasing dietary levels of crude protein on performance (feed intake, weight gain and feed gain ratio) was observed. decreasing dietary cp levels did not affect the carcass characteristics (carcass length, loin eye area, backfat thickness and carcass, lean growth, fat and ham yield), but affected the relative and absolute weights of liver and the greatest value was observed in animals fed diet with 16.0% of cp. decreasing dietary cp levels from 17.3 to 12.1% for gilts from 60 to 100 kg on thermoneutral environment did not affect performance, since diets are supplemented with limiting essential amino acids.
Redu??o da proteína bruta da ra??o para suínos machos castrados dos 15 aos 30 kg mantidos em termoneutralidade
Ferreira, Rony Antonio;Oliveira, Rita Flávia Miranda de;Donzele, Juarez Lopes;Lopes, Darci Clementino;Orlando, Uislei Antonio Dias;Resende, Wilkson de Oliveira;Vaz, Roberta Gomes Mar?al Vieira;
Revista Brasileira de Zootecnia , 2003, DOI: 10.1590/S1516-35982003000700013
Abstract: one experiment was conducted to evaluate the influence of reduction of the crude protein (cp) level of ration with amino acid supplementation on performance of castrated males swines maintained in a termoneutral environment (22oc). a total of sixty crossbred swines (landrace x large white), with average initial weight of 15.0 kg and 53.1 days old, was allotted to a completely randomized design with five treatments (18, 17, 16, 15 and 14% cp), six replications and two animals per experimental unit. the experimental diets were fed ad libitum until the end of the experiment, when the animals reached the average weight of 30.2 kg. the average temperature in the room was maintained in 22oc with relative humidity of 82.3%. the black globe-humidity index (bghi) was 69.6. no effect of decreasing dietary cp level on the evaluated performance parameters (feed intake, weight gain and feed:gain ratio) was observed. the deposition rates of protein and fat were not affected by the reduction of cp level and amino acid supplementation. the treatments affected the absolute and relative weight of stomach and absolute weight of intestine, and the highest weights were observed in the animals fed diet with the highest cp level. it was concluded that the dietary crude protein level can be reduced from 18 to 14% to castrated piglets from 15 to 30 kg maintained in a termoneutral environment with no effect on performance, since diets are supplemented with essential amino acids.
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.
Derivativos: o que s?o e a evolu??o quanto ao aspecto contábil
Amaral, Carlos Antonio Lopes Vaz do;
Revista Contabilidade & Finan?as , 2003, DOI: 10.1590/S1519-70772003000200005
Abstract: the derivatives market has been increasing at an impressive pace over the last twenty years, both in terms of traded volume and financial instruments available. although losses occurred for companies whose names were familiar to the public in general, along with the innumerous warnings given by the media about the risks involved in this kind of instruments, derivatives have been used by a wide range of companies, since they allow for the transfer of either market or credit risk to third parties. the aforesaid losses were due to the relative lack of knowledge with which these instruments have been used. moreover, these instruments were always considered complex and rather sophisticated and, in the first instance, they were not accounted for, i.e., they were considered offbalance sheet items and, consequently, many companies used them to escape from legal demands, thus maintaining the assets' risks in their balance sheets, when they should really avoid this kind of procedures. in this article, our objective was concentrated on the definitions of a derivative instrument, seeking to show the evolution in its accounting treatment. finally, the approach of sfas 133 is treated, which measures derivatives differently, demonstrating that their accounting treatment by means of fair value is an evolution in comparison with the "old" historical cost method.
Imunodiagnóstico da neurocisticercose: teste imunoenzimático com antígenos quimicamente ligados a suportes para pesquisa de anticorpos em soro e líquido cefalorraquiano
Vaz, Adelaide José;Ferreira, Antonio Walter;
Revista do Instituto de Medicina Tropical de S?o Paulo , 1988, DOI: 10.1590/S0036-46651988000100001
Abstract: the enzyme-linked immunosorbent assay, elisa, was developed in a new type of support consisting of discs of sinthetic fabric-resin (elisa-d) with antigenic components of cysticercus cellulosae covalently bound for detection of antibodies in sera and cerebrospinal fluid (csf). the support fabric-resin consistis of poliéster fabric coated with crosslinked resin (n-methylol-acrylamide) containing n-methylol groups able to form covalent bounds with functional groups of proteins and polysaccharides which are present in the antigenic saline extract obtained from cysticercus cellulosae. sera titer and csf titer were determined using only one dilution according to the dose-response standard curves obtained. thirty-eight sera and 74 csf from patients with confirmed diagnosis of neurocysticercosis and 50 sera and 107 csf from a control group (patients suffering from neurological disorders other than neurocysticercosis and supposedly healthy individuals) were assayed the sensitivity and the specificity of elisa-d were determined: 94.7% and 92.0% for sera and 98.6% and 100% for csf. the elisa-d test proved to be efficient for the diagnosis of neurocysticercosis, mainly when carried out in csf, with the advantages of good stability, easy preparation and execution and low cost.
Redu o da proteína bruta da ra o para suínos machos castrados dos 15 aos 30 kg mantidos em termoneutralidade
Ferreira Rony Antonio,Oliveira Rita Flávia Miranda de,Donzele Juarez Lopes,Lopes Darci Clementino
Revista Brasileira de Zootecnia , 2003,
Abstract: Um experimento foi conduzido para avaliar a influência da redu o da proteína bruta (PB) e suplementa o de aminoácidos sintéticos sobre o desempenho de suínos machos castrados mantidos em ambiente termoneutro (22masculineC). Foram utilizados 60 leit es mesti os (Landrace x Large White) com peso médio inicial de 15,0 kg e idade média de 53,1 dias, em delineamento inteiramente ao acaso, com cinco tratamentos (18, 17, 16, 15 e 14% PB), seis repeti es e dois animais por unidade experimental. As ra es experimentais foram fornecidas à vontade até o final do experimento, quando os animais atingiram o peso médio de 30,2 kg. A temperatura média no interior da sala foi mantida em 22masculineC, com umidade relativa de 82,3%. O índice de Temperatura de Globo e Umidade calculado no período foi de 69,6. N o se observou efeito da redu o do nível de proteína bruta da ra o sobre as variáveis de desempenho (consumo de ra o, ganho de peso e convers o alimentar). As taxas de deposi o de proteína e gordura também n o foram influenciadas pela redu o da PB na ra o. Os tratamentos influenciaram os pesos absoluto e relativo do est mago e o peso absoluto do intestino, sendo os maiores valores observados em animais que receberam a ra o com maior nível de proteína bruta. Concluiu-se que o nível de PB da ra o pode ser reduzido de 18 para 14%, sem prejudicar o desempenho de suínos machos dos 15 aos 30 kg mantidos em ambiente termoneutro, desde que devidamente suplementadas com aminoácidos essenciais limitantes.
Integral Sugar Cane in the feeding of growing swine (30-60 kg) Cana-de-a úcar integral na alimenta o de suínos em crescimento (30-60 kg)
Mariana Duran Cordeiro,Rita da Trindade Ribeiro Nobre Soares,Rony Antonio Ferreira,José Brand?o Fonseca
Revista Brasileira de Saúde e Produ??o Animal , 2009,
Abstract: The experiment was carried at the Swine Sector of the Animal Husbandry and Animal Nutrition Laboratory of North Rio de Janeiro State University. The objective was to evaluate the performance of swine fed diets containing sugar cane. A total of 40 Large White x Landrace cross bred pigs, 30 kg initial medium weight, were randomly distributed in 20 pens, with two animals in each experimental unit. The treatments were five experimental diets: T1= Controls diet; T2= Controls diet, with replacement of 15% of the diet by sugar cane; T3= Controls diet with correction of P, Ca and lysine levels and replacement of 15% of the diet by sugar cane; T4= Controls diet, with replacement of 30% of the diet by sugar cane; T5= Controls diet with correction of P, Ca and lysine levels and replacement of 30% of the diet by sugar cane. Data on daily fed consumption, daily weight gain, feed conversion and bionutricional index – IBN were evaluated. Pigs fed with sugar cane had higher (P<0,05) daily feed intake and worse feed convertion rate. Pigs that received 15% of the diet with sugar cane had higher (P<0,05) daily weight gain in relation to those fed with 30%. However, the inclusion of 30% of sugar cane resulted in larger economic efficiency, indicating the viability of sugar cane utilization. O experimento foi conduzido na Unidade de Apoio à Pesquisa do Laboratório de Zootecnia e Nutri o Animal da Universidade Estadual do Norte Fluminense. O objetivo foi avaliar o desempenho de suínos em crescimento, consumindo cana-de-a úcar como parte da sua alimenta o. Foram utilizados 40 leit es mesti os (Large White X Landrace), com peso médio inicial de 30 kg, distribuídos aleatoriamente em 20 baias, com 2 animais por unidade experimental. Os tratamentos consistiram em 5 ra es experimentais: T1= Ra o controle; T2 = Ra o controle, com substitui o da oferta em 15% por cana-de-a úcar; T3 = Ra o controle com níveis de P, Ca e lisina corrigidos, com substitui o da oferta em 15% por cana-de-a úcar; T4 = Ra o controle, com substitui o da oferta em 30% por cana-de-a úcar; T5 = Ra o controle com níveis de P, Ca e lisina corrigidos, com substitui o da oferta em 30% por cana-de-a úcar. Foram avaliados o consumo de ra o diário, o ganho de peso diário, a convers o alimentar, o índice bionutricional –IBN e realizada a análise econ mica das ra es. Os animais alimentados com ra o contendo cana-de-a úcar apresentaram maior (P<0,05) consumo de ra o diário e pior (P<0,05) convers o alimentar. Os animais que receberam 15% de cana-de-a úcar apresentaram maior (P<0,05) ganho de peso diário e
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