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Search Results: 1 - 10 of 22227 matches for " Paulo Cezar;Toledo "
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Composi??o bromatológica, energia metabolizável e equa??es de predi??o da energia do gr?o e de subprodutos do trigo para pintos de corte
Nunes, Ricardo Vianna;Rostagno, Horacio Santiago;Albino, Luiz Fernando Teixeira;Gomes, Paulo Cezar;Toledo, Rodrigo Santana;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000300025
Abstract: the apparent metabolizable energy (ame) and nitrogen corrected apparent metabolizable energy (amen) values were determined and energy prediction equations obtained using the chemical composition of 11 feedstuffs. the feedstuffs evaluated were: brown flour meal, wheat flour, wheat grain, wheat grain residue, wheat germ, cookies residue, macaroni residue and, four wheat brans. total excreta collection method was used, with 480 broiler chicks, 16 to 24 days old. a randomized complete design was utilized, with 11 feedstuffs and a basal reference diet, using four replications and ten birds per experimental unit (five males and five females). each feedstuff replaced the reference diet at the amount of 40%. the feedstuffs ame and amen values expressed in kcal/kg of dry matter (dm), varied from 1807 to 1758 for wheat bran 3 and from 4480 to 4339 for cookies residue, respectively. the prediction equations that best estimated (r2 = 98%) ame and amen values were those in which crude protein (cp) and/or neutral detergent fiber (ndf) contents, were used ame (kcal/kg dm) = 4910,03 - 47,82*cp - 47,77*ndf; and amen (kcal/kg dm)= 4754.02 - 48.38*cp - 45.32*ndf.
Desempenho de frangos de corte, digestibilidade de nutrientes e valores energéticos de ra??es formuladas com vários milhos, suplementadas com enzimas
Rodrigues, Paulo Borges;Rostagno, Horacio Santiago;Albino, Luiz Fernando Teixeira;Gomes, Paulo Cezar;Barboza, Walter Amaral;Toledo, Rodrigo Santana;
Revista Brasileira de Zootecnia , 2003, DOI: 10.1590/S1516-35982003000100022
Abstract: two assays were carried out to evaluate the broilers performance, nutrients digestibility and the energy values of diets formulated with corn from different varieties (experiment 1) and regions (experiment 2), supplemented with an enzymatic complex. in each assay, were used 480 male broilers hubbard, 14 days old, grown from 14 to 27 days to evaluate performance. the broiler chickens fed an experimental diets in 6x2 factorial design (varieties x region), in four replicates of 10 broilers in each experimental unit. each corn were mixed in a basal diet in a fixed amount of 63.24%, constituting the experimental diets. the crude protein and energy values changed according to corn composition. chromic oxide (0.5%) was used as indicator. during the 23rd to 27th days, the excretas were collected and, in the 28th day, all broilers of each replicate were slaughtered and the digesta present in the last 30 cm of the terminal ileum, anterior to ileo-cecal junction, was collected. the samples of the excreta and ileal digesta were analyzed for dry matter, nitrogen, gross energy and starch, and the digestibility coefficients and energy values, were calculated using the indigestibility factor of chromic oxide. it was concluded that origen (varieties or regions) effected broiler performance; the nutrient digestibility and energy values of diets formulated with the corn type showed difference as a function of the chemical composition. the ileal digestibility of crude protein, starch and energy was improved in the diets supplemented with enzymes.
Valores Energéticos da Soja e Subprodutos da Soja, Determinados com Frangos de Corte e Galos Adultos
Rodrigues, Paulo Borges;Rostagno, Horacio Santiago;Albino, Luiz Fernando Teixeira;Gomes, Paulo Cezar;Nunes, Ricardo Vianna;Toledo, Rodrigo Santana;
Revista Brasileira de Zootecnia , 2002, DOI: 10.1590/S1516-35982002000700020
Abstract: energy values (aparent metabolizable energy - ame and true metabolizable energy - tme) of soybean meal samples (1, 2, 3, 4, and texturized) and processed full fat soybean samples (jet sploder, toasted and micronized) were determined by using the traditional method of excreta collection with growing chickens and the forced feeding method, by using adult cockerels. in the first assay, the experimental diets were fed to four replicates with ten birds in each experimental unit and the basal diet fed to six replicates. in the second assay, each one of feedstuffs was fed to six cockerels, which were fed 15 g at 8:00 a.m. and 15 g at 4:00 p.m., after 24 hours fast. simultaneously six cockerels were fasted to determine the metabolic and endogenous losses. after the energy values determination, prediction equations were obtained to predict the amen with chicks and tmen with cockerels of soybean and soybean byproducts, based on the feedstuffs chemical composition. the energy values of soybean meals (1, 2, 3, 4, and texturized), full fat soybean jet sploder, toasted and micronized were 2337 and 2733; 2376 and 2818; 2469 and 2766; 2437 and 2881; 2833 and 2810; 3224 and 3775; 3400 and 4001; 4104 and 4441 kcal/kg of dry matter, respectively. the equations adjusted with two to four variables showed good predicton of energy values, with r2 higher than 92 %. prediction equations adjusted with crude fiber (cf) and ether extract (ee) variables can be used to predict the energy values of soybean and soybean byproducts being: amen = 2822.2 - 90.13fb + 49.96ee (r2 = 0,93) and emvn = 2857.3 - 38.29fb + 61.02ee (r2 = .98).
Aminoácidos digestíveis verdadeiros da soja e subprodutos, determinados com galos cecectomizados
Rodrigues, Paulo Borges;Rostagno, Horacio Santiago;Albino, Luiz Fernando Teixeira;Gomes, Paulo Cezar;Santana, Rodrigo Toledo;Nunes, Ricardo Vianna;
Revista Brasileira de Zootecnia , 2002, DOI: 10.1590/S1516-35982002000400021
Abstract: the digestibility coefficients and the true digestible amino acids content of soybean and soybean by-products were determined using cecectomized adult cockerels. each one of the 8 feedstuffs evaluated was fed to six cockerels, consuming 15 g at 8:00 a.m. and 15 g at 16:00h p.m., after 24 hours fasting. simultaneously, six cockerels were fasted to determine metabolic and endogenous losses. after determination of the digestibility coefficients and calculation of the digestible amino acids, prediction equations were simulated to predict the soybean and soybean byproducts total and digestible composition in lysine (lys), methionine (met), methionine plus cystine (met + cys), threonine (thr) and arginine (arg), as a function of the chemical composition (crude protein - cp, crude fiber - cf, ether extract - ee and ash). the average amino acids digestibility coefficient (essential and non essential) of soybean meal samples (1, 2, 3, 4 and texturized), full fat soybean jet sploder, toasted and micronized were 92,78 and 90,76; 92,66 and 89,70; 93,75 and 91,26; 93,32 and 90,12; 91,55 and 89,08; 94,80 and 92,34; 94,61 and 91,47; 93,20 and 90,47%, respetively. the prediction equations were adjusted with higher r2 values higher than 91%, and crude protein showed high positive correlation. the equations lys = -0.32161 + 0.06731pb (r2 = 0.99); met = 0.02263 + 0.01323pb (r2 = 0.96); met+cys = 0.078949 + 0.02563pb (r2 = 0.94); thr = 0.20930 + 0.03533pb (r2 = 0.95); arg = -0.39589 + 0.08022pb (r2 = 0.98) e lys = -0.29472 + 0.06319pb (r2 = 0.98); met = 0.02884 + 0.01228pb (r2 = 0.93); met+cys = 0.08974 + 0.02220pb (r2 = 0.91); thr = 0.15813 + 0.03235pb (r2 = 0.95) e arg = -0.32129 + 0.07681pb (r2 = 0.96), can be used to predict the total and digestible amino acids content of soybean and byproducts, respectively.
Valores Energéticos do Milheto, do Milho e Subprodutos do Milho, Determinados com Frangos de Corte e Galos Adultos
Rodrigues, Paulo Borges;Rostagno, Horacio Santiago;Albino, Luiz Fernando Teixeira;Gomes, Paulo Cezar;Barboza, Walter Amaral;Santana, Rodrigo Toledo;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000700015
Abstract: two metabolism assays were carried out in order to evaluate the aparent metabolizable energy (ame) and true metabolizable energy (tme) values of 11 feedstuffs (corn and corn byproducts and of the millet samples) by using the traditional method of excreta collection with growing chickens and the forced feeding method, by using adult cockerels (sibbald method). in the first assay, 540 male hubbard chickens fed the experimental diets in four replicates with ten birds in each experimental unit and the basal diet fed to six replicates. in the second assay, each one of 11 feedstuffs was fed to six cockerels, 15 g were fed at 8:00 a.m. and 15 g were fed at 4:00 p.m., after fastening by 24 hours. simultaneously six cockerels were fasted in order to determine the metabolic and endogenous nitrogen losses. after determination of amen and tmen values, prediction equations were simulated to predict the energetic values of the corn and corn byproducts, based on chemical composition. the amen and tmen of feed evaluated ranged from 1937 to 4108 and from 2246 to 4248 kcal/kg of dry matter, respectively. the results shown that millet should be one alternative feed to corn, with lower energetic value. the prediction equations adjusted with the variables neutral detergent fiber (ndf) or crude fiber (cf) and ash should be used to predict the energetic values of corn and corn byproducts, being amen = 4281.6 ? 39.97 ? 72.90ash (r2 = 0.96) or eman = 4354.8 ? 112.05cf ? 151.74ash (r2 = 0.95) and emvn = 4485.1 ? 34.20ndf ? 83.83ash (r2 = 0.94) or 4250.22 ? 136.60cf ? 120.48ash (r2 = 0.91).
Níveis dietéticos de lisina para frangos de corte de 1 a 21 e 22 a 40 dias de idade
Costa, Fernando Guilherme Perazzo;Rostagno, Horacio Santiago;Albino, Luiz Fernando Teixeira;Gomes, Paulo Cezar;Toledo, Rodrigo Santana;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000600016
Abstract: two experiments were carried out to determine the nutritional requirement of total lysine for ross broiler chickens from one to 21 and 22 to 40 days of age, of both sexes. the parameters evaluated were weight gain, feed intake, feed conversion and carcass evaluation. in each experiment, a completely randomized experimental design, in a 2 x 6 (two sexes and six dietary lysine levels) factorial arrangement with six replicates, using a total of 1440 birds, was used. the basal diets with 1.03% total lysine, 22.0% cp and 3000 kcal me/kg in the first experiment and 0.92% total lysine, 20.0% cp and 3150 kcal me/kg in the second experiment, suplemented with six levels pure lysine (0.0; 0.06; 0.12; 0.18; 0.24 and 0.30%), were used. considering weigth gain and feed conversion, the dietary requirement estimates for the experiment from 1 to 21 days were 1.303 and 1.249% total lysine and 1.183 and 1.129% digestible lysine for males and females, respectively. for the experiment from 22 to 40 days, the performance and evaluation carcass values were 1.164 and 1.143% total lysine and 1.044 and 1.023% digestible lysine for males and females, respectively.
Compara??o de valores de energia metabolizável de alimentos determinados com frangos de corte e com codornas visando à formula??o de dietas para codornas japonesas
Araujo, Marcelle Santana de;Barreto, Sergio Luiz de Toledo;Gomes, Paulo Cezar;Donzele, Juarez Lopes;Balbino, Eric Márcio;Valeriano, Matheus Henrique;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011000200015
Abstract: it was used 648 japanese quails with 91.1% of egg production in a completely randomized experiment design with nine replicates and eight birds per experimental unit. the diets were evaluated in a 3 × 3 factorial scheme (food × feed formulation) through bird performance measures and egg quality. the interaction among alternative food and formulation influenced feed intake. both performance and internal and external egg traits were not affected by food alternative. weight gain, laying rate, egg average weight, egg mass, feed conversion per mass and shell percentage varied according to the formulation. values of corrected apparent metabolizable energy of corn, sorghum, soybean meal and poultry by product meal, meat and fish bones determined in broilers and laying hens are not suitable for formulation of diets for japanese quails.
Composi??o química e valor energético de alimentos de origem animal utilizados na alimenta??o de codornas japonesas
Araujo, Marcelle Santana de;Barreto, Sergio Luiz de Toledo;Gomes, Paulo Cezar;Donzele, Juarez Lopes;Oliveira, Will Pereira de;Valeriano, Matheus Henrique;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011000200014
Abstract: it was evaluated the chemical composition and energy values of slaughterhouse by-product meal for male japanese quails (coturnix coturnix japonica). it was used 320 male quails at 32 days of age, distributed in a complete random experimental design, with five diets (one reference diet and four test diets), each one evaluated with eight replicates with eight birds per experimental unity. meals replaced 25% of the reference diet and their metabolizable energy values as well as their metabolizability coefficients were determined by using the total excreta method collection. values of apparent metabolizable energy (kcal/kg) and apparent energy corrected for nitrogen balance (kcal/kg) are, respectively, 2,152 and 2,142 for meat and bone meal; 3,139 and 3,137 for feather meal; 2,658 and 2,651 for fish meal and 3,692 and 3,668 for poultry viscera meal. metabolizability coefficients are 60.51% for meat and bone meal; 59.25% for feather meal; 64.09% for fish meal and 78.64% for poultry viscera meal.
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 fósforo disponível em dietas para codornas japonesas de 45 a 57 semanas de idade
Costa, Carlos Henrique Rocha;Barreto, Sergio Luiz de Toledo;Gomes, Paulo Cezar;Hosoda, Lúcia Heiko;Lipari, Carolina Abe;Lima, Heder José D'Avila;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011001000013
Abstract: an experiment was conducted aiming to verify the effect of different levels of available phosphorus (ap) in the diet on performance, egg quality, bone tissue and percentages of p, ca and mg in excreta produced by quails during the final third of the production cycle. a total of 300 japanese quails, with 313 days of age, was assigned to 30 experimental units of ten birds. a completely randomized design was used, with five levels of ap (0.15, 0.25, 0.35, 0.45 and 0.55%), with six replicates per treatments. the experimental diets were isoproteic (20.0% cp), isocaloric (2.900 kcal me/kg), isocalcium (3.0% ca) and isoaminoacidic. the increasing levels of ap in the diet linearly increased the concentration of ca and mg in the tibia; however, it linearly reduced the height of eggs analyzed. there was quadratic effect for specific gravity, weight and shell percentage, shell percentage of ca and p in the tibia, achieving maximum points with the use of 0.43, 0.41, 0.42, 0.27 and 0.42% ap, respectively. quadratic effects were also observed for excretion of ca, p and ash, yielding maximum values with the use of 0.34, 0.30 and 0.43% ap in the diet. for other parameters, there was no effect of dietary phosphorus. diet containing 0.15% ap satisfactorily meets the performance and maintenance of the physical integrity of the egg, in addition to reducing p excretion, without any loss caused by problems with egg shell nor occurrence of cage fatigue by weakening of the bone system, although there is reduction in the mineralization of the shell and bone tissue of japanese quail in the final third of the production cycle (45 to 57 weeks of age).
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