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Search Results: 1 - 10 of 113270 matches for " Edwiney Sebasti?o; "
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Níveis nutricionais de cobre para frangos de corte machos e fêmeas na fase inicial
Schmidt, Marlene;Gomes, Paulo Cezar;Rostagno, Horacio Santiago;Albino, Luiz Fernando Teixeira;Cupertino, Edwiney Sebastio;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000500021
Abstract: three hundred and eighty-four birds, half males and half females, were used to determine the copper (cu) requirement for broilers in the initial phase (from 8 to 21 days). a basal diet was formulated to meet the bird nutritional requirements, except for cu, that was deficient at 1.47 ppm level. the treatments consisted of cu supplementation levels, from cu sulfate, in a total of 1.47, 4.97, 8.47, 11.97, 15.47 and 18.97 ppm cu in the diet. weight gain, feed intake, feed:gain ratio and cu concentration in the bone, liver and serum were evaluated. the studied cu levels affected feed intake, but did not alter weight gain and feed:gain ratio. no effects of cu levels on cu concentration in the bone were detected. effects of increasing dietary cu levels on cu concentration in the liver and serum were observed. however, the most adequate value of cu requirement was estimated in the serum, because it better represents the cu nutricional status in the animal organism. it was concluded that cu requirements for broilers, males and females, from 8 to 21 days old is of 9.48 ppm, considering that corn and soybean meal-based diets, for broilers, contain from 8.5 to 11 ppm cu and that cu bioavailability in the soybean meal of 38%.
Exigência nutricional de lisina digestível para poedeiras semipesadas no segundo ciclo de produ??o
Schmidt, Marlene;Gomes, Paulo Cezar;Rostagno, Horacio Santiago;Albino, Luiz Fernando Teixeira;Nunes, Ricardo Vianna;Cupertino, Edwiney Sebastio;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009001000014
Abstract: with the objective of determining the nutritional requirement of digestible lysine for brown-egg laying hens from 79 to 95 weeks of age, an experiment was carried out using 180 commercial lohmann brown laying hens, distribuited in five treatments (0.555; 0.605; 0.655; 0.705 and 0.755%), six replications and six birds birds/replication. the feed intake and the food conversion per dozen of eggs were not influenced by the lysine levels. there was a positive linear effect on lysine intake and quadratic on feed conversion for egg mass. egg mass and weight presented a quadratic response to the lysine levels. the egg component percentage and the internal quality were not influenced by the levels of lysine, except for the yolk index, which showed quadratic effect. the digestible lysine requirement for brown-egg laying hens on the 2nd production cycle of production was 0.681% lysine, that corresponds to a daily intake of 783 mg digestible lysine.
Exigências de manganês para frangos de corte nas fases de crescimento e termina??o
Cupertino, Edwiney Sebastio;Gomes, Paulo Cezar;Albino, Luiz Fernando Teixeira;Rostagno, Horacio Santiago;Cecon, Paulo Roberto;Schimidt, Marlene;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000700017
Abstract: four hundred and eighty broilers were assigned to a completely randomized design with a 6x2 arrangement (six levels of manganese and 2 sexes - male and female) and four replicates to determine the manganese requirements in the growing (22 to 42 days) and finishing (43 to 54 days) phases. six and four birds per experimental unit, respectively, were used in the first and second trials. in both trials, the treatments consisted of a basal diet deficient in manganese (6.5 ppm) or supplemented with manganese (0, 30, 60, 90, 120, and 150 ppm) from the commercial sulfate. the following variables were analyzed: weight gain, feed intake, feed conversion, tibia length, resistance of bone to breaking, and manganese concentration in the liver and bone. the levels of manganese influenced the manganese concentration in the liver and bone in the growing phase and the manganese concentration in the liver in the finishing phase. the manganese requirements were estimated by the polynomial regression models and lrp (linear response plaeau). the manganese requirement was estimated in 90 ppm for male and female broilers in the growing phase. in the finishing phase, the levels from 30 to 40 ppm of manganese is recommended to obtain good results of performance for birds fed corn and soybean meal-based diets.
Exigências nutricionais de treonina digestível para poedeiras semipesadas no segundo ciclo de produ??o
Schmidt, Marlene;Gomes, Paulo Cezar;Rostagno, Horacio Santiago;Albino, Luiz Fernando Teixeira;Nunes, Ricardo Vianna;Cupertino, Edwiney Sebastio;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000500021
Abstract: the objective of this work is to determine the nutritional requirement of digestible threonine for brown-egg laying hens between 79 to 95 weeks of age. for this experiment, 180 commercial lohmann brown laying hens were used, distributed in five digestible threonine levels (0.380; 0.413; 0.446; 0.479 and 0.512%), each one with six replicates and six hens/replicate. it was observed a quadratic effect of threonine levels on the feed intake, egg mass conversions, egg dozen conversions, egg production, egg weight, and egg mass. the digestible threonine intake increased linearly in function of diet threonine levels. it was not observed effect of diet threonine levels for weight gain, yolk index, albumen index, shell percentage, yolk percentage and albumen percentage, except for the haugh units, which increased in a quadratic way according to digestible threonine levels in the feed. regarded to the food conversion per egg dozen, the requirement of digestible threonine for commercial hens in the period between 79 to 95 weeks of age is 0.467%, which corresponds to an intake of 462 mg threonine/hen/day.
Exigência nutricional de metionina+cistina digestíveis para galinhas poedeiras de 54 a 70 semanas de idade
Cupertino, Edwiney Sebastio;Gomes, Paulo Cezar;Rostagno, Horacio Santiago;Donzele, Juarez Lopes;Schmidt, Marlene;Mello, Heloisa Helena de Carvalho;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009000700012
Abstract: this research was carried out using 360 laying hens (180 lohmann lsl and 180 lohmann brown), to establish the nutritional requirement of digestible methionine+cystine in the period from 54 to 70 weeks of age. a completely randomized experimental design, in a 5 × 2 factorial arrangement (5 levels of digestible methionine+cystine and 2 laying hen strain), with 6 replications and 6 hens per experimental unit, was used. the treatments consisted of diets supplemented with 5 levels of dl-methionine (98%), resulting in 0.492, 0.544, 0.596, 0.648 and 0.700% of digestible methionine+cystine in diets. the parameters analyzed were: egg production, egg weight, egg mass, feed intake, digestible methionine+cystine intake, feed conversion, egg components (albumen, yolk and shell), internal quality (haugh unit, albumen index and yolk index), the percentage of eggs does not trade and the body weight gain. the levels of methionine+cystine digestibles studied influenced the egg production, egg weight, egg mass, feed intake, digestible methionine+cystine intake, feed conversion, weight yolk and shell, and the body weight gain. the requirements of digestible methionine+cistine were estimated by polynomial regression models. the digestible methionine+cystine requirement, estimated for the laying hens light-weight was of 0.645% in the ration, corresponding to daily intake per hen of 712 mg and 12.5 g of methionine+cystine digestibles/g egg mass produced. for the laying hens semi-heavy was of 0.655% in the ration, corresponding to daily intake per hen of 723 mg and 13.2 g of methionine+cystine digestibles/g egg mass produced.
Níveis nutricionais de cobre para frangos de corte machos e fêmeas nas fases de crescimento e termina??o
Schmidt, Marlene;Gomes, Paulo Cezar;Albino, Luiz Fernando Teixeira;Rostagno, Horacio Santiago;Cecon, Paulo Roberto;Cupertino, Edwiney Sebastio;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000300022
Abstract: two experiments, with 288 and 196 birds, half males and half females, respectively, were carried out to determine the copper (cu) requirements for broilers in the growing (from 22 to 42 days) and finishing (from 43 to 54 days) phases. two basal diets were formulated to meet the bird nutritional requirements, except for cu, that was deficient at the levels of 1.40 and 1.33 ppm, respectively. the treatments of both experiments consisted of the cu supplementation levels, from cu sulfate, resulting in a total of 1.40, 4.90, 8.40, 11.90, 15.40 and 18.90 ppm cu in the diet for the growing of phase and 1.33, 4.83, 8.33, 11.83, 15.33 and 18.33 ppm cu in the finishing phase. average weight gain, feed intake, feed:gain ratio and cu concentration in the bone, liver and serum were the evaluated variables. copper levels, in the both phases, did not affect bird performance and cu concentration in the bone. however, effect on the cu concentration in the liver and serum was observed in the growing phase. in the finishing phase, cu levels affected only cu concentration in the liver. in the growing phase, was choosen the requirement value estimated by the variable cu concentration in the serum, which was 11.1 ppm. in the finishing phase, levels of 8.5 to 11 ppm, commonly present in corn and soybean meal based diets, are adequate to animal performance.
Exigência nutricional de lisina digestível para galinhas poedeiras de 54 a 70 semanas de idade
Cupertino, Edwiney Sebastio;Gomes, Paulo Cezar;Albino, Fernando Teixeira;Donzele, Juarez Lopes;Mello, Heloisa Helena de Carvalho;Schmidt, Marlene;Calderano, Arele Arlindo;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009000300012
Abstract: an experiment was performed to determine the dietary digestible lysine requirement of hens (lohman lsl and lohman brown) from 54 to 70 weeks of age. three hundred and sixty hens were randomly assigned to 5 × 2 factorial arrangement (lys levels by hen strain), according to the dietary treatments withj six replicates (groups) of 6 birds. an experimental diet was formulated to contain deficient digestible lysine levels in order to be supplemented with lysine (l-lys-hcl,78%) originating the five dietary treatments (0.555; 0.605; 0.655; 0.705 and 0.755% of digestible lysine). the parameters analyzed were egg production, egg weight, egg mass, feed intake, lysine intake, feed conversion, albumen weight, yolk weight and shell weight, haugh unit, albumen index and yolk index, percentage of non-commercial eggs and body weight gain. there was linear effect of lysine levels to light laying hens on feed intake, lysine intake, yolk index, albumen weight, yolk weight and quadratic effect on egg production, egg weight, egg mass, feed conversion and shell weight. for brown-type laying hens, there was linear effect of lysine levels on lysine intake and egg weight and quadratic effect on egg production, egg mass, feed conversion and shell weight. the digestible lysine requirements were estimated through polynomial regression models. estimates of digestible lysine requirements were calculated as 0.724 and 0.692% for light laying hens and brown-type laying hens, respectively, which corresponds to 784 and 748 mg/hen/day and 14.9 and 14.5 g of digestible lysine/g egg mass produced, in the period from 54 to 70 weeks of age.
Níveis nutricionais de treonina digestível para poedeiras comerciais durante o segundo ciclo de postura
Cupertino, Edwiney Sebastio;Gomes, Paulo Cezar;Vargas Junior, José Geraldo de;Albino, Luiz Fernando Teixeira;Schmidt, Marlene;Mello, Heloisa Helena de Carvalho;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000900018
Abstract: an experiment was carried out to estimate the optimum level of digestible threonine for white-egg and brown-egg laying hens in the second laying cycle. it was used 360 laying hens, 180 were white-egg and 180 were brown-egg laying hens which were distributed in a complete randomized design in 5 x 2 factorial arrangement (5 levels threonine x 2 lines of laying hens). the levels of digestible threonine used were the following: 0.380, 0.413, 0.445, 0.478 and 0.511%. it was evaluated performance data (production, egg weight and mass), egg components (albumen, yolk and shell), egg internal quality (haugh units, albumen and yolk indexes) and percentage of non-commercial eggs and body weight parameters. through the obtained results, it was estimated for white-egg laying hens, levels of digestible threonine of 0.446%, which matches a daily intake of 487 mg/hens and a lysine: threonine relationship equal to 68; for brown-egg laying hens, the estimate level of digestible threonine was 0.465% with a daily intake of 505 mg/hens and a lysine: threonine relationship of 71. by comparing the relationship mg digestible threonine per gram of produced eggs, values of 9.5 and 10.0 mg threonine/gram egg are estimate; gram of produced egg.
Níveis nutricionais de cálcio e de fósforo disponível para aves de reposi??o leves e semipesadas de 7 a 12 semanas de idade
Vargas Junior, José Geraldo de;Albino, Luiz Fernando Teixeira;Rostagno, Horacio Santiago;Gomes, Paulo Cezar;Cupertino, Edwiney Sebastio;Carvalho, Débora Cristine de Oliveira;Silva, Marcelo Aparecido da;Pinto, Rogério;
Revista Brasileira de Zootecnia , 2004, DOI: 10.1590/S1516-35982004000400014
Abstract: four experiments were carried out using white-egg pullets and brown-egg pullets in two different phases, growth phase (7 to 12 age weeks) and production phase (20 to 28 age weeks), with objective to determine requirements of calcium and available phosphorus and the effects of levels calcium e available phosphorus in production. chickens from 13 to 19 weeks age were identified for treatment and fed only commercial diet. for each experiment, the chickens were allotted in a completely randomized design with five calcium levels (0.60, 0.70, 0.80, 0.90, and 1.00%) or five level available phosphorus (0.25, 0.30, 0.35, 0.40, and 0.45%), four replicates and 16 pullets/eu for the growth phase and 8 chickens/eu for the production phase. the characteristics evaluated for the growth phase were weight gain, feed intake, feed: gain ratio, bone resistance, ash and bone calcium (calcium experiments) or bone phosphorus (experiments phosphorus), while for the egg production phase were evaluated ration consumption, eggs production, egg weight, egg mass and feed conversion (g ration/g egg and kg of ration/dozen of egg). calcium requirements of 0.834% or 406 mg/pullets/day for white egg pullets and 0.815% or 440 mg/pullets/day for brown eggs pullets were estimated and for available phosphorus, requirements of 0.411% or 200 mg/pullets/day for white egg pullets and 0.361% or 184 mg/pullets/day for brown eggs pullets were estimated.
Níveis nutricionais de cálcio e de fósforo disponível para aves de reposi??o leves e semipesadas de 13 a 20 semanas de idade
Vargas Junior, José Geraldo de;Albino, Luiz Fernando Teixeira;Rostagno, Horacio Santiago;Gomes, Paulo Cezar;Carvalho, Débora Cristine Oliveira;Cupertino, Edwiney Sebastio;Toledo, Rodrigo Santana;Pinto, Rogério;
Revista Brasileira de Zootecnia , 2004, DOI: 10.1590/S1516-35982004000500019
Abstract: four experiments were accomplished, where two for determine requirements calcium (whit- egg pullets and brown- egg pullets) and two for determine available phosphorus (white-egg pullets and brown-egg pullets). two different phases (growing and production) were used for each experiment, where the chickens were allotted to a completely randomized design with five calcium levels (.55, .65, .75, .85, and .95%) or five available phosphorus levels (.20, .25, .30, .35, and .40%), four replicates and 12 pullets/eu for the growth phase (13 to 20 weeks of age) and eight chickens/eu for the production phase (20 to 28 weeks of age). weight gain, feed intake, feed: gain ratio, bone resistance, ash and bone calcium (calcium experiments) or bone phosphorus (phosphorus experiments) were evaluated in the growing phase. feed intake, egg production, egg weight, egg mass and feed conversion (g ration/g egg and kg of ration/ dozen of egg) were evaluated in the egg production phase. calcium requirements of .832% or 634 mg/pullets/day for white-egg pullets and .782% or 605 mg/pullets/day for brown-egg pullets were estimated, and for available phosphorus requirements of .270% or 219 mg/pullets/day for white-egg pullets and .311% or 255 mg/pullets/day for brown-egg pullets.
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