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Search Results: 1 - 10 of 132513 matches for " Elisanie Neiva Magalh?es;Jord?o Filho "
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Suplementa o da fitase em ra es com diferentes níveis de fósforo disponível para frangos de corte Phytase supplementation in diets with different levels for available phosphorus for broilers
Elisanie Neiva Magalhes Teixeira,José Humberto Vilar da Silva,Cláudia de Castro Goulart,José Jordo Filho
Revista Ciência Agron?mica , 2013,
Abstract: O estudo foi realizado com o objetivo de avaliar o efeito da suplementa o com fitase em dietas com diferentes níveis de fósforo disponível sobre o desempenho de frangos de corte de 22 a 42 dias. Foram utilizados 1.080 frangos Cobb-500, distribuídos em delineamento experimental inteiramente casualizado, em esquema fatorial (3 x 4) com três níveis de fósforo disponível (0,30; 0,40 e 0,50%) e quatro níveis de fitase (0; 500; 1.000 e 1.500 UF), totalizando 12 tratamentos, cada um com seis repeti es de 15 aves. As variáveis avaliadas foram: consumo de ra o, peso vivo, ganho de peso, convers o alimentar e as características de carca a. O peso vivo e ganho de peso n o foram influenciados pelos níveis de fósforo disponível e pela adi o de fitase na dieta. Houve intera o entre os níveis de fósforo disponível e os níveis de fitase para consumo de ra o e para convers o alimentar. Verificou-se melhor convers o alimentar nas aves alimentadas com dietas contendo 0,30% de fósforo disponível com 1.500 UF kg-1. Os níveis de fósforo disponível influenciaram os rendimentos da coxa e do dorso, onde o melhor resultado foi com 0,30 e 0,40%, respectivamente. Recomenda-se a utiliza o de dietas contendo 0,30% de fósforo disponível, suplementadas com 1.500 UF kg-1. The study was carried out with the objective of evaluating the effect of phytase supplements in feeds with different levels of available phosphorus on the performance of broilers from 22 to 42 days of age. We used 1080 Cobb-500 chickens distributed in a completely randomized design, in a 3 x 4 factorial scheme, with three levels of available phosphorus (0.30; 0.40 and 0.50%) and four levels of phytase (0; 500; 1,000 and 1,500 UF), totaling 12 treatments, each with six replications of 15 birds. The variables evaluated were: feed intake, live body weight, weight gain, feed conversion and carcass characteristics. Live body weight and weight gain were not influenced by the levels of available phosphorus or adding phytase to the diet. There was interaction between the levels of available phosphorus and phytase levels for feed intake and feed conversion. Better feed conversion was seen in birds fed on diets containing 0.30% available phosphorus at 1,500 UF kg-1. The available phosphorus levels affected the development of the thigh and the back, where the best results were from 0.30% and 0.40% respectively. The use of a diet containing 0.30% phosphorus, supplemented with 1500 UF kg-1 is recommended.
Inclus?o de ovo desidratado em ra??es para frangos de corte nas fases pré-inicial e de crescimento
Teixeira, Elisanie Neiva Magalhes;Silva, José Humberto Vilar da;Ribeiro, Marcelo Luís Gomes;Costa, Fernando Guilherme Perazzo;Jordo Filho, José;Araujo, Daniel de Magalhes;
Revista Brasileira de Zootecnia , 2008, DOI: 10.1590/S1516-35982008000700018
Abstract: the experiment was carried out to determine the optimum inclusion level of dried egg powder (degg) in the pre-initial and growing rations of broilers. male cobb-500 chicks (n= 1,152) with initial live weight of 43.46 ± 0.23 g were housed in cages of 1,0 × 1,5 m. a completely randomized design with four rations 0, (0.5, 1.0 and 1.5% of degg), each one with 18 replications of 16 birds. isoproteic and isoenergetic rations were used, with 21.9% cp and 2,950 kcal amen from 1 to 7 days old and 20.9% cp and 3,000 kcal amen from 8 to 21 days old. egg contents were dried at 55oc for 72 hours and were negative for salmonella spp. dried egg powder inclusion levels showed a quadratic effect on feed intake, live weight, weight gain and feed conversion. weight gain was obtained with the use of 0.53% dried egg powder in the ration in the pre-starter and 0.73% in the initial growth phase.
Inclus?o do ovo desidratado em ra??es peletizadas ou fareladas para frangos de corte
Teixeira, Elisanie Neiva Magalhes;Silva, José Humberto Vilar da;Costa, Fernando Guilherme Perazzo;Ribeiro, Marcelo Luís Gomes;Araujo, Daniel de Magalhes;Jordo Filho, José;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000600021
Abstract: the experiment was carried out to evaluate the effect of physical form diet (mash or pelleted) and inclusion of dehydrated egg (degg) up to 21 days of age on the performance and carcass characteristic of cobb-500 strain of broiler chicks at 42 days of age. the birds with average weight of 42.94 ± 0.51 g were allotted in pens of 1.0 x 1.5 m. the experimental design was completely randomized in factorial arrangment with two levels of degg (0 and 0.5%) and two physical form of diet (mash and pellet), resulting in four diets with 18 replicates of 16 birds during the phases from 1 to 7; 8 to 21; 22 to 33 and 34 to 42 days of age. the degg inclusion in the pre initial and initial diets did not influenced the performance, but the pelleted diet improved the performance of for broiler chicks up to 42 days. the pelleted diet also improved breast, pectoralis minor and fillet of breast yields in relationship to carcass weight, and increased the proventriculus and small intestine weights, while the mashed diet increased the gizzard weight.
Farelo de trigo na alimenta??o de poedeiras semipesadas na fase de recria
Araujo, Daniel de Magalhes;Silva, José Humberto Vilar da;Araujo, José Anchieta de;Teixeira, Elisanie Neiva Magalhes;Jordo Filho, José;Ribeiro, Marcelo Luís Gomes;
Revista Brasileira de Zootecnia , 2008, DOI: 10.1590/S1516-35982008000100009
Abstract: this study aimed to evaluate the effect of the inclusion of the wheat bran (wb) in the ration on egg brown chicken (lohmann brown) performance in the growing phase 1 (7 to 19 week of age) and growing phase 2 (15 to 19 week of age) and its residual effects on initial egg production. one hundred-sixty chickens were allotted to a completely randomized design with four level of wb in the ration: 0 (control), 10, 20 and 30%, that resulted in four treatments, with five replicates of eight birds in the growing phase 1. at the 14th week, the birds were transferred to galvanized wire cages and reallocated in six replicates of six birds each. a total of 144 birds were used and, randomly, four birds per treatment were discarding per treatment, constituting the growing phase 2. the addition of the wb linearly decreased the final body weight and the weight gain, resulting in decreasing of 1.15 g and 0.0 3g, respectively for each 1% of wb inclusion in the ration. water intake show a quadratic effect and increased in absolute values with the addition of wb from 0 to 30%. the birds age at the first egg production and egg weight increased 0.6 day and 0.22 g, respectively for each 1% of wb in the ration. the inclusion of wb reduces chickens growth rate, delays posture starting and improves egg initial weight when compared to corn and soybean meal based diets.
Suplementa??o da fitase em ra??es com diferentes níveis de fósforo disponível para frangos de corte
Teixeira, Elisanie Neiva Magalhes;Silva, José Humberto Vilar da;Goulart, Cláudia de Castro;Jordo Filho, José;Ribeiro, Marcelo Luís Gomes;
Revista Ciência Agron?mica , 2013, DOI: 10.1590/S1806-66902013000200023
Abstract: the study was carried out with the objective of evaluating the effect of phytase supplements in feeds with different levels of available phosphorus on the performance of broilers from 22 to 42 days of age. we used 1080 cobb-500 chickens distributed in a completely randomized design, in a 3 x 4 factorial scheme, with three levels of available phosphorus (0.30; 0.40 and 0.50%) and four levels of phytase (0; 500; 1,000 and 1,500 uf), totaling 12 treatments, each with six replications of 15 birds. the variables evaluated were: feed intake, live body weight, weight gain, feed conversion and carcass characteristics. live body weight and weight gain were not influenced by the levels of available phosphorus or adding phytase to the diet. there was interaction between the levels of available phosphorus and phytase levels for feed intake and feed conversion. better feed conversion was seen in birds fed on diets containing 0.30% available phosphorus at 1,500 uf kg-1. the available phosphorus levels affected the development of the thigh and the back, where the best results were from 0.30% and 0.40% respectively. the use of a diet containing 0.30% phosphorus, supplemented with 1500 uf kg -1 is recommended.
Efeitos da rela??o metionina + cistina: lisina sobre os desempenhos produtivo e econ?mico e a qualidade interna e externa dos ovos antes e após 28 dias de armazenamento
Jordo Filho, José;Silva, José Humberto Vilar da;Silva, Edson Lindolfo da;Araujo, Daniel de Magalhes;Ribeiro, Marcelo Luís Gomes;Lima, Matheus Ramalho de;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000600022
Abstract: the effect of different methionine + cystine (met+cis):total lysine (lis) ratios on performance and egg quality for semi-heavily laying hens was evaluated. one hundred and twenty lohmann brown hens with 44 weeks old were allotted to a completely randomized design with with five replicates and four treatments, as follows: t1= 0.76 met+cys:total lys ratio or 0.70% of met+cys and 0.92% of total lys; t2 = 0.83 met+cys: total lis ratio or 0.71% of met+cys and 0.85% of total lys; t3 = 0.85 met+cys: total lys ratio or 0.64% of met+cys and 0.75% of total lys; t4 = 0.86 met+cys: total lys ratio or 0.70% of met+cys and 0.81% of total lys. the performance variables and economical analysis were evaluated from 44 to 56 weeks old. at the end of trial, ten eggs per treatment were collected ad stored during 28 days for evaluation of internal/external egg quality before and after storage. with the exception of egg mass, no treatment effect on feed intake, egg production, egg weight and egg:mass ratio and egg:dozen ratio and egg shell specific quality was observed. the met+cys:lys ratio of 0.76 or the estimate of 0.70% of total met+cys and 0.92% of total lys can be recommended for the feeding of semiheavily laying hens. it was concluded that the storage affect internal egg quality.
Fra??es fibrosas da silagem de resíduo de manga com aditivos
Couto Filho, Cristov?o Colombo de Carvalho;Silva Filho, José Cleto da;Neiva Júnior, Arnaldo Prata;Souza, Ronan Magalhes de;Nunes, José Airton Rodrigues;Coelho, Jakelyne Viana;
Ciência e Agrotecnologia , 2010, DOI: 10.1590/S1413-70542010000300031
Abstract: this study was undertaken with the goal of evaluating the different fibrous fractions of mango residue silage in mixture with different additives at growing levels of addition. the experimental design used was the completely randomized, with three replicates, the treatments being arranged in a 4 x 3 + 1 factorial arrangement, the additives being four (ground ears with husks (gewh), bean straw (bs), corn cob (cc) and coffee hull (ch)) at three levels of addition (10, 20 and 30%) and a control treatment (ensiled unmixed mango residue). the experimental material was ensiled in pvc silos, fitted with a "bunsen" type valve, with a capacity of about 3 kg each. all the additives utilized raised the dm contents. the additives bs, cc and ch raised the contents of ndf, adf and cellulose. as regards hemicellulose contents, only the additive cc promoted increases with the rise of the levels of addition. a similar behavior was observed for the additive bs in relation to lignin. when gewh was used in different levels of addition the fibrous fractions decreased when compared to the control treatment, but the values obtained did not differ statistically. in a general way, the other additives increased the content of the fibrous fractions as well.
Qualidade da silagem de resíduo de manga com diferentes aditivos
Couto Filho, Cristov?o Colombo de Carvalho;Silva Filho, José Cleto da;Neiva Júnior, Arnaldo Prata;Freitas, Rilke Tadeu Fonseca de;Souza, Ronan Magalhes de;Nunes, José Airton Rodrigues;
Ciência e Agrotecnologia , 2007, DOI: 10.1590/S1413-70542007000500040
Abstract: with the objective to evaluate the quality of mango (mangifera indica l.) residue silage in mixture with different additives at growing levels of addition, this study was undertaken. the experimental design utilized was the completely randomized, with three replicates. the treatments were arranged in a factorial scheme (4 x 3) + 1 type and the additives being four (ground ears with husks (gewh), bean straw (bs), corn cob (cc) and coffee hull (ch)) at three levels of addition (10, 20 and 30%) and a control treatment (ensiled unmixed mango residue). the experimental material was ensiled in pvc silos, fitted with a "bunsen" type valve, with a capacity of about 3 kg each. all the additives utilized raised the dm contents of the silages. as the levels of addition of the additives were increased, there was a reduction in the values of buffering power (pt). the values of ph and ammoniac nitrogen (n-nh3 /%total n) were maintained within the indicative standard of a goof fermentative process. the fermentation standard of silages with additives was satisfactory with no damage in their quality. the additives gewh, bs or ch may be added to the process of ensiling the mango residue at the levels of addition of 20 or 30%, to improve its fermentative standard for silages of good quality.
Delineamento de experimentos em genética gen?mica
Rosa, Guilherme Jordo de Magalhes;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007001000019
Abstract: genetical genomics experiments combine information on phenotypic traits, molecular markers and gene expression to study the genetic mechanisms governing variation in complex traits. such studies can be used, for example, to estimate heritabilities of mrna transcript abundances, to map expression quantitative trait loci (eqtl), and to infer regulatory gene networks. microarray experiments, however, can be extremely costly and time consuming, which may limit sample sizes and statistical power. thus it is crucial to optimize experimental designs by carefully choosing the subjects to be assayed, and by cautiously controlling systematic factors affecting the system. also, a rigorous strategy should be used for allocating mrna samples across slides and dye labeling, so that effects of interest are not confounded with nuisance factors. in this presentation, we review some designs strategies for genetical genomics studies, including the selection of individuals for increased genetic dissimilarity and for a higher number of recombination events, as well as efficient microarray experiment layouts for various experimental goals.
Farelo de trigo e complexo enzimático na alimenta??o de poedeiras semipesadas na fase de produ??o
Araujo, Daniel de Magalhes;Silva, José Humberto Vilar da;Miranda, Edma Carvalho de;Araujo, José Anchieta de;Costa, Fernando Guilherme Perazzo;Teixeira, Elisanie Neiva Magalhes;
Revista Brasileira de Zootecnia , 2008, DOI: 10.1590/S1516-35982008000500010
Abstract: the study was carried out with the objective to evaluate the effects of the inclusion of the wheat bran (wb) with or without supplementation of an enzymatic complex (ec) on the performance of semi-heavy hens in the egg-production phase. a total of 288 lohmann brown pullets were used, distributed to a completely randomized design in 4 × 2 factorial arrangement, composed by four wb levels (0, 3, 6 and 9%) in the ration and enzymatic complex supplementation (0 or 100g/100 kg diet), with eight treatments and six replicates of six birds. the enzymatic complex contained the enzymes b-galactosidase, galactomananase, xilanase and a-glucanase. feed intake, final body weight, egg production, egg weight, egg mass, egg mass feed conversion or egg dozen feed conversion was not affected by wb inclusion in the diets. egg shell specific gravity deteriorated as wb levels increase in the diets. none of the characteristics was affected by the enzymatic complex supplementation, except for egg weight, that improved from 62.74 to 64.28 g. then, the use up to 9.0% of wheat bran in the ration is recommended for semi-heavily chickens in the production phase. the supplementation of a-galactosidase, galactomannanase, xylanase and a-glucanase improve egg weight.
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