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Search Results: 1 - 10 of 347024 matches for " Maria de Fátima Freire Fuentes "
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Efeito da suplementa??o enzimática em ra??es à base de milho/farelo de soja sobre o desempenho de poedeiras comerciais
Freitas, Ednardo Rodrigues;Fuentes, Maria de Fátima Freire;Espíndola, Gast?o Barreto;
Revista Brasileira de Zootecnia , 2000, DOI: 10.1590/S1516-35982000000400022
Abstract: this experiment was conducted to study the effect of the inclusion of a commercial enzyme complex (alpha-amylase, xylanase and proteases) especific for corn and soybean meal based diets, on laying hens performance. one hundred and twenty eight hy-line white leghorns hens with 68 weeks of age, in the 2nd cycle of production were assigned to a completely randomized block design with four replications of four birds per block, totalizing 32 birds per treatment. two isonitrogenous diets with different levels of metabolizable energy (me) were formulated based on corn, soybean meal, wheat bran and supplemented or not with enzyme. the treatments were: t1 - diet with 2850 kcal me/kg; t2 - diet with 2850 kcal me/kg and 0.1% enzyme; t3 - diet with 2750 kcal me/kg; t4 - diet with 2750 kcal me/kg and 0.1% enzyme. the experiment was run for 112 days divided in four periods of 28 days each. the studied variables were: egg production (% hen/day), feed intake (g/bird per day), egg weight (g), feed:egg mass (kg feed/kg egg), weight gain (g) and feed cost. analysis of variance showed no effect of the enzyme supplementation on any of the studied variables. diets supplemented with enzyme at the evaluated levels did not affect laying hens performance.
Efeito da suplementa o enzimática em ra es à base de milho/farelo de soja sobre o desempenho de poedeiras comerciais
Freitas Ednardo Rodrigues,Fuentes Maria de Fátima Freire,Espíndola Gast?o Barreto
Revista Brasileira de Zootecnia , 2000,
Abstract: O experimento foi realizado com o objetivo de estudar o efeito do uso de um complexo enzimático comercial (alfa-amilase, xilanase e protease) específico para dietas à base de milho e farelo de soja sobre o desempenho de poedeiras comerciais. Cento e vinte e oito poedeiras da linhagem Hy-Line, com 68 semanas de idade e no segundo ciclo de postura, foram alojadas em um delineamento de blocos ao acaso com quatro repeti es de quatro aves por bloco, totalizando 32 aves por tratamento. Duas dietas isoprotéicas, porém com diferentes níveis de EM, foram formuladas à base de milho, farelo de soja, farelo de trigo e suplementadas ou n o com enzimas. Os tratamentos foram: T1 - dieta contendo 2850 kcal EM/kg; T2 - dieta contendo 2850 kcal EM/kg, com 0,1% enzima; T3 - dieta contendo 2750 kcal EM/kg; e T4 - dieta contendo 2750 kcal EM/kg, com 0,1% enzima. O experimento teve dura o de 112 dias, divididos em quatro períodos de 28 dias, e as variáveis estudadas foram: porcentagem de postura (ave/dia), consumo de ra o (g/ave/dia), peso dos ovos (g), convers o alimentar (kg de ra o/kg de ovo), ganho de peso das poedeiras (g) e custo com alimenta o (R$). A análise de variancia dos dados demonstrou que n o existiu efeito dos tratamentos sobre as variáveis estudadas. A suplementa o enzimática das dietas nos níveis estudados n o afetou o desempenho das poedeiras.
Composi o química e valores de energia metabolizável de subprodutos agroindustriais determinados com diferentes aves = Chemical composition and values of metabolizable energy of alternative feedstuffs determined with different birds
Roberto Batista Silva,Ednardo Rodrigues Freitas,Maria de Fátima Freire Fuentes,Irani Ribeiro Vieira Lopes
Acta Scientiarum : Animal Sciences , 2008,
Abstract: Este experimento foi conduzido com o objetivo de determinar a composi o química e os valores de energia metabolizável aparente (EMA) e aparente corrigida pelo balan o de nitrogênio (EMAn) do farelo da castanha de caju (FCC), do farelo de coco (FC)e de dois tipos de levedura da cana-de-a úcar (LEV1 e LEV2) para pintos, galos e codornas japonesas. Três ensaios de metabolismo foram realizados utilizando a metodologia de coleta total de excretas. Os tratamentos consistiram em uma ra o-referência e quatro ra es-teste(40% do subproduto e 60% da ra o-referência). Para todos os alimentos avaliados, os valores de EMA e EMAn determinados com codornas e galos foram superiores aos determinados com pintos. Para o FC e LEV2, os valores de EMA e EMAn obtidos com codornas foram inferiores aos obtidos com galos; entretanto, para o FCC, obtiveram-semaiores valores de EMA e EMAn com codornas. Independentemente do tipo de ave, os valores de EM determinados para a LEV1 foram superiores aos da LEV2. This experiment was conducted to determine the chemical composition and the values of apparent metabolizable energy (AME) and nitrogen-corrected apparent metabolizable energy (AMEn) of cashew nut meal (CNM), coconut meal (CONM) and two types of sugar cane yeast (SCY1 andSCY2) for chicks, roosters end Japanese quail. Three digestibility trials were carried out using the methodology of the total excreta collection. Treatments consisted of a referencediet and four test-diets (40% feedstuffs and 60% reference-diet). The values ofmetabolizable energy determined with Japanese quail and roosters were higher than those obtained with chicks. For CONM and SCY2, the AME and AMEn determined with Japanese quail were lower than those determined for roosters, but the highest values of AME and AMEn for CNM were obtained with Japanese quail. Regardless of the bird type,the SCY1 showed higher values of AME and AMEn than those of SCY2.
Alimenta??o de codornas de postura com ra??es contendo levedura de cana-de-a?úcar
Sucupira, Francislene Silveira;Fuentes, Maria de Fátima Freire;Freits, Ednardo Rodrigues;Braz, Nádia de Melo;
Ciência Rural , 2007, DOI: 10.1590/S0103-84782007000200036
Abstract: this experiment was carried out to evaluate the effects of diets containing different levels of sugar cane yeast (saccharomyces cerevisiae) on production performance of laying quails. two hundred and forty birds were distributed in a completely randomized design with six treatments (0, 3, 6, 9, 12 e 15% of sugar cane yeast) and eight replications of five quails. egg production and egg mass were not affected by treatments. feed intake and egg weight increased linearly as the level of sugar cane yeast increased in diets, while feed conversion decreased. percentages of egg albumen and egg yolk were not affected by diets. however a quadratic effect was found for shell percentage and egg yolk color. the sugar cane yeast can be included up to 11% in diets for laying quails.
Semente residual do urucum na alimenta o de poedeiras comerciais: desempenho e características dos ovos = Annato seed byproduct used as a source of pigment in laying hen diets
Nádia de Melo Braz,Maria de Fátima Freire Fuentes,Ednardo Rodrigues Freitas,Francislene Silveira Sucupira
Acta Scientiarum : Animal Sciences , 2007,
Abstract: O experimento foi conduzido para avaliar o efeito da inclus o da semente residual de urucum (SRU) sobre o desempenho e qualidade dos ovos de poedeiras comerciais alimentadas com ra es contendo sorgo. Cento e quarenta e quatro poedeiras comerciais foram distribuídas em um delineamento inteiramente ao acaso com seis tratamentos e seis repeti es de quatro aves. Os tratamentos consistiram em uma ra o àbase de milho e, as demais, à base de sorgo com a inclus o de 0,0; 0,5; 1,0;1,5 e 2,0% de SRU. As variáveis: consumo de ra o, percentagem de postura, peso e massa de ovo, convers o alimentar, percentagem de gema, albúmem e casca e unidades Haugh n o foramafetadas significativamente pelos níveis de inclus o de SRU. Entretanto, a pigmenta o da gema aumentou linearmente com o aumento de SRU na ra o. A inclus o de 2% de SRU em ra es contendo sorgo foi capaz de pigmentar as gemas em, aproximadamente, 61,4% da pigmenta o obtida em ra es compostas por milho. This experiment was conducted to evaluate the effect of inclusion of annatto (Bixa orellana L.) seed byproduct (ASB) in diets with sorghum on laying hens performance and eggs characteristics. A hundred and forty-four laying hens were randomly allotted to six treatments and six replications with four birds each. Treatments consisted of one diet based on corn and the five others based on sorghum with the inclusion of 0.0; 0.5; 1.0; 1.5 and 2.0% of ASB. Feed intake, egg production, egg weight, egg mass, feed conversion, yolk, albumen and shell percentages and Haugh units were not affected by the inclusion levels of ASB. However, yolk colour increased linearly as ASB increased in diet. The inclusion of 2% of annatto seed byproduct on laying hens diets based on sorghum improves egg yolk colour nearly 61.4% of that obtained with birds fed diet based on yellow corn.
Inclus o da levedura de cana-de-a úcar (Saccharomyces cerevisiae) em dietas para frangos de corte
Grangeiro Márcio Glayton Araújo,Fuentes Maria de Fátima Freire,Freitas Ednardo Rodrigues,Espíndola Gast?o Barreto
Revista Brasileira de Zootecnia , 2001,
Abstract: Um experimento utilizando 672 pintos machos de um dia de idade, da linhagem AGROSS, foi conduzido com o objetivo de estudar o efeito da inclus o da levedura de cana-de-a úcar (Saccharomyces cerevisiae), proveniente da indústria de aguardente, em dietas para frangos de corte. As aves foram distribuídas em um delineamento inteiramente casualizado, constituído de seis tratamentos com 112 aves/tratamento, sendo oito repeti es por tratamento com 14 aves cada. Os tratamentos constaram de seis dietas isoprotéicas (22 e 20% de proteína para as fases inicial e de engorda, respectivamente) e isocalóricas (3000 e 3150 kcal EM/kg, para as fases inicial e de engorda, respectivamente) formuladas à base de milho e farelo de soja e com níveis crescentes de inclus o de levedura de cana-de-a úcar (LCA). Os tratamentos utilizados foram os seguintes: T1 = Dieta basal (DB); T2 = DB + 1,5% LCA; T3 = DB + 3,0% LCA; T4 = DB + 4,5% LCA; T5 = DB + 6,0% LCA; T6 = DB + 7,5% LCA, totalizando seis níveis de inclus o de levedura. N o foi verificada diferen a significativa entre os tratamentos para as variáveis ganho de peso, consumo de ra o, convers o alimentar, rendimento de carca a, porcentagem de gordura abdominal e umidade da cama nas diferentes fases de cria o das aves. Pode-se concluir que é possível a inclus o de até 7,5% de LCA em dietas para frangos de corte, sem afetar o seu desempenho.
Utiliza??o de complexo enzimático em dietas à base de sorgo-soja para frangos de corte
Santos, Maria do Socorro Vieira dos;Espíndola, Gast?o Barreto;Fuentes, Maria de Fátima Freire;Freitas, Ednardo Rodrigues;Carvalho, Luiz Euquério de;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000300025
Abstract: the trial was conducted to evaluate the performance and morphologic changes of gastrointestinal tract and economic analysis for broilers fed sorghum-soybean meal-based diets, supplemented or not with multienzymatic complex (xilanase, amylase, protease), in the starting (experiment i) and finishing (experiment ii) phases. the experiment was analyzed as a randomized block design with a 3 x 2 factorial arrangement [three sorghum levels (0, 50, and 100%) x enzyme level (0 and 100%)]. the experimental unit was a box with 17 birds and eight replicates per treatment. in the experiment i (1 to 21 days), the sorghum-based diets did not affect feed intake, weight gain, and feed conversion. however, the increase of level sorghum decreased gizzard weight and of enzyme increased jejunum and ileum weights. in the experiment ii (22 to 42 days), the sorghum-based diets also did not affect broilers feed intake, weight gain, feed:gain ratio, and relative weights of duodenum, jejunum, ileum and caecum. increasing enzyme levels decreased significantly carcass yield and increased weights pf proventriculus, gizzard and pancreas. based on the economic analysis, it is suggested the corn replacement with sorghum of 50% for starting and finishing broilers.
Efeito da inclus?o do farelo de coco em ra??es para poedeiras comerciais
Braga, Carlla Vivianny de Paula;Fuentes, Maria de Fátima Freire;Freitas, Ednardo Rodrigues;Carvalho, Luiz Euquério de;Sousa, Francisco Milit?o de;Bastos, Silvana Cavalcante;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000100010
Abstract: an experiment was conducted to evaluate the effect of inclusion of coconut meal (cm) in diets for laying hens. two hundred and forty laying hens at 43 weeks of age were assigned to a randomized block design, with five treatments and eight replicates of six birds per treatment. the treatments consisted of five isoprotein (16.5% cp) and isocaloric (2,800 kcal me/kg) diets containing 0%, 5%; 10%; 15% and 20% cm. the experiment was carried out for 112 days and the variables studied were: feed intake (g/bird/day), egg production (%), egg weight (g), egg mass (g/bird/day), feed conversion (kg feed/ kg egg) and yolk color (roche color fan). birds feed intake decreased as cm increased in the diet. however this effect was significantly only among birds fed diets containing 0% and 20% cm. although not significantly egg production and egg mass decreased as cm level increased in diets. eggs yolk yellowness decreased linearly as cm increased in diets. coconut meal can be included in levels of up to 15% in laying hens diets along with a source of pigment, without affecting hen performance.
Efeito de níveis de proteína bruta e de energia metabolizável na dieta sobre o desempenho de codornas de postura
Freitas, Almir Chalegre de;Fuentes, Maria de Fátima Freire;Freitas, Ednardo Rodrigues;Sucupira, Francislene Silveira;Oliveira, Bruno César Moura de;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000300015
Abstract: this work was developed to evaluate the effect of different levels of crude protein (cp) and metabolizable energy (me) on the performance of laying quails. six hundred and seventy tywo japanese quails (coturnix coturnix japonica) from 42 days to 168 days of age were divided in six periods of 28 days each. the birds were assigned to a completely randomized design, with the treatments in a factorial arrangement of 4 x 4 (protein x energy), with six replication of seven birds per experimental unit. the levels evaluated were: 16, 18, 20 and 22% of crude protein and 2,585; 2,685; 2,785 and 2,885 kcal of metabolizable energy/kg of diet. the treatments did not showed significantly effect on the energy intake and egg production. however, the increase in energy level caused a linear reduction in feed intake, protein intake, egg weight and eggs mass; while, the increase in protein level caused a linear increase in daily intake of crude protein, eggs mass, feed conversion and variation in body weight of the birds and a quadratic effect on the egg weight. the estimated level of crude protein in the diet to obtain the maximum egg weight was 21,16%. it was concluded that japanese quails regulate feed intake according to the energy level of the diet. in order to obtain higher egg production and better feed conversion diets for laying quails the diets should contain 2,585 kcal me/kg and 18% crude protein. however, if the objective is to obtain heavier eggs, the protein level in the should increase to 21.16%.
Níveis de proteína bruta e energia metabolizável na ra??o para codornas de corte
Freitas, Almir Chalegre de;Fuentes, Maria de Fátima Freire;Freitas, Ednardo Rodrigues;Sucupira, Francislene Silveira;Oliveira, Bruno César Moura de;Espíndola, Gast?o Barreto;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000600018
Abstract: the effect of different cp (20, 22, 24, and 26% of cp) and me (2,565, 2,715, 2,865, and 3,015 kcal of me/kg. ) levels on the performance of meat quails was evaluated. seven hundred and sixty-eight european quails (coturnix coturnix coturnix) of both sexes from 1 to 42 days of age were assigned to a completely randomized design with 4 x 4 factorial arrangement (protein x energy) and grouped into three clusters with 16 birds each. no significant interaction among protein-energy and protein levels on feed intake, weight gain, feed:gain ratio and viability was observed. however, increasing the dietary energy level resulted in linear reduction of feed intake and greater weight gain and feed:gain ratio. feed intake of meat quails depends on the dietary energy level. diet containing 20% cp and 2,865 kcal me/kg account for better meat quail performance.
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