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| Registros recuperados: 13 | |
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| Santos,AL; Sakomura,NK; Freitas,ER; Fortes,CMS; Carrilho,ENVM. |
| The present study was carried out to compare the growth curve, performance and carcass yield of two broiler strains, Paraíso Pedrês (PP) and ISA Label (ISA), raised in confined or semi-confined systems. It was used a completely randomized design with five replicates, consisting of 20 and 29 birds in semi-confined and confined systems, respectively. Semi-confined birds had free access to pasture at 28 days of age. Performance data were recorded weekly by building growth curves as well as calculating the growth rate. After reaching the recommended body weight (2.5 kg), male birds were slaughtered for physicochemical analysis of carcass, parts and organs. Semi-confined PP and ISA birds showed higher growth potential, higher weight gain, lower feed intake and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth curve; ISA Label; Meat quality; Paraíso Pedrês; Raising system. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000200004 |
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| Café,M B; Sakomura,NK; Junqueira,OM; Malheiros,EB; Del Bianchi,M. |
| O presente trabalho foi realizado com o objetivo de determinar a composição em aminoácidos e os coeficientes de digestibilidade dos aminoácidos da soja integral extrusada, tostada e do farelo de soja reconstituído de óleo. Foi utilizada a metodologia da alimentação forçada (Sibbad, 1976) com galos adultos. Para o cálculo dos coeficientes de digestibilidade dos aminoácidos das sojas testadas, foram consideradas as perdas endógenas e metabólicas obtidas de galos em jejum. Os dados médios de digestibilidade verdadeira de todos os aminoácidos testados foram de 91,1% para a soja extrusada, 78,6% para a soja tostada e 90,5% para o farelo de soja. Os resultados obtidos permitem concluir que a digestibilidade dos aminoácidos da soja integral tostada foi inferior a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Composição em aminoácidos; Digestibilidade de aminoácidos; Soja integral extrusada; Soja integral tostada. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2000000100009 |
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| Dourado,LRB; Sakomura,NK; Barbosa,NAA; Bonato,MA; Kawuauchi,IM; Fernandes,JBK; Costa,FGP. |
| Two metabolism assays were carried out to determine corn and soybean meal metabolizable energy when enzymes were added. In the first trial, 35 cockerels per studied feedstuff (corn and soybean meal) were distributed in a completely randomized experimental design with four treatments of seven replicates of one bird each. The evaluated treatments were: ingredient (corn and soybean meal) with no enzyme addition, with the addition of an enzyme complex (xylanase, amylase, protease - XAP), xylanase, or phytase. Precise feeding method was used to determine true metabolizable energy corrected for nitrogen balance (TMEn). The use of enzymes did not result in any differences (p>0.05) in soybean meal TMEn, but phytase improved corn TMEn in 2.3% (p=0.004). In the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amylase; Forced feeding; Phytase; Protease; Xylanase. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000100008 |
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| Café,MB; Sakomura,NK; Junqueira,OM; Carvalho,MRB; Del Bianchi,M. |
| Três ensaios biológicos foram realizados com o objetivo de determinar o conteúdo de energia metabolizável e do coeficientes de digestibilidade do extrato etéreo da soja integral processada por diferentes métodos (extrusão e tostagem) e do farelo de soja reconstituído com óleo. No primeiro e segundo ensaios, foram utilizadas a metodologia tradicional de coleta total de excretas, utilizando pintos no primeiro ensaio e galos no segundo. No terceiro ensaio, empregou-se a metodologia de alimentação forçada (Sibbald, 1976) com galos adultos. De acordo com os resultados obtidos, as sojas testadas apresentaram composições bromatológicas semelhantes. Os processamentos usados para a soja integral conferiram diferenças na digestibilidade dos nutrientes da soja e os... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestibilidade; Energia metabolizável; Soja integral; Soja extrusada; Soja tostada. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2000000100010 |
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| Siqueira,JC; Sakomura,NK; Dourado,LRB; Ezequiel,JMB; Barbosa,NAA; Fernandes,JBK. |
| Two experiments were carried out to compare two techniques (amino acid supplementation and dilution) for formulating experimental diets for pre-starter (1 to 8 days) and starter (8 to 22 days) broiler chicks and to estimate digestible lysine requirements using the dose-response method. In each experiment, 1,200 male Cobb 500 chickens were randomly distributed according to a 5x2 factorial arrangement (lysine level x formulation technique) with six replicates of 20 birds each. For the supplemented diet, a basal diet was formulated to meet the nutritional requirements, then L-lysine HCl was added to achieve digestible lysine levels of 0.975, 1.082, 1.189, 1.296 and 1.403% in the pre-starter diets and 0.840, 0.932, 1.024, 1.116 and 1.208% in the starter diets.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broilers; Diet formulation; Dose-response; Lysine; Performance. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000200008 |
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| Sousa,RF; Dourado,LRB; Lopes,JB; Fernandes,ML; Kato,RK; Nascimento,DCN; Sakomura,NK; Lima,SBP; Ferreira,GJBC. |
| ABSTRACT The present study was conducted to evaluate the performance, carcass yield, and histomorphometry of the small intestine of broilers fed yeast sugarcane supplemented with enzymatic blend from 22 to 42 days of age. Seven hundred broiler chicks were distributed in a completely randomized design in a factorial design (2x3+1), two levels of the enzyme blend (0 and 200 g/ton), three protein levels (0%, 6% and 12%) and a control diet. The level of 6% yeast showed higher feed intake and weight gain after 33 days. From 22 to 42 days there was no significant effect (p<0.05) to the use of yeast in animal performance, carcass yield and cuts. At 42 days an interaction between the factors for width and crypt depth in the duodenum and jejunum, respectively,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cane sugar; Microscopy; Metabolism; Saccharomyces cerevisiae; Xylanase. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000200300 |
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| Sakomura,NK; Barbosa,NAA; Longo,FA; Silva,EP da; Bonato,MA; Fernandes,JBK. |
| The objective of this study was to evaluate the effect of betaine in methionine- and choline-reduced diets fed to broilers submitted to heat stress. In total, 1,408 male broilers were randomly distributed into eight treatments, according to 2 x 4 (environment x diet) factorial arrangement, with eight replicates of 2 birds each. Birds were reared environmental chambers under controlled temperature (25-26 °C) or cyclic heat-stressing temperature (25-31 °C). The following diets were tested: positive control (PC), formulated to meet broiler nutritional requirements; negative control (NC), with reduced DL-methionine and choline chloride levels; and with two supplementation levels of natural betaine to the negative control diet (NC+NB1 and NC+NB2). Live... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additives; Environment; Methionine; Temperature. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000200005 |
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| Carneiro,MIF; Sakomura,NK; Malheiros,EB; Araújo,JA; Silva,EP da; Kawauchi,IM; Fernandes,JBK; Sousa,JRST de. |
| Studies were conducted to evaluate the nutritional value and inclusion levels of babassu meal (BM) in the diet of grower layer pullets in substitution to wheat meal. Digestibility, metabolism and growth trials were conducted. Twelve cecectomized roosters were used in the digestibility assay to determine the coefficients of standardized digestibility of amino acids (CSDAA). The metabolism trial was conducted with 30 adult roosters to determine the apparent metabolizable energy corrected for nitrogen (AMEn) of BM. A growth trial was performed to determine replacement levels of wheat midds by BM diet using 360 six-week-old commercial layer pullets. BM was included at the 0, 75 and 150 g/kg of BM, during grower and development rearing phases, respectively.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative feedstuffs; Nutritional composition; Digestibility; Performance. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000200011 |
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| Marcato,SM; Sakomura,NK; Munari,DP; Fernandes,JBK; Kawauchi,ÍM; Bonato,MA. |
| The objective of this work was to study growth and body nutrient deposition profiles of male and female Cobb and Ross broilers using Gompertz equations. A total number of 1,920 one- to 56-day-old broilers were used. A randomized experimental design in a factorial arrangement (2 strains x 2 sex), with 4 replicates of 120 birds each, was applied. Diets were formulated to supply the nutrient requirements recommended by the genetic companies. A sample of birds was weekly weighed and sacrificed after 24 hours fasting. Carcasses were de-feathered and weighed again. The parameters of the Gompertz equation for body weight and its components (water, ashes, protein, and fat) were estimated. An interaction (p<0.05) between sex and breed was observed for mature... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body composition; Broilers; Growth; Gompertz curves. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000200007 |
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| Neme,R; Sakomura,NK; Fialho,FB; Freitas,ER; Fukayama,EH. |
| Three trials were carried out to determine energy metabolized (EM) requirement model for starting and growing pullets from different strains, at five ambient temperatures and different percentage feather coverage. In Trial I, metabolizable energy requirements for maintenance (MEm) and efficiency of energy utilization were estimated using 64 birds of two different strains, Hy-Line W36 (HLW36) and Hy-Line Semi-heavy (HLSH), from 9 to 13 weeks of age. The effects of ambient temperature (12, 18, 24, 30 and 36ºC) and percentage feather coverage (0, 50 and 100%) on MEm were assessed in the second trial, using 48 birds per temperature per strain (HLSH and HLW36) from 9 to 13 weeks of age. Trial III evaluated ME requirements for weight gain (MEg) using 1,200 birds... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body composition; Energy requirements; Feather coverage; Laying hens; Model; Temperature. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000100007 |
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| Dourado,LRB; Siqueira,JC; Sakomura,NK; Pinheiro,SRF; Marcato,SM; Fernandes,JBK; Silva,JHV. |
| The aim of this work was to compare the efficiency of total (TC) or partial (PC) collection excreta methods to determine metabolizable energy in poultry feeds. A number of 180 12- to 21-day-old broilers were distributed into two treatments of six replicates of 10 birds each. A reference-diet was formulated to supply broiler requirements, and the test-diets consisted of 60% of reference diets and 40% of corn or soybean meal. Celite was added at 1% to the diets as a marker. Excreta and diet samples were analyzed for dry matter, energy, nitrogen, and acid-insoluble ash (AIA). AME of corn determined by partial collection (PC) was higher (3544 kcal/kg) as compared to total collection (TC) (3133 kcal/kg). However, no difference were observed for soybean meal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acid insoluble ash; AIA; Broiler; Digestibility; Marker; Partial collection method. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000200010 |
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| Faria Filho,DE; Sakomura,NK; Junqueira,OM; Jacob,DV; Angelo,JC. |
| Foi conduzido um experimento com o objetivo de avaliar os efeitos da utilização de trigo em grão ou moído sobre o desempenho e as características de carcaça de frangos de corte nos períodos de 21 a 42 e 21 a 49 dias de idade. Foram utilizados 2240 machos, de 21 dias de idade, da linhagem Ross, distribuídos em um delineamento inteiramente ao acaso em esquema fatorial 2 x 3 mais uma testemunha sem inclusão de trigo, sendo os fatores a forma física do trigo (grão e moído) e os níveis de inclusão de trigo (15, 30 e 45%), totalizando sete tratamentos, com oito repetições de 40 aves cada. As dietas foram isoenergéticas e isonutricionais. Não ocorreram diferenças estatísticas entre os fatores estudados, assim como não ocorreram interações entre os fatores sobre... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Desempenho; Forma física do trigo; Frangos de corte; Rendimento de carcaça; Trigo. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000200006 |
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| Registros recuperados: 13 | |
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