Consulta: creatorFacets:"Junqueira,OM"
Registros recuperados: 28
Data/hora: 02/06/2024 15:44:46

Pearl millet utilization in ccommercial laying hen diets formulated on a total or digestible amino acid basis
Provedor de dados: 89
Autores: Filardi,RS; Junqueira,OM; Casartelli,EM; Laurentiz,AC; Duarte,KF; Assuena,V.
An experiment was carried out to evaluate the effect of replacing corn with pearl millet in commercial layer diets, formulated according to the minimal requirements for total and digestible amino acids. Two hundred and forty Lohmann LSL laying hens with 25 weeks of age were distributed in a completely randomized experimental design according to a 2 x 5 factorial arrangement with 3 replicates of 8 birds. Feed was formulated on two amino acid basis (total or digestible) according to Rostagno et al. (2000) and there were five pearl millet inclusion levels (0%, 25%, 50%, 75%, and 100%). Performance and egg quality were evaluated during five periods of 21 days.At the end of each period, feed intake, egg production, egg weight and feed conversion were evaluated....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestible amino acids; Egg quality; Laying hens; Pearl millet; Performance; Total amino acids.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000200006

Effect of dietary phytase suplementation on the performance, bone densitometry, and phosphorus and nitrogen excretion of broilers
Provedor de dados: 89
Autores: Assuena,V; Junqueira,OM; Duarte,KF; Laurentiz,AC; Filardi,RS; Sgavioli,S.
This experiment was carried out to evaluate the effects of the inclusion of different levels of phytase on broiler performance, bone densitometry, and phosphorus and nitrogen excretion. Nine hundred and sixty one-day old broilers, 50% males and 50% females, were distributed in a completely randomized experimental design into five treatments and six replicates 32 birds each. The treatments consisted of a control diet and four diets with the addition 25, 50, 75, and 100 g/ ton of phytase (250, 500, 750 and 1000 FTU of phytase/kg fed). Diets were formulated to contain equal nutritional levels, and considered the phytase product nutritional levels. In general, the addition of phytase resulted in a linear decrease in broiler performance. However, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bone mineralization; Feed conversion ratio; Feed intake; Weight gain.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000100005

High-fiber diets with reduced crude protein for commercial layers
Provedor de dados: 89
Autores: Praes,MFFM; Junqueira,OM; Pereira,AA; Filardi,RS; Duarte,KF; Sgavioli,S; Alva,JCR; Domingues,CHF.
This study aimed at evaluating diets containing different fiber sources and two crude protein levels on the performance, egg quality, and nitrogen metabolism of commercial layers. In total, 392 48-wk-old Isa Brown layers were distributed according to a completely randomized experimental design in a 3x2+1 (control) factorial arrangement, resulting in seven treatments with seven replicates of eight birds each. Treatments consisted of three fiber feedstuffs (cottonseed hulls, soybean hulls, and rice hulls) and two dietary crude protein levels (12% and 16%). Cottonseed hulls associated with the high crude protein level (16%) resulted in the worst feed conversion ratio per dozen eggs. Diets with 16% crude protein resulted in the highest feed intake, egg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rice hulls; Cottonseed hulls; Soybean hulls; Crude protein; Egg production.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000200006

Different criteria of feed formulation for broilers aged 43 to 49 days
Provedor de dados: 89
Autores: Araújo,LF; Junqueira,OM; Araújo,CSS; Faria,DE; Andreotti,MO.
An experiment was carried out to evaluate different formulated feeds for broilers from 43 to 49 days of age. Six hundred male Cobb broilers were distributed in a completely at random experimental design with 3 treatments (3 different criteria of feed formulation) and 4 repetitions per treatment, with 50 birds each. Diets were formulated with different criteria of digestible amino acid inclusion (methionine, methionine+cystine, lysine and threonine), according to the profiles recommended by Baker and Chung (1992), Degussa (1997) and Rostagno (2000) Live performance and carcass yield were evaluated in birds fed the different diets from 43 to 49 days of age). The profile established by Degussa (1997) resulted in best live performance. All profiles supplied...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broilers; Carcass yield; Digestible amino acids; Performance.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000100008

Effects of Laser Beak Trimming on the Development of Brown Layer Pullets
Provedor de dados: 89
Autores: Petrolli,TG; Petrolli,OJ; Girardini,LK; Zotti,MLAN; Baggio,RA; Junqueira,OM.
ABSTRACT Laser beak trimming is a promising alternative to conventional hot-blade beak trimming as it is less painful and provides better beak uniformity and better animal welfare. In this study, laser vs. hot-blade beak trimming were compared in 400 Hy-line Brown pullets between 2-16 weeks of age. At 7 days of age, birds were distributed according to a completely randomized design into two treatments, with 10 replicates (pens) of 20 birds each. Birds and feed offer and residues were weekly weighed to determine weight gain, feed intake, and feed conversion ratio. In weeks 4, 8, 12, and 16 weeks, one bird per experimental unit was sacrificed to measure the development of the heart development, liver, proventriculus, gizzard, small intestine, and bursa. And...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal welfare; Layers; Organs; Oviduct.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000100123

Blood serum components and serum protein test of Hybro-PG broilers of different ages
Provedor de dados: 89
Autores: Silva,PRL; Freitas Neto,OC; Laurentiz,AC; Junqueira,OM; Fagliari,JJ.
Blood serum samples of HYBRO PG broilers were analyzed, with 30 samples collected from 21-day-old broilers (G1), 30 from 35-day-old birds (G2), and 30 from 42-day-old birds (G3), with the aim of establishing normal values of some blood serum parameters. The activities of the enzymes gamma-glutamyl-transferase (GGT), aspartate aminotransferase (AST), creatine kinase (CK), alkaline phosphatase (ALP), and lactate dehydrogenase (LDH), serum levels of total calcium, calcium ion, phosphorus, sodium, potassium, magnesium, chlorides, creatinine, uric acid, triglycerides, cholesterol, total protein, albumin, total and indirect and direct bilirubin, and electrophoretic profile of serum proteins in acrylamide (SDS-PAGE) and agarose gel were determined. There was no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler; Serum biochemistry; Serum protein test.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000400004

Ground annatto seeds (Bixa orellana L.) in sorghum-based commercial layer diets and their effects on performance, egg quality, and yolk pigmentation
Provedor de dados: 89
Autores: Garcia,EA; Molino,AB; Gonçalves,HC; Junqueira,OM; Pelícia,K; Osera,RH; Duarte,KF.
Consumer demands for healthy foods have stimulated the research on the use of natural products in animal nutrition. Annatto can be used a pigmentation source to improve yolk color of commercial eggs. This study aimed at evaluating the effects of the inclusion of ground annatto seeds on the performance and egg quality of layers fed sorghum-based diets. A total of 336 40-w-old hens were distributed according to randomized blocks into seven treatments with six replicates of eight birds each. The following treatments were applied: T1- egg production feed based on corn and soybean meal; T2- egg production feed based on sorghum and soybean meal; T3, T4, T5, T6, and T7- egg production feed based on sorghum supplemented with 0.5, 1.0, 1.5, 2.0, and 2.5% ground...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative ingredients; Sorghum; Yolk pigmentation.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000400007

Composição e Digestibilidade dos Aminoácidos das Sojas Integrais Processadas para Aves
Provedor de dados: 89
Autores: 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

Effects of the Addition of Glucose, Sodium Bicarbonate, and Vitamin E to the Drinking Water of Pre-Slaughter Broiler Chickens on Carcass Yield, Gastric Emptying and Meat Quality
Provedor de dados: 89
Autores: Petrolli,TG; Junqueira,OM; Domingues,CHF; Pereira,ASC; Santos,ET; Rocha,RX.
ABSTRACT An experiment was conducted of the poultry facilities of La Salle Agricultural College in Xanxerê, SC, Brazil, to evaluate the effect of the administration of sodium bicarbonate, glucose and vitamin E to the drinking water during pre-slaughter feed withdrawal on carcass yield, organ relative weights (heart, liver, proventriculus, and gizzard), gizzard emptying, and meat quality of broiler chickens. The applied treatments were: water as control; 50g/L of glucose; 50g/L de glucose + 200mg/L of vitamin E; 75g/L of glucose; 75g/L + 200mg/L of vitamin E; 0.45% of sodium bicarbonate; 0.45% of sodium bicarbonate + 200mg/L of vitamin E; 0.55% of sodium bicarbonate; 0.55% of sodium bicarbonate + 200mg/L of vitamin E; 200mg/L de vitamin E. On the last day...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler slaughter; Poultry farming; Pre-slaughter feed withdrawal; Tocopherol.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100029

Effects of energy level in finisher diets and slaughter age of on the performance and carcass yield in broiler chickens
Provedor de dados: 89
Autores: Albuquerque,R de; Faria,DE de; Junqueira,OM; Salvador,D; Faria Filho,DE de; Rizzo,MF.
Male broilers were used to evaluate the effects of different energy levels in finisher diets and age of slaughter on performance, production pattern and carcass yield. Experimental design was a 2x3 factorial arrangement: energy level (ME) in the finisher diet (3,200 and 3,600 kcal ME/kg) and age of slaughter (42, 49 and 56 days), resulting in six treatments with four replicates. The finisher diet was fed only in the last week of the growing period. Characteristics evaluated were feed consumption (FC), body weight gain (WG), feed conversion (FC), energy intake (EI), caloric conversion (CC), efficiency production index, production pattern, and carcass yield. The results showed better WG and CC for broilers fed 3,200 kcal ME/kg finisher diet. Broilers...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broilers; Carcass yield; Energy levels; Feeding program; Finisher diet.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000200002

Avaliação da Farinha de Carne e Ossos na Alimentação de Frangos de Corte
Provedor de dados: 89
Autores: Faria Filho,DE; Faria,DE; Junqueira,OM; Rizzo,MF; Araújo,LF; Araújo,CSS.
Um mil quatrocentos e quarenta pintos de um dia, machos, foram utilizados com o objetivo de avaliar a utilização da farinha de carne e ossos (FCO) sobre o desempenho e rendimento de carcaça de frangos de corte. Foi utilizado o delineamento inteiramente ao acaso em esquema fatorial 2 x 2 x 2, com os fatores: níveis de inclusão da FCO (3 e 6%), tipos de FCO (37,51 e 41,58% de proteína bruta), valores de energia metabolizável da FCO conforme equações de predição sugerida pelo NRC (1994) ou tabela de Rostagno et al. (1994), mais um tratamento controle sem a inclusão de FCO, com quatro repetições de 40 aves cada. O consumo de ração e ganho de peso (GP) foram influenciados pela inclusão de FCO, sendo verificado maior GP quando a FCO não foi utilizada. As demais...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Desempenho; Energia metabolizável; Farinha de carne e ossos; Frangos de corte; Rendimento de carcaça.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000100005

Sunflower meal in commercial layer diets formulated on total and digestible amino acids basis
Provedor de dados: 89
Autores: Casartelli,EM; Filardi,RS; Junqueira,OM; Laurentiz,AC; Assuena,V; Duarte,KF.
An experiment was conduced to evaluate the inclusion of sunflower meal (SBM) in commercial layer diets formulated on total or digestible amino acids basis. One hundred forty-four 41-week-old Lohmann LSL layers were distributed in a completely randomized experimental design in a 2 x 4 factorial arrangement with three replications of six birds each. Treatments consisted of a combination of four SBM inclusion levels SBM(0%, 4%, 8%, and 12%) and feed formulation according two amino acid recommendations (total or digestible). The experimental period was divided into five periods of fourteen days. Performance parameters (egg production, feed intake, feed conversion, egg mass) were evaluated for each period. In the last two days of each period, three eggs per...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Egg quality; Nutrition; Performance; Poultry.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300005

Determinação do Valor Nutricional das Sojas Integrais Processadas para Aves
Provedor de dados: 89
Autores: 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

Energy and lysine for broilers from 44 to 55 days of age
Provedor de dados: 89
Autores: Araújo,LF; Junqueira,OM; Araújo,CSS; Barbosa,LCGS; Ortolan,JH; Faria,DE; Stringhini,JH.
An experiment was conducted to evaluate the performance and carcass yield of broilers at 55 days of age fed diets with different levels of metabolizable energy and lysine. Evaluated data of performance were weight gain, feed intake, energy intake, lysine intake, caloric conversion and feed conversion. Carcass assessment was performed based on data from carcass yield, breast weight, whole wings, whole legs, back, head + neck, feet and abdominal fat. A 3 x 3 factorial arrangement was used, with 3 levels of metabolizable energy (3,200; 3,400 and 3,600 kcal ME/kg) and 3 lysine levels (0.95%; 1.05% and 1.15%). There was no interaction between the two factors. Nevertheless, increasing levels of metabolizable energy improved weight gain (745 g; 841 g and 910 g,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broilers; Lysine; Metabolizable energy; Performance.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000400007

Uso de Fosfato Bicálcico Granulado Sobre o Desempenho e Mineralização Óssea de Frangos de Corte
Provedor de dados: 89
Autores: Junqueira,OM; Lemos,MG; Araújo,LF; Mucke,D; Araújo,CSS; Andreotti,MO; Cancherini,LC; Barbosa,MJB.
O objetivo do experimento foi avaliar os efeitos do tamanho da partícula do fosfato bicálcico (fina ou granulada) e dos níveis de fósforo total sobre o desempenho de frangos de corte e sobre os teores de cálcio, fósforo e magnésio dos ossos. O delineamento experimental utilizado foi o inteiramente casualizado em esquema fatorial 3x2 com 3 níveis de fósforo total (0,5%; 0,6% e 0,7%) e duas granulometrias de fosfato bicálcico (fina e granulada). Foram utilizados 300 pintos de corte com um dia de idade, machos, da linhagem Cobb, alojados em baterias metálicas em 6 tratamentos com 5 repetições de 10 aves, totalizando 30 gaiolas dispostas em 6 baterias de 5 andares cada. Os resultados demonstraram que o uso do fosfato granulado resultou em melhor desempenho dos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Desempenho; Fosfato bicálcico; Frangos de corte; Granulometria; Minerais; Ossos.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000100006

Utilização de Trigo em ou Moído em Dietas Para Frangos de Corte
Provedor de dados: 89
Autores: 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

Different criteria for feed formulation based on digestible amino acids for broilers
Provedor de dados: 89
Autores: Araújo,LF; Junqueira,OM; Araújo,CSS; Laurentiz,AC; Assuena,V; Gomes,GA.
An experiment was carried out to evaluate different criteria in feed formulation based on digestible amino acids for broilers during the grower phase. Diets were formulated according to the recommendations for digestible methionine, methionine + cysteine, lysine, and threonine. A total number of six hundred Cobb 500 male day-old chicks were distributed in a completely randomized experimental design, with three formulation criteria supplying the recommendations established by Baker &amp;amp; Chung (1992), Degussa (1997), and Rostagno et al. (2000), with 4 replicates of 50 birds each. No significant differences were observed for weight gain and feed intake. However, feed conversion ratio improved when birds were fed the diets containing the profiles...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broilers; Carcass yield; Digestible amino acids; Performance.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000400005

Avaliação do Desempenho e Excreção de Cálcio em Duas Linhagens de Frangos de Corte, na Fase Inicial, Alimentados com Diferentes Níveis de Aminoácidos e de Cálcio
Provedor de dados: 89
Autores: Araújo,CSS; Artoni,SMB; Araújo,LF; Junqueira,OM; Borges,SA.
Dois experimentos foram realizados com o objetivo de avaliar os efeitos de diferentes níveis de aminoácidos e de cálcio sobre o desempenho e excreção de cálcio de duas linhagens de frangos de corte (Cobb e Avian Farms) na fase inicial de criação. Foram avaliados os dados de desempenho (consumo de ração, ganho de peso e conversão alimentar) e excreção de cálcio. Foram utilizadas 540 aves, em cada experimento, distribuídas em delineamento inteiramente casualizado, em esquema fatorial 3x2, ou seja, 3 perfis de aminoácidos (metionina, metionina+cistina, lisina e treonina - 100%, 125% e 150% dos níveis do NRC,1994) e 2 níveis de cálcio (75% e 100% dos níveis do NRC,1994), com 30 aves por repetição. Analisou-se o cálcio excretado das aves, e para tanto,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aminoácidos; Cálcio; Desempenho; Frangos de corte; Linhagens.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000200003

Performance of layers submitted to different forced-molting methods and different temperatures
Provedor de dados: 89
Autores: Sgavioli,S; Filardi,R da S; Praes,MFFM; Assuena,V; Pileggi,J; Andrade,P de C; Boleli,I C; Junqueira,OM.
This study was carried out to evaluate the performance and egg quality of laying hens, in their second laying cycle submitted to different forced-molting methods and three environmental temperatures. Six hundred layers were distributed in a completely randomized experimental design with 15 treatments with five replicates of eight birds each, according to 5x3 factorial arrangement (molting methods vs. temperatures). The following forced-molting methods were applied: 90%, 70%, 50% dietary alfalfa inclusion, addition of 2,800 ppm zinc, and feed fasting. Temperatures were: 20 ºC, 27 ºC and 35 ºC. At the end of each period of the second laying cycle, bird performance and egg quality were evaluated. Data were submitted to analysis of variance and means were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Egg quality; Heat stress; Performance; Welfare.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000300008

Commercial laying hen diets formulated according to different recommendations of total and digestible amino acids
Provedor de dados: 89
Autores: Casartelli,EM; Filardi,RS; Junqueira,OM; Laurentiz,AC; Assuena,V; Duarte,KF.
An experiment was conducted to evaluate different commercial laying hen diets formulated based on recommendations for total and digestible amino acids. One hundred and twenty Lohmann LSL commercial laying hens aged 25 weeks were distributed in a completely randomized experimental design involving five replications of six birds in four treatments. Diet formulation on a total amino acid basis followed the recommendations of NRC (1994) and Rostagno et al. (2000), whereas formulation on digestible amino acids basis was according to Rostagno et al. (2000) and Degussa (1997) recommendations. The experimental period was divided into five periods of fourteen days. Performance parameters (egg production, feed intake, feed conversion, egg mass) were evaluated for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Egg quality; Layers; Nutrition; Performance; Poultry.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000300007

Effect of phytase in laying hen diets with different phosphorus sources
Provedor de dados: 89
Autores: Casartelli,EM; Junqueira,OM; Laurentiz,AC; Filardi,RS; Lucas Júnior,J; Araujo,LF.
An experiment was conducted to evaluate the effects of the enzyme phytase in diets formulated with different phosphorus sources on performance, eggshell quality and excretion of commercial laying hens. Two hundred and eighty-eight commercial Hyssex Brown laying hens were evaluated during two production phases, which included eight twenty-eight-day cycles, using a completely randomized design in a 3x2 factorial with six replicates of eight birds per treatment. Three phosphorus sources (calcium and sodium phosphate, micro-granulated dicalcium phosphate and triple super phosphate) and two phytase levels (0 or 1000 FTU/kg diet) were tested in the composition of the diets. After the post-peak period, triple super phosphate decreased bird performance and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Commercial laying hens; Eggshell quality; Phosphorus sources; Phytase enzyme.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000200005

Performance, Body Temperature and Egg Quality of Laying Hens Fed Vitamins D and C Under Three Environmental Temperatures
Provedor de dados: 89
Autores: Faria,DE; Junqueira,OM; Souza,PA; Titto,EAL.
Three experiments were conducted in a climatic chamber to determine the effects of vitamins D3 and C supplementation on performance, body temperature, and egg quality under thermoneutral temperature (24.8º to 27.0º C), a cyclic heat stress (26.2º C for 16 h and 32.1º C for 8 h) and a constant heat stress (30.0º to 32.0º C) for three weeks in each temperature. One hundred forty-four White Leghorn hens aged 31 weeks were used in a completely randomized design with a factorial arrangement of 3 x 3: vitamin D3 (2,500, 3,000, and 3,500 IU/kg) and vitamin C (0, 200, and 400 ppm), with a total of nine treatments with four replicates of four hens each. Parameters measured included feed intake (FI), feed:gain (FG), egg production (EP), egg weight (EW), egg mass...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ascorbic acid; Cholecalciferol; Egg; Heat stress; Laying hens.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000100005

Small intestine development of laying hens fed different fiber sources diets and crude protein levels
Provedor de dados: 89
Autores: Praes,MFFM; Pereira,AA; Sgavioli,S; Duarte,KF; Alva,JCR; Domingues,CH de F; Puzzoti,MM; Junqueira,OM.
The objective of the presente study was to evaluate the effects on different dietary fiber sources and crude protein levels on the intestinal morphometry of commercial layers. Isa Brown® layers with 48 weeks of age were distributed in a completely randomized experimental design with a 3 x 2 + 1 factorial arrangement, resulting in seven treatments with seven replicates of eight birds each. At the end of the fourth experimental period (28 days each), birds were 64 weeks of age and were randomly chosen (two birds per replicate, totaling 14 birds per treatment), weighed and sacrificed by neck dislocation. Their intestine was dissected and the duodenum, jejunum and ileum were collected for subsequent analysis of intestinal morphometry. Treatments consisted of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crude protein; Fibers; Intestinal development.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000300004

Feed restriction on performance and blood parameters of broilers fed diets with different sodium levels
Provedor de dados: 89
Autores: Junqueira,OM; Fonseca,LEC; Araújo,LF; Duarte,KF; Araújo,CS da S; Rodrigues,EAp.
The experiment was conducted to evaluate the effect of feed restriction and different sodium levels in the diet on the performance and hematological values (erythrocyte, hemoglobin, hematocrit, mean cell volume, mean cell hemoglobin, mean cell hemoglobin concentration and white blood cell) of broilers from 22 to 42 days of age. A completely randomized design was used in a 4 x 2 x 2 factorial (levels of sodium: 0.16%, 0.19%, 0.22% and 0.25%; with or without feed restriction; male and female), and two replicates of thirty broilers each. Sodium levels did not affect performance (p&gt;0.05). Feed restriction resulted in increased feed intake and affected weight gain and feed conversion negatively (p&lt;0.05). Better weight gain and feed conversion (p&lt;0.05)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blood; Broilers; Feed restriction; Nutrition; Sodium; Sodium bicarbonate.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000200003

Performance, carcass traits, and body composition of broilers fed different linseed oil levels between 21 and 56 days of age
Provedor de dados: 89
Autores: Duarte,KF; Junqueira,OM; Borges,LL; Rodrigues,E; Filardi,R da S; Praes,MFFM; Laurentiz,AC de; Domingues,CH de F.
This study was carried out to evaluate the effect of the inclusion of different linseed oil levels (0.0, 3.3, 6.6, or 9.9%) in iso-energy diets fed during the period of 21 to 56 days of age on the performance, carcass traits, and body composition of broilers. A total of 1,600 broilers were distributed according to a completely randomized experimental design consisting of four treatments with eight replicates of 40 birds per experimental unit. In the period of 21-42 days of age, weight gain increased, feed and calorie conversion ratios quadratically improved, and feed and metabolizable energy intakes linearly increased as dietary linseed oil level increased. Considering the entire experimental period, dietary linseed oil linearly increased weight gain and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ether extract; Weight gain; Abdominal fat; Crude protein; Carcass yield.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000100008

Desempenho de Frangos de Corte Alimentados com Ovo em Pó
Provedor de dados: 89
Autores: Junqueira,OM; Araújo,LF; Araújo,CSS; Faria,DE; Laurentiz,AC; Dahlke,F.
Um experimento foi conduzido para estudar a adição do ovo em pó na dieta de frangos de corte no período de 1 a 28 dias, sendo dividido em duas fases (1 a 7 e 8 a 28 dias). No período de 1 a 7 dias, as aves receberam dietas contendo 0%, 5%, 10%, 15% e 20% de ovo em pó e de 8 a 28 dias de idade as aves foram distribuídas em um arranjo fatorial 2x5 (2 níveis de ovo em pó - 0% e 5% - e os 5 níveis da fase anterior). No período de 1 a 7 dias as aves do tratamento controle apresentaram melhor ganho de peso e as aves alimentadas com dietas contendo 20% de ovo em pó apresentaram menor ganho de peso e pior conversão alimentar. As aves deste mesmo tratamento apresentaram também menor peso e comprimento do intestino. Na segunda fase (8 a 28 dias) não houve interação...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Desempenho; Frangos de corte; Ovo em pó.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000100007

Proteína Bruta e Proteína Ideal para Frangos de Corte no Período de 1 a 21 Dias de Idade
Provedor de dados: 89
Autores: Araújo,LF; Junqueira,OM; Araújo,CSS; Laurentiz,AC; Almeida,JG; Serrano,PP.
Dois experimentos foram realizados com o objetivo de avaliar o desempenho de frangos de corte no período de 1 a 21 dias alimentados com dietas formuladas nos conceitos de proteína bruta e proteína ideal. No primeiro experimento, foram utilizados 400 pintos machos de um dia de idade da linhagem Cobb, distribuídos em delineamento inteiramente casualizado, com 2 tratamentos (proteína total e proteína ideal) e 5 repetições de 40 aves cada. No segundo experimento, foram utilizados 800 pintos, 400 machos e 400 fêmeas, em arranjo fatorial 2x2 (2 formulações - proteína bruta e proteína ideal e 2 sexos) com 4 tratamentos e 5 repetições de 40 aves cada. As dietas foram formuladas atendendo às exigências estabelecidas pela DEGUSSA (1997). Aos 21 dias, foram...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Desempenho; Frangos de corte; Programa de alimentação; Proteína ideal.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000200004

Diferentes critérios de formulação de rações para frangos de corte no período de 1 a 21 dias de idade
Provedor de dados: 89
Autores: Araújo,LF; Junqueira,OM; Araújo,CSS; Artoni,SMB; Faria Filho,DE.
Dois experimentos foram realizados com o objetivo de avaliar diferentes critérios de formulação de rações, baseados em aminoácidos totais e digestíveis, para frangos de corte no período de 1 a 21 dias de idade. As dietas foram formuladas para atender às exigências de metionina, metionina+cistina, lisina e treonina. No primeiro experimento, foram utilizados 800 pintos machos, Hubbard, distribuídos em delineamento inteiramente casualizado com 4 critérios de formulação, para atender às exigências em aminoácidos totais - NRC (1994), Rostagno et al. (1992), Degussa (1997) e AEC (1993), com 4 repetições de 50 aves. No segundo experimento, foram utilizados 600 pintos machos, Cobb, distribuídos em delineamento inteiramente casualizado com 3 critérios de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aminoácidos; Critérios de formulação; Desempenho; Frangos de corte.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000300003