Consulta: creatorFacets:"Vieira,SL"
Registros recuperados: 15
Data/hora: 13/06/2024 16:08:41

Period of incubation and posthatching holding time influence on broiler performance
Provedor de dados: 89
Autores: Almeida,JG; Vieira,SL; Gallo,BB; Conde,ORA; Olmos,AR.
The present study had the objective of investigating the performance of broilers housed immediately after hatching or after a 12 or 24 hour of post-hatching holding time. One thousand and six hundred male Ross 308 broiler chicks with an initial body weight of 46 grams were used. These chicks were distributed in a completely randomized experimental design with 5 treatments and 8 replications of 35 birds in each treatment. The treatments in this study consisted of the removal of chicks from the hatchery in three different times: after 480, 492 and 504 hours of incubation. In each one of these times, 280 chicks were removed from the hatchery and immediately housed. Another group of an identical number of chicks of each time remained in the hatchery to be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Post-hatch period; Broiler performance; Incubation period; Hatchability.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300003

Studies with sanguinarine like alkaloids as feed additive in broiler diets
Provedor de dados: 89
Autores: Vieira,SL; Berres,J; Reis,RN; Oyarzabal,OA; Coneglian,JLB; Freitas,DM; Peña,JEM; Torres,CA.
This research included two studies evaluating the live performance of broilers fed Sangrovit® (minimum of 1.5% sanguinarine, a quaternary benzo[c]phenanthridine alkaloid extracted from Macleaya cordata). Both studies were conducted using Ross 308 female broiler chicks. Birds were fed corn-soybean meal all-vegetable diets without growth promoters with 5 treatments and 8 replications in each study. In the first study, treatments were composed of a Negative Control without feed additive and four diets with graded increases of Sangrovit of 12.5, 25, 37.5, and 50 ppm. In the second study, chicks received a similar diet from placement to 21 days of age and subsequently were given feeds with graded reductions in crude protein (CP) as follow: a Negative Control...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broilers; Feed additive; Sangrovit®; Sanguinarine.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000100010

Efficacy and Metabolizable Energy Equivalence of an α-Amylase-β-Glucanase Complex for Broilers
Provedor de dados: 89
Autores: Vieira,SL; Stefanello,C; Rios,HV; Serafini,N; Hermes,RG; Sorbara,JOB.
A trial was conducted to evaluate the effects of adding an exogenous α-amylase-β-glucanase complex produced from Bacillus amyloliquefaciens on the growth performance, carcass yield, and relative AME bioequivalence in broilers fed corn-soy diets from 1 to 40 d of age. One thousand seven hundred and fifty one-day-old Cobb x Cobb 500 slow-feathering male broilers were randomly allotted to seven treatments with 10 replicates of 25 birds each as follows: control diet (C); C diet with reduction of 60 (C-60), 90 (C-90), or 120 (C-120) kcal AME/kg; C diet with reduction of 120 kcal AME/kg and supplemented with 200 (C-120-200), 300 (C-120-300), or 400 (C-120-400) mg of the enzyme complex/kg. Each g of the enzyme complex corresponded to 200 kilo-Novo α-amylase and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Α-amylase; Β-glucanase; Broiler; Carbohydrases; Enzyme.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000200227

Live performance and processing yields of broilers fed diets with tiamulin and salinomycin combinations
Provedor de dados: 89
Autores: Vieira,SL; Favero,A; Berres,J; Freitas,DM; Martinez,JEP; Mayorga,ME; Coneglian,JLB.
A study was conducted with the objective of evaluating the combined application of tiamulin (TIA) and salinomycin (SAL) in broiler diets fed from 1 to 42 d of age. One thousand and two hundred Cobb x Cobb 500 male broilers were housed in 48 floor pens and fed corn-soybean meal diets containing 66 ppm of SAL combined or not with TIA at 30 or 20 and 20 or 15 ppm, respectively, in the starter (1-21 d) and grower feeds (22-42 d); however, TIA was withdrawn from the feeds 7 days before slaughter. The experimental design was completely randomized with 3 treatments and 16 replicates of 25 birds each. Broilers were weekly evaluated for live performance whereas carcass yield, abdominal fat and commercial cuts were assessed at 42 d using 6 birds randomly taken from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibiotic; Broiler; Ionophores; Salinomycin; Tiamulin.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000100005

Hatching distribution and embryo mortality of eggs laid by broiler breeders of different ages
Provedor de dados: 89
Autores: Almeida,JG; Vieira,SL; Reis,RN; Berres,J; Barros,R; Ferreira,AK; Furtado,FVF.
This study investigated the hatching distribution of eggs from broiler breeders of different ages in distinct periods of incubation. Eggs were incubated in a single-stage experimental incubator. A number of 3.510 eggs were distributed into 3 treatments with 13 replicates of 90 eggs each. Treatments corresponded to breeder age: young (34 weeks), intermediate-age (44 weeks) and old (72 weeks) breeders. Eggs were transferred to the hatcher at 432 incubation hours, hatching was first checked at 449 hours, after which the number of hatched chicks was counted every 6 hours up to 515 incubation hours. After each count, hatched chicks were removed from the hatcher. Data were submitted to analysis of variance using measures repeated. A significant interaction...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler chicks; Embryo mortality; Incubation; Post-hatching management.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000200003

Performance of broilers fed increased levels energy in the pre-starter diet and on subsequent feeding programs having with acidulated soybean soapstock supplementation
Provedor de dados: 89
Autores: Vieira,SL; Viola,ES; Berres,J; Olmos,AR; Conde,ORA; Almeida,JG.
This study aimed to evaluate broiler responses to increases in feed energy (2,870, 3,000 and 3,100 kcal ME/kg) and the inclusion of Acidulated Soybean Soapstock (ASS) when compared to Degummed Soybean Oil (DSO) in feeds from placement to 7 days of age. From 7 to 42 days ASS or DSO were included in diets that contained similar energy and nutrient levels. Metabolizable energy values used to formulate the diets for ASS and DSO were 8,351 and 7,701 kcal ME/kg in the first week and 9,314 and 8,559 kcal ME/kg afterwards, respectively. Diets were based on corn and soybean meal and were fed to 1,600 one-d-old male broiler chicks randomly placed in 40 floor pens. No differences in performance due to fat source were seen at 7 days. However, the increase in energy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fat; Pre-starter diet; Soybean fat.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000100009

Ascorbic acid and citric flavonoids for broilers under heat stress: effects on performance and meat quality
Provedor de dados: 89
Autores: Peña,JEM; Vieira,SL; López,J; Reis,RN; Barros,R; Furtado,FVF; Silva,PX.
The aim of this study was to evaluate the effects of increasing doses of ascorbic acid (AA) and citric flavonoids (quercetin and rutin) on the performance and meat quality characteristics of broilers submitted to cyclic heat stress. Four-hundred one-day-old female Ross 308 were housed in 40 battery cages a in temperature controlled room. Treatments consisted of 0, 250, 500, and 1000 g/ton on of AA + citric flavonoids. Birds were fed ad libitum until 32 day of age. Beginning on day 14 post-hatch until the end of the experiment, in order to simulate cyclic heat stress, the temperature inside the room was increased to 32°C for 5 hours, and decreased until reaching the comfort temperature corresponding to the age of the animals. Birds were slaughtered at 33...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ascorbic acid; Broiler; Heat stress; Flavonoids.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000200008

Nutrição Pós-Eclosão de Frangos de Corte
Provedor de dados: 89
Autores: Vieira,SL; Pophal,S.
A emergência da casca marca o final do período de incubação das aves. Esse período pode ter extremos que vão de 480 a 510 horas em galinhas domésticas. As aves precociais nascem com reservas nutricionais provenientes do albúmen e gema residuais contidos no saco vitelino, que são importantes nas primeiras horas de vida enquanto ocorre a adaptação à alimentação independente, com recursos obtidos no meio ambiente. Aparentemente, os pintainhos de corte não apresentam restrições significativas com relação à utilização dos nutrientes obtidos externamente. Uma exceção, de importância questionável, pode ser a possível redução na capacidade de emulsificação das gorduras devido a uma menor concentração de sais biliares momentaneamente disponíveis. Entretanto, o...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Frangos; Nutrição e pós-eclosão.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2000000300001

Hatching distribution of eggs varying in weight and breeder age
Provedor de dados: 89
Autores: Vieira,SL; Almeida,JG; Lima,AR; Conde,ORA; Olmos,AR.
Broiler chicks from one incubator hatch within long periods of time, which leads to dehydration and reduction in yolk sac reserves of those chicks that have hatched earlier and potentially impairs early performance. The present research investigated the hatching distribution at intervals of incubation using eggs of different weights within one breeder age or eggs from widely different breeder ages. Eggs from breeders at 27 and 59 weeks of age (54 and 69 g) and from breeders at 40 weeks of age, which were graded as light (58 g) and heavy (73 g), were placed in a commercial incubator. There were a total of 1,184 eggs distributed in four treatments and eight replicates: eggs from 27-week-old breeders (27B), eggs from 59-week-old breeders (59B), light eggs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breeder age; Egg weight; Hatchability.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000200002

Water intake and digestive metabolism of broilers fed all-vegetable diets containing acidulated soybean soapstock
Provedor de dados: 89
Autores: Vieira,SL; Viola,ES; Berres,J; Coneglian,JLB; Freitas,DM; Bortolini,TCK.
A study was conducted to compare live performance and digestive metabolism of broiler chickens fed all-vegetable diets (All-Veg) compared to a regular diet including animal by-products. Three feeds were formulated and provided to broilers according to the feeding program: pre-starter from 1 to 10 days, starter from 11 to 21 days, and grower from 21 to 35 days. All feeds had corn and soybean meal as major ingredients; however, two of them were all-vegetable diets having either Degummed Soybean Oil (DSO) or Acidulated Soybean Soapstock (ASS) as fat sources. The third diet included poultry by-product and poultry fat. A total number of 360 day-old broiler chicks were allocated to 1m² battery cages, 10 chicks in each, and 12 replicates per treatment. Live...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acidulated soybean soapstock; All vegetable diets; Broiler; Metabolizability; Water intake.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300004

Energy utilization of by-products from the soybean oil industry by broiler chickens: acidulated soapstock, lecithin, glycerol and their mixture
Provedor de dados: 89
Autores: Peña,JEM; Vieira,SL; Borsatti,L; Pontin,C; Rios,HV.
Acidulated soy soapstock (ASS) and lecithin (LEC) are by-products from processing soy oil (SO) for human consumption, whereas glycerol (GLY) can be obtained through the transesterification of vegetable oils during the production of biodiesel. These are valuable by-products for poultry feeds that have been underutilized in many parts of the world. One study was conducted to estimate the AMEn of ASS, LEC, GLY as well as of their mixture (MIX: 85% ASS, 5% LEC and 10% GLY). Two hundred and sixty Cobb 500 female broilers of 20 days of age were housed in steel wire battery cages in a controlled temperature room for broilers. A completely randomized (energy sources x fat inclusion level) factorial design was applied, with 4 replicates of three birds per...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acidulated soapstock; Broiler; Glycerol; Lecithin.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400015

Desenvolvimento de Órgãos da Digestão e Rendimento de Carcaça de Frangos de Corte de Diversas Origens Genéticas Criados com Bebedouros Pendular e Nipple
Provedor de dados: 89
Autores: Fernandes,LM; Vieira,SL; Baptista,CB.
O uso de linhas genéticas de diferentes fontes comerciais em programas de reprodução de frangos de corte permite produzir gerações comerciais mais bem adaptadas a realidades diversas e otimizar os potenciais de desempenho do frango de corte com os da reprodutora. Entretanto, a prática predominante no Brasil é o uso de pais e mães de mesma origem. O uso de bebedouros tipo "nipple" vem sendo difundido com a perspectiva de gerar benefícios ainda não comprovados inteiramente na prática. Esse estudo avaliou a evolução dos órgãos da digestão, o desempenho vivo e o rendimento de carcaça e das partes de frangos de corte de diferentes cruzamentos entre reprodutores machos de diversos cruzamentos entre linhagens comerciais (R, I, S, e H) com fêmeas também de origem...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Frango de corte; Linhagem; Rendimento de carcaça; Bebedouro; Órgãos da digestão.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000100009

Chicken embryo utilization of egg micronutrients
Provedor de dados: 89
Autores: Vieira,SL.
Tipo: Info:eu-repo/semantics/article
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000100001

Chelated minerals for poultry
Provedor de dados: 89
Autores: Vieira,SL.
Organic minerals have been subject of an increasing number of investigations recently. These compounds can be considered the most significant event regarding commercial forms of minerals targeting animal supplementation in the last decades. Minerals, especially metals, are usually supplemented in poultry feeds using cheap saline sources and have never required a lot of attention in terms of quality. On the other hand, definitions of organic minerals are very broad and frequently lead to confusion when decision-making becomes necessary. Organic minerals include any mineral bound to organic compounds, regardless of the type of existing bond between mineral and organic molecules. Proteins and carbohydrates are the most frequent candidates in organic mineral...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler; Chelated mineral; Organic mineral; Poultry.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000200001

Utilização da Energia de Dietas para Frangos de Corte Formuladas com Óleo Ácido de Soja
Provedor de dados: 89
Autores: Vieira,SL; Ribeiro,AML; Kessler,AM; Fernandes,LM; Ebert,AR; Eichner,G.
O produto comercialmente chamado "óleo ácido de soja", resulta da acidificação da borra residual do processo de refino do óleo de soja. Este tem sido muito utilizado na indústria de rações animais, ainda que com vários questinamentos a cerca de sua eficiência, tais como a adulteração com outros ácidos graxos de baixo valor nutricional, nível de peroxidação, presença de impurezas, e valores energéticos não confiáveis. Neste estudo, foi avaliado o desempenho de frangos de corte consumindo dietas contendo óleo de soja ou óleo ácido de soja nos níveis de 4 e 8% ou a mistura das duas fontes em partes iguais de 2 e 4% cada. Essas dietas foram fornecidas para frangos de corte alojados em baterias climatizadas a partir dos 7 dias de idade. As aves que receberam...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ácidos graxos livres; Energia; Frango de corte; Gordura; Óleo ácido de soja.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000200005