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	Provedor de dados Infoteca-e (1) Autor COELHO, R. W. (1) REIS, J. C. L (1) RODRIGUES, R. C. (1) Palavra-chave Anállise bromatológica. (1) Capim Nilo (1) Produção. (1) Silagem pré-secada (1) Valor nutricional (1) Tipo do documento Comunicado Técnico (INFOTECA-E) (1) Ano 2003 (1) País Brazil (1) Idioma Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 59 Primeira ... 1 2 3 ... Última AN EVALUATION OF THE THERMAL AND LUMINOUS ENVIRONMENT OF LAYING HEN AVIARIES EQUIPPED WITH LIGHT-EMITTING DIODE AND COMPACT FLUORESCENT LAMPS AND THEIR EFFECTS ON PRODUCTION AND EGG QUALITY REA Ribeiro,Priscilla A. P.; Yanagi Junior,Tadayuki; Lima,Renato R. de; Oliveira,Daniela D. de; Abreu,Lucas H. P.. ABSTRACT The thermal and luminous conditions in aviaries affect the production and quality of eggs. Thus, the aim of the present study was to evaluate the thermal and luminous environment of commercial laying hen aviaries equipped with compact fluorescent (CF) and light-emitting diode (LED) lamps and their influence on egg production and quality. The study was carried out in two commercial laying hen facilities with similar construction features and management. The first facility was illuminated with CF lamps and the second with LED lamps. The thermal environment was assessed via air temperature, air relative humidity, and enthalpy. The evaluated lamps provided a similar thermal environment in both facilities. The aviary equipped with LED lamps showed... Tipo: Info:eu-repo/semantics/article Palavras-chave: Thermal environment; Artificial lighting; Laying hens. Ano: 2021 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000100001 Oviduct-specific expression of tissue plasminogen activator in laying hens Genet. Mol. Biol. Kaleri,Hubdar Ali; Xiang,Liu; Aniwashi,Jueken; Xu,Shiyong. Egg-laying hens are important candidate bioreactors for pharmaceutical protein production because of the amenability of their eggs for protein expression. In this study, we constructed an oviduct-specific vector containing tissue plasminogen activator (tPA) protein and green fluorescent protein (pL-2.8OVtPAGFP) and assessed its expression in vitro and in vivo. Oviduct epithelial and 3T3 cells were cultured and transfected with pL-2.8OVtPAGFP and pEGP-N1 (control vector), respectively. The pL-2.8OVtPAGFP vector was administered to laying hens via a wing vein and their eggs and tissues were examined for tPA expression. The oviduct-specific vector pL-2.8OVtPAGFP was expressed only in oviduct epithelial cells whereas pEGP-N1 was detected in oviduct epithelial... Tipo: Info:eu-repo/semantics/article Palavras-chave: Green fluorescent protein; Human tissue plasminogen activator; Laying hens; Oviduct-specific expression. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000200011 MANUAL de manejo das poedeiras coloniais de ovos castanhos: Embrapa 051. Infoteca-e Características das poedeiras Embrapa 051: As poedeiras coloniais Embrapa 051 são galinhas híbridas, resultantes do cruzamento entre linhas Rhode Island Red e Plymouth Rock Branca, selecionadas na Embrapa Suínos e Aves. Essas galinhas são especializadas para produção de ovos de mesa casca marron e por serem rústicas se adaptam bem aos sistemas menos intensivos, como parques. Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Poedeira Embrapa 051; Brown eggs; Ovo castanho; Galinha para postura; Galinha caipira; Produção animal; Poultry production; Laying hens; Egg shell formation. Ano: 2006 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1026304 10 procedimentos básicos para o controle de Salmonella em granjas de postura comercial. Infoteca-e DUARTE, S. C.; GASPAR, L. F.; OLMOS, A. R.; FORTES, F. B. B.. bitstream/item/156490/1/final-8399novo.pdf Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Poedeira.; Sanidade animal; Galinha para postura; Granja; Salmonella.; Animal health; Laying hens; Aviaries.. Ano: 2016 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1064907 Ninho adaptado para galinhas poedeiras. Infoteca-e SAATKAMP, M. G.; AVILA, V. S. de. bitstream/item/145677/1/final8201.pdf Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Galinha para postura; Instalação para animal; Ninho; Poultry housing; Laying hens; Nests. Ano: 2016 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1049374 Modeling energy utilization in broiler breeders, laying hens and broilers Rev. Bras. Ciênc. Avic. Sakomura,NK. The factorial approach has been used to partition the energy requirements into maintenance, growth, and production. The coefficients determined for these purposes can be used to elaborate energy requirement models. These models consider the body weight, weight gain, egg production, and environmental temperature to determine the energy requirements for poultry. Predicting daily energy requirement models can help to establish better and more profitable feeding programs for poultry. Studies were conducted at UNESP-Jaboticabal to determine metabolizable energy (ME) requirement models for broiler breeders, laying hens, and broilers. These models were evaluated in performance trials and provided good adjustments. Therefore, they could be used to establish... Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Broiler breeders; Energy metabolism; Energy requirement; Factorial approach; Laying hens; Modeling. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000100001 Pearl millet utilization in ccommercial laying hen diets formulated on a total or digestible amino acid basis Rev. Bras. Ciênc. Avic. 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 feeding whole linseed as a source of polyunsaturated fatty acids on performance and egg characteristics of laying hens kept at high ambient temperature Rev. Bras. Ciênc. Avic. Ahmad,S; Ahsan-ul-Haq,; Yousaf,M; Kamran,Z; Ata-ur-Rehman,; Sohail,MU; Shahid-ur-Rahman,. The present study was conducted to evaluate the effects of feeding whole linseed on the laying performance and egg characteristics in laying hens kept at high ambient environmental temperatures (average 34 ºC; the diurnal temperature range 26 ºC to 41 ºC). Two hundred and forty 38-wk-old white Leghorn laying hens were fed diets containing 0, 5, 10 or 15% whole linseed (as a source of n-3 polyunsaturated fatty acids) for a period of 12 weeks. Egg production was recorded daily, while feed intake and egg characteristics were monitored on weekly basis. The results of the study demonstrated that egg production and feed intake decreased, while feed conversion ratio (FCR) per dozen of eggs increased (p < 0.05) with increasing dietary linseed levels. Egg... Tipo: Info:eu-repo/semantics/article Palavras-chave: Linseed; N-3 PUFA; Laying hens; Hot climate; Performance. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000100004 Severe Outbreak of Avian Encephalomyelitis in Laying Hens in Northeastern Brazil Rev. Bras. Ciênc. Avic. Rocha,PMC; Barros,MEG; Rocha,BP; Souza,FAL; Mendonça,FS; Evêncio-Neto,J. ABSTRACT This paper describes the epidemiological, clinical and pathological aspects of an avian encephalomyelitis (AE) outbreak in commercial laying hens in Northeastern Brazil. The disease affected 23,409 layers (from day one until 100 weeks) leading to mortality of 16.5% (5,049/30,600) of the flock. Twenty laying hens were clinically examined, and blood samples were collected and tested by Enzyme-Linked Immunosorbent Assay (ELISA). Five laying hens with neurological signs were necropsied and samples of the brain, cerebellum, spinal cord, sciatic nerve, heart, ceca tonsils, proventriculus and liver were collected, fixed in formalin buffered solution and processed according to routine methods for histological examination. Clinical signs were observed in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Avian encephalomyelitis; Birds; Laying hens; Nonsuppurative encephalomyelitis; Vaccination. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000200305 Effect of the calcium level and limestone particle size on the performance of semi-heavy layers in the second cycle of egg production Rev. Bras. Ciênc. Avic. Pizzolante,CC; Garcia,EA; Laganá,C; Saldanha,ESPB; Deodato,AP; Faitarone,ABG; Scherer,MR; Batista,L. An experiment was carried out at the Research and Development Unit of Brotas aiming at evaluating dietary calcium level and limestone particle size on the production performance of commercial (Hy-Line Brown) layers in the second lay cycle. Experiment duration was 112 days. A total number of 288 hens, with 83 weeks of age in the beginning of the experiment, were used in a completely randomized experimental design in a factorial arrangement of 2x3, with two calcium levels (3.5 and 4.0%) and three limestone particle size compositions: 100% fine limestone (FL), 30% coarse limestone (CL) + 70% fine limestone (FL), and 50% (CL) + 50% (FL), with six replicates of eight birds each. Egg weight (g), egg production (%), egg mass (%), feed intake (g), feed conversion... Tipo: Info:eu-repo/semantics/article Palavras-chave: Calcium; Laying hens; Limestone; Particle size; Performance. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300006 Effect of cage density on the performance of 25- to 84-week-old laying hens Rev. Bras. Ciênc. Avic. Rios,RL; Bertechini,AG; Carvalho,JCC; Castro,SF; Costa,VA. Three experiments were carrie out to evaluate the influence of cage density on the performance of 25- to 84-week-old laying hens. Forty hundred Lohmann-LSL layers were distributed in cages (100x40x 45x50cm) according to a completely randomized experimental design with split plot in time.Three treatments (10, 12, or 14 hens per cage, corresponding, to 450, 375, and 321cm²/bird, respectively), with 15 assessment periods (four weeks each), and eight replicates per treatment were applied. Considering that layer's production cycle is affected by age, three experimental trials (25 to 44; 45 to 64 and 65 to 84 weeks of age) were carried out, and the data collected in each trial was individually analyzed. Increasing cage density significantly reduced feed intake... Tipo: Info:eu-repo/semantics/article Palavras-chave: Birds per cage; Cage density; Egg production; Laying hens. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000400007 Dietary Lactic Acid Bacteria Modulate Yolk Components and Cholesterol Metabolism by Hmgr Pathway in Laying Hens Rev. Bras. Ciênc. Avic. Deng,Q; Shi,H; Luo,Y; Liu,N; Deng,X. ABSTRACT This study aimed to investigate the effect of dietary lactic acid bacteria (LAB) on egg production, yolk components, cholesterol metabolism, and enterohepatic circulation of bile acids in hens. Four treatment diets included a control and LAB added at 3 × 105 (low), 3 × 107 (medium), or 3 × 109 (high) cfu/kg. The treatment LAB contained equal amounts of Lactobacillus acidophilus, Lactobacillus plantarum, and Enterococcus faecium. Results showed that high LAB increased (p<0.05) laying rate, egg mass, and yolk phospholipid, but decreased (p<0.05) yolk triglyceride and phosvitin. Diets with LAB decreased (p<0.05) yolk and serum cholesterol content, and serum bile acid by 9.3 to 39.9%. In liver, high LAB downregulated (p<0.05) mRNA... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cholesterol metabolism; HMGR pathway; Lactic acid bacteria; Laying hens; Yolk components. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000300303 Cobalt and vitamin B12 in diets for commercial laying hens on the second cycle of production Rev. Bras. Ciênc. Avic. Kato,RK; Bertechini,AG; Fassani,EJ; Santos,CD; Dionizio,MA; Fialho,ET. The supplementation of cobalt and vitamin B12 in diets for commercial laying hens on the second production cycle was studied. Four hundred and eighty light commercial laying hens, Lohmann LSL, were used at initial phase of forced molting laying period. The trial was conducted in a randomized design. The plots were the treatments which were constituted by combination of five cobalt levels (0.00; 0.30; 0.60; 0.90 and 1.20ppm) and two vitamin B12 levels (without and with 10µ/kg), and the split-plots were four periods (21, 42, 63 and 84 days) during the second period of production, with 4 repetitions and 12 hens per experimental unit. Food and water were provided ad libitum and eggs were collected twice daily. Performance and egg quality parameters were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cobalt; Egg production; Laying hens; Nutrition; Vitamin B12. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000100006 Effect of Dietary Inclusion of Leucaena (Leucaena leucocephala) and Banana Flour (Musa cavendishii) on Performance of Laying Hens Rev. Bras. Ciênc. Avic. Dumorné,K. ABSTRACT The aim of the present study was to evaluate the effects of Leucaena (Leucaena leucocephala) and Banana flour (Musa cavendishii) on performance of laying hens. Fifty laying hens (3 months of age) were randomly distributed into five experimental groups, each consisting of 10 laying hens. The groups were control (10 laying hens); L6 (Leucaena, 6 g/day (10 laying hens)); L8 (Leucaena, 8.0 g/day (10 laying hens)); L10 (Leucaena, 10 g/day (10 laying hens)); and L12 (Leucaena, 12 g/day (10 laying hens)), in addition, five levels of Banana flour control (10 laying hens); 25% (10 laying hens); 50%, (10 laying hens); 75% (10 laying hens); and 100% (10 laying hens), were assessed respectively. The experimental period lasted from 4 to 8 weeks. The results of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Animal diet; Banana flour; Laying hens; Leucaena. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000400725 Infectious laryngotracheitis: a review Rev. Bras. Ciênc. Avic. Hidalgo,H. Infectious laryngotracheitis (ILT) herpesvirus continues to cause outbreaks of respiratory disease in chickens world-wide. Sporadic cases of ILT occur in all classes of birds, including hobby/show/game chickens, broilers, heavy breeders, and commercial laying hens. These epornitics of ILT tend to occur where there are large populations of naïve, unvaccinated birds, i.e., in concentrated areas of broiler production. ILT virus can be transmitted through (a) chickens with acute upper respiratory tract disease, (b) latently infected "carrier" fowls, and (c) fomites and contaminated persons. Chicken flocks which are endemic infected with ILT virus occur only in some regions of countries or even in particular multiple-age production farms. In these cases... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biosecurity; Broiler breeders; ILT virus; Laryngotracheitis; Laying hens; Vaccines. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000300001 Dietary Effects of Natural Polyphenol Antioxidant on Laying Performance and Egg Quality of Laying Hens Fed Diets with Oxidized Oil Rev. Bras. Ciênc. Avic. Lee,HH; Kim,DH; Lee,KW; Kim,KE; Shin,DE; An,BK. ABSTRACT This study was conducted to investigate the effects of dietary oxidized oil and natural polyphenol antioxidants on laying performances and egg quality of laying hens. A total of two hundred, 61-week-old Lohmann Brown laying hens were divided into five groups, consisting in four replicates of 10 birds each. They were fed one of the five experimental diets (fresh oil only, oxidized oil without antioxidants, oxidized oil with vitamin E 200 ppm, oxidized oil with vitamin E 100 ppm + Cabanin CSDⓇ 100 ppm, oxidized oil with Cabanin CSDⓇ 500 ppm)respectively, for 6 weeks. There were no significant differences in laying performances and egg weight among the treatments. However, egg mass in group fed oxidized oil with vitamin E 100 ppm + Cabanin CSDⓇ 100... Tipo: Info:eu-repo/semantics/article Palavras-chave: Laying hens; Oxidized oil; Natural antioxidants; Vitamin E; Egg quality. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100319 Requirement of Digestible Sulfur Amino Acids in Laying Hens Fed Sorghum- and Soybean Meal-Based Diets Rev. Bras. Ciênc. Avic. Gomez,RS; Angeles,ML. ABSTRACT Two experiments were done to evaluate the effect of increasing levels of dietary digestible methionine (Met) and Met:cysteine (Met:Cys) ratio on the productivity of Hy-Line W-36 laying hens fed sorghum- and soybean meal-based diets. In Exp. 1, 160 hens from 68 to 75 weeks of age were assigned to four dietary levels of digestible Met (0.20 0.24, 0.28 and 0.32%). The digestible total sulfur amino acids:Lysine (TSAA:Lys) ratios were: 62, 68, 76 and 84%. In Exp. 2, 192 hens from 76-83 weeks of age were assigned to four dietary digestible Met:Cys ratios (160, 116.7, 85.7 and 62.5%). The digestible TSAA:Lys ratio was kept constant across diets (80%). Results were subjected to ANOVA and linear regression analyses. In Exp. 1, optimal egg production, egg... Tipo: Info:eu-repo/semantics/article Palavras-chave: Laying hens; Requirements; Methionine; Cysteine; Productivity. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000200231 Physical-Chemical Characteristics of Designer and Conventional Eggs Rev. Bras. Ciênc. Avic. Kralik,Z; Kralik,G; Grčevi&#263;,M; Kralik,I; Gantner,V. ABSTRACT The objective of this study was to compare the internal and external quality of conventional and designer eggs. In total, 120 Tetra SL laying hens were randomly allotted to two treatments (K and P groups), with 12 replicates of five hens each. The control group (K) was fed a standard layer diet, producing conventional eggs, and the P group was fed a modified diet supplemented with 5% of an oil mixture, 0.5 mg organic selenium/kg, 200 mg lutein/kg and 200 mg vitamin E/kg, producing designer eggs. Treatments did not influence (p>0.05) egg weight or egg component weights. Designer eggs presented higher albumen proportion and lower eggshell proportion than conventional eggs (p<0.01). Relative to egg quality parameters, designer eggs presented... Tipo: Info:eu-repo/semantics/article Palavras-chave: Designer eggs; Haugh units; Laying hens; PH; TBARS.. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100119 Climate Change in Layer Poultry Farming: Impact of Heat Waves in Region of Bastos, Brazil Rev. Bras. Ciênc. Avic. Lamarca,DSF; Pereira,DF; Magalhães,MM; Salgado,DD. ABSTRACT The region around the municipality of Bastos, state of São Paulo, accounted for about 7% of Brazilian egg production in 2015. In 2012, it experienced a heat wave that resulted in the death of approximately 500,000 hens, according to information released at the time. Considering the impact of heat waves on layer mortality, the objective of this study was to analyze how heat waves impact the layer farming in the region of Bastos, considering the climate change scenarios forecasted by the IPCC for the next years. This study was conducted in three stages: i) analysis of the IPCC reports to understand climate change scenarios; ii) analysis of historical temperature data in the region of Bastos; iii) analysis of how climate change, through heat waves,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Egg production; Extreme event; IPCC; Laying hens; Mortality. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000400657 Effects of Flammulinavelutipes Stem Base on Microflora and Volatile Fatty Acids In Caecum of Growing Layers under Heat Stress Condition Rev. Bras. Ciênc. Avic. Wang,S; Mahfuz,S; Song,H. ABSTRACT The present study was undertaken to investigate the effects of Flammulinavelutipes stem base (FVS) on growth performance, microbial flora and volatile fatty acids of growing layers under heat stress condition. A total of 72 ISA Brown hens were randomly divided into six treatments: thermoneutral temperature control group (CON), heat stress control group (HS), heat stress antibiotic group (ANT) as positive control and heat stress FVS groups (20, 40 or 60 g/kg FVS). The experimental period had a duration of 28 d (days 84-112). On day 98, daily gain average was significantly higher (p<0.05) in the FVS groups than in the HS group. The number of bands in the FVS groups were higher (p<0.05) than in the HS group on day 98. The microbial similarity... Tipo: Info:eu-repo/semantics/article Palavras-chave: Laying hens; Thermal stress; Microbial flora; Mushroomstembase; Short chain fatty acids. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000400303 Registros recuperados: 59 Primeira ... 1 2 3 ... Última

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