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Registros recuperados: 75
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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
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ACTIVITY OF SOME BRAZILIAN ISOLATES OF ENTOMOPATHOGENIC FUNGI AGAINST THE POULTRY RED MITE DERMANYSSUS GALLINAE DE GEER (ACARI: DERMANYSSIDAE) Rev. Bras. Ciênc. Avic.
Kasburg,CR; Alves,LFA; Oliveira,DGP; Rohde,C.
ABSTRACT Poultry red mite Dermanyssus gallinae is a cosmopolitan and hematophagous species commonly found in layer houses around the world. Poultry mite infestations may cause anemia, stress, low body weight and egg production, and mortality. Mite control is typically based on chemical products, but they are not effective and leave residues in eggs; therefore, alternative control methods, such as entomopathogenic fungi, need to researched. This study aimed at evaluating, in the laboratory, the activity of Brazilian isolates of entomopathogenic fungi against D. gallinae. The mites were collected from a commercial layer house and were sprayed with conidial suspensions (1 × 108 conidia/mL) of five isolates of Beauveria bassiana and Metarhizium anisopliae. All...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hematophagous mites; Microbial control; Ectoparasites; Laying hens.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300457
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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
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Analysis of Behavioural Profile of Hens with the Use of Computer Software Rev. Bras. Ciênc. Avic.
Rozempolska-Rucinska,I; Bownik,A; Prochniak,T; Zieba,G; Slaska,B; Kasperek,K; Kozak,A.
ABSTRACT The aim of the study was to evaluate the emotional reactivity of hens with the use of physical parameters such as movement velocity and position of the selected parts of the body analysed by computer software - Tracker®. 200 Rhode Island White hens kept individually in a laying hen breeding farm were used in the study. The analysis of hens behaviour was performed with the use of Novel Object Test. Afterwards the video clips were analysed to determine behavioural reactivity with the use of Tracker® software by analysis of two control points: the upper part of the head and the peak of the tail. The results suggest that it is possible to use Tracker® software for evaluation of hens behavioural profile and this sort of analysis enables to classify...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Emotional reactivity; Laying hens; Novel Object Test; Tracker® software.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000300413
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Assessment of Egg Quality in Native and Foreign Laying Hybrids Reared in Different Cage Densities Rev. Bras. Ciênc. Avic.
Ozenturk,U; Yildiz,A.
ABSTRACT This study aimed to compare the eggs of the native-Turkish Atak-S (A-S) hybrid and the foreign brown layer Isa Brown (IB) and white layer Novogen White (NW) hybrids reared in two different cage densities (468.75 cm2/hen and 312.50 cm2/hen) in terms of the internal and external quality parameters of the eggs. A total of 540 hens including 180 from each genotype were used. To determine the egg quality characteristics, one randomly selected egg was taken out of each cage every 4 weeks in the yield period of 24-68 weeks, and analysis were carried out. A total of 648 eggs were used. In the study, the effect of genotype on all parameters was found to be significant. The shell thickness, Haugh unit and albumen index were lower in the Atak-S hybrid. In...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Age; Atak-S; Cage density; Egg quality; Laying hens.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000300313
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Assessment of Egg Quality in Native and Foreign Laying Hybrids Reared in Different Cage Densities Rev. Bras. Ciênc. Avic.
Ozenturk,U; Yildiz,A.
ABSTRACT This study aimed to compare the eggs of the native-Turkish Atak-S (A-S) hybrid and the foreign brown layer Isa Brown (IB) and white layer Novogen White (NW) hybrids reared in two different cage densities (468.75 cm2/hen and 312.50 cm2/hen) in terms of the internal and external quality parameters of the eggs. A total of 540 hens including 180 from each genotype were used. To determine the egg quality characteristics, one randomly selected egg was taken out of each cage every 4 weeks in the yield period of 24-68 weeks, and analysis were carried out. A total of 648 eggs were used. In the study, the effect of genotype on all parameters was found to be significant. The shell thickness, Haugh unit and albumen index were lower in the Atak-S hybrid. In...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Age; Atak-S; Cage density; Egg quality; Laying hens.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000400313
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Caracterização descritiva da incidência de endoparasitas em poedeiras criadas sobre cama e com acesso ao piquete. Repositório Alice
FORGIARINI, J.; PAPPEN, F. G.; AVILA, V. S. de; MORES, M. A. Z.; ALVES, D. A.; ROLL, V. F. B.; KRABBE, E. L..
Tipo: Separatas Palavras-chave: Poedeira; Bem-estar animal; Sistema de aviário com camas; Criação animal.; Galinha para postura; Parasito; Helminto.; Endoparasites; Helminths; Animal husbandry; Animal welfare; Laying hens; Aviaries.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1064126
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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
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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
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Comparison between infrared and hot-blade beak trimming methods in whiteand brown pullets: performance, organ and bone development. Repositório Alice
GUARNIERI, P. C.; PAGNUSSATT, H.; ANIECEVSKI, E.; DAL SANTO, A.; LEITE, F.; VALENTINI, F. D. A.; FACCHI, C. S.; ZACCARON, G.; BOSETTI, G. E.; ROSSATTO, G.; BOIAGO, M. M.; TAVERNARI, F. de C.; ARTONI, S. M. B.; PETROLLI, T. G..
Abstract: The purpose of this study was to evaluate infrared beak trimming versus hot-blade beak trimming on performance, organ and bone development of laying pullets, using 240 birds, at 0-16 weeks of age, from two strains (white layer - Hy-Line W36 and brown layer - Hy-Line Brown). Infrared debeaking was performed on the first day of life in the hatchery, whereas hot-blade beak trimming was performed at eight days of age. Zootechnical performance at 6, 9, 12 and 15 weeks of age was analyzed. At the end of the trial, one Bird per experimental unit was euthanized for liver, gizzard, proventriculus, heart and small intestine relative weight evaluation. Both tibiotarsus were collected to measure bone breaking resistance, bone mineral content and bone...
Tipo: Artigo de periódico Palavras-chave: Bem-estar animal; Densitometria; Debeaking; Avicultura; Poedeira Comercial; Debicagem; Animal welfare; Densitometry; Poultry; Laying hens.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1126722
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Comparison of the Dietary Supplementation of Lactobacillus plantarum, and Fermented and Non-Fermented Artemisia Annua on the Performance, Egg Quality, Serum Cholesterol, and Eggyolk-Oxidative Stability During Storage in Laying Hens Rev. Bras. Ciênc. Avic.
Lee,AR; Niu,KM; Lee,WD; Kothari,D; Kim,SK.
ABSTRACT Artemisia annua L. is a widely distributed medicinal plant and well-known for treating malaria due to the artemisinin content. We previously found enhanced antioxidant and antibacterial activities of Lactobacillus plantarum-fermented A. annua dried leaves in vitro. The present study compared the effects of the dietary supplementation of L. plantarum, fermented (FA) or non-fermented (NFA) A. annua on laying performance, egg quality, serum cholesterol, and egg yolk oxidative stability during storage in 40-weeks-old Hy-Line Brown layers. In total, 180 layers were randomly allocated into four treatments for 6 weeks: basal diet (CON), basal diet + 0.5% L. plantarum only (LO), basal diet + 0.5% NFA, and basal diet + 0.5% FA. Each treatment comprised...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Artemisia annua L; Egg quality; Lactobacillus plantarum; Laying hens; Malondialdehyde.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000400311
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Concentrations and Settling Rates of Particulate Matter in Laying Hen Barns in the Hot Climatic Region of Cameroon CIGR Journal
Ngwabie, Ngwa Martin.
Particulate matter (PM) serves as a carrier of adhesive gaseous compounds, and may result to an underestimation of gas emissions from livestock barns when only filtered air samples are analysed. PM concentrations have hardly been studied in the unique livestock production system of Sub-Saharan Africa. This study was aimed at generating baseline data for PM (total suspended particulates) concentrations and settling rates in laying hen barns with cemented floors and wood shavings added as an initial bedding material. Measurements were conducted in two naturally ventilated laying hen barns in Cameroon; a barn with 4 months old hens that had just stated laying eggs and a barn with 18 months old egg laying hens. PM concentration was determined gravimetrically...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Air pollution; Climate change; Dust; Laying hens; Particulate matter; Total suspended particulates; Cameroon..
Ano: 2020 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5566
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Critical points on egg production: causes, importance and incidence of eggshell breakage and defects Ciência e Agrotecnologia
Mazzuco,Helenice; Bertechini,Antonio Gilberto.
The occurrence of broken eggs directly depends on the quality of the shell. It is important to consider that the problem of broken eggs is not due to a single factor but a combination of factors. Shell defects, irregularities in shell shape, texture and surface are commonly observed during a regular egg laying cycle and the causes are varied. The incidence of downgraded eggs still represents an important source of economic loss for the egg industry due to products damage and need for further processing. It is possible to obtain significant reduction in the number of eggs lost due to the inferior quality of the shell attempting to an adequate nutrition, disease control, good management practices, and use of genetic lines with higher quality eggshell traits.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Defective shell; Egg industry; Eggshell quality; Laying hens; Shell integrity.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000100001
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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
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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
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Digestible threonine:digestible lysine ratio in diets for brown laying hens from 42 to 54 weeks of age, Repositório Alice
LELIS, G. R.; ALBINO, L. F. T.; CALDERANO, A. A.; BRITO, C. O.; RIBEIRO JUNIOR, V.; TAVERNARI, F. de C..
Tipo: Separatas Palavras-chave: Poedeira; Treonina digestível; Galinha para postura; Dieta; Lisina; Lysine; Laying hens.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1014194
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Digestible valine:digestible lysine ratio in diets for brown laying hens from 42 to 54 weeks of age. Repositório Alice
LELIS, G. R.; ALBINO, L. F. T.; CALDERANO, A. A.; BRITO, C. O.; TAVERNARI, F. de C.; MAIA, R. C..
Tipo: Separatas Palavras-chave: Poedeira; Valina digestível; Galinha para postura; Dieta; Lisina; Lysine; Laying hens.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1014198
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Economic effects of avian influenza on egg producers in Turkey Rev. Bras. Ciênc. Avic.
Demircan,V; Yilmaz,H; Dernek,Z; Bal,T; Gül,M; Koknaroglu,H.
This study determined the economic effects of avian influenza on the egg-production sector of Afyon Province, Turkey. Economic indicators were compared before and during the avian influenza outbreak. A questionnaire was conducted with 75 poultry farmers. Farms were divided into three groups according to their size. The profitability of the three farm size groups was compared during two study periods: before and during the avian influenza outbreak. The results indicate that, as compared to previous levels, farms experienced significantly reduced incomes during the avian influenza episode. While net income and profit margin were found to be negative in all three farm groups during the avian influenza period, only group I showed economic loss prior to avian...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Avian influenza; Economic analysis; Laying hens.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000300010
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Efeito da nutrição de poedeiras sobre os parâmetros da qualidade interna de ovos comerciais armazenados em diferentes temperaturas. Repositório Alice
ALVES, D. A.; AVILA, V. S. de; SILVA, S. N. da; FORGIARINI, J.; CONTREIRA, C. L.; XAVIER, E. G.; KRABBE, E. L..
Tipo: Separatas Palavras-chave: Poedeira Embrapa 51; Nutrição animal; Galinha para postura; Ovo; Qualidade; Animal nutrition; Laying hens; Egg production.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1064274
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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
Registros recuperados: 75
Primeira ... 1234 ... Última
 

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