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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..
2016
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/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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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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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..
2016
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Poedeira; Bem-estar animal; Sistema de aviário com camas; Galinha para postura; Criação animal; Parasito; Helminto; Endoparasites; Helminths; Animal husbandry; Animal welfare; Laying hens; Aviaries.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/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 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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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..
2014
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Poedeira; Treonina digestível; Galinha para postura; Dieta; Lisina; Lysine; Laying hens.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/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..
2014
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Poedeira; Valina digestível; Galinha para postura; Dieta; Lisina; Lysine; Laying hens.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/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..
2016
Tipo: Artigo em anais de congresso (ALICE) 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/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
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Effect of dietary energy concentration on performance parameters and egg quality of white leghorn laying hens Rev. Bras. Ciênc. Avic.
Ribeiro,PAP; Matos Jr,JB; Lara,LJC; Araújo,LF; Albuquerque,R; Baião,NC.
An experiment was carried out with 1200 23-week-old white Dekalb commercial laying hens to investigate production responses, egg quality, and energy utilization of laying hens fed different dietary energy levels at the beginning of lay. Birds were housed and divided in five groups of 240 birds according to dietary apparent metabolizable energy corrected for nitrogen (AMEn): 2700 kcal/kg; 2775 kcal/kg; 2850 kcal/kg; 2925 kcal/kg; and 3000 kcal/kg, with six replicates of 40 birds each. Birds were fed the experimental diets based on corn and soybean meal for 17 weeks. Diets were iso-nutritive, except for energy level. Increasing AMEn levels had a negative effect on egg production and egg mass (p≤0.05). AMEn levels did not influence body weight, egg weight, or...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Energy conversion; Egg quality; Laying hens.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400007
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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
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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
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Effect of Fennel (Foeniculum Vulgare Mill.) Used as a Feed Additive on The Egg Quality of Laying Hens Under Heat Stress Rev. Bras. Ciênc. Avic.
Gharaghani,H; Shariatmadari,F; Torshizi,MA.
In this study, one hundred and twenty 40-wk-old White Leghorn laying hens were submitted to two different thermal conditions (24° C vs. 34° C) and were fed three levels (0, 10, or and 20 g/kg of diet)of fennel fruits (Foeniculum vulgare Mill.) as a feed additive in. This study was carried out according to a factorial design consisting of two temperatures and three fennel levels with five 5 replicates each (n = 2 × 3 × 5). Performance, egg production, egg quality, and oxidative product levels (malondialdehyde, MDA, and carbonyl) in the eggs were measured before and after heat exposure. The results showed that the tested temperatures did not affect egg production (p>0.05), but the production of eggs with broken shell and feed intake were affected by heat...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fennel; Heat stress; Laying hens; Antioxidant; Feed.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000200199
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Effect of oils sources on blood lipid parameters of commercial laying hens Rev. Bras. Ciênc. Avic.
Murata,LS; Ariki,J; Machado,CR; Silva,L da PG da; Rezende,MJM.
The experiment was carried out to verify if total cholesterol, HDL-cholesterol and triacylglicerol plasma levels are affected when laying hens are fed rations containing different dietary oil sources. One hundred sixty 50 week-old hens, assigned to four treatments with five replicates using 8 hens per replicate were used. The experimental period was of 84 days divided in 3 cycles of 28 days each. In the last day of each cycle, blood samples of 2 hens per replicate were randomly choose and blood samples were collected. On the other hand, blood was also collected at 7 am, 11 am and 3 pm aiming to study the daily changes of these lipids. Blood lipid parameters were not affected by different dietary oil sources (p > 0.05); however, HDL-cholesterol did...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Blood lipids; Diet; Laying hens; Oil source.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000300008
Registros recuperados: 67
Primeira ... 1234 ... Última
 

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