Lighting Programs
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. FORM OF LAYING HENS EGGS IN THE FUNCTION OF DIFFERENT LAMPS USED IN PRODUCTION
ABSTRACT: Lighting, either in its intensity or in its luminous spectrum, affects the eggs quality. This study evaluated the effect of four lamps (sodium vapor lamp, mercury vapor lamp, fluorescent lamp and incandescent lamp) that have different luminous spectra in the form of commercial poultry eggs. For this, 60 laying hens of the same age were separated fo
Eng. Agríc.. Publicado em: 2017-09
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2. Activities and Ergonomics of Workers in Broiler Hatcheries
The objective this study was to assess ergonomic factors, posture and biomechanics of workers of a broiler egg hatchery. The analysis of ergonomic factors was based on physical work load, thermal environment, and exposure to light and noise. The posture of workers was analyzed using photographic records which were evaluated by the software program OWAS (Ovak
Rev. Bras. Cienc. Avic.. Publicado em: 2015-06
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3. Influence of artificial lighting on the performance and egg quality of commercial layers: a review
In Brazil, the egg production chain produces fresh eggs for the consumer market and for processing. Layers are housed in battery cage systems. Rearing and development farms are separate from egg-production farms. Considering the recent advance of Brazilian chicken egg production, scientific knowledge on management practices are required to disseminate and to
Rev. Bras. Cienc. Avic.. Publicado em: 2014-12
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4. Limestone particle size and artificial light for laying hens in the second laying cycle
The experiment was conducted to evaluate the effects of limestone particle size and the use of artificial light for laying hens in the second laying cycle. We used 240 Hisex White laying hens at 82 weeks of age in a completely randomized design in a 5 × 2 factorial arrangement, resulting in 10 treatments with 4 replicates of 6 birds. The variables were the
R. Bras. Zootec.. Publicado em: 2013-07
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5. Curtain color and lighting program in broiler production: I - general performance
The objective of the present study was to evaluate mortality and performance, darkling beetle population (Alphitobius diaperinus), light intensity, electrical energy consumption and economic efficiency of broilers reared under two lighting programs (nearly continuous or intermittent) and two curtain colors (yellow or blue). The experiment was conducted betwe
Revista Brasileira de Zootecnia. Publicado em: 2011-09
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6. Curtain color and lighting program in broiler production: II. carcass and parts yield and abdominal fat deposition
The objective of the present study was to evaluate carcass and parts' yield, abdominal fat deposition and breast and foot pad blisters of broilers reared under two lighting programs (nearly continuous or intermittent) in broilers houses with yellow and blue curtains. The experiment was conducted between June, 2004 and May, 2005. Six flocks were sequentially
Revista Brasileira de Zootecnia. Publicado em: 2011-09
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7. Curtain color and lighting program in broiler production: III - thermal comfort
The objective of this study was to evaluate the thermal comfort of broilers reared under two lighting programs (almost continuous and intermittent) in broiler houses with yellow or blue lateral curtains. The experiment was carried out from June 24, 2004 until May 12, 2005. Six consecutive flocks were housed in four 12 × 10 m broilers houses internally divid
Revista Brasileira de Zootecnia. Publicado em: 2011-09
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8. Atividade de meliponíneos (Hymenoptera: Apidae) em ambiente protegido / Meliponin activity (Hymenoptera: Apidae) into protected environment
In order to use tribe Meliponin bees into protected environment pollination programs, this work has aimed to evaluate different Meliponin species into greenhouse. The study was made at UFV, using a greenhouse, with an area of 115,2 m, 3,5 m height in the sides and 5,2 m in the upper part. Initially six Meliponin species were studied (Melipona quadrifasciata,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2009
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9. SEGMENTING TECHNIQUES OF IMAGES IN THE GENERATION OF PROGRAMS FOR MACHINERY OF COMMAND NUMERICAL / TÉCNICAS DE SEGMENTAÇÃO DE IMAGENS NA GERAÇÃO DE PROGRAMAS PARA MÁQUINAS DE COMANDO NUMÉRICO
This work describes a tool for extraction of features in 2D images applied to industrial automation. The method uses techniques implemented targeting of images into pieces model as detection of edges in the extraction of spatial coordinates of the image and import applications in CAD (Computer-Aided Design) for the generation of programmers for Computer Nume
Publicado em: 2008
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10. Production performance and egg quality of quails (Coturnix japonica) during several periods of the day
Three experiments were carried out to analyze the performance and egg quality of Japanese quails throughout the day when submitted to different lighting programs. In each experiment, birds were submitted to a period of 28 days for adaptation to the lighting program. During the following three days, each day - from 7 am to 7 pm or 9 pm - was divided into six
Revista Brasileira de Ciência Avícola. Publicado em: 2006-09
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11. AvaliaÃÃo de programa de iluminaÃÃo para poedeiras leves e semi-pesadas / Evaluation of lighting program for light and semiheavy layers
To evaluate the effect of lighting programs for light and semi-heavy layers, two experiments at the Department of Animal Science of the Federal University of Lavras were conducted. An intermittent lighting program and another with only natural lighting on days of growing lighting as compared with a continuous program by utilizing 288 light and 192 semi-heavy
Publicado em: 2003
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12. AvaliaÃÃo de programa de iluminaÃÃo em cordonas japonesas (Coturnix japonica) / Evaluating the lighting programs in quails (Coturnix coturnix)
Com o objetivo de avaliar o efeito de programas de iluminaÃÃo contÃnuo e intermitentes sobre a produÃÃo e qualidade de ovos de codornas (Coturnix coturnix) criadas em galpÃo aberto, este trabalho, realizado no Departamento de Zootecnia da Universidade Federal de Lavras â MG, utilizou 720 codornas de 36 semanas de idade, durante 5 perÃodos de 28 dias,
Publicado em: 2003