Aviaries
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. 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
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 w
Eng. Agríc.. Publicado em: 2021-02
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2. NEURO-FUZZY MODELING OF EYEBALL AND CREST TEMPERATURES IN EGG-LAYING HENS
ABSTRACT Considering the challenges faced by poultry farming, this study aimed to develop a neuro-fuzzy model to predict eyeball and crest temperatures of egg-laying hens based on environmental conditions (dry bulb temperature and relative humidity). To develop the models and simulations, Matlab’s Fuzzy Toolbox® (Anfisedit) was used. Different configurati
Eng. Agríc.. Publicado em: 2021-02
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3. Development and validation of a data logger for thermal characterization in laying hen facilities
RESUMO O monitoramento ambiental em instalações animais, que inclui o armazenamento de dados coletados de forma robusta, prática e viável, é um desafio constante. O objetivo deste estudo foi desenvolver um data logger confiável para monitorar a temperatura e umidade relativa do ar dos aviários e avaliar a adequação do projeto usando instrumentos pad
Rev. bras. eng. agríc. ambient.. Publicado em: 09/09/2019
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4. Diagnosis and validation by computational fluid dynamics of poultry house with negative pressure ventilation
RESUMO A ventilação à pressão negativa em aviários vem sendo utilizada para viabilizar a correção de seus microclimas internos, sendo que pesquisas apontam para a distribuição heterogênea do ar ao longo dos galpões e inadequação das variáveis ambientais às faixas recomendadas para o conforto térmico de aves adultas, especialmente nas horas ma
Rev. bras. eng. agríc. ambient.. Publicado em: 09/09/2019
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5. Thermal comfort monitoring in aviaries by a real-time data acquisition system
RESUMO O conforto térmico no interior de instalações de criação de frangos de corte é essencial na obtenção de bons resultados nesta atividade de produção. A avaliação das condições termodinâmicas adequadas requer a medição e controle, geralmente implicando em custos e manutenção especializada. Neste trabalho, objetivou-se monitorar a dist
Rev. bras. eng. agríc. ambient.. Publicado em: 12/08/2019
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6. PERTINENCE CURVES IN FUZZY MODELING OF THE PRODUCTIVE RESPONSES OF BROILERS
ABSTRACT The selection of the type of fuzzy systems pertinence curve allows a better representation of the mathematical model and a smaller simulation error. We aimed to study the effect of pertinence curves in fuzzy modeling of broiler performance, created in different production systems. For the development and testing of fuzzy models, three commercial avi
Eng. Agríc.. Publicado em: 19/06/2019
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7. Mortality prediction of laying hens due to heat waves
RESUMO A mortalidade na produção de galinhas poedeiras é fato preocupante para produtores e constitui considerável perda econômica. Alguns eventos climáticos, como ondas de calor, estão diretamente relacionados ao aumento da mortalidade. O objetivo deste trabalho foi relacionar a ocorrência de ondas de calor com a mortalidade de poedeiras, consideran
Rev. Ciênc. Agron.. Publicado em: 2019-03
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8. Ocorrência de Campylobacter e Enterobacteriaceae em aves silvestres e frangos de corte
RESUMO As aves silvestres podem ser reservatório de bactérias patogênicas e atuar como veiculadoras desses microrganismos para o ambiente, os animais domésticos e o homem. Portanto, o objetivo deste trabalho foi verificar a ocorrência de Campylobacter spp., Yersinia enterocolitica e Salmonella enterica em aves silvestres capturadas nas áreas próximas
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2019-02
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9. USE OF PROTECTION SCREEN IN CONVENTIONAL AVIARIES (CALIFORNIAN TYPE) FOR LAYING HENS
ABSTRACT The objective of this work was to evaluate the thermal environment inside conventional cages for laying hens, with and without the use of protective screens. This research was conducted in two conventional cages (open cage), where each cage had half of its area surrounded by high density polyethylene mesh (HDPE) with a diameter of 2.0 cm, and the ot
Eng. Agríc.. Publicado em: 2019-02
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10. PRODUCTIVE RESPONSES FROM BROILER CHICKENS RAISED IN DIFFERENT COMMERCIAL PRODUCTION SYSTEM - PART II: IMPACT OF CLIMATE CHANGE
ABSTRACT Broiler chickens are homoeothermic animals, i.e., animals capable of maintaining their body temperature within quite narrow limits; therefore, climate change poses a great challenge to poultry. With this in mind, this research aims to evaluate the performance of broilers submitted to different commercial production systems and exposed to different f
Eng. Agríc.. Publicado em: 2019-02
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11. Body Morphometry and Development of the Digestive System of Grey Partridge (Perdix Perdix) Depending on Age and Gender
ABSTRACT The experiment used 100 grey partridges (Perdix perdix L.), which were reared first in confinement and later in aviaries. Partridges were lighter and had greater body dimensions at 36 weeks compared to 12 weeks except for trunk length. Older birds showed greater values (p>0.05) of compactness and lower values of massiveness and long-leggedness. Sign
Rev. Bras. Cienc. Avic.. Publicado em: 2017-12
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12. 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