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	Provedor de dados AGRIAMBI (5) Autor Damasceno,Flavio A. (5) Ferraz,Gabriel A. e S. (3) Ferraz,Patrícia F. P. (2) Saraz,Jairo A. O. (2) Silva,Maria A. J. G. (2) Alvarenga,Lívia A. (1) Brandão,Leidimar F. (1) Cararo,Denis C. (1) Griffante,Greta (1) Hernandez-Julio,Yamid F. (1) Moura,Raquel S. de (1) Nascimento,João A. C. do (1) Oliveira,Carlos E. A. (1) Osorio,Robinson (1) Rocha,Keller S. O. (1) Rodrigues,Rodrigo de L. (1) Tinoco,Ilda F. F. (1) Tobón,Julio C. A. (1) Yanagi Junior,Tadayuki (1) Mais... Palavra-chave Ambience (1) Ammonia concentration (1) Avaliação hidráulica (1) Broiler (1) Computational intelligence (1) Computational simulation (1) Garrafa descartável (1) Geostatistics (1) Golpe de aríete (1) Mapping (1) Natural ventilation (1) Physiological responses (1) Pig farming (1) Rabbit breeding (1) Sound pressure (1) Spatial variability (1) Thermal comfort (1) Welfare (1) Mais... Tipo do documento Info:eu-repo/semantics/article (5) Ano 2019 (2) 2018 (1) 2017 (1) 2007 (1) País Brazil (5) Idioma Inglês (4) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 5 Primeira ... 1 ... Última Genetic fuzzy system for prediction of respiratory rate of chicks subject to thermal challenges AGRIAMBI Ferraz,Patrícia F. P.; Yanagi Junior,Tadayuki; Hernandez-Julio,Yamid F.; Ferraz,Gabriel A. e S.; Silva,Maria A. J. G.; Damasceno,Flavio A.. ABSTRACT The aim of this study was to estimate and compare the respiratory rate (breath min-1) of broiler chicks subjected to different heat intensities and exposure durations for the first week of life using a Fuzzy Inference System and a Genetic Fuzzy Rule Based System. The experiment was conducted in four environmentally controlled wind tunnels and using 210 chicks. The Fuzzy Inference System was structured based on two input variables: duration of thermal exposure (in days) and dry bulb temperature (°C), and the output variable was respiratory rate. The Genetic Fuzzy Rule Based System set the parameters of input and output variables of the Fuzzy Inference System model in order to increase the prediction accuracy of the respiratory rate values. The two... Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler; Computational intelligence; Physiological responses. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000600412 A CFD approach to assess the effects of different opening combinations in poultry houses AGRIAMBI Saraz,Jairo A. O.; Rocha,Keller S. O.; Damasceno,Flavio A.; Tinoco,Ilda F. F.; Osorio,Robinson; Tobón,Julio C. A.. ABSTRACT The aim of this study was to use computational fluids dynamics (CFD) to evaluate hygiene and comfort conditions in function of temperature level and ammonia (NH3) concentration during the night in commercial poultry houses used in Brazil and countries with tropical and subtropical climates. Four models with different curtain heights and different air inlet and outlet positions were used, adopting the open building typology without thermal insulation. The validated CFD model did not present statistical differences from the experimental data, making it possible to use this model to predict the behavior in the four proposed cases. This model can be used to improve the internal conditions of the poultry facilities during the night and could be an... Tipo: Info:eu-repo/semantics/article Palavras-chave: Natural ventilation; Ammonia concentration; Computational simulation. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017001200852 Welfare and spatial distribution of noise levels in swine nursery AGRIAMBI Damasceno,Flavio A.; Oliveira,Carlos E. A.; Ferraz,Gabriel A. e S.; Nascimento,João A. C. do; Saraz,Jairo A. O.; Brandão,Leidimar F.. ABSTRACT The aim of this study was to evaluate the welfare and spatial distribution of noise levels in a swine nursery during the first three weeks of animal’s life. The climatic conditions were evaluated through the dry-bulb temperature (Tdb), relative humidity (RH) and black globe temperature and humidity index (BGHI) and allowed us to observe that the heating system influenced the conditions in the environment, and the use of the air conditioning system did not guarantee animal’s comfort conditions. The analysis on the spatial distribution of noise levels was performed using geostatistics and demonstrated the occurrence of spatial variability inside the facilities. The highest frequencies of noise levels were concentrated between 60 and 70 dB, and the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Pig farming; Thermal comfort; Sound pressure; Spatial variability. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000300196 Spatial variability of enthalpy in rabbit house with and without ridge vent AGRIAMBI Ferraz,Patrícia F. P.; Ferraz,Gabriel A. e S.; Damasceno,Flavio A.; Moura,Raquel S. de; Silva,Maria A. J. G.; Rodrigues,Rodrigo de L.. ABSTRACT The profitability of a rabbit farming system must consider the rabbit’s breed, nutrition, management, sanitation and mainly the thermal environment that the animal will be exposed during the productive period. The aim of this study was to compare the internal thermal environment of two rabbit houses, one with ridge vent and the other without ridge vent. Geostatistical technique was used to evaluate the spatial variability of enthalpy. Data were collected at 48 points in each house during eight days at the end of summer season 2016. Measurements of dry-bulb temperature, relative humidity and wind speed were made for 1 min at three times a day at 7:00 a.m., 12:00 a.m. and 5:00 p.m. In addition, the enthalpy was calculated and a data analysis was... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ambience; Welfare; Rabbit breeding; Geostatistics; Mapping. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000200126 Características construtivas de um carneiro hidraúlico com materiais alternativos AGRIAMBI Cararo,Denis C.; Damasceno,Flavio A.; Griffante,Greta; Alvarenga,Lívia A.. O objetivo deste trabalho foi avaliar um carneiro hidráulico construído com conexões roscáveis de PVC roscáveis e metálicas e garrafa de polietileno tereftálico (PET). O estudo foi realizado no Laboratório de Hidráulica da Universidade Federal de Lavras, MG. Testaram-se tamanhos de câmaras de ar (0,6 e 2,5L), diâmetros de furos da tampa da garrafa (5, 15 e 25mm), tipos de garrafa plástica (descartável de guaraná e descartável e retornável de refrigerante de cola), e posições da válvula de escape (vertical e horizontal), a diferentes pressões de recalque (48,39 a 483,92kPa), a cada 48,39 kPa. O desnível do reservatório de alimentação ao carneiro hidráulico foi mantido constante a 4,36m. Os resultados indicaram que a combinação de características... Tipo: Info:eu-repo/semantics/article Palavras-chave: Avaliação hidráulica; Golpe de aríete; Garrafa descartável. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662007000400001 Registros recuperados: 5 Primeira ... 1 ... Última

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