Consulta: creatorFacets:"Silva,Maria A. J. G."
Registros recuperados: 2
Data/hora: 12/06/2024 02:33:20

Genetic fuzzy system for prediction of respiratory rate of chicks subject to thermal challenges
Provedor de dados: 91
Autores: 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

Spatial variability of enthalpy in rabbit house with and without ridge vent
Provedor de dados: 91
Autores: 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