Consulta: subjectFacets:"THI"
Registros recuperados: 5
Data/hora: 13/06/2024 08:23:02

CLIMATE CHANGE AND RURAL WORKERS THERMAL COMFORT: HISTORICAL AND FUTURE IMPACTS
Provedor de dados: 70
Autores: Amaro,André L. N.; Yanagi Junior,Tadayuki; Yanagi,Sílvia de N. M.; Ferraz,Gabriel A. E S.; Campos,Alessandro T.
Abstract The aim of the present research was to propose a bioclimatic mapping to classify the thermal comfort and discomfort of rural workers within the state of Minas Gerais, considering historical and future scenarios. Monthly historical series (1976-2014) of minimum, mean and maximum temperature-humidity index (THI), determined through the values of air temperature (minimum, mean and maximum) and relative humidity from 48 weather stations located in the state of Minas Gerais were used to analyze the trends through Mann-Kendall and linear regression assays. The bioclimatic mapping of human comfort, obtained via geostatistical analysis, was developed as a function of the minimum, medium and maximum THI for the historical period (1976-2014) and future...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Human; Biometeorology; Human thermal comfort; THI; Time series.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000200173

Microclima e índices de conforto térmico em sistemas de integração lavoura-pecuária-floresta no município de Campo Grande, Mato Grosso do Sul.
Provedor de dados: 14
Autores: KARVATTE JUNIOR, N.; ALVES, F. V.; KLOSOWSKI, E. S.; ALMEIDA, R. G. de; TSUTSUMI, C. Y.; OLIVEIRA, C. C.
O objetivo deste trabalho foi avaliar índices de conforto térmico em sistemas de integração lavoura-pecuária-floresta, com eucalipto em arranjos de 14x2m (ILPF-1) e de 22x2m (ILPF-2) e árvores nativas dispersas com 5 árvores/ha-1 (ILPF-3), no Município de Campo Grande, Mato Grosso do Sul. O experimento foi conduzido na Embrapa Gado de Corte, em Campo Grande, MS, de julho a setembro de 2013. As avaliações foram realizadas mensalmente, em quatro dias consecutivos, em três horários (09h00, 12h00 e 15h00; GMT -04h00). Foram determinadas a temperatura do ar (°C), temperatura de globo negro (°C), temperatura de bulbo úmido (°C), umidade relativa do ar (%) e velocidade do vento (m s-1). Foram calculados o Índice de Temperatura e Umidade (ITU), Índice de...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bem-estar animal; Estresse térmico; Sistemas de produção em integração; Integrated systems; THI; Animal welfare; Heat stress; Shade.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1056742

Data mining to estimate broiler mortality when exposed to heat wave
Provedor de dados: 63
Autores: Vale,Marcos Martinez; Moura,Daniella Jorge de; Nääs,Irenilza de Alencar; Oliveira,Stanley Robson de Medeiros; Rodrigues,Luiz Henrique Antunes.
Heat waves usually result in losses of animal production since they are exposed to thermal stress inducing an increase in mortality and consequent economical losses. Animal science and meteorological databases from the last years contain enough data in the poultry production business to allow the modeling of mortality losses due to heat wave incidence. This research analyzes a database of broiler production associated to climatic data, using data mining techniques such as attribute selection and data classification (decision tree) to model the impact of heat wave incidence on broiler mortality. The temperature and humidity index (THI) was used for screening environmental data. The data mining techniques allowed the development of three comprehensible...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: THI; Broiler production; Environmental data.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000300001

Potential summer heat-stress of sheep at Greek husbandry areas of different landscape
Provedor de dados: 111
Autores: Panagakis, Panagiotis.
During the last years and due to its economic importance sheep farming expands at flat land areas in Greece exhibiting less favourable climatic conditions especially during summer. It is therefore justifiable to assess the potential summer heat-stress of sheep growing at areas of different landscape. Potential heat-stress of sheep during summer was studied at three Greek husbandry areas of different landscape, namely Larissa - flat land, Ioannina - semi-mountainous and Trikala Korinthias - mountainous. Indices used were the night hours during which ambient temperature was below 21ºC, the Temperature Humidity Index (THI), the time percentage (%) within predefined heat-stress categories and the THI-hrs index. Overall, the area of Larissa exhibited the worst...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Potential heat-stress of sheep; Landscape; Average ambient summer temperature; THI; THI-hrs; Greece Citation:.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3750

Influence of Water Temperature and Heat Stress on Drinking Water Intake in Dairy Cows
Provedor de dados: 117
Autores: González Pereyra,Ana Valeria; Maldonado May,Verónica; Catracchia,Carlos Guillermo; Herrero,María Alejandra; Flores,Myriam Celina; Mazzini,Mariana.
Grazing animals are exposed to heat stress and there should be conditions to facilitate water intake. Three experiments were carried out to determine the relationship between water intake, water temperature, and heat stress for Holstein pastured dairy cows. Experiment 1: Drinking behavior of 13 cows was evaluated (for 3 consecutive days) and four time periods were established according to the temperature humidity index (THI): (H1:05:00 to 10:59 h, H2:11:00 to 16:59 h, H3:17:00 to 22:59 h, and H4:23:00 to 04:59 h). The highest mean percentage of drinking bouts (53.2%) was registered in H2 (THI: 74.91 to 83.95). Drinking bout means among time periods were different (p &lt; 0.05), thus showing that heat stress conditions influence drinking behavior....
Tipo: Journal article
Palavras-chave: Drinking behavior; Summer time; THI; Grazing dairy farms.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000200017