2005
DOI: 10.1590/s1415-43662005000400033
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Índice térmico ambiental de produtividade para frangos de corte

Abstract: Com o objetivo de desenvolver um índice térmico ambiental de produtividade para frangos de corte - IAPfc, que reúna, em um único valor, os efeitos da temperatura, umidade e velocidade do ar, conduziu-se um experimento com frangos Avian Farm, machos, criados de 1 a 21 dias de idade, em galpões convencionais com condições climáticas naturais e dos 22 aos 42 dias (abate) em câmaras climáticas. Os tratamentos compreenderam combinações de 16, 20, 26, 32 e 36 ºC de temperatura (t), com 20, 34, 55, 76 e 90% de umidad… Show more

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Cited by 46 publications
(57 citation statements)
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(1 reference statement)
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“…The temperature humidity index (THI) introduced by Thom (1959) only requires measurement of T db and wet bulb temperature (T wb ). In Brazil, as in most of South America, THI is the most widely used index due to its simplicity (Medeiros et al, 2005;Furtado et al, 2006;Oliveira et al, 2006;Jácome et al, 2007;Menegali et al, 2009;Nascimento et al, 2011;Menegali et al, 2013).…”
Section: Introductionmentioning
confidence: 99%
“…The temperature humidity index (THI) introduced by Thom (1959) only requires measurement of T db and wet bulb temperature (T wb ). In Brazil, as in most of South America, THI is the most widely used index due to its simplicity (Medeiros et al, 2005;Furtado et al, 2006;Oliveira et al, 2006;Jácome et al, 2007;Menegali et al, 2009;Nascimento et al, 2011;Menegali et al, 2013).…”
Section: Introductionmentioning
confidence: 99%
“…A pouca variabilidade dos valores observados em relação às médias pode ser constatada em função dos coeficientes de variação para as parcelas e subparcelas que foram, respectivamente, de 0,96% e 2,51% para o ITGU de 1,69% e 3,0%, para a CTR. (MEDEIROS, 2001). A umidade relativa observada neste estudo esteve sempre dentro dos valores de conforto térmico e pouco variou entre o ambiente interno e o externo.…”
Section: Resultsunclassified
“…The relevance curves for the output variables ( Figure 2) were developed based on research conducted (Thon et al, 2010;Lira et al, 2009;Medeiros, 2001) and books about the breed adopted in this study (Cobb, 2012), which provided information about the productive responses in the three initial weeks, four air temperature classes, totaling 12 rules, which include the conditions for the first three weeks of bird life.…”
Section: Fuzzy Model Developmentmentioning
confidence: 99%
“…However, production systems developed in these countries have been introduced in Brazil without any significant change, leading the poultry producers to a reduction in production competitiveness, besides imposing heat stress situations on the birds (Medeiros, 2001;Almeida & Passini, 2013).…”
Section: Introductionmentioning
confidence: 99%
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