Data/hora: 02/06/2024 18:21:02

Provedor de dados: 	70	
País: 	Brazil	
Título: 	Determination of thermal comfort zone for early-stage broilers	
Autores: 	Cândido,Márcia G. L.; Tinôco,Ilda De F. F.; Pinto,Francisco de A. de C.; Santos,Nerilson T.; Roberti,Ricardo P.	
Data: 	2016-10-01	
Ano: 	2016	
Palavras-chave: 	Poultry; Thermal comfort; Animal performance; Cold stress.	
Resumo: 	ABSTRACT Environmental temperatures currently considered within comfort zone for broiler rearing may be misleading or even obsolete from actual values. Some factors such as animal genetics, nutrition and poultry management, mainly acclimatization to tropical and subtropical conditions, influence in determining the comfort zone for birds. This study aimed to evaluate the effects of five different thermal environments on animal welfare and rearing performance of broiler chickens, setting an ideal temperature range (comfort zone) for each of the first three weeks of poultry breeding. The chicks (375) were randomly placed into five climatic chambers set to distinct thermal conditions, being: one as recommended by the literature, another as stated by Cassuce and the other three at different levels of apparent cold stress (mild, moderate and severe). The findings showed that best poultry performance and ideal comfort indices (based on Black Globe Humidity and Temperature Index) were achieved within a temperature range between mild cold and Cassuce comfort temperature, rather than those previously reported in the literature.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000500760	
Editor: 	Associação Brasileira de Engenharia Agrícola	
Relação: 	10.1590/1809-4430-Eng.Agric.v36n5p760-767/2016	
Formato: 	text/html	
Fonte: 	Engenharia Agrícola  v.36 n.5 2016	
Fonte: 	info:eu-repo/semantics/openAccess