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	Provedor de dados Rev. Bras. Ciênc. Avic. (1) Autor Bueno,LGF (1) Carvalho,TMR (1) Lima,KAO (1) Moura,DJ (1) Vercellino,RA (1) Palavra-chave Broiler production (1) Gas emissions (1) Ventilation systems (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2011 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Ammonia emissions in tunnel-ventilated broiler houses Rev. Bras. Ciênc. Avic. Lima,KAO; Moura,DJ; Carvalho,TMR; Bueno,LGF; Vercellino,RA. Gas production in broiler houses and their emissions are closely related to the microclimate established inside the house according to air temperature, humidity, and velocity. Therefore, the internal house environment is influenced by building typology and ventilation system. The objective of the present study was to evaluate ammonia emission rates in broiler houses equipped with different ventilation systems (negative or positive pressure) and litter conditions (new or built-up). The environment of six commercial broiler houses was evaluated internal and external NH3 concentrations. Ventilation rates were recorded to estimate ammonia emission rates. The efficiency of circulation and exhaust fans was assessed, and higher ventilation rates were determined... Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler production; Gas emissions; Ventilation systems. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000400008 Registros recuperados: 1 Primeira ... 1 ... Última

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