Emissão de amônia de galpões de frangos de corte com ventilação natural e mecânica no Brasil

Translated title of the contribution: Ammonia emissions from a naturally and a mechanically ventilated broiler house in Brazil

Luciano B. Mendes*, Ilda F.F. Tinoco, Nico W.M. Ogink, Keller S.O. Rocha, Jairo A. Osorio S., Marilú S. Santos

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

9 Citations (Scopus)

Abstract

This study was conducted with the aim of monitoring NH3 emissions from a mechanically and a naturally ventilated broiler house (MVB and NVB, respectively) and calculate their ammonia emission factors (fNH3). Bird stocking density was 13.5 and 11.1 birds m-2 for the MVB and NVB, respectively. The marketing age was 43 days and bedding consisted of dried coffee husks in its first time of use. Ventilation rates were calculated with the metabolic carbon dioxide mass balance method. Values of fNH3 were 0.32 ± 0.10 and 0.27 ± 0.07 g bird-1 d-1for the MVB and NVB, respectively, and are in agreement to what was presented in other studies performed under similar conditions. The fNH3 estimated on yearly basis was 58 g bird-place-1 year-1. It was concluded that the different types of ventilation system between the studied broiler barns did not significantly affect emissions in the modeling process. The results obtained help providing reliable methodology for the determination of a solid database on NH3 emission factors for tropical conditions that can be used for future inventories, when performed in a sufficient number of barns that is representative for the Brazilian scenario.

Translated title of the contributionAmmonia emissions from a naturally and a mechanically ventilated broiler house in Brazil
Original languagePortuguese
Pages (from-to)1179-1185
Number of pages7
JournalRevista Brasileira de Engenharia Agricola e Ambiental
Volume18
Issue number11
DOIs
Publication statusPublished - 1 Nov 2014

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