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Title: Acoustic environment and gas production in different growing-finishing swine facilities
Keywords: Ambience
Animal welfare
Air quality
Animal environment
Sound pressure level
Acoustic environment
Issue Date: Dec-2016
Publisher: Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP)
Faculdade de Ciências Agrárias e Veterinárias (FCAV)
Citation: ANDRADE, R. R. et al. Acoustic environment and gas production in different growing-finishing swine facilities. Engenharia Agrícola, Jaboticabal, v. 36, n. 6, p. 953-961, Oct./Dec. 2016.
Abstract: This study aimed to evaluate gas levels and the acoustic environment (noise) of growing-finishing swine in different facilities, one composed of shallow pool (SP) and another of partially slatted floor (PSF). Sensors and a sound level meter were used to measure gas concentrations (CO2 and NH3) and noise at 1.50 meters above the ground and at animal height. Data on gas concentrations and noise levels were measured at 9am, 12pm, and 3 pm. Results showed differences (P<0.05) between noise levels at animal height and gas concentrations measured in relation to stall type and data collection time. The highest noise values were found in the shallow pool stall, measured at animal level. The highest NH3 (13 ppm) and CO2 (1174.5 ppm) values were observed in the shallow pool stall at 3pm. The stall floor with shallow pool seems to provide greater welfare in relation to noise level for growing-finishing swine.
Appears in Collections:DEG - Artigos publicados em periódicos

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