Identification of risk factors for sub-optimal housing conditions in Australian piggeries: part 3. Environmental parameters

Banhazi, T. M. and Seedorf, J. and Rutley, D. L. and Pitchford, W. S. (2008) Identification of risk factors for sub-optimal housing conditions in Australian piggeries: part 3. Environmental parameters. Journal of Agricultural Safety and Health, 14 (1). pp. 41-52. ISSN 1074-7583

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Abstract

[Abstract]: Between autumn 1997 and autumn 1999, we measured ventilation rates (using a CO2 balance method), air temperatures, and relative humidity (using self-contained dataloggers with built-in sensors) in 160 pig housing facilities in Queensland, South Australia, Victoria, and Western Australia, in each case over a 60 h period. In some buildings, the internal air velocities above the animals were also recorded. While the monitoring instruments were being set up, a detailed questionnaire was used to collect data on major housing features and management factors. This information was statistically analyzed to quantify the effects of housing and management factors on the resulting environment conditions using a multifactorial analysis. The overall mean air temperature, relative humidity, internal air velocity, and ventilation rate were 20.3°C, 58.9%, 0.12 m s-1, and 663.9 m3 h-1 500 kg-1 live weight, respectively, across all buildings. Internal building temperature and humidity were affected statistically by the type of insulation material used, the classification of buildings, and external climatic conditions. Ventilation rates were primarily affected by the type of ventilation system used, height (size) of ventilation openings, stocking density (kg m-3), and length, width, and height of buildings. These findings should aid the development of strategies for the industry to improve environmental control in piggery buildings.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version deposited in accordance with the copyright policy of the publisher (ASABE). Copyright 2008 ASABE ISSN 1074-7583.
Depositing User: epEditor USQ
Faculty / Department / School: Current - USQ Other
Date Deposited: 05 Jun 2011 12:22
Last Modified: 29 Aug 2014 04:01
Uncontrolled Keywords: environmental survey; farm building; humidity; risk factors; statistical models; temperature; ventilation; animal housing; animal husbandry
Fields of Research (FOR2008): 07 Agricultural and Veterinary Sciences > 0702 Animal Production > 070203 Animal Management
09 Engineering > 0999 Other Engineering > 099901 Agricultural Engineering
07 Agricultural and Veterinary Sciences > 0702 Animal Production > 070207 Humane Animal Treatment
Socio-Economic Objective (SEO2008): B Economic Development > 83 Animal Production and Animal Primary Products > 8303 Livestock Raising > 830308 Pigs
URI: http://eprints.usq.edu.au/id/eprint/18897

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