Odour emissions from tunnel-ventilated broiler sheds: case study of nine Queensland farms
Mark Dunlop A B , Erin Gallagher A and Jae Ho Sohn AA State of Queensland, Department of Employment, Economic Development and Innovation, Agri-Science Queensland, PO Box 102, Toowoomba, Qld 4350, Australia.
B Corresponding author. Email: mark.dunlop@deedi.qld.gov.au
Animal Production Science 50(6) 546-551 https://doi.org/10.1071/AN09188
Submitted: 8 December 2009 Accepted: 12 February 2010 Published: 11 June 2010
Abstract
Odour emission rates were measured from nine tunnel-ventilated broiler farms in south-eastern Queensland, Australia. At one farm, odour emission rates were measured over two sequential batches approximately weekly, while at the remaining farms, odour emission rates were measured just before the first pickup (around Day 35 of the batch) when bird liveweight was greatest and peak odour emission rates were expected. Odour samples were analysed using dynamic olfactometry (to AS/NZS 4323.3:2001), and an artificial olfaction system was used to continuously monitor odour emission rates at one farm. Odour emission rates ranged from 330 to 2960 ou/s per 1000 birds and from 0.19 to 2.12 ou/s.kg, with a significant amount of variability observed throughout the batch and throughout each sampling day. While the wide range in odour emission rates was primarily due to changes in bird liveweight and ventilation requirements, other factors were also involved. The artificial olfaction system proved useful for quantifying the range and variability of odour emission rates, especially when olfactometry analysis was impractical.
Additional keywords: artificial olfaction system, electronic nose, emission rate, olfactometry.
Acknowledgements
This research was undertaken through the Australian Poultry Cooperative Research Centre in collaboration with researchers at the University of New South Wales – Gavin Parcsi, Xinguang Wang and Richard Stuetz; Queensland University of Technology – Rob Modini and Zoran Ristovski; and the Department of Primary Industries, Victoria – Ian McCauley and Brett Matthews.
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