When it comes to the smelliest farm animal pigs would probably feature quite high on people's lists.

However, it seems pigs' smelly reputation is a little unjustified in free range operations.

The University of Southern Queensland's National Centre for Engineering in Agriculture has finished a two year study which has found noise, odour and dust pollution from free-range piggeries to be low.

To study the smell the project used the standard olfactory procedures, which involves collection of smells which are presented to a panel of experts or 'trained noses', to determine odour units.

Which Associate Professor Thomas Banhazi says he hopes the results will improve the smelly reputation of piggeries.

"The aim was to get some scientifically benchmarked data so pig producers can use the information when they apply for new piggery approvals from councils and they can also use the information to design some abatement options if needed. "

Industry group Australian Pork Limited funded the study.

 

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