Feedlot Waste Estimates

An average weight plus, annual throughput and days in the feedlot from the survey was used to calculate the wet and dry weight of the cattle manure using the following equation,

E=BxCxD/1000

Where, B = manure (kg/day) (wet or dry weight) C = yearly throughput of stock in feedlot D = days in feedlot E = total manure produced in one calendar year

Key information for the calculations was obtained on the relationships between animal weight and manure production (dry and wet weight) in feedlots. This was sourced from the Queensland Department of Agriculture and Fisheries webpage, manure production data. The web address for this data is,

https://www.daf.qld.gov.au/environment/intensive-livestock/cattle-feedlots/managing-environmental-impacts/manure-production-data

DISCLAIMER: While all reasonable care has been taken in the preparation of the material in this file, the Western Australian Government and its officers accept no responsibility for any errors or omissions it may contain, whether caused by negligence, or otherwise, or for any loss, however caused, sustained by any person who relies on it. Copyright © Department of Primary Industries and Regional Development, 2017