The objective of this project is to explore ways to enhance the performance of covered anaerobic ponds to increase methane production, reduce odour emission, and improve digestate quality. The methane production and effluent quality of pond systems on two pig farms will be characterised and compared. One farm uses a fat-rich dairy by-product in the pig feed and reports anaerobic pond issues, while the other farm does not use the fat-rich dairy by-product and reports no issues.