Sheep methane study - new project

Sheep methane study - exciting new project with the university of melbourne

This six-month trial represents an exciting step forward for our organisation as we broaden our research efforts into the livestock sector, building on our strong foundation in cropping and mixed-farming systems.
The study will take place from September 2025 on a commercial sheep property close to the University of Melbourne's Dookie Campus. 

As part of the study, two hundred weaned lambs will be divided into four groups to test the effect of feed additives on growth, methane emissions, and meat quality. 

The lambs have been on pasture and have recently been moved to a containment area where they will begin to be supplementary fed. 

Once the trial begins the treatments include:

• Control (no additive)
• Agolin
• Polygain
• Agolin + Polygain

Agolin is a proprietary blend of plant-based essential oils that may enhance digestion and animal performance, while also showing potential to reduce methane emissions by modulating rumen fermentation. Polygain is a sugarcane-derived liquid supplement rich in polyphenols, which may improve feed efficiency and lower enteric methane production.

Throughout the trial, University of Melbourne scientists will lead the measurement program, supported by Riverine Plains staff. There will be an OptiWeigh used to assess the weight gain and measurements additional to the weight will include wool and blood sampling, methane monitoring using GreenFeed units, and ultimately meat quality assessments at a commercial abattoir.

This project—Producer and consumer tested solutions for emissions reduction in livestock—marks a new chapter for Riverine Plains. We are excited to extend our research partnerships and provide members with insights into practical, on-farm solutions for emissions reduction that are backed by science.

For more information, please contact Jane McInnes at jane@riverineplains.org.au.