JBS Australia has commissioned an $11.1 million project to run two of its abattoirs on biogas.

"There are definitions and criteria around deforestation yet to be hammered out but where this falls will have big implications to beef."

Andrew Rushton, wife Jess, children Brodie, 4, and Grace, 2, own and operate Benlock Jerseys with his parents, Bryan and Lee.

Offers of more than $12 million are being sought on the 9626 acre farming and grazing property Midgee.