Ms Geraldine O'Sullivan:

They are using them and there are different kinds of mechanisms of support. Again, this comes back to the fact that we have a pasture-based system. We have a very different system, so the economics are different. If this approach is being used in an indoor feeding system, there will be much higher reductions in methane emissions than when animals are only housed for certain periods, which is the case here. If the animals are being fed at different times, the methane abatement is reduced, which creates a much higher cost difficulty.