Ms Caroline Garvan:

It is a question of whether we want best practice, and to be able to use the wormers we use now in ten years' time. If we do, we must factor in all the information that is required. We have to understand the life cycle of a parasite, for every species and seasonality. We must look at stocking density, the weather, whether refugia is being practised and grazing management. I suggest that veterinary expertise is needed to do all of that.