I keep traditional breeds of livestock that are suited to low (chemical)-input farming  the ruminants in particular – sheep and cattle – thrive on ‘unimproved permanent pasture’  which is an unflattering way of describing a herb-rich mixture of grasses  forbes and legumes that is not fed synthetic fertilizer to make it grow lush quickly (such synthetically-fertilised pasture risks reduced mineral-uptake and may lead to nutritional deficiency)