Fertility is the number one predictor of profit in suckler cow systems. As input costs continue to rise we will need to reach optimum fertility rates within the bounds of what our environment can provide. Rob Havard from Phepson Angus will show how the teachings of Dr Jan Bonsma can help us understand the difference between inherent fertility and adaptive fertility and how this is key to running a profitable, regenerative, grass-fed suckler cow system.