Derek graduated from the Ontario Veterinary College in 2021 and has practiced large animal medicine since. Born and raised on a dairy farm, he now owns and manages Vandeholm Jerseys, an organic Jersey herd near St. Marys, which gives him a working farmer’s view of the medicine he practices. His clinical interests include genetics, reproduction, calf health, nutrition, and farm economics.  Outside the clinic and the barn, he plays hockey, soccer, and volleyball (and is still working on his golf game)!