Truffle culture (continued)
Even if the pig was the truffle hunter's companion for a long time, it has been completely supplanted by the dog and nowadays is consigned to folklore. Unlike dogs, that are content with the reward of a small piece of cheese, the truffle hog was very keen on the product and would compete for it with the human holding the leash! Besides, the pig's close relative, the wild boar, often damages truffle grounds.
There are two types of truffles: naturally growing truffles that usually grow at the foot of oak trees, and those from plantations with mycorrhized trees, generally oaks (pubescent oak or holly oak) or hazelnut shrubs.