The female pig 's natural truffle-seeking , as well as her usual intent to eat the truffle , is due to a compound within the truffle similar to androstenol , the sex pheromone of boar saliva , to which the sow is keenly attracted .
The female pig 's natural truffle-seeking , as well as her intent to eat the truffle , is due to a compound in the truffle . This compound is similar to androstenol , the sex pheromone of boar saliva , to which the sow is keenly attracted .