An increase in salivation may be dietary, empty stomach, stomach upset, oral
irritation (can be allergy or chemical
irritation), swallowing difficulties etc... I would keep an
eye on Brady for a few days and if the increased salivation
continues I would take him to his Veterinarian for an examination as certain salivary gland disorders may cause an increase in salivation; some
of which may be medically managed (see link below for an example).