Dog saliva changes according to its diet

The body possesses the power to adapt its salivary secretions according to the nature of the ingested food. Fed with meat, the dog produces mainly through its submaxillary gland a thick and viscous saliva that lubricates the food bolus. Conversely, when it receives meat powder, its parotid gland releases a secretion as fluid as water to carry the dry powder away from the mouth.