This disease consists in an excessive secretion of saliva, and may result from various causes - some acting directly on the salivary organs themselves, others exciting their undue action by irritating remote parts. Injuries and eruptions in the mouth, from whatever cause, will induce it. A knowledge of this fact should lead to an inspection of the mouth on all occasions where saliva is unduly secreted. Nor should it be overlooked that sharp and dirty "bits" may excite the necessary irritation, as may also some chemicals, and acrid plants. In man mercury is a common cause, and the same results follow its repeated administration in the horse. It is frequently present in the disorders above referred to, and occasionally arises from indigestion and gastric irritation. On rare occasions it is seen as the result of neuralgia and other forms of nervous disturbance.
Foaming at the mouth while feeding very commonly results from salivation, and in the absence of food, the animal, if watched, will be seen to be repeatedly swallowing, while at the same time saliva drivels from the mouth.
Where the disorder is due to some mechanical or chemical irritant the cause should be removed. Where the edges of the teeth are sharp, the tooth - rasp must be freely applied to them.
CLEVELAND BAY, SPECIALITY 1562.
By Merryheart 1299 out of Beatrice 932. The Property of Mr. John Lett Rillington, York.