PINE TAR • E-FREE TRANSLATION.COM • Definition of Pine tar

... sufficient to drive the animal at a walk for a quarter or half an hour; or cold water by the bucketful may be thrown against the cow's sides. In some cases the following simple treatment is successful: A rope or a twisted straw band is coated with pine tar, wagon grease, or other unsavory substance and is placed in the cow's mouth as a bit, being secured by tying behind the horns. The efforts of the animal to dislodge this object result in movements of the tongue, jaws, and throat that stimulate the secretion of saliva and swallowing, ...

— Special Report on Diseases of Cattle • U.S. Department of Agriculture