the structure of the molars and shape and size of the mouth is such 
that the technic used in giving a capsule to a dog by hand is un¬ 
satisfactory and will usually result in injury to the hand. 
SWINE 
The administration of anthelmintics to swine is a difficult matter. 
These animals are hard to restrain, annoyingly noisy, and have a 
powerful bite. 
HOLD MOUTH OPEN BY LOOPING EACH JAW 
In drenching them it is a common pratice to hold the mouth open 
by means of two loops, one about the lower jaw and one about the 
upper jaw. The loops are made of various things, but the use of wire 
seems inadvisable and cruel as it commonly results in injury to the 
gums or teeth. Even small rope has the same objection and it seems 
advisable to use rather large rope or loops of rubber hose. A specu¬ 
lum of some type is often used. Metal tubes used in drenching swine 
must be strong, as swine will crush small metal tubes between the 
teeth. The apparatus used by Young is shown here in Figure 2 and 
his method of using it in Figure 3. Johl uses a cylindrical speculum 
in the form of a curved metal tube in passing the stomach tube on 
swine. According to Dr. E. R. Steel it is possible to administer the 
mixture of chenopodium and castor oil by stomach tube to 80 pigs an 
hour. 
OTHER METHODS 
Numerous drenching methods have been advocated and used, in¬ 
cluding the use of a rubber hose which the animal is allowed to chew 
as the drench is poured down it, or the use of an old boot from which 
the toe has been cut, the toe part being put in the mouth for the ani¬ 
mal to chew while the drenching is poured in the upper portion of the 
boot. 
BALLING HOGS 
Capsules should be given to swine by means of a balling gun, as 
the bite of these animals is too severe to permit of risking the hand. 
In using the balling gun it is customary to hold the mouth open by 
means of loops or a speculum. The danger incident to administering 
capsules to swine has been pointed out frequently of late years and 
most veterinarians are familiar with the fact that a capsule must not 
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