Giving an animal medication can be difficult. The animals conceptually don't understand that the medications will help them. Instead they see a pill as something to avoid eating. Industry and folk lore are filled with advice on how to administer a medicine to an animal. Family cats and dogs although generally eager to please may become very willful once they determine that they do not wish to swallow a medicine and squirm and refuse entry to their mouths. Farm animals, including bred horses and livestock may also resist ingestion of a medicine, even if they otherwise cooperate with their human caretakers. Wild animals have no particular desire to cooperate with human beings and may therefore be even more difficult. Classically pills have been covered with various foods to mask or trick the animal to ingesting it.
Other prior art includes such ineffectual methods such as placing a cat on the owners chest and removing the owners hands forcing the cat to hold on with its claws while the owner forces the medicine into the cats mouth; or filling a syringe or dropper with a fluid and squirting it into the animals mouth, only to have the animal spit it out. Another method is to hold the animal's muzzle, force the mouth open, place the medicine at the back of the throat and then hold the muzzle closed. This method is very difficult with large animals and often ends with the animal becoming stressed and spitting the medicine out.
What is needed therefore is a way to easily administer an active agent to animals in a manner that does not agitate the animal or induce pain to the animal and which also increases compliance of the animal.