This disease is peculiar to young mules. Its symptoms develop with soreness and swelling of the glands of the throat, a cough, difficulty of swallowing, discharging at the nostrils, and general prostration. If not properly treated it is surely fatal.
TREATMENT:--Give light bran mashes, plenty of common salt, and keep the animal in a warm and dry stable. You need not clothe, for the mule, unlike the horse, is not used to clothing. If the swelling under the throat shows a disposition to ulcerate, which it generally does, do nothing to prevent it. Encourage the ulcer, and let it come to a head gradually, for this is the easiest and most natural way that the trouble, which at first seems to pervade the whole system, can be got rid of. When the ulcer appears soft enough to lance, do so, and be careful to avoid the glands and veins. Lance through the skin in the soft spot, which appears almost ready to break. If the throat is at any time so swollen as to render swallowing difficult, give water frequently, about milk warm, with nourishing feed of oats, corn, or rye meal--the last is the best. If this treatment, which is very simple, be carefully carried out, few animals will fail to recover.
CATARRH OR COLDS.
This disease seldom attacks the mule. We have had many thousands of them in camp, and out of the whole number, I do not recollect of a case where it either destroyed or disabled a single animal. In fact, it is a question with me whether mules will take cold when kept as the Government keeps them--camped out, or standing in sheds where the temperature is the same as outdoors.
GLANDERS.
This is one of the most destructive of diseases with which the horse family is afflicted, and one that has set the best veterinary skill of the world at defiance. A remedy for it has yet to be discovered. I have deemed it proper here, however, to carefully describe its symptoms, and to recommend that all animals showing symptoms of it be kept by themselves until their case be definitely ascertained. When you have ascertained to a certainty that they are afflicted with the disease, destroy them as quick as possible. See, too, that the place where they have been kept is thoroughly cleansed and sprinkled with lime, for the disease is contagious and the slightest particle of virus will spread it anew.
Farcy is but one stage of this terrible disease, but is not necessarily fatal while in this stage. It should, however, be treated with great care and caution. Farcy can also be conveyed to others by inoculation. Any one who has had the field for observation the author has for the last four years, would become convinced that the recommendations I am about to make describe the only course to be taken with this contagious disease. The number of its victims under my observation were counted by thousands. All that can be done is to prevent, if possible, the disease taking place, and to destroy when ascertained to a certainty that the animal has contracted it. I would say here, however, that this subject will soon be thoroughly handled in a work soon to be published by Doctor Braley, head veterinary surgeon of the army. He will undoubtedly throw some light on the subject that has not yet appeared in print.
SYMPTOMS.
First:--When it appears in a natural form, without the agency of contagion or inoculation, dryness of the skin, entire omission of insensible perspiration, starring of the coat. Sometimes slight discoloring can be observed about the forehead and lower part of the ears. Drowsiness, want of lustre in the eye, slight swelling on the inside of the hind legs, extending up to the bu-boa. This condition of things may continue for several days, and will be followed by enlargement between the legs. The inflammation incident to this may entirely subside, or it may continue to enlarge, and break out in ulcers on the lactiles of the lymphatic, which accompanies the large veins. In the last case it has appeared in the form of Farcy. This being the case, the countenance assumes a more cheerful look, and the animal otherwise shows signs of relief from the discharges of poisonous matter. If it remain in this state, death is not generally the result. If the system be toned up it will sometimes heal, and the animal will seem to be in a recovering state of health. Yet, from watching the symptoms and general health of the animal afterwards, you will be convinced that the disease is only checked, not eradicated. Acting in the system, it only waits a favorable opportunity to act as a secondary agent in colds, general debility, or exposure, when it will make its appearance and produce death.
But in the first case, as shown by the swelling in the hind legs, if the swelling disappear, and general debility of the system continues; if the eyes grow more drowsy, and discharge from the lower corners; and if this is followed by discharge from the nostrils, slight swelling and hardening of the sub-maxillary glands, which are between the under jaws, then it is clearly developed glanders. All the glands in the body have now become involved or poisoned, and death must follow in the course of ten or fifteen days, as the constitution of the animal may not be in a condition to combat the disease.