CONTAGIOUS ABORTION.
(Infectious Abortion)
Cause.—Due to germ (Bacollus Abortus) coming in direct contact with the genital organs of a bull or cow and can be indefinitely transmitted from one herd to another by infected bulls serving healthy cows, or infected cows when served transmit the infection to healthy bulls. Healthy cows become infected by their genital organs coming in contact with litter on floors when lying down or rubbing against fences, walls or posts previously soiled by aborting cows. Cattle licking one another is also a prolific cause.
Symptoms.—The signs of calving are not so well marked as in normal calving, especially where the aborting animal is a heifer and the gestation period has not exceeded three or four weeks. In cows, especially where the gestation period has advanced to five or seven months, the symptoms are easily detected as a rule by a swelling of the udder, or what is commonly termed “making bag,” the outer portions of the womb swollen and inflamed as in normal calving. As the period of abortion approaches, there will be a discharge of mucus and blood from the womb. Labor pains are not as severe as in normal calving, owing to the absence of hair on the foetus and being smaller; although the afterbirth (fœtal membranes), may be retained the same as in normal calving.
Preventive Treatment.—This perhaps is the cheapest and best method of treating Contagious Abortion. When purchasing bulls or cows, ascertain whether the farm you purchased from has Contagious Abortion. An investigation of this kind often saves labor, time and money.
Medical Treatment.—When once Contagious Abortion makes its appearance, separate infected from non-infected animals, remove all litter, manure, etc., from barns, corrals, and burn or bury deeply. The conveyances used should be tight so as to prevent scattering. Scrub and disinfect floors, fences, walls and barns and rubbing posts with a solution made from three pounds of Copper Sulphate to ten gallons of water, permitting it to thoroughly dissolve before using. Use an ordinary barrel and cover so as to prevent any cattle drinking same, as it is very poisonous. When a cow aborts, remove the calf and afterbirth in a tight receptacle that will prevent any portion from being scattered, and burn or bury deeply; disinfect the floor and walls of stall where the abortion took place as long as the cow is discharging any fluids from the womb. A gallon of distilled or boiled water containing about one per cent Carbolic Acid should be injected into the womb with an ordinary hose and funnel. This should be repeated once a day for a week. Use a solution of the same strength for washing the tail and parts around the outer part of the womb, or in fact any part that the discharge of an aborting cow may come in contact with.
Internally, give Methylen Blue in thirty grain doses, every other day for two weeks. This is an exceptionally disagreeable drug to administer as it stains everything it comes in contact with. Place it in a gelatin capsule or have your druggist prepare six or seven capsules containing thirty grains each. Then administer with capsule gun. Insist on pure Methylen Blue, accept no substitute. This treatment has proven very effective in many localities where strict aseptic precautions were carried out, as washing out the womb or any parts that the discharge of an aborting cow may come in contact with and proper cleanliness and disinfection of stables, etc. Cows should not be bred for several weeks following abortion or as long as there is a discharge present. Bulls should be treated in much the same way, as administering Methylen Blue in same size doses for the same length of time as that of the cow. But in addition to this, use a one per cent solution of Carbolic Acid for injecting into the bull’s sheath, holding the end of the sheath while the solution is being injected, until it is well distended; holding the opening of the sheath allowing the solution to remain as long as convenient. Also, wash belly, muzzle, etc., with a solution of the same strength.