324 DR. LEGEAR'S STOCK BOOK/ 



be small sores or abrasions on the lips, tongue, cheeks, throat, 

 or any abraded surface, or ulcers in the stomach or bowels 

 through which the bacilli gain entrance to the blood, and when 

 once in the blood they multiply very rapidly and cause death 

 quickly. 



Symptoms. The disease is generally produced in from one to 

 three days after the animal is infected, and death most always 

 follows in from one to three days a'fter the disease sets in. The 

 first symptom of the disease shown is loss of appetite and rumi- 

 nation, with dullness and debility and a high fever. The most 

 noticeable symptom is the appearance of a tumor or swelling 

 under the skin, which may appear before the animal is noticed 

 sick, or shortly after. This tumor may be located on the neck, 

 shoulder, breast, thigh, rump, flanks, etc., and when in connec- 

 tion with the limbs causes stiffness and lameness. When the 

 tumor is handled a peculiar crackling sound is heard under the 

 skin, due to a collection of gas formed by the bacilli as they mul- 

 tiply. The animal's breathing becomes difficult; there may be 

 attacks of colic, and the animal's weakness increases until death 

 ends the scene, which may all take place in a few hours or in 

 two or three days. 



Treatment. Up to the present time medicinal treatment for 

 Black Leg has been almost an utter failure. Nearly all animals 

 attacked die. As the disease runs such a rapid course, the ani- 

 mal is too near death before noticed sick for medicine to relieve. 

 Since medicinal treatment is of little or no avail, prevention is 

 the most important subject demanding consideration. When the 

 disease breaks out, the healthy ones should at once be removed 

 from the diseased. Those that die should be at once burned .r 

 buried deeply. All well animals under two years of age should 

 be vaccinated with Pasteups Black Leg Vaccine, which has 

 proved to be a sure preventative against tin di> ;)-. Ii j> well 



