264 Veterinary Elements. 



of various states, slaughter is called for, and is the best 

 means so far of controlling the disease. 



Black-leg or quarter ill is a rather common disease af- 

 fecting young cattle, being of undoubted germ origin, but 

 fortunately, owing to the scientists, can be controlled in 

 a herd. This disease appears somewhat suddenly, its 

 presence being made known by death of the young cattle 

 between six months and two years of age, especially dur- 

 ing the months of June, July and August. Crackling 

 swellings on the skin of the body, thighs, neck, shoul- 

 ders, etc., and limbs above the knees and hocks, which 

 swellings are at first small and painful, later becoming 

 cold and insensible, together with fever, loss of appetite, 

 and stoppage of rumination are all signs of this disease. 

 The swellings give out a crackling sound when the hand 

 is passed over them, if an incision is made into them a 

 dark red, frothy, nasty smelling fluid flows from the 

 wound. The germ obtains entrance through wounds in 

 the skin, taking from one to five days to develop. The 

 germ retains its vitality and contagious character for 

 months, fire being its surest destroyer. The most satis- 

 factory treatment is that of a preventive nature, ob- 

 tained by the use of Blackleg vaccine or blacklegine, 

 which can be got from any druggist. All dead bodies of 

 cattle affected with this disease should be burned. 



Hog cholera and swine plague may be considered, for 

 all practical purposes, as one disease, differing only in 

 locality, the fiist named attacking the intestines of hogs; 

 the second the lungs of those animals. The disease is 

 very contagious and fatal to hogs. The onset of the 

 disease may last from a few hours to several weeks. 



