The Bulletin / 9 



numerous that it reminds one of the speckling of u turkey's egg. Con- 

 gestion and lioniorrhagic spots are also detected when the kidney is cut 

 open. 



Bladder — The inner lining of the hladder may he found congested 

 with numerous hemorrhagic spots on the surface. 



IIeakt — T^umerous petechiae and hennnorrhagic spots may be found on 

 the heart. 



Lungs — In well defined cases of cholera small red or hemorrhagic spots 

 may be found on the lungs. Again large, dark, consolidated si)<)ts are 

 found, due to congestion and collapse of the lung tissue. In the chronic 

 form pus may be found in the lungs. Sometimes the lungs are adhered 

 to the chest walls and diaphragm. 



Symptoms I'sually Found in Well-Defined Cases of Hog Cholera 



Ante-Mortem — Lack of appetite, unthrifty, high temperature, emacia- 

 tion, arched back, wobbling gait, red or purple skin along the belly be- 

 tween front and hind legs and base of ears, and constipation followed by 

 ■diarrhea. 



Post-Mortem — ITemorrhagic spots on kidney, lung, intestinal lesions 

 and congestion of lymphatic glands. Congested spleen studded with 

 petechiffi spots. 



Infected Premises 



The length of time before it is safe to put non-immune hogs on infected 

 premises will depend largely upon the character of the grounds infected. 

 If the grounds are well drained and are not covered with too much litter, 

 80 that the rays of the sun will reach all parts of the ground, it would 

 probably be safe to add susceptible hogs to the premises in three months. 

 But, if the grounds are not well drained and have low, wet or marshy 

 places, it wonld not be safe to add susceptible hogs to the grounds under 

 twelve months, or even longer. When conditions Avill permit every effort 

 possible should be made to thoroughly disinfect the infected premises be- 

 fore hogs that are susceptible to cholera are added to the premises. 



SAMTATIOX 



Under the ordinary farm conditions it is practically impossible to 

 disinfect thorough enough to kill out all of the hog cholera infection, but 

 where possilde all litter should be raked up and burned. This can be 

 done in small lots and should be followed with a spray of a five per cent 

 solution of carbolic acid, lysol, creolin or any other reliable disinfectant, 

 and a liberal application of lime. The pens and houses can be disinfected 

 in a like manner; if they are inexpensive ones it would be better to tear 

 them down and burn them. All mnd holes and cesspools should be 

 drained and filled up. 



If these measures are followed one would most likely be safe in adding 

 susceptible hogs to the premises. If the hog lots or pastures can be used 



