124 DISEASES OF SWINE 



occurs without our noticing previous symptoms of 

 disease. 



The usual termination is death, especially in 

 pigs. It may, however, assume the chronic form. 



In the subacute form, the symptoms may be so 

 mild as to escape notice. A mild train of symp- 

 toms, similar to those described in connection with 

 the acute form, usually occur. These are a fever- 

 ish condition, depression, loss of appetite, consti- 

 pation and diarrhoea. Recovery usually occups 

 within a few days. It may take on a chronic 

 form. 



When the disease persists for some time (from 

 three weeks to three months) it is spoken of as 

 chronic. In such cases the appetite is irregular 

 and the animal becomes weak and unthrifty. The 

 stomach, intestines and other internal organs are 

 diseased and the symptoms manifested will vary, 

 but are usually the same as in any general diseased' 

 conditions of the body. Young hogs become badly 

 stunted. 



The inflamed, hemorrhagic blotches on the skin 

 become dry, hard and cracked, and soon separate 

 from the healthy tissue and slough off. Large 

 sores may form on the back and other parts of 

 the body. These generally heal as soon as the 

 other symptoms are relieved. The unthrifty ap- 

 pearance of the animal is greatly increased by the 

 thickened, wrinkled and dirty skin, and the thin, ■ 

 dry coat. The loss of the tail and portions of the 

 ears add greatly to the changed appearance. Pigs 



