CHAPTER IX 



Diseases of the skin are probably not so common in swine as in 

 ether domestic animals. Bectmsc of the location of thp skin it is 

 subject to a variety of injuries of various kinds, but fortunately 

 .';wine are. not verj- susceptible to wound infections and therefor,; 

 cutaneous lesions heal promptly and with little inconvenience to the 

 afflicted animal. 



ERYTHEMA 



Erthema is a name applied to the condition resulting from con- 

 gestion of the skin. It is quite common, particularly in swine having 

 little or no pigment in the skin. It is also a common condition in 

 some infectious diseases, such as swine plague and hog cholera. 



Etiology. — Simple erythema in swine is most frequently the result 

 of sunshine but may, be due to contact with some irritant. In some 

 instances erythema may be caused by ingested chemicals that have a 

 special selective action on the skin or are eliminated by the skin. 

 -Lesions. — Engorgement of the superficial vessels and redness are 

 the only demonstrable lesions. 



Symptoms. — Redness, and perhaps pruritus, are the principal 

 symptoms. 



Treatment. — Remove the cause, and the disturbance will cease to 



exist. 



Suniurn 



Swine having little pigment in the skin are injured by sunlight. 

 In some sections it is not profitable to raise wliite pigs because of 

 the irritation of the skin by the sun and the production of dermatitis. 



