674 DISEASES OF SWINE 



the symptoms are those of diarrhea, loss of appetite, and coUcky 

 pain, considerable good may be accomplished by the administra- 

 tion of calomel and oil, followed by such intestinal antiseptics as 

 salol or the sulphocarbolates. By this means the parasites are 

 swept out of the bowel before they have a chance to produce their 

 young, and the involvement of the muscles is avoided. 



Prevention of the disease in man consists almost entirely in 

 proper curing and cooking of pork. There is no danger from 

 pork that is properly cured and well cooked, as is usually done in 

 the American home. Thorough cooking is the only safeguard in the 

 prevention of trichinosis in man, and every farmer should appreciate 

 the importance of this fact, as pork forms a large part of the meat 

 supply of the farm homes. 



T^NIA SOLIUM 



This is a parasite which is of great importance in the hog from 

 the standpoint of the possible effects upon man. The parasite does 

 not in itself produce any severe symptoms in the hog, but when the 

 meat of an animal infested with the cysts of the taenia is eaten by 

 a human being the result is the development of a tapeworm in the 

 body of this individual, with resultant symptoms of tapeworm in- 

 festation. 



In the meat industry this parasite is known as the pork measle, 

 and pork so affected is known as "measly pork." In the hog the 

 parasite does not exist in the adult or tapeworm form, but is found 

 only in the larval or cystic form. The parasite develops into its 

 mature form only when taken into the body of some other animal, 

 as the dog or man, and then becomes transformed into the long, 

 flat, segmented parasite known as the tapeworm. 



In its adult form as seen in man the parasite often reaches an 

 extreme length, and some specimens have measured as high as 40 

 feet in length. The head is very small and is provided with four 

 suckers, and armed with a double row of booklets or arms, by 

 means of which it gains a firm attachment to the lining of the 

 bowels. The body of the parasite is flat and ribbon-like in appear- 

 ance, and composed of a large number of small pieces or segments, 

 which are attached more or less firmly to each other. 



At the head end of the worm these segments are very small, 



