USE OF SERUM IN HOG-CHOLERA 



377 



of pus and germs all over the feed lot is avoided, and, in the case 

 of suckling sows, a large number of mammary abscesses will be 

 averted. 



Other Points for Injection of Serum. — The deep intramuscular 

 injection of serum on the inner side of the thigh has many advan- 

 tages, but it also has some disadvantages. One of the most im- 

 portant of these, from the standpoint of the butcher, is the forma- 

 tion of a deep abscess in the ham. The hams are the most valuable 

 part of the dressed pork carcass, and if these are ruined by forma- 

 tion of abscesses it will mean a great loss to the packing companies, 



Fig. 74. — Showing injection of serum behind the ear in large hog. Note 

 manner of holding the hog. (Photo loaned by H. K. Mulford Co.) 



and indirectly also to the farmer, for the packer will necessarily have 

 this possible loss in mind when buying the live animals. 



Behind Foreleg. — For the past two years the packers have been 

 howUng long and loud against this form of injection of serum, and 

 advocates of serum treatment have earnestly tried to find other 

 means of introducing serum into the body without producing these 

 bad after-results. For this purpose other locations have been 

 tried, and the result has been that we have two other locations 

 where serum can be given with almost equally as good results as 

 when given in the region of the thighs. One of these is by injec- 



