Show Delay in in Immunizing ing Hogs May Be Costly It Should Be Done Shortly After Weaning Pigs Prepared by the United States Department ot of Agriculture W U Service or The objection of at many farmers to having their swine herds Immunized against hog cholera on account of cost comes principally from those who wait watt until the hogs are full grown brown before using the treatment sa says s 's Dr T T. P P. P White of or the division of hog hog cholera cholera control bureau of at animal industry United d States Department of ture IIi In sections where hog hoe cholera Is more or less prevalent year ear after year ear Doctor White adds the serum scrum treatment is the only safe method of protection In those localities the Im Im- Immunizing Immunizing of at the herd should be a regular regular regular regu regu- lar practice Just as os castrating dockIng dock dock- lag Ing dehorning and other common livestock live lire stock operations As In the case of those operations that are ale practiced early earl in the life Ilfe of the animal it is preferable to Immunize early In experimental tests and under certain certain certaro tain taro field conditions pigs a n few days das old have been Immunized against hog cholera In general practice however howe opinion seems to favor immunization not long before or soon after weaning Even Kven at that period when the pigs may ma weigh from 30 to 40 pounds the amounts of at serum and ond virus necessary to confer immunity are much less than for grown hogs The cost Is correspondingly correspondingly correspondingly corre corre- lower a pig of at that age requiring re- re requiring re quiring in some cases only a third of the expense necessary to treat trea a full- full grown hog Also Aiso the veterinarian finds It easier to handle young oong pigs If a u young oung pig dies the loss Is small compared with that of at a larger hog |