ct|ie 1936 



to Have Hogs to 



he Average Value 



^^^ ^ Chicago in 1935 



25c You Can In- 

 Pig 



rm B 



L 



Against Cholera 



ureau Serum. 



Bureau serum in 1935 were in order 

 Knox, Fulton, Henry, Mercer, Hender- 

 son, Peoria, Warren, McLean, Sanga- 

 mon, and Bureau. All these counties 

 are heavy hog producers but they do 

 not rank in the order above. The cen- 

 sus reports that Fulton county led all 

 others in the number of hogs on farms 

 Jan. 1, 1935 at 111,200. Next came 

 Henry with 106,700 hogs and then in 

 order Sangamon, Mercer, Knox, Mor- 

 gan, McLean, Stephenson, McDonough, 

 Bureau. The 40 per cent reduction in 

 hog numbers from Jan. 1, 1934 to Jan. 

 1, 1935 was fairly uniform in most of 

 the counties. 



The lU-nois Farm Bureau Serum As- 

 sociation is watching with great inter- 

 est the development of crystal-violet 

 vaccine for the prevention of hog 

 cholera. This product is the discovery 

 of the late Dr. Dorset of the U. S. 

 Dept. of Agriculture who died last July 

 after nearly 30 years of successful ex- 

 perimentation. He discovered a num- 

 ber of important products (including 

 hog cholera serum) for animal disease 

 control. 



Indications are that the new vaccine 

 will be cheaper and safer than serum 

 and virus. One definite advantage of 



the new vaccine, says the Department, 

 is that it promises to immunize hogs 

 without the need for taking the virus 

 of hog cholera to the farm. The serum 

 alone treatment at present gives pro- 

 tection only for a short time. 



The new product consists of blood 

 derived from pigs infected with cholera 

 to which certain germicidal solutions 

 have been added and the entire mix- 

 ture then exposed to 37V2° centigrade 

 until the virus is no longer capable of 

 reproducing the disease in healthy pigs. 

 Crystal violet is a chemical dye used 

 to destroy the infective elements in 

 the virus and at the same time pre- 

 serve the protective elements. 



99% Protection ' 



Tests of several lots of the vaccine 

 on nearly 200 pigs have given about 99 

 per cent satisfactory protection against 

 cholera. In these tests resistance to 

 the disease was determined by the 

 ability of each pig to survive injection 

 of hog cholera virus three weeks after 

 vaccination with the new product. 

 Since the new product does not residt 

 in immunity in less than two weeks, its 

 effectiveness in conjunction with 

 serum, in herds exposed to hog cholera, 

 also awaits investigation. The new 

 product is still distinctly in the experi- 

 mental stage so that for the present, 

 at least, reliance will be placed on the 

 double treatment of serum and virus 

 for immunization. 



Dr. Warren Sees BeHer 



Outlook For Farming 



Farm prices are still so far below the 

 cost of living that the farmerV position 

 is still below normal. Dr. George F. 

 Warren, Cornell University economist, 

 told a "Farm and Home Week" audience 

 at Ithaca, N. Y., recently. 



"Since February 1933 farm prices in 

 New York have risen about to the level 

 they were before the war," he said. 

 "Thirteen out of 20 important products 

 have risen 69 per cent or more. From 

 now on there is little likelihood that the 

 greneral level of prices of raw materials 

 will decline, and almost a certainty that 

 a rise will occur in the next five to ten 

 years. 



"Regardless of what conditions are 

 now, there is a'.most no chance that they 

 will get worse, and a fair degree of cer- 

 tainty that they will improve. Good 

 farms again promise to be good prop- 

 erty to own." 



A. C. Johnson, formerly assistant farm 



adviser for the Marshall-Putnam Farm 

 Bureau, recent'.y moved to Kane county 

 where he succeeds Farm Adviser Harry 

 Kelley. 



II 



