1918.] LAW RELATING To I XOCL'LAT K »N' FOR FlOr, CHOLERA. 39 



At first \\c were liaiulicai)i)ccl by lack of upcratur:^ but now 

 wc lia\c twenty skilled in the work So that service can be 

 rendered within twenty-f<iur hours after api)licati< >n thruuj^h- 

 uut the state. The only cost to the ai)i)licant is fur the serum 

 as the cost of treatment is borne by the department. 



The cost of the serum is governed on the basis of the 

 weight and temperattire of the pig and whether there is in- 

 fection in the herd or infection in the neighlj(jrhood. The 

 average cost is about sixty-three and one-half cents \)cr hog. 

 A pig with a high temperature reqtiires a certain larger per 

 cent, of serum than one with a normal temperature, say ten, 

 fifteen or twenty cubic centimeters of serum as indicated. 



The number of hogs inoculated from the middle of July up 

 to the hrst day of November was six thousand, some were 

 given the single treatment, and some the double treatment. 

 A large number were killed and realized on. The death rate 

 was four hundred seventy-three out of six thousand. Forty 

 per cent, exhibited symptoms of hog cholera. 



At one time the hog industry in this state was almost en- 

 tirely wiped out. They could not raise hogs owing to the 

 hog cholera. 



With two thousand two hundred hogs infected with hog 

 cholera at time of injection we figure about eighty per cent. 

 Avill be lost, thus showing a saving of seven hundred sixty 

 hogs by the treatment. Figuring these at an average weight 

 of one hundred fifty pounds each, they would have netted the 

 owners in the neighborhood of fifty thousand dollars at the 

 current price of pork. 



The price of inoculation to the department and the state 

 is decreasing gradually. V\'e propose to give instruction on 

 the treating of hogs to those who are not familiar with the 

 double treatment. Any one can inject serum. If a person 

 is clean in his work an abscess will not form, and that is 

 w hat we are afraid of and want to. avoid. The use of the 

 virus is where the danger lies. \'irus should not be used 

 until you are familiar with the correct methods of its use. 

 One of our operators has inoculated over one thousand, seven 

 hundred hogs without an abscess or trouble of any kind while 

 another has not had over ten. This shows what can be 



