AlJUICl'LTrUAL AIMMtdl'tllATION IWM-, l!C'4. 1 I .'i 



in his (ii.stric't tlirou^rli ((Hituct with fainiHrs. veterinary practition- 

 ers, coiiiity ii^rciits. livc-sdK'k markets, repcirts of Itiiieuii inspectors 

 locatetl at parking; houses, etc. 



ItU'AKTMKNT AM) HTATK COOI'K.KATIOV. 



The handling of outhreaks of Ijoj; ehoh'ni is hirp-Iy left to the 

 (h'paitnient and State field \ ctei-iiiariaiis. On reci'ipt of a report 

 of an outhreak in his disliict the tiehl \t'teriiiarian pro<-ee(|.s to the 

 farm on wluch the disease has appeared; he diai^noses the troiihU», 

 •rives adviee in re<:ard to treatment and the disinfection of tlie |)rem- 

 ises, traces the source of the outl»reak, notifies other ho^' owners in 

 the nei«j:hhorli(M)d. and advises them in re^rard to precautions and 

 the advisahility of havin«r their herds inununi/.ed. and often assists 

 local veterinarians in immunizin«r the ho«rs. In communities where 

 there are no re<.Mdar veterinary practitioners our fiehl merj a(hnin- 

 ister the treatment themselves. .NIany lalls come from veterinarians 

 who desire assistance in dia'inosis or advice in re^oird to techni(pie, 

 and the farmer has come to regard tlie de])artment veterinarian 

 as a reliahle .source of information and advic«' when lie is in trouhle. 

 The money ai)i)ropi iated for next year will be used to cairy on this 

 work alon;; the same lines as at present. 



Mr. BrciiAXAx. Have you jj^ot any vaccine or any character of 

 medicine to be administered to ho<rs that will make them immune? 



PREVENTIVE SERUM. 



Doctor MoHLKR. Yes, sir. There is a preventive serum that was 

 discovered in the bureau 14 years a<ro. It is somethin<r like the 

 seium that is u.sed for diphtheria in children. 



Mr. IU( iiANAX. Is it certain? 



Doctor MoHiJCR. Yes, sir, 



Mr. lircHAXAX. Established beyond question? 



Doctor MoHi-KR. Absolutelv. 



Mr. BicHAXAX. And any person can use it on a drove of hops 

 an<l make them imnuine? 



Doctor M(»ni.ER. Yes, sir. 



Mr. Hr( HAXAX. And they can not fret cholera? 



D(»ctor MoiiLKR. They can not <ret the cholera if the serum-virus 

 treatment has lieen properly applied. 



Mr. BrcHAXAx. Does it cost much? 



Doctoj" MdiiLFR. It costs from 1| cents to li cents a cubic centi- 

 meter. There are 40 cubic centimeters to a dose for the avera«re- 

 si/.e pi«r, nuikinjr the cost about 50 to 80 cents for the serum. In 

 aildition farmers usuall}' emj)lov some one to make the injection. 



Ml'. Hi < 11 vxAX. You have to have more than one injection? 



Doctor MoiiLKR. One injection of serum and virus is suiricient for 

 the life of the ho<r. but, of course, when new pi<rs are born they have 

 to be injected. 



Mr. Anukksox. AVhnt is the total cost — $2 a head? 



D(Mtor Abuii.KR. It ou<j:ht not to averajre nearly that much. Mr. 

 Chairnuin. The older the pijr is the more expensive it is. When 

 they are little fellows, sucklinj^s of 15 or '20 ])oun(ls, they can be 

 vaccinated for 50 cents apiece. That is what we have been trying 

 to get the farmer interested in; instead of waiting until the pigs 



