118 ANNUAL REPORT OF THE Off. Doc. 



guard, tlie owner's affidavit" is not accepted in a case where there is 

 any question of the freedom of the horse from hereditary or trans- 

 missible unsoundness or disease. 



An effort lias been made to organize stallion jjarade associations 

 in each county in the State. Last year these efforts resulted in twoi 

 parades being held, one in Meadville which was promoted by Dr. C. 

 Courtney McLean, and one at Knoxville, where Dr. E. L. Simpson 

 was organizer. The prospects for more of these spring stallions 

 shows another season is good. 



It has been the object of those charged with the administration 

 of this law to use every opportunity, such as breeder's association 

 meetings, farmers' institutes, county fairs, and the press to advise 

 and iuform the people concerning the afforts of the State Livestock 

 Sanitary Board to encourage horse breeding. 



Incidentally, it may be stated that there is a very general demand 

 from the stallion owners for a lien law which will afford them 

 protection, similar to laws now in force in many other states. 



LA150RAT0RY. The laboratory Avork has been carried out, as here- 

 tofore, principally by Dr. E. S. Deubler and Dr. John Reichel. 

 Dr. Deubler has been in charge of the outside work in connection 

 with vaccination against tuberculosis, and of the research worlc at 

 the farm, and Dr. Reichel has given attention to the work within the 

 laboratory. 



Dr. Deubler has prepared the following brief statement: 



Vaccination against tuberculosis. The work in connection 

 with the vaccination of cattle against tuberculosis has been 

 continued along the lines previously outlined. No very ex- 

 tended report can be made on this work as yet, because the vac- 

 cinated animals are being kept for a considerable period under 

 ordinary farm conditions in order to give the vaccination a thorough 

 and practical test. The results obtained so far have been very 

 eucauraging. The vaccinated animals exposed to tuberculous 

 animals and infected stables have continued in apparent health and 

 in a thrifty condition, while some of the control animals, exposed 

 to the same conditions and not vaccinated, have died of tuberculosis. 



With the view of simplifying the vaccination process as much as 

 possible, several new or moditied methods have been tried, and the 

 results obtained indicate that something may be accomplished in 

 this line. 



A very important use for vaccination against tuberculosis is in 

 connection with the Bang system for eradicating tuberculosis from 

 infected herds. There are at the farm a number of tuberculous 

 cows, some of them excellent pure bred dairy animals, which have 

 been removed from private herds after reacting to the tuberculin 

 test, and an experiment along this line is under w\ay. Other similar 

 lines of w^ork are being carried out, but there is nothing definite as 

 yet to report. 



Epizootic Lymphangitis. Seven horses affected with this 

 disease in a characteristic form were received at the farm in 

 September. All had been previously treated, but with unsatis- 

 factory results. The Saccharomyces farciminosiis was demon- 

 strated in pus taken from discharging foci on each of these animals. 

 A study of the treatment of this disease was undertaken and, by 

 Dr. Pearson's direction, iodide of potassium was administered in 

 physiological doses, and all local treatment was discontinued. All 



