DISEASES OF SHEEP 521 



The German treatment, consists in the application of 1 part 

 of creosote and 50 parts of cod-liver, linseed, or castor oil externally, 

 and the administration of 1 tablespoonful of this mixture internally 

 to each lamb twice daily. 



As an aid to treatment, as well as a preventive measure, it would 

 be advisable to feed to the sheep salt which contains either sulphur 

 in the proportion of 1 part to 12, or crude carbolic acid 1 part to 100 

 that is, about 4 ounces of crude carbolic acid poured upon 12 quarts 

 of ordinary barrel salt and thoroughly mixed. 



After the affected sheep have received local treatment and recov- 

 ered they should be dipped in one of the recognized sheep dips prior 

 to being turned upon uninfected pastures or premises. Recent de- 

 velopments strongly indicate that much territory is infected, and it 

 is difficult to assert that any given range is entirely clean upon which 

 to run the sheep after dipping. While the dips may destroy unpro- 

 tected bacilli on the body of the sheep, they have less effect upon 

 those germs which are protected by the grease, dirt, and yolk of the 

 wool. Again, it is often difficult to find all infected animals within 

 the band, and the disease appearing in them following dipping re- 

 flects unfairly upon the effects of the dip. Certain sheep-dip prepara- 

 tions do not properly emulsify in alkali water, which is the only kind 

 available in many sections, and the results from such dips are not 

 as efficient as they should be. However, one dipping of these recov- 

 ered cases must be considered from our present view point as a neces- 

 sary precautionary measure. 



The place to suppress this disease is on the range, and if much 

 inconvenience and financial loss is to be avoided in making shipments 

 to noninfected States the individual flock master must battle with it 

 at home, holding back all diseased or recently exposed sheep and 

 shipping only those which remain healthy after they have been 

 removed from infection for at least two weeks. 



RULE 8, REVISION 2. TO PREVENT THE SPREAD OF LIP-AND-LEG UL- 



CERATiON (NECROBACILLOSIS) IN SHEEP. 

 (Effective on and after August 1, 1910). 



During the existence of quarantine the interstate transportation, 

 movement, trailing, or driving of sheep, except as hereinafter pro- 

 vided, from the area quarantined is prohibited. Owing to the dif- 

 ferences in the manifestations of this disease, the classification of af- 

 fected and exposed sheep will be designated as follows : 



1. Exposed Sheep. (a) Sheep which are affected with the mild 

 or inactive form of hp-and-leg ulceration, where only one portion 

 of the body is involved without evidence of suppuration, shall be 

 classed as exposed sheep after they have been hand treated under 

 the supervision or direction of an employe of the Bureau of Ani- 

 mal Industry with an emollient dressing containing 5 parts of one 

 of the permitted cresol or coal-tar sheep dips, 10 parts flowers of 

 sulphur, and 100 parts of mutton tallow, vaseline, or lard, and may 

 be shipped interstate when accompanied by a certificate of inspec- 

 tion and treatment issued by an inspector of the Bureau of Animal 



