SIXTH ANNUAL YEAR BOOK — PART VIII. G39 



and after each servica with the caibolic-acid solution. Exclude all out- 

 side cows from service by the regular herd sire and, in purchasing breed- 

 ing animals, subject them to quarantine and treatment before placing 

 them in the sound herd. 



As a certain number of the cows will harbor the germ in the womb 

 when treatment is started, it is not to be expected that abortions will 

 cease at once, but by keeping up the treatment the trouble may be got rid 

 of in the following year. As an aborting cow is usually of little use for 

 the dairy, it is best to separate and fatten her and apply treatment to those 

 that remain. In this, as in other delicate manipulations, the stock owner 

 will consult his own interest by employing an accomplished veterinarian 

 and avoiding such as have not had the privileges of a thorough profes- 

 sional education. In addition to the above, the removal of all manure 

 and contaminated litter and the sprinkling of the surface with the sul- 

 phate of copper solution is called for. Drains should no less be thorougn- 

 ly rinsed and disinfected. Milking stools and other implements may be 

 treated in the same way, or with carbolic acid or boiling water. Great 

 care should be taken to guard against bull or cows from an aborting herd 

 or district; streams even may be suspected if there is an aborting herd 

 near by and higher up on that stream. Cows sent to bull from an abort- 

 ing herd are to be positively denied, and workmen that have attended on 

 such a herd should be required to wash and disinfect their clothes and 

 persons. 



Note— It i3 imoo^'^ible to lay too mii^h stress on the importance of protecting a sonnd 

 herd against conra^iou-s abo'-tioa rat.her than of treating animals already diseased. Tdis 

 ooa^is■>s prinoipiUy in purchasing animals from clean herds only, in isolating all new 

 pnrchasei and in mt breading to th^m until they have b^en proven free from infectioD, 

 or in disinfectring th^ geaidals of all newly acquired animals for at le^st a week. 



Incases where its is desired to treat pregnant cowa to preveut them, from aborting, 

 hypodermic injections of 2 drams of a i per cent solution of carbolic acid everr two 

 waek* until eigtit injections have been g'ven, may be tried, but too much success should 

 not b'l esnected from th'a treatment. The most suitable place for the injection is on the 

 side of the necli. Ringe cattle may be more reaiilv treated by the use of medicated 

 sale plaisd in troughs accessible to the aoimaU. Thla salt is easilv prepared by pouring 

 4 o Tncs< of liquefied crude carbolic acid upon 12 parts of ordiaary barrel salt, after 

 which th'iy are thoroughly mixed. 



