THE COW IN HEALTH AND DISEASE 135 



a drench. The following is a good way to have 

 it prepared: two ounces potassium iodid dis- 

 solved in eight ounces of water and then give 

 one tablespoonful in a little water as a drench 

 three times daily. The external swelling should 

 be painted twice daily with tincture of iodine. 



In some cases it requires five or six weeks 

 to effect a cure. In those cases affecting the 

 tongue ■ there is apt to be a recurrence unless 

 the treatment is persisted in for this length of 

 time. In some cows we notice, what is termed 

 lodism and that is a condition resulting from 

 an overdose of the potassium iodid. The ani- 

 mal's eyes water, there is a catarrh of the nose 

 and a loss of appetite; when such symptoms oc- 

 cur the treatment should be discontinued for 

 three or four days until these symptoms have 

 subsided and then the treatment should be re- 

 peated as before. It is best to give sufficiently 

 large doses of potassium iodid to produce this 

 condition several times in those cases affecting 

 the tongue. Cases that will not respond to this 

 treatment in five or six weeks should be re- 

 garded as hopeless as far as successful treat- 

 ment is concerned. 



It should be borne in mind that when potas- 

 sium iodid is given to cows that are far ad- 

 vanced in pregnancy that it may occasionally 

 produce an abortion and that it will very mate- 

 rially affect the milk flow and sometimes will 

 almost check it altogether; the milk should 

 not be used while the cow is under treatment 



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