DISEASES AND TREATMENT OF CATTLE 387 



make her water within twelve hours after injecting the bag, 

 take it away by means of a catheter — an instrument for this 

 purpose. 



This is done by passing the point of the catheter, guided 

 by the finger, along the bottom part of the vulva about four 

 inches in, where there is a small opening. Into this pass the 

 catheter gently downward and forward until the water comes 

 through it. Guarding the opening mentioned is a little valve, 

 and sometimes by slipping the finger in and raising the valve 

 the water will come without using the catheter. Do this 

 twice a day if necessary. 



Four hours after injecting the bag if she is not showing 

 signs of recovery, milk her out and repeat the same injection 

 into the bag. Repeat this every four hours until the milk 

 returns and she shows signs of recovery in other ways. 



During treatment offer her frequently small drinks of 

 cold water and gruels. Milk often until she is well. 



When recovering give a small quantity of such foods as 

 she seems to relish best and leave the calf with her for a 

 week or so. If the cow is not going to recover the paralysis 

 becomes more marked. She becomes dull and quiet, which 

 is followed by a delirious state before death. 



Another treatment which we recommend highly is as 

 follows : Inject air into the bag instead of using iodide of 

 potassium and water. A special instrument is made for this 

 purpose. All that is necessary is to insert it into the teat 

 and pump air into the udder (bag). The air becomes ster- 

 ilized while passing through the instrument. Pump the bag 

 as full as possible without causing it injury. It may be 

 necessary to tie the end of the teat with a soft cord to pre- 

 vent the air from escaping when the instrument is, removed. 

 In four hours milk the air out and repeat the operation. Do 

 this every four hours until better. 



After using sterilized air follow the same course of after 

 treatment as when using iodide of potassium. 



For milk fever instruments refer to the appended adver- 

 tisement. They should be kept on hand by every stockman, 

 especially such as keep a number of milking cows. The small 

 cost of these as well as many others that may be used suc- 

 cessfully with but little experience is a mere trifle compared 

 to that of a valuable animal the life of which may be saved 

 by their timely use. 



