DISEASES OF FARM ANIMALS 



141 



in which little can be accomplished when the gravel 

 or stone is located in front of the bladder. If 

 within the bladder, not obstructing its outlet, it is 

 not likely to make its presence known. Agents 

 should be given, however, to overcome the pain 

 and to relieve the frequently existing spasm at 

 point of obstruction, as far as possible, which may 



RETENTION OF THE URINE 



By means of a catheter the greater portion of the urine can be 

 drawn off. The operation is shown in the picture. 



allow passage of stone. Give 4 tablespoonfuls of 

 laudanum or chloral to a dose and repeat in two or 

 three hours if any pain or trouble is still indicated. 

 In inducing the animal to drink liberal quantities of 

 water the condition may be somewhat relieved by 

 making the urine more watery in character and 

 possibly dissolving a portion, allowing the 

 remainder to pass along its course. When the 



