DISEASES OF THE HOG. 201 



which it occupies, contrasted with the resonance 

 of the surrounding space, will be sufficient to diag- 

 nose it In this affection the pig becomes feverish 

 and restless, until at length a portion of the ure- 

 thra or bladder gives way and the urine escapes 

 into the peritoneum with fatal results. 



Treatment: It is not very easy to find the cause 

 in the pig. Our first efforts will be to try to re- 

 lieve the bladder of some of its contents by gentle 

 pressure and the application of hot water to the 

 back part of the abdomen and the perineum. If 

 this should fail, then an opening must be made 

 into the urethra by cutting through the perineum 

 and a human catheter passed and the water drawn 

 off. This will give the animal relief. Then find the 

 cause, if possible. If from calculi or coagula in 

 the urethra, remove them. If from inflammation 

 of the neck, give a dose of epsom salts and bathe 

 w ith warm water. When spasms of the neck of the 

 bladder are the cause of retention, give injection 

 of warm water with a little opium in it, one dram 

 of opium to the ounce of water; repeat this every 

 two hours; apply chloroform or ether to the nos- 

 trils until tlie animal is slightly under the influ- 

 ence of it. If the retention should arise from want 

 of powder in the muscular coat, give stimulants and 

 tonics, such as two drops of fluid extract of nux 

 vomica and thirty to sixty drops of tincture of iron 

 at a dose, in a little syrup, three times a day. 

 INCONTINENCE OF URINE. (ENURESIS.) 



In this derangement the animal has lost the 

 power of controlling^ the sphincter of the neck of 



