190 DISEASES OF THE HOG. 
(lisease, or otherwise, the kidneys did not secrete 
this material from the blood the animal would 
soon suffer from a form of blood poisoning called 
uremic. The quantity of urine secreted varies 
very much in the same animal. The weather has 
a great deal to do with the amount secreted. Ani- 
mals pass more urine in winter than in summer, 
as heat increases the quantity removed by the 
skin and lessens the amount passed by the kidneys. 
Thick, creamy urine is the result of a sluggish 
condition of the kidneys, while coffee colored and 
scanty urine is the result of fever and a partial 
congestive state of the secretive organs in differ- 
ent parts of the bodys An increase in the quantity 
and a clear or light yellow color denote either 
over-stimulation or it is seen in cold weather, and 
on account of it not being irritant the time be- 
tween voiding it has been prolonged. On the 
- other-hand, if it is passed in quantities and often 
and the animal is very thirsty, it is a symptom of 
a disease which will be described hereafter. As 
long as an animal is in good condition and spirits 
and has a good appetite, no notice need be taken of 
the urine. Diseases of the urinary organs are very 
rare in animals, but as they do happen sometimes 
I shall describe a few of them. 
Nephritis (Inflammation of the Kidneys). 
Causes: Injuries, cold rains, cold water dropping 
on the loins for a length of time, feeding on brew- 
ers’ grains and distillery slops, kidney worms, etc. 
Symptoms: The animal is stiff in its hind parts, 
pain in the loins if the animal is made to move, 
