54 DISEASES OF THE HOG. 



have the effect of causing more contraction of the 

 muscular coat. Young pigs are very frequently 

 attacked by diarrhea from some substance the 

 mother has eaten. It is also the result of denti- 

 tion. Poverty of the milk given by the sow, im- 

 proper food, irregular feeding, cold and damp 

 sties, sudden changes of temperature, green food 

 given to the sow with litter when they have 

 been too long deprived of it, not infrequently cause 

 it. 



Symptoms: In simple diarrhea there is a dis- 

 charge of liquid feces without any constitutional 

 disturbance. The feces may be passed without 

 any apparent pain or inconvenience to the animal. 

 In other cases the discharges are very frequent 

 and painful, which cause the animal much dis- 

 tress; this form is usually accompanied with fever, 

 quick pulse, fast breathing and loss of appetite and 

 a tucked-up appearance of the abdomen, and the 

 animal very soon becomes exhausted. There is a 

 form of diarrhea which sometimes will be seen in 

 the pig, caused by derangement of the liver, and 

 may be of two kinds: first the form which is 

 caused by an increase in the secretions of bile; 

 the feces are liquid of a bright yellow color, at 

 other times they will be green from the action of 

 acid in the bowel, and the passage is accompanied 

 by severe straining and pain and usually vomiting. 

 Second form differs from the first in that the pas- 

 sages are black or brown and of a very unhealthy 

 appearance and foul-smelling. In these cases 



