28 



NON-SPECIFIC OR GENERAL DISEASES 



from the tails of horses ; sheep may nibble wool ; sows may within 

 a short time after giving birth to their pigs, kill and eat them ; 

 chickens may pick and eat feathers. Innutrition may accompany 

 the abnormal appetite, as very frequently the affected animal 

 shows a disposition to leave its feed in order to eat these injurious 

 and innutritions substances. In ruminants, the wool or hair 

 may form balls and obstruct the opening into the third compart- 

 ment, causing chronic indigestion and death. 



The treatment consists in the removal of the cause. Feeding 

 a ration that meets the needs of the system, clean quarters and 



Fig. 8. 



Fig. 9. 



Fig. 8. — Photograph of model of horse's stomach: (A) left portion, (C) oesophagus, (D) 



right portion, and (E) intestine. 



Fig. 9. — Photograph of model of stomach of ruminant: (A) rumen, (B) reticulum, (C) 



omasum, and (£) abomasum, 



plenty of exercise are the most important preventive lines of 

 treatment. In such cases medicinal treatment (saline and bitter 

 tonics) may be indicated. It is usually advisable to remove the 

 affected animals from the herd or flock in order to prevent others 

 from imitating them. 



DISEASES OF THE STOMACH 



There is a remarkable difference in the development of the 

 stomachs of solipeds and ruminants. 



The horse's stomach (Fig. 8) is simple and has a capacity 



