farmers' institutes. 751 



tions are not ihythniieal, but may be miuli more frequent at one time 

 than at another. After exercise the jerliing is more violent and is more 

 pronounced after a full meal than when the stomach is empty. Thumps 

 interfere with the pig's appetite to a certain extent, and it does not 

 tlirive as it should. In some thoy lose flesh quite rapidly and become 

 very thin. The course of the disease is from a few days to a few weeks. 



Treatment.— Exercise alone will generally affect a cure. When the 

 disease develops in a litter they should be turned on pasture and given 

 plenty of opportunity to run around. If this can not be done they should 

 be given exercise in some other way. From three to fifteen di'ops of tinc- 

 ture of opium can be administered in a little oil every three or four hours 

 until relieved. It is generally best to administer a physic at the begin- 

 ning of the trouble; from one to two tablespoonfuls of raw linseed oil. 



Diseases of the Nervous System. Congestion and Anemia of the Brain. 

 Causes.— In this disease the blood vessels of the brain become engorged 

 with blood. Fat plethoric hogs are predisposed to this condition. The 

 exciting causes are sunstroke, exertion, tumors and parasites pressing on 

 the brain and blows on the head. Congestion may occur in some of the 

 specific diseases. 



Anemia of the brain is due to an insufficient amount of blood in the 

 brain, and may be caused by a weakness in the heart action or abundant 

 hemorrhage. 



Symptoms.— These generally come on very suddenly. The hog shows 

 symptoms of excitement and sensitiveness or appears dull and drows}^ 

 Death may occur in a short time. Apoplexy due to rupture of capillaries 

 in the brain sometimes occurs. The disease tends to merge into an in- 

 flammation of the brain. 



Treatment.— Place the hog in a cool place and apply water or ice to 

 the head. Bleeding at the beginning may be followed by good results. 

 As a purgative four or five ounces of linseed or castor oil can be given. 

 The after treatment consists in keeping the hog quiet and in a cool, com- 

 foi'table place. In anemia of the brain the medicinal treatment is along 

 the line of stimulants and wet applications to the head are contraindi- 

 cated. 



Inflammation of the Brain and Its Membranes. Encephalitis. Causes. 

 — As causes of this disease can be mentioned high temperature, as in 

 summer, unusual exercise, sudden changes in the feed, overfeeding, para- 

 sites (cysticercus), unsanitary conditions and injuries to the head. In- 

 flammation of the brain occurs in some infectious diseases. It may follow 

 a congestion of the brain. 



Syniittonis,— They usually set in abruptly, the hog apparently in per- 

 fect health will, within a few hours manifest serious symptoms of a nerv- 

 ous disorder. The disease is usually ushered by a period of dullness. 

 In some cases, however, the hog appears nervous and excited from the 

 first. During the period of excitement or delirium, the hog champs its 



