116 SWINE PRACTICE 



medication provide the only safe method of administering drugs in 

 cases in which there is pharyngeal paralysis. 



Cotton-seed- Meal 



Fatal results frequently, but not always, attend the feeding for 

 long periods of cotton-seed meal to swine. From experiments thus 

 far conducted it is apparent that cotton-seed as a feed is more 

 applicable to ruminants than to swine. The feeding for short periods 

 has in many instances been beneficial. 



Lesions. — On autopsy, excessive quantities of a serous fluid are 

 found in the pleural and peritoneal cavities. The lung is congested, 

 inflamed, and frequently edematous. Congestion in all internal 

 organs may be observed. 



Symptoms. — The feces are firm, although diarrhea may be present. 

 Unthriftiness, irregular appetite or inappetence, weakness, unsteady 

 gait, blindness and dyspnea are common symptoms. The animals 

 finally assume the decubital position, and may struggle or may 

 become comatose. Death occurs in from a few hours to several days, 

 sometimes occurring almost instantaneously with premonitory symp- 

 toms. 



Treatment. — Green feed and exercise have a tendency to coun- 

 teract the injurious effects of cotton-seed meal. Free access to wood 

 ashes is a valuable but not an absolute preventive of cotton-seed 

 poisoning. Iron compounds have also been used and proved bene- 

 ficial, while the wood ashes and iron salts are preventive but not cura- 

 tive agents. The treatment of affected animals has not been suc- 

 cessful . 



PARASITES 



The intestine of swine is a common abode for parasites. Parasitic 

 infestation is most prevalent in young animals, but because of the 

 mode of eating and the habits of swine it is rather the exception to 

 find even an old hog entirely free, from intestinal parasites. Their 

 injury to the host depends upon the kind and the number of para- 

 sites. Intestinal parasites injure swine as follows: 



1. Abstraction of nutrition. 



2. Obstruction. 



(a) Of the lumen of the intestine. 



(b) Of the lumen of the hepatic duct. 



3. Irritation of mucous membrane due to movement. 



