LARYNGITIS IN PIG. 



Frequency. Causes, wet, cold pens, exposure, withholding liquids. 

 Symptoms, prostration, dullness, cough, fever, swollen throat and neck, 

 dyspnoea, dark mucosa, sloughing of epithelium and epidermis, general 

 petechia?, foetid breath, great prostration. Lesions, gangrenous patches 

 on pharynx and fauces, ulcers, infiltrations. Treatment, hygienic, dietetic, 

 emetic, laxative, poultice, bandages, locally, astringent, antiseptic, caustic, 

 tonic. 



Sore throat is common in some localities when pigs live in 

 herds. 



Causes. Chiefly faulty hygiene. Exposed, cold and wet pig- 

 geries, cold blasts for which the pig has an extraordinary aver- 

 sion, and the deprivation of liquids in warm, dry .seasons are 

 frequent causes. 



Symptoms. These have been described by M. Pradal, who 

 divides the disease into three stages, evidently dealing with an 

 infectious malady. The first stage is marked by loss of appetite, 

 dullness, slow, listless movements, a tendency to hide under the 

 litter ; low, hoarse grunt and cough, the last aggravated by mov- 

 ing the animal ; pain in swallowing ; red, sunken eye, and con- 

 stipation. If there is no improvement on the second or third day 

 it merges into the second stage. This is characterized by a still 

 hoarser grunt, painful, hard hacking cough, difficult breathing, 

 especially in the sunshine, and a rapidly increasing swelling of 

 the throat, soon extending to both ears and as far down as the 

 breast bone. This engorgement feels soft and pasty though firm, 

 tender lumps may be felt, indicating the approaching formation 

 of abscess. It is so abuudant that suffocation may ensue in the 

 course of forty-eight hours. If the progress of the swelling is 

 not arrested it soon passes into the third or gangre7ioiis stage. 

 The breathing is more hurried ; the mouth open, the protruded 

 tongue of a bluish black color, the cough followed by a contin- 

 uous rattle, the head unsteady, swallov/ing impossible, and the 

 swelling extends to the side of the face and beneath the chest. 

 The swollen surface is cold and livid ; the bristles easily detached ; 

 it is bedewed by a sero.sity which exudes from it, and portions of 

 the dead skin tend to detach themselves. The mouth and throat 

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