Catarrhal Bronchitis in Swine. 221 



or trachea. This clears the passages, relieving the breathing and 

 temporarily arresting the stridor. This is followed by a loose 

 cough, a free discharge from the nose and a mucous or sibilant 

 r^le on ausculation. Percussion causes grunting but gives healthy 

 resonance. The disease reaches its height on the fifth day and 

 recovery may be almost perfect on the eighth. ^ Its chief danger 

 is from a complication with pneumonia or pleurisy, or from its 

 merging into the chronic form. 



Chronic bronchitis in the ox is characterized by a persistent 

 disturbance of the respiration, paroxysms of coughing, a white 

 flocculent discharge from the nose, increasing emaciation, pallor 

 of the mucous membranes, a mucous r^le over the windpipe and 

 median part of the chest and a cooing sound over other points. 

 If left to itself emaciation becomes extreme, the skin is harsh, 

 inelastic, attached to the ribs and covered by vermin, and death 

 usually ensues from diarrhoea or consumption. 



After death the lesions are like those seen in the horse, unless 

 there is the complication of tuberculous or other disease of the 

 substance of the lungs. 



Treatment. Neither the general care nor the remedial treat- 

 ment differs materially from that for the horse. The principle 

 difference is in the lesser liability to superpurgation and in the 

 preference to be given to Epsom or glauber salts over aloes as a 

 laxative. Either saline may be given in dose of one pound com- 

 "bined with an ounce of ginger or other stimulants, and followed 

 up by similar diuretics, expectorants and tonics, as in the horse. 

 "The chronic form is to be treated as in the horse. 



Sheep affected with bronchitis must be treated on the same 

 general principles as the ox, only giving one-fifth the amount of 

 the different medicaments. 



CATARRHAL BRONCHITIS IN SWINE. 



This is rare as the result of such climatic vicissitudes as cause 

 the disease in other animals. Nevertheless the severe forms of 

 laryngitis, aggravated by microbian invasion, are liable to extend 

 to the bronchia, and again it has been traced to smut of corn. 

 More commonly the bronchial catarrh is caused by the strongylus 



