40 DISEASES OF THE BRONCHI _ 



and brisket), dyspneic and cachectic. The -symptoms in 

 calves are much the same as those in lambs. 



Diagnosis. — A positive diagnosis can be made only on 

 necropsy or by microscopic examination of the feces or 

 bronchial exudate coughed up by the patients. 



Prognosis. — The prognosis depends upon the severity of 

 the symptoms and the age and condition of the patient. 

 The disease is much more serious in lambs and calves than 

 in pigs. Adult animals frequently recover spontaneously. 

 In Iambs the mortality will vary from 10 to 70 per cent, 

 in different outbreaks; in calves the prognosis is more favor-' 

 able. 



Treatment.— The most effective treatment consists in 

 intratracheal injections of antiparasitic drugs. The use of 

 a spray or the inhalation of sulphur fumes, smoke from 

 burning feathers, etc., affords usually only temporary relief. 

 The following mixtures may be used intratracheally: 



1$ — 01. terebinthinse, < 



01. olivEe aa giij 



Creolini .... Si'ss 



M. Sig. — Inject into the trachea 5 c.c. for lambs, 20 c.c. for calves; repe.at 

 twice at four-day intervals. 



^ — Creosoti 5v 



01. olivae . . . giij 



M. Sig. — Intratracheal injection 5 c.c. for lambs, 15 to 20 c.c. for calves; 

 repeat in four days. 



Potassium picronitricum 1 per mille has given good results 

 (20 to 60 c.c. according to age). 



Prophylaxis. — The sheep and lambs should be removed 

 from infested pastures and fed highly nutritious food. 

 Water should be supplied from a well and dry pavement 

 kept about the drinking troughs. The sheep pens, lots, 

 mangers, floor, etc., should be thoroughly disinfected. If the 

 floor is of earth it should be removed to the depth of six 

 inches and filled in with fresh uninfested clay or cemented. 

 Infested fields should be thoroughly tile-drained and culti- 

 vated. Many sheep owners recommend that tobacco 

 leaves mixed with salt be made accessible to the sheep at all 

 times. Sulphate of iron and salt may be fed once weekly 

 with the grain. 



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