224 CHAPTER 23. 



fresh air, warm clothing, with the greatest attention to feeding and in 

 some cases the use of stimulants and tonics are necessary. The patient 

 must be kept in a cool loose box, and his appetite, which is generally 

 very capricious, must be tempted with grass, carrots, bran mash mixed 

 with linseed, skim-milk, stale bread, or anything else he will take. 



If tonics are required, iodide of iron in doses of a drachm once or 

 twice a day, or sulphate of iron or of copper in draclun doses with two 

 drachms of gentian may be given daily. It is usually advisable to 

 change the tonic after a few doses. Excess or unsuitability of a tonic is 

 indicated by a want or falling off of the appetite. In cases, however, 

 which are progressing favourably. Nature had better be left to herself ; 

 and tonics should only be resorted to when the symptoms really indicate 

 the need of them. In some cases medicine may be required to regulate 

 the bowels, but it must be of a very mild character, such as small doses 

 of linseed oil. If much debility remains, a pint and a half of good stout 

 may be given twice daily in addition to the tonics and other dietetic 

 treatment. 



As a rule, if the animal can be induced to feed, we may hope for the 

 best. As strength returns, and when the pulse has fallen to its natural 

 level, a little led exercise may be given. Bruised oats, which are easy 

 of digestion, may be allowed in small quantities. If all goes well, we 

 may look for complete convalescence in about six weeks, and the horse 

 may then be gradually brought into work. 



The nature of the work, for which he will be fit, will be entirely 

 dependent on the amount, if any, of alteration which has taken place in 

 the structure of the organs. The extent of those alterations may be 

 ascertained partly by auscultation, partly by the movements of the 

 flanks in respiration, partly by the nature and sound of the cough, if any, 

 and lastly by testing the state of the respiratory organs by galloping the 

 animal. 



CHAPTER 23. 



CHRONIC DISEASES OF THE ORGANS OF RESPIRATION. 



450. Chronic Cottgh. — Nature and seat. 451. Ti'eatment. 452. 

 Thick ^vst). — Nature and causes. 453. Treatment. 454. Roaring. — 

 Nature and seat. 455. Causes. 456. The Larynx. 457. Cause of the 

 immovedbility of the Arytenoid Cartilage. 458, Other causes of derange- 

 ment of the Lary'ix 459 Treatment. 460. Class of horses predisposed 

 to Roaring. 461. Kigh blowers. 462. Grunting. 463 Whistling. — 

 Nature, seat, and causes. 464. Treatment. 465. Broken Wind. — • 

 Symjjtoms and seat. 466. Causes. 467. Emphysema.. 468. Treatment. 



