PREVENTION, SYMPTOMS AND TREATMENT j, 



production of a white, yellowish or greyish membranous deposit. 

 i. Caused by mixed infection of cocci, of which the streptococcus 

 is foremost. 2. Less commonly by protozoa — Gregarines — which 

 is characterized by frequency of wart-like growths about the un- 

 feathered parts of the head. 3. Another variety in fowls is produced 

 by infusoria — Cercomonas — and is of a milder type. 



Treatment. — Roup or croup in fowl is very fatal (50-70 per 

 cent, mortality) and prevention by isolation of newly-bought fowl, 

 and of the sick, is most important. Infected premises should be 

 cleaned thoroughly, fumigated by burning sulphur or evaporating 

 formalin, and whitewashed, with the addition of 2 per cent, carbolic 

 acid to wash. Fowls dead of the disease should be burned, and 

 contaminated utensils cleaned and disinfected. 



Vaporizing oil of turpentine and oil of eucalyptus (3ii of each 

 in 1 quart of water) is useful in the henhouse. Local treatment is 

 done by painting the affected parts with hydrogen dioxide (full 

 strength with 3i sodium bicarbonate in each §ii, to prevent irrita- 

 tion). This tends to remove the membranes, which should not be 

 forcibly detached but only removed when the act is easily done 

 without causing bleeding. 



A mixture of equal parts hydrogen dioxide and Dobell's solu- 

 tion is one of the most effective local applications, containing salines 

 and carbolic acid. Innumerable other antiseptic solutions have been 

 recommended. The internal use of the following is also advisable : 



Potassi Chloratis gr. 75 



Tine. Ferri Chloridi fl 75 



Glycerini 



Aquae aa Siiss 



M. 



Sig. two teas, for large birds; yi teas, for pigeons, twice daily. 



Diarrhea is relieved by a 2 per cent, solution of tannin (m, 5 

 for pigeons; Til 10 for fowl) given in pills made with bread and 

 butter and a few grains of bismuth, which is harmless. 



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