DISEASES OF POULTRY. 49 



tained, they search for and take the usual quantity of 

 food and they soon regain their former activity. 



The nature of the disease may be readily determined 

 from the symptoms above enumerated. If, however^ 

 there is any doubt, the trachea of a bird which has 

 died from the disease should be slit open and examined 

 for the syngamus. In case no birds have died, one of 

 the methods for extracting the worms from the trachea 

 of the living bird should be tried (see treatment). It 

 is important to the poultryman that the nature of the 

 disease should be detected as soon as possible after it 

 appears upon his premises in order that precautions 

 may be taken to stop the spread of the infection and to 

 eradicate it from the place. 



Treatment. — Separate the sick birds from the well 

 ones as soon as the disease is detected and clean up 

 the coops, pens and houses where they have been. 



Disinfect all these places and also the drinkingtroughs 

 or cups with a five per cent solution of crude carbolic 

 acid or with boiling water. Burn the bodies of the 

 birds which die. Keep the infected birds in a house 

 which can be easily cleaned and disinfected, and see 

 that this house is kept disinfected with hot water or 

 five per cent carbolic acid solution. Megnin recom- 

 mends for disinfecting enclosures and contaminated 

 runs, sprinkling with a solution of one part of salicylic 

 or sulphuric acid in one hundred of water. Provide 

 pure water and uninfected food. 



By careful manipulation the worms may often be re - 

 moved from the trachea and the chicken radically cured 

 in that way. To accomplish this either a feather or a 

 long hair from the horse's tail may be used. If a feather 

 is selected it is stripped of the web except near the tip. 

 This may be used dry or it may be moistened with coal 



