472 



COMMERCIAL POULTRY RAISING 



hardships on this score, — not because he neglects to give his 

 fowls the best of care, rather because, lacking the experience and 

 practical knowledge of the more seasoned poultryman, the novice 

 frequently fails to detect the first symptoms of a disease. Then, 

 too, when the novice does discover trouble, very often he has 

 not the courage to sacrifice a few birds as a precautionary meas- 

 ure. Yet drastic measures are sometimes necessary for the safety 

 of the rest of the flock, just as in a serious conflagration dynamite 



iCourtesy Kansas Experiment Station) 

 Fig. 297. — Open-front house with irregular gable roof designed to afford suffi- 

 cient head room inside where it is required. 



is used to raze whole blocks of houses, and thus check the spread 

 of the fire. 



Trivial or Contagious. — Poultry diseases may be divided into 

 two general classes : Those of a more or less trivial nature, which 

 will respond to flock treatment through the drinking water or 

 feed, and those of a highly contagious, virulent action, which 

 require individual treatment — if treated at all, for in badly in- 

 fected birds it is usually advisable to kill them at once and destroy 

 the carcass, thereby preventing the spread of contagion. 



Burying the carcass, unless it is buried very deep, is not always 



