72 POULTRY FOR PROFIT 
not the lasting power that some of the coal tar 
products possess. Recently, wood preservatives 
have been used for the purposes of ridding the 
poultry house of mites, and very good results 
Lave been obtained from this method. 
„ CHAPTER XIII. 
POULTRY DISEASES 
It is not to be supposed that poultry, living 
under the artificial conditions that man has 
ordained for them, can be entirely free from 
diseases. In fact, very few poultry men can 
say that they have not had some kind of disease 
affect their flock. Most diseases are contagious, 
so it is important to be on the watch for any 
symptoms of anything out of the ordinary. 
Sanitation plays a very important part in keep- 
. ing Hhe flock free from diseases, and clean 
methods should always prevail. Do not allow 
the house to become filthy and foul smelling. 
It is always a good precaution to disinfect the 
poultry premises at least once a year with a 
good whitewash or some strong disinfectant. 
This is about the same as taking out a life 
insurance policy for the flock. 
