Poultry Hygiene 15 



after another rinsing down and cleaning out of accumulated 

 dirt, let the house dry out for a day or two. Then make a 

 searching inspection to see if any dirt can be discovered. If 

 so, apply the appropriate treatment as outlined above. If, 

 however, everything appears to be clean, the time has come 

 to make it really clean by disinfection. To do this it is 

 necessary to spray or thoroughly wash with a scrub brush 

 wet in the solution used all parts of the house with a good 

 disinfectant at least twice, allowing time between for it to 

 dry. For this purpose .3 per cent cresol solution is recom- 

 mended. The chief thing is to use an effective disinfectant 

 and plenty of it, and apply it at least twice. A discussion 

 of disinfectants immediately follows this section. To com- 

 plete the cleaning of the house, after the second spraying of 

 disinfectant is dry apply a liquid lice killer (made by putting 

 1 part crude carbolic acid or cresol with 3 parts kerosene) 

 liberally to nests and roosts and nearby walls. After all 

 this is done the house will be cleaji. In houses cleaned 

 annually in this way the first step is taken towards hygienic 

 poultry keeping. 



The same principles which have been here brought out 

 should be applied in cleaning brooders, brooder houses, and 

 other things on the plant with which the birds come in con- 

 tact. 



What has been said has reference primarily to the annual 

 or semiannual cleaning. It should not be understood by 

 this that no cleaning is to be done at any other time. On 

 the contrary the rule should be to keep the poultry house 

 clean at all times, never allowing filth of any kind to accumu- 

 late and using plenty of disinfectant. 



Disinfection. — In the matter of disinfection there are 

 several options open to the poultryman. He may make his 

 own disinfectant, or he may purchase proprietary compounds 

 like Zenoleum, Carbolineum or a host of other "eums" 



