Poultry Hygiene 19 



brush. Being a clear, watery fluid it can be used in any 

 spray pump without difficulty. For disinfecting brooders 

 or incubators which there is reason to believe have been 

 particularly liable to infection with the germs of white 

 diarrhea or other diseases the cresol may be used in double 

 the strength given above and applied with a scrub brush in 

 addition to the spray. 



C. Fresh Air and Light. — Too great stress cannot be 

 laid on the importance of plenty of fresh air in the poultry 

 house if the birds are to keep in good condition. And it 

 must be remembered in this connection that "fresh" air, 

 and cold stagnant air are two very different things. Too 

 many of the types of curtain front and so-called "fresh" air 

 houses now in use are without any provision other than an 

 obliging southerly wind, to insure the circulation or changing 

 of air within the house. Even with an open front house it 

 is w^se to provide for a circulation of air in such way that 

 direct drafts cannot strike the birds. This applies not only 

 to the housing of adult birds in laying houses, but also to 

 the case of young stock in colony houses on the range. 

 Further a circulation of fresh air under the hover in artificial 

 rearing is greatly to be desired and will have a marked effect 

 on the health and vigor of the chicks. 



Not only should the poultry house be such as to furnish 

 plenty of fresh air, but it should also be light. The prime 

 importance of sunlight in sanitation is universally recognized 

 by medical authorities. Disease germs cannot stand pro- 

 longed exposure to the direct rays of the sun. Sunlight is 

 Nature's great disinfectant. Its importance is no less in 

 poultry than in human sanitation. The following statement 

 made some years ago (1904) by a writer signing himself 

 "M" in Farm Poultry (Vol. 15) brings home in a few words 

 the importance of having plenty of light in the poultry 

 house. 



