196 



HOUSING 



LABORATORY EXERCISES 



Exercise No. 49. — Amount and Value of Poultry Manure. — 

 Secure the co-operation of at least three or four members of 

 the class by getting them to keep an exact record, for about 

 one month, of the time it takes them to clean off the dropping 

 boards. Also the amount of absorbent used, and the amount 

 of droppings produced from a given number of birds. From 



Fia. 111. — -A commercial poultry house in excellent condition for the layers. The 

 litter on the floor is about fifteen inches deep. 



their figures the class can determine the amount and value of 

 droppings produced per one hundred birds for a given period. 

 Exercise No. 50. — Perch Rooui. — Get as many members 

 of the class as possible to measure for a numlier of consecu- 

 tive nights the amount of perch room occupied by a given 

 number of birds. The figures obtained can be jircsontcd to 

 the class. Differences between bi'eeds and at different seast)ns 

 will be noted. The cuu.ses may be explained by the class. 



