POULTRY. 



Between the ages of 6 and 13 weeks it has been determined 

 that on an average it will require from 4 to 4f pounds of feed 

 to produce i pound of gain. 



From 13 to 26 weeks old it will require from 4^ to 5J 

 pounds of feed to produce i pound of gain. 



PROBLEM. 



When 5 pounds of feed will produce 1 pound of poultry, find the 

 profit in producing 100 pounds of poultry @ 20c per pound, when feed 

 costs 2c a pound. 



A Comparative Study of Growth in Animals. 



An analysis of the milk of mammals as used for feeding 

 their young and a comparison of the rapidity of growth show the 

 following results : 



(This relationship is indicated in the following table taken 

 from bulletin 201 of the Ohio Experiment Station:) 



From the above table it will be noted that the rapidity of 

 growth is closely related to the mineral nutrients, ash, calcium 

 and phosphorus. 



