184 



COMMERCIAL POULTRY RAISING 



reserve in the event of a failure of tlie regular supply. Usually 

 this surplus consists of fat. 



Table VII 



Digestible Nutrients Required per Day for Each ioo Pounds of Fowls 



FOR Bodily Maintenance 



Digestible Nutrients Required per Day for Each ioo Pounds of Fowls 



IN Full Laying 



Hens (5 to 8 pounds) I 3.30 I 0.20 I 0.65 | 2.25 I 0.20 I i to 4.2 



Hens (3 to 5 pounds) | 5.50 | 0.30 | i.oo | 3.75 | 0.35 | t to 4.6 



Digestible Nutrients Required per Day for Each ioo Pounds 



of Growing Chicks 



First 2 weeks. ...... 



Second 2 weeks 



From 4 to 6 weeks . . . 

 From 6 to 8 weeks. . . 

 From 8 to 10 weeks. . 

 From 10 to 12 weeks. 



I to 4.1 



I to 3.4 



I to 3.4 



I to 3.7 



I to 4.3 



I to 4.4 



Digestible Nutrients Required per Day for Each ioo Pounds 



OF Growing Ducklings 



First 2 weeks 



From 2 to 4 weeks. . . 

 From 4 to 6 weeks . . . 

 From 6 to 8 weeks . . . 

 From 8 to 10 weeks. . 

 From 10 to 15 weeks. 



I to 3.7 

 I to 3.2 



I to 3-3 



I to 3.8 



I to 4.1 



I to 4.1 



Throwing a pailful of food to a flock of birds at regular intervals 

 is not feeding them in the strict sense of the term. To feed stock 

 intelligently, which is to say economically and properly, means to 

 cater to their bodily requirements in every particular. First 

 of all we must have some knowledge of the demands of the body 

 and its functions. We must have a similar knowledge of the 

 composition of the different foodstuffs and their availability in 

 meeting the demands of the body. We must consider the me- 



