SUCCESS IN POULTRY CULTURE 
flocks laid the same number of eggs, and 
would sell on the market for the same 
amount, and the eggs of each flock sold 
for the same amount, and the cost of 
keeping them was equal, the correct con- 
clusion would be that there was no differ- 
ence in the profits of each flock. But it is 
probable that six-months-old pullets would 
cost more on the open market than older 
hens, which would make the interest on 
the money invested in them more than it 
would be on the older hens; then, it would 
seem that if the pullets just laid enough 
more eggs to cover the difference in their 
cost and interest charge, the profits on 
each flock would be the same; but such a 
conclusion would not be correct, for the 
pullet eggs, even though they did not out- 
number those of the older hens, would be 
worth very much more because a very 
much larger percentage of them would be 
laid when eggs bring the highest price; 
but the pullets will not only lay higher- 
priced eggs, but they will lay considerably 
more of them. 
There is another factor to be con- 
sidered: The ratio of profit with increase 
in egg production. For example: If a 
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