PROPER MANAGEMENT . 267 
of production of eggs for breeding purposes, the actual laying 
season for the eggs which are selected is very short, and during 
the more natural season of heavy production. 
The exact profit which will be realized depends on two factors,— 
cost and amount of production. All the necessary factors of 
environment and feed should be provided at a minimum cost 
without decreasing the efficiency, keeping in mind that larger pro- 
duction means a greater amount of products for sale. The aim 
is to get the maximum production at the minimum cost. If records 
are carefully and regularly kept, there will be found a limit beyond 
which increased expenditure in feed and labor is not compensated 
Fig, 135.—White Leghorns. There is every sign of high vitality. (Photo by Rancocas 
Poultry. Farm.) 
for by an increased yield. The relation between cost and amount. 
of production should invariably be studied. 
Proper management for successful egg production may be 
briefly summarized under the four headings: (1) Selection of 
stock; (2) suitable environment; (3) proper feeding at all seasons; 
(4) care in marketing. These may be considered the four corner- 
stones upon which is built the successful management of laying 
stock, all other conditions being secondary. 
Selection of Stock.—The best way to start is to build up the 
home flock with winter egg production as the main object. The 
breed to be selected depends upon market requirements and upon 
the size and character of the farm. Large, extensive plants will 
yield large amounts of eggs which must be shipped to special 
markets at some distance. The poultryman should first determine 
