26 POULTRY FARMING 
With the increasing interest in poultry work has come an 
ever-increasing demand for poultry literature of all kinds. The 
trained and experienced writer can find profitable compensation 
in editorial work, in the writing of poultry text-books, and the 
writing of magazine articles and news items. 
The demand for poultry appliances of all kinds has been respon- 
sible for the development of big industries for the manufacture, 
sale, and distribution of incubators, brooders, hoppers, feeds, and 
an endless list of auxiliary appliances. 
The business of poultry husbandry is an immense in- 
dustry, highly specialized, yet diversified as to the variety 
of products and the great variety of occupations associated 
with it. 
Separate Poultry Industries.—Poultry keeping as an industry 
may be grouped under two main divisions,—namely, exclusive 
poultry keeping, and poultry keeping as a side line to some other 
branch of work. The former is properly called specialized farming, 
as all endeavors of the farmer are centred on the care and manage- 
ment of poultry. In the majority of cases poultry keeping is 
carried on as a side line. The extent of that one branch of the 
farm work may vary from a very small place in the time and atten- 
tion of the owner to that of the largest branch of the work. Most 
poultry products are from the general farms of the country. 
Exclusive poultry keeping may be subdivided again into special 
industries, as (1) egg farming and (2) meat farming. These 
special industries may be, and often are, combined; but one is 
usually given the greater prominence. Egg production is often 
the leading one with the production of meat an adjunct to it. 
Large, exclusive egg farms are usually located in the thickly settled 
sections of the country, near large cities, and a special price is 
received for the guaranteed marketed product (Fig. 23). Some 
egg farms make a specialty of eggs only twenty-four hours old, 
the date of laying being stamped on the shell; others sell sterile 
eggs, for which an increased price is paid, if properly marketed. 
Poultry meat farms may be grouped under the heads: broiler, 
roaster, or capon farms. These may be run exclusively or in com- 
bination, or either one may be ruh in connection with egg farming. 
The latter is undoubtedly the best practice. Where the production 
of meat is the leading part of the business, it requires much more 
careful management, owing to the fact that the returns are not 
continuous the entire year. There are certain seasons during which 
