SUCCESS IN POULTRY CULTURE 
stock is purchased, should be one who 
confines himself to that breed alone, for 
reasons which are obvious and that need 
not be stated here. 
As the lack of space prevents me from 
entering into a full discussion of the art 
of line-breeding, I will only say that it 
consists, mostly, of the art of breeding a 
single strain or family in such a way as 
always to breed from those that are the 
farthest related or are the least kin to one 
another. A breeder should never be 
tempted to mate two birds that are too 
close kin because their qualities seem to 
indicate that good results would follow 
such a mating, for to do so would be more 
liable to bring bad results than good. 
While it is probably true that a standard 
of perfection, as to plumage, can be more 
rapidly approached by inbreeding, such 
progress will be at the expense of vigor 
and fertility, and therefore the method 
should not be practiced. 
As egg production is one of the most 
desirable qualities that can be bred into 
a strain of fowls, and that quality can 
not be obtained by inbreeding, then 
it is obvious that inbreeding is a 
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