BREEDING, LINE AND IN-BREEDING 



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the veteran Light Brahma breeder. In this chart the solid circles 

 and segments represent the male blood elements, and the solid lines 

 that a male has been chosen from the group from which they start. 

 The white circles and segments represent the female blood ele- 

 ments and the dotted lines that the females have been chosen from 

 the group from which they start. The shaded circle represents a 

 scheme for the admission of new blood. Suppose we have two 

 extra good birds which when mated together produce high-class 

 offspring. Then the problem is how to perpetuate the quality of 



Lir/E BREED/KG 



i 



W/JLE L/ne. FEWLE LI&E 



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BY COURTESY OF "BREEDER'S GAZETTE." 



the parents and offspring without the dangers of close in-breeding 

 or of destroying the results of several years of work, by violent 

 out-crossing. By following line breeding, three blood lines may 

 be developed, one of which shall contain a preponderance of orig- 

 inal male blood, one a preponderance of original female blood, and 

 the third equal proportions of original male and female blood. 

 In the chart let 1 represent the original male and 2 the original 



