Pedigree Poultry Breeding. 73 



point one approaches the records with the desire of looking 

 out the pedigree of any bird the task will be found easy. If 

 one starts with the chick to look up the pedigree the point of 

 departure is the "chick-adult-mating" index. This index refers 

 to the proper mating sheet. If one starts from an adult bird 

 cither the "adult mating" index or the descriptive catalog refers 

 again to the proper mating number. The mating sheets them- 

 selves aie arranged in the book in consecutive order so that 

 to turn to a given mating sheet is no more trouble than to turn 

 to any given page of a book. 



Supplementary Records, 

 the egg record. 



The simplicity and broad scope of this pedigree system 

 enables any number of special records to be hung on it, with 

 a knowledge that the record of any individual hen may be 

 easily found. The egg record sheet is perhaps the most im- 

 portant of these special sheets, both because of its practical 

 appeal and because it is in truth the "adult number" index as 

 these sheets are filed according to this adult and contain the 

 other index numbers (chick, breeders and mating). 



This sheet shown in Figure n has the following features 

 at the top of the page; (i) a complete record of the house and 

 pen in which the bird is found; (2) the age and variety of the 

 bird; (3) the bird's chick band number (see p. 84); (4) the 

 original pullet number; (5) the bird's adult number at the right 

 corner of the page by which the sheets are arranged; (6) the 

 mating number that produced this bird. The middle of the 

 sheet is taken up with the complete year record for the egg pro- 

 duction of these birds divided conveniently to get the totals of 

 the different cycles. The bottom of the page contains the per- 

 tinent data as to the bird itself. 



