PRINCIPLES AND PRACTICES OF PIGEON BREEDING ST 



we get group iri \\hicli is 2rj-32 of tlic lilood of tlio original coclv 

 1 or i/g more of his blood than is contained in group 14. On the 

 fefnale line by mating as shown by lines and arrows in chart 

 we get group IT vvhicli is also 25-32. A cock from 1.') mated to 

 a hen from IT maintains o\u- group in each generation having 

 1^ blood each of the original birds. Now a hen from group 15 

 mated to a cock from group ^\ill give us group 19 which birds 

 will have 53-6-'i- of the original cock blood. On the female side 

 we get grouj) 21 \\hich is ."vWii of the blood of the original hen 

 2. Here we have birds that are practically the original blood of 

 the cock and hen with which we started and have therefore es- 

 tablished two new strains antl in 20 ha\'c the original strain. It 

 must be remembered that whenexcr xou make a mating in either 

 the male or female lines you nuist make a similar one in the 

 other line so that you can alwa\"s get back a group containing 

 Yo blood of the original pair. 



In the chart the arrows show the direction of flow of the 

 blood and the little circidar lines are intended to show the 

 straight lines not connecting but as being seiiarate and distinct. 



LINE BHREDING AS AFFKC.TINC SOl'AB PRODUCING 

 BIRDS: No do\d)t some of ni\- i-eaders will say that the fore- 

 going is all right as far as exhibition stock is concerned but 

 wonder wherein it applies to birds used in conunercial scjuab 

 production. The answer is very easy as I sei.' it. ^^'e must 

 realize that wljenever we find an excellent pair of birds throw- 

 ing large white meated scpiabs and plenty of them v\e can use 

 this pair of Inrds in producing others of their kind and in this 

 way gradually build up a flock or strain that will be far 

 superior to others in our lofts, ^^■e will then know the parentage 

 of our birds and know that the\- are of the very best and can 

 feel much safer as regards what our squab breeding birds can 

 and will do for we know that they have the correct breeding 

 behind them. \\'e can closely approximate this by carefully 

 culling but the chances for doing so are not as good and as 

 certain as by line breeding several pairs of our best birds be- 

 cause in line breeding we are more apt to get better birds. 



