. Eggs and egg farms : Trustworthy information regarding the successful production of eggs--the construction plans of poultry buildings and the methods of feeding that make egg farming most profitable .. . 47—CONVENIENT COLONY HOUSES year the most vigorous descendants of your best layers, you will intensify both these qualities in your strain and produce layers that will lay more eggs than their ancestors did. When you have arrived at this period of your breeding operations—that is, when by a few years of this systematic breeding, you have fixed vigor and a good egg record in your strain, you
. Eggs and egg farms : Trustworthy information regarding the successful production of eggs--the construction plans of poultry buildings and the methods of feeding that make egg farming most profitable .. . 47—CONVENIENT COLONY HOUSES year the most vigorous descendants of your best layers, you will intensify both these qualities in your strain and produce layers that will lay more eggs than their ancestors did. When you have arrived at this period of your breeding operations—that is, when by a few years of this systematic breeding, you have fixed vigor and a good egg record in your strain, you can profitably practice some inbreeding. By in- breeding you can improve your egg yield quicker than by selection. But be very careful to select only the most vigorous and healthiest individuals from your few best layers. We will suppose you have just such a hen with a large egg record. You can mate her to her most vigorous and best developed son, and in this same pen you may also put the hens which have given 3'*^^ tlie largest number of eg'gs. The foUov^ing year you can mate one of these inbred cockerels to the pullets bred by the first cockerel, but out of the other hens —they will be half-sisters. Of course, you will always pick out your highest record hens to mate to these choice breeders. You will be pleased with egg records of the pullets bred from this last mating. The majority will be excellent layers, and will be the very best of breeders. If you have been careful to select only vigorous birds and the best layers in your matings, you will notice very soon a great improvement in the average egg yield. You can then use these inbred cock- erels on unrelated hens, but only on the good layers, and then follow up as before. Great productiveness in our hens is a trait which can be easily fixed by breeding. The principles governing our breed- ing are the same as those which apply to all other classes of animal breeding; it is only the application that differs. With , th
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