. Poultry production. Poultry. BREEDING 123 that have resulted unfavorably, that we should look not to the kinship of blood but the kinship of defect" for the diffi- culty. Thus we may also say of the successes of line breeding that they are attributable "not to the kinship of blood but the kinship of superiority. . Success or failure with in-breeding is clearly dependent upon ; When vigor and hatching power are the first basis of selection, less will be heard of the evils of line breeding. Fig. 59. Trap nests. (Courtesy of Kansas Experiment Station.) The following ext
. Poultry production. Poultry. BREEDING 123 that have resulted unfavorably, that we should look not to the kinship of blood but the kinship of defect" for the diffi- culty. Thus we may also say of the successes of line breeding that they are attributable "not to the kinship of blood but the kinship of superiority. . Success or failure with in-breeding is clearly dependent upon ; When vigor and hatching power are the first basis of selection, less will be heard of the evils of line breeding. Fig. 59. Trap nests. (Courtesy of Kansas Experiment Station.) The following extract from a personal letter to the author from Mr. D. W. Young, of Monroe, New York, one of the very foremost breeders of fancy Single Comb White Leghorns in America, serves as an excellent illustration of the possi- bilities of intelligent inbreeding. "I really cannot tell how many birds my father first brought over from Italy in 1853. I should judge from ten to fifteen. However, in 1883 I started niy present lines with one male and one female and now have seventeen different lines. I can remember as far back as 1876 and can make an affidavit that we have never had any new blood in that time. * * *. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lippincott, William Adams, 1882-1931. Philadelphia, Lea & Febiger
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishe, booksubjectpoultry
