File:The call of the hen; or, The science of selecting and breeding poultry for egg-production (1919) (14776354185).jpg

Identifier: cu31924003143637 (find matches)
Title: The call of the hen; or, The science of selecting and breeding poultry for egg-production
Year: 1919 (1910s)
Authors: Hogan, Walter, d. 1921
Subjects: Poultry
Publisher: Leavenworth, Kan., American school of poultry husbandry
Contributing Library: Cornell University Library
Digitizing Sponsor: MSN

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greatsecret in breeding that would verify the saying that Like begets like.The first discovery was, that if we wished to raise pullets that wouldbe good layers, we would have to mate good-laying hens with the sametype of male bird, and not with the meat type—that is, the male birdswould have. to be of the same temperament, of the same anatomy,and of the same physiology as. the hen. I found that if I had a hepthat laid 180 eggs by the trap-nest, and if I wanted to raise a lot ofpullets that would average 180 eggs, I could not depend on the trap- 60 THE CALL OF THE HEN. nest to aid me any farther than to tell me the number of eggs a hen laid,what particular eggs she laid, and the progeny of each hen, both maleand female. I also found great variations in type in mature cockerelsfrom each individual hen, which we considered was due to the differencein type of the male bird and the difference in vitality of one or bothbirds at different times during the breeding season; sometimes the hen
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Fig. 35—Three degrees of amativeness (otherwise called prepotency). THE CALL OF THE HEN. 61 at Other times the cock bird, transmitting their characteristics. WhenI was assured of this through numerous experiments, I reasoned thatmy failures were because the m,ale birds were of a different t3rpe fromthe hens, and when I hid demonstrated that the male birds were of adifferent physiology by practice and scientific measures, and mated ac-cordingly, I flattered myself with the assurance that I had discoveredall that was necessary in order to breed poultry intelligently. Butafter more experiments, I was not wholly satisfied with results; and asI had adopted the motto, Like begets like, I reasoned that althoughthe birds we had mated were alike, as far as we could see, the remainingdifference must be some place where I had failed to look for it. Myknowledge of the different variations in form of the skulls of animalsand birds of the same breed, together with the knowledge I possessedof huma

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