Identifier: callofhenorscien01hoga (find matches)
Title: The call of the hen; or, The science of the selection and breeding of the poultry for egg-production
Year: 1914 (1910s)
Authors: Hogan, Walter, d. 1921
Subjects: Poultry
Publisher: Mountain Grove, Mo., American School of Poultry Husbandry
Contributing Library: The Library of Congress
Digitizing Sponsor: Sloan Foundation

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e C would l)e at the extreme end of the projection, and Dwould pass outside the skull. The part of the skull where thearrows 1, 2, 3, 4 point contains the rear lobe of the l)rain, andexamination will show that the develojMnent of this portion ofthe brain corr(>si)onds to the shape of the skull at tliis point. And right here is w^here we were on the point of the secondgreat secret in breeding that would verify the saying thatLike begets like. The first discovery was, that if we wishedto raise pullets that would l)e good layers, we would have tomate good-laying hens with the same type of male bird, andnot with the meat type—that is, the male birds would haveto be of the same temperament, of the same anatomy, and ofthe same physiology as the hen. I found that if I had a henthat laid 180 eggs by the trap-nest, and if I wanted to raise alot of pullets that would average 180 eggs, I could not dependon the trap-nest to aid me any farther than to tell me the THE CALL OF TIIP: HEN. />S
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Fi(i. 35—Tlivec degi-ees of aniativeness (otherwise called propo-teney) numlxT of c^ss a hen laid, what particular eg^s sh(^ laid, andthe ))r()p;(iiy of each hen, both male and female. I also foiiiulgreat variations in type in the mature cockerels from t^ich in-dividual hen, wliich wv considered was due to tiie difference in 74 THE CALL OF THE HEN. type of the male bird and the difference in vitahty of one orboth birds at different times during the breeding season; some-times the hen, at otlier times the cock bird, transmitting theircharacteristics. When I was assured of this through numerousexperiments, I reasoned that my failures were because themale birds were of a different type from the hens, and when Ihad demonstrated that the male birds were of a differentphysiology by practice and scientific measures, and mated ac-cordingly, I flattered myself with the assurance that I haddiscovered all that was necessary in order to breed poultryintelligently. But after more experiments I w

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