. Annual report of the Cornell University Agricultural Experiment Station, Ithaca, Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). CORNELL IReabitiQ^Course for jfatmers Published Monthly by the New York State College op A'^riculture AT Cornell University from November to March, and Entered at Ithaca as Second-Class Matter under Act op Congress July i6, 1894. H. Bailey, Director. Charles H. Tuck, Supervisor. SERIES IX BREEDING ITHACA, N. Y. MARCH. 1909 No. 45 CONSTITUTIONAL VIGOR IN POULTRY BREEDING IMPORTANCE OF CONSTITUTIONAL VIGOR IN THE BREEDIN
. Annual report of the Cornell University Agricultural Experiment Station, Ithaca, Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). CORNELL IReabitiQ^Course for jfatmers Published Monthly by the New York State College op A'^riculture AT Cornell University from November to March, and Entered at Ithaca as Second-Class Matter under Act op Congress July i6, 1894. H. Bailey, Director. Charles H. Tuck, Supervisor. SERIES IX BREEDING ITHACA, N. Y. MARCH. 1909 No. 45 CONSTITUTIONAL VIGOR IN POULTRY BREEDING IMPORTANCE OF CONSTITUTIONAL VIGOR IN THE BREEDING OF POULTRY By J. E. Rice and C. A. Rogers This bulletin is written primarily for the purpose of pointing out the physical differences that distinguish strong from weak fowls, and to give the results of experiments which show the variation in production. 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 Cornell University. Agricultural Experiment Station. [Ithaca, N. Y. ?], 1900-1910. James B. Lyon, State printer)
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