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Annual Meeting
ANNUAL MEETING
REFERENCES
Benjamin, E. W., 1920. A study of selections for the
size, shape and color of hens' eggs. N.Y. (Cornell) Agr. Exp. Sta. Mem. 31. Bruckner, J. H., and F. B. Hutt, 1939. Linkage of Pea comb and blue egg in the fowl. Sci. 90:88. Hays, F. A., 1937. Inheritance of egg size and egg character. Mass. Agr. Exp. Sta. Bui. 344. Hurst, C. C , 1905. Experiments with poultry. Reports to the Evol. Comm. Roy. Soc, Rpt. II, p. 131. ,1921. The genetics of egg production in White Leghorns and White Wyandottes, and its application to poultry breeding. Trans. 1st World's Poul. Congress, p. 3. Klose, A: A., and H. J. Almquist, 1937. The pigment of egg shell membranes. Poultry Sci. 16:173-174. Koped, Stefan, 1926. An experimental study of xenia in the domestic fowl. Jour. Gen. 16:269286. - , 1927. Beitrage zur Kenntnis des Mechanismus der physiologischen Shalenfarbenvariabilitat der Huhnereier. Archiv. f. Geflug., Jahr. I, Heft. 9. Punnett, R. C , and P. G. Bailey, 1920. Genetic studies in poultry. II. Inheritance of egg-colour and broodiness. Jour. Gen., 10:277-292. Punnett, R. C , 1933. Genetic studies in poultry. DC. The blue egg. Jour. Gen., 27:465-470. Ridgway, Robert, 1912. Color standards and color nomenclature.
Annual Meeting Stevens Hotel—Chicago, 111. July 24-25 Reserve rooms direct with hotel. Banquet— Monday evening July 24. Program— Chairmen: General—Dr. D. C. Warren Nutrition—Dr. H. J. Sloan Genetics and Physiology—Dr. A. J. G. Maw Extension—Prof. H. H. Alp Poultry Science Awards: Teaching and Extension Prize—Dr. R. Penquite Research Prize—Dr. L. E. Card Borden Award—Dr. L. E. Card Fellows: Send nominations to Secretary—W. A. Maw
Downloaded from http://ps.oxfordjournals.org/ by guest on June 4, 2015
used. This may be explained on the basis of multiple factors. 2. The eggs from the Fi pullets as well as those from Rhode Island Red pullets exhibit a distinct seasonal or periodical variation of color intensity. The intensity of pigmentation decreases from the time laying starts in the fall until early summer when there is a slight increase until the end of the year. 3. Evidence is presented which indicates that one or more pairs of sex-linked genes operate in the inheritance of egg shell color. 4. If sex-linked genes are involved in the inheritance of egg shell color this would explain the greater influence of the male than of the female on the egg shell color of the Fi progeny as observed in this study and the observations made by other investigators.
265
REFERENCES
Benjamin, E. W., 1920. A study of selections for the
size, shape and color of hens' eggs. N.Y. (Cornell) Agr. Exp. Sta. Mem. 31. Bruckner, J. H., and F. B. Hutt, 1939. Linkage of Pea comb and blue egg in the fowl. Sci. 90:88. Hays, F. A., 1937. Inheritance of egg size and egg character. Mass. Agr. Exp. Sta. Bui. 344. Hurst, C. C , 1905. Experiments with poultry. Reports to the Evol. Comm. Roy. Soc, Rpt. II, p. 131. ,1921. The genetics of egg production in White Leghorns and White Wyandottes, and its application to poultry breeding. Trans. 1st World's Poul. Congress, p. 3. Klose, A: A., and H. J. Almquist, 1937. The pigment of egg shell membranes. Poultry Sci. 16:173-174. Koped, Stefan, 1926. An experimental study of xenia in the domestic fowl. Jour. Gen. 16:269286. - , 1927. Beitrage zur Kenntnis des Mechanismus der physiologischen Shalenfarbenvariabilitat der Huhnereier. Archiv. f. Geflug., Jahr. I, Heft. 9. Punnett, R. C , and P. G. Bailey, 1920. Genetic studies in poultry. II. Inheritance of egg-colour and broodiness. Jour. Gen., 10:277-292. Punnett, R. C , 1933. Genetic studies in poultry. DC. The blue egg. Jour. Gen., 27:465-470. Ridgway, Robert, 1912. Color standards and color nomenclature.
Annual Meeting Stevens Hotel—Chicago, 111. July 24-25 Reserve rooms direct with hotel. Banquet— Monday evening July 24. Program— Chairmen: General—Dr. D. C. Warren Nutrition—Dr. H. J. Sloan Genetics and Physiology—Dr. A. J. G. Maw Extension—Prof. H. H. Alp Poultry Science Awards: Teaching and Extension Prize—Dr. R. Penquite Research Prize—Dr. L. E. Card Borden Award—Dr. L. E. Card Fellows: Send nominations to Secretary—W. A. Maw
Downloaded from http://ps.oxfordjournals.org/ by guest on June 4, 2015
used. This may be explained on the basis of multiple factors. 2. The eggs from the Fi pullets as well as those from Rhode Island Red pullets exhibit a distinct seasonal or periodical variation of color intensity. The intensity of pigmentation decreases from the time laying starts in the fall until early summer when there is a slight increase until the end of the year. 3. Evidence is presented which indicates that one or more pairs of sex-linked genes operate in the inheritance of egg shell color. 4. If sex-linked genes are involved in the inheritance of egg shell color this would explain the greater influence of the male than of the female on the egg shell color of the Fi progeny as observed in this study and the observations made by other investigators.
265