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Factors modifying egg production with special reference to seasonal changes

Published online by Cambridge University Press:  27 March 2009

Elizabeth O. Whetham
Elizabeth O. Whetham
Affiliation:
(Institute of Animal Nutrition, School of Agriculture, Cambridge.)
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Summary

1. Sexual periodicity in many animals is largely conditioned by variations in the daily light period. That egg production in hens may be controlled by the use of artificial lights has long been known.

2. The action of light is probably connected with the activity of the anterior lobe of the pituitary.

3. The natural variation in daily light period at different latitudes has been used to study the effect of light on egg production throughout the world. Curves have been constructed of egg production grouped in 5° of latitude and the correlation with the hours of daylight at those latitudes studied.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 23 , Issue 3 , July 1933 , pp. 383 - 418
Copyright
Copyright © Cambridge University Press 1933

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References

REFERENCES

(1), Asmundson. Third World's Poultry Congress (1927), p. 129.Google Scholar
(2), Baker and , Ranson. Proc. Roy. Soc. B (1932), 110, 313.Google Scholar
(3), Beebe. Amer. Nat. (1908), 42, 34.CrossRefGoogle Scholar
(4), Benoit and , Aron. Compt. rend. Soc. Biol. (1931), 108, 786.Google Scholar
(5), Bissonette. Physiol. Zool. (1931), 4, 542.CrossRefGoogle Scholar
(6), BissonetteJ. Exp. Zool. (1931), 58, 291.Google Scholar
(7), BissonettePhysiol. Zool. (1932), 5, 92.CrossRefGoogle Scholar
(8), BissonetteProc. Roy. Soc. B (1932), 110, 322.Google Scholar
(9), BissonetteNature (1932), 129, 612.Google Scholar
(10), Bissonette and , Wadlund. J. Exp. Biol. (1932), 9, 339.CrossRefGoogle Scholar
(11), Brody. J. Gen. Physiol. (1921), 3, 431.CrossRefGoogle Scholar
(12), Ceni. First Internat. Congress for Sex Research, Berlin (1928), p. 81.CrossRefGoogle Scholar
(13), Collip, , Selye and , Thomson. Nature (1933), 131, 56.Google Scholar
(14), Dunn. Storrs Agric. Exp. Sta. Bull. (1927), No. 147.Google Scholar
(15), Fairbanks and , Rice. Cornell Extension Bull. (1924), No. 90. Revised 1931.Google Scholar
(16), Fronda. Phillipine Agriculturist (1928), 17, 25.Google Scholar
(17), GoodaleJ. Agric. Res. (1918), 12, 547.Google Scholar
(18), GoodaleAmer. Nat. (1918), 41, 65, 209 and 301.Google Scholar
(19), GoodalePoultry Science (1923), 3, 173.Google Scholar
(20), Goodale and , Sanborn. Mass. Agric. Exp. Sta. Bull. (1922), No. 211.Google Scholar
(21), Gutowska. Quart. J. Exp. Physiol. (1931), 21, No. 3, p. 197.CrossRefGoogle Scholar
(22), HammondZüchtungstunde (1928), 3, 523.Google Scholar
(23), HammondReport on Agric. Meterolog. Conference (1930).Google Scholar
(24)Reproduction in the Rabbit (1925). Edinburgh.Google Scholar
(25), HanssonFourth World's Poultry Congress (1930), Paper No. 45.Google Scholar
(26), Harris and , LewisGenetics (1932), 8, 37.Google Scholar
(27), HaysMass. Agric. Exp. Sta. Bull. (1932), No. 289.Google Scholar
(28), Hays and , SanbornMass. Agric. Exp. Sta. Bull. (1926), No. 7.Google Scholar
(29), Hays and , SanbornMass. Agric. Exp. Sta. Bull. (1926), No. 8.Google Scholar
(30), HeapeProc. Roy. Soc. B (1905), 76, 260.Google Scholar
(31), Hofman-Bang and , Holm 146. Ber.f. Forsoglab. Copenhagen (1932).Google Scholar
(32), Hogben Private communication (1933).Google Scholar
(33), Hogben, , Charles and , SlomeJ. Exp. Biol. (1931), 8, 345.CrossRefGoogle Scholar
(34), KemsterThird World's Poultry Congress (1927), p. 143.Google Scholar
(35), Kennard and , ChamberlainOhio Agric. Sta. Bull. (1931), No. 476.Google Scholar
(36), MarshallPhysiology of Reproduction (1922). London.Google Scholar
(37), MarshallNature (1932), 129, 344.Google Scholar
(38), MitchellPhysiol. Zool. (1929), 2, 411.CrossRefGoogle Scholar
(39), Moore and , PriceAmer. J. Anat. (1932), 50, 13.CrossRefGoogle Scholar
(40), Pearl and , SurfaceU.S. Dept. Agric. Bur. Anim. Indus. Bull. (1911), No. 110.Google Scholar
(41), PearlJ. Exp. Zool. (1912), 13, 153.CrossRefGoogle Scholar
(42), Prentice, , Baskett and , RobertsonFourth World's Poultry Congress (1930), Paper No. 37.Google Scholar
(43)Van Der, Plank.Züchtungskunde (1929), 4, 152.Google Scholar
(44), Rhys and , ParkhurstNat. Inst. Poultry Husbandry, Harper Adams(1931), Bull. No. 6.Google Scholar
(45), RiddleAmer. J. Physiol. (1925), 73, 5.CrossRefGoogle Scholar
(46), RiddleAmer. J. Physiol. (1931), 97, 581.CrossRefGoogle Scholar
(47), RiddleAmer. J. Physiol. (1931), 98, 121.CrossRefGoogle Scholar
(48), Riddle and , FlemionAmer. J. Physiol. (1928), 87, 110.CrossRefGoogle Scholar
(49), RowanNature (1925), 115, 494.Google Scholar
(50), RowanNature (1927), 119, 351.Google Scholar
(51), RowanProc. Boston. Soc. Nat. Hist. (1929), 39, 151.Google Scholar
(52), RowanProc. Nat. Acad. Sci. Washington (1930), 16, 520.CrossRefGoogle Scholar
(53), SmithAmer. J. Physiol. (1927), 80, 114.CrossRefGoogle Scholar
(54), SmithScottish J. Agric. (1929), 12, 304.Google Scholar
(55), Smith and , EngleAmer. J. Anat. (1927), 40, 159.CrossRefGoogle Scholar