Identifier: cu31924101523425 (find matches)
Title: A study of selections for the variation and inheritance of the size, shape and color of hens' eggs
Year: 1920 (1920s)
Authors: Benjamin, Earl W. (Earl Whitney), b. 1889
Subjects: Poultry Eggs Variation (Biology) Heredity
Publisher: Ithaca, N.Y.
Contributing Library: Cornell University Library
Digitizing Sponsor: MSN

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^; Month iBt 2d 3d 4th 5th 6th 7th 8th 9th 10th llth Pig. 30. monthly variation in size of eggs produced during a period of six YEARS The figures in parenthesis designate the number of birds available for the respective calculations The curve representing the birds having a life mean of 45 or less does not lie entirely within that range because the whole six-years data on which the life mean is based is not available in monthly means for this chart (1914 a) and-Hadley (1919) to the effect that the conditions causing theproduction of a great many eggs will also cause the production of large.eggs. In order to see whether the results shown in figures 28, 29, and 30were due to the selection of high-producing birds from the low producers,as suggested above, figure 31 was constructed for five individuals which 258 Eael W. Benjamin began laying in December and continued laying for about the same periodas the others (until August). No material difference can be observedbetween the types of cu

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