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- W2012254359 abstract "Abstract Landauer (1948) has summarized published data on the relation between fertility and hatchability. These reports show very little evidence of any correlation in Rhode Island Reds although a significant correlation has been reported in Plymouth Rocks by several investigators and by two workers with White Leghorns. It is not entirely clear why any breed difference should exist. An examination of this question was undertaken using the 848 Rhode Island Red dams used for breeding from 1945 to 1949. The simple correlation was calculated between fertility and hatchability and gave the following results. This is a significant correlation since at the 1 percent level r should equal at least .10. This correlation stands in contrast to the insignificant value of .067±.024 reported 25 years ago by Hays and Sanborn (1924). What is the possible explanation? In this earlier flock the mean fertility was only 69 percent and the mean hatchability was . . ." @default.
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- W2012254359 date "1951-01-01" @default.
- W2012254359 modified "2023-09-26" @default.
- W2012254359 title "Fertility and Hatchability in Rhode Island Reds" @default.
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- W2012254359 doi "https://doi.org/10.3382/ps.0300153" @default.
- W2012254359 hasPublicationYear "1951" @default.
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