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US20030096319: Method of sorting birds

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Filing Information

Inventor(s) Patricia Phelps ·
Assignee(s) None listed in document.
Correspondent MYERS BIGEL SIBLEY & SAJOVEC ·
Application Number US10301245
Filing date 11/21/2002
PCT 371 date 10/03/1997
Publication date 05/22/2003
Predicted expiration date 03/23/2019
U.S. Classifications 435/7.2  · 119/300  ·
International Classifications A01K031/19  · G01N033/53  · G01N033/567  ·
Kind CodeA1
36 Claims, 1 Drawings


Abstract

A method of determining the gender of a bird in ovo comprises detecting the presence or absence of an elevated level of a sex-related hormone in the extra-embryonic fluid of the bird egg, and then determining the gender of the bird within the egg from the presence of an elevated level of a sex-related hormone therein. Preferably, the sex-related hormone is an estrogen. Further preferred are methods in which the extra-embryonic fluid is allantoic fluid. The method is preferably carried out on chicken eggs prior to or during transfer of the eggs from incubator to hatcher.

Independent Claims | See all claims (36)

  1. 1. A method of determining the gender of a bird in ovo, comprising the steps of: detecting the presence or absence of an elevated level of a sex-related hormone in the extra-embryonic fluid of a bird egg; and determining the gender of the bird within the egg from the presence of an elevated level of said sex-related hormone in said extra-embryonic fluid.
  2. 8. A method of sorting a plurality of bird eggs by the gender of the birds in ovo therein, comprising the steps of: detecting the presence or absence of an elevated level of a sex-related hormone in the extra-embryonic fluid of each of said eggs; and then separating said plurality of eggs into a first subset of eggs having elevated levels of said sex-related hormone and a second subset of eggs not having elevated levels of said sex-related hormone, so that said first subset of eggs contains birds of one sex and said second subset of eggs contains birds of the other sex.
  3. 19. A method of determining the gender of a bird in ovo, comprising the steps of: detecting the presence or absence of an elevated level of estrogen in the extra-embryonic fluid of a bird egg; and determining that the gender of the bird within the egg is a female from the presence of an elevated estrogen level in said extra-embryonic fluid.
  4. 26. A method of sorting a plurality of bird eggs by the gender of the birds in ovo therein, comprising the steps of: detecting the presence or absence of an elevated estrogen level in the extra-embryonic fluid of each of said eggs; and then separating said plurality of eggs into a first subset of eggs having elevated estrogen levels and a second subset of eggs not having elevated estrogen levels, so that said first subset of eggs contains female birds and said second subset of eggs contains male birds.

References Cited

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Patent Family

Document NumberAssigneeInventorsIssue/Pub Date
US6506570 Embrex, Inc. Patricia V. Phelps Jan 2003
US20030096319 Patricia Phelps May 2003
US6989238 Embrex, Inc. Patricia V. Phelps Jan 2006