Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Cyclopentanohydrophenanthrene ring system doai
Patent
1992-07-31
1995-01-03
Cintins, Marianne M.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Cyclopentanohydrophenanthrene ring system doai
119 68, A01K 6704, A61K 3156
Patent
active
053776186
ABSTRACT:
The present invention is a method for sex determination in ratites, such as ostriches. The method includes the steps of administering a material that causes sex to be determined to a fertilized ratite egg and incubating the egg until it hatches. Preferably, the administering step includes the step of injecting the material into the egg and preferably before the injecting step, there is the step of drilling a hole into the eggshell of the egg. The material that determines sex in ratites includes natural estrogens or a functionally equivalent amount of its synthetic mimics to cause female development and natural nonaromatizable androgens or a functionally equivalent amount of its synthetic mimics to cause male development. Preferably, the material is estradiol-17beta (for female development) or dihydrotestosterone (for male development). A solution may, for example, be comprised of 1.2 milligrams of estradiol-17beta preferably dissolved in 40 microliters of 95% ethanol, or 7.5 milligrams of dihydrotestosterone preferably dissolved in 100 microliters of 95% ethanol, respectively.
REFERENCES:
patent: 2734482 (1956-02-01), Seltzer
patent: 5158038 (1992-10-01), Sheeks et al.
patent: 5201280 (1993-04-01), Crews et al.
Crews David
Wibbels Thane
Cintins Marianne M.
Jordan Kimberly R.
Reproductive Sciences, Inc.
Schwartz Ansel M.
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