Extension, Cooperative

 

Authors

H. E. Alder

Date of this Version

6-1938

Document Type

Article

Citation

Alder, H. E. (1938). Determining the sex of day-old chicks (University of Nebraska Agricultural Experiment Station Circular No. 51 reprint)

Comments

ISSN 0099-5460 (print)

ISSN 2690-8034 (online)

Abstract

More than 2,000 years ago people were interested in determining the sex of the embryo in hatching eggs and the sex of day-old chicks. No method of determining the sex of day-old chicks (except of course in sex-linked chicks) was of the slightest value until the Japanese method was discovered and developed. About 1925 Japanese scientists discovered the presence of a rudimentary copulatory organ located on the ventral rim of the cloaca which was present in all day-old males and only a few day-old females.

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