Japanese Journal of Veterinary Research;Volume 30, Number 1-2

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CHROMOSOMAL ANALYSIS AND BLOOD TYPE EXAMINATION OF MULTIPLE BIRTHS IN EQUINE

MIYAKE, Yoh-Ichi;INOUE, Tadahiro;KANAGAWA, Hiroshi;ISHIKAWA, Tsune;MOGI, Kazushige

Permalink : http://hdl.handle.net/2115/2244
JaLCDOI : 10.14943/jjvr.30.1-2.11

Abstract

A total of 5 dams and 16 cases of multiple births, that is, one set of male twins, one set of female twins, a partner of female twins, 4 sets of heterosexual twins and 3 cases of a male partner of heterosexual twins were examined cytogenetically and blood typically. The sexual appearances of all of the foals coincided with their sex-chromosomal constitution, and even in the heterosexual twins, there were no sex-chromosomal chimerisms found. Blood type examination revealed that out of all the cases of multiple births, only one male partner of a set of heterosexual twins showed chimerism.

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