Japanese Journal of Veterinary Research;Volume 21, Number 3

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CYTOGENETICAL STUDIES ON SWINE INTERSEXES

MIYAKE, Yoh-Ichi

Permalink : http://hdl.handle.net/2115/2016
JaLCDOI : 10.14943/jjvr.21.3.41

Abstract

Eight cases of swine intersexes, about 6 months old, were investigated cytogenetically and morphologically. Three normal females and 3 males of similar ages were used as controls. The intersexes examined were classified into 5 types by gonadal morphology. Chromosome karyotype of cultured leucocytes from the intersexes revealed a 38,XX constitution, the same as the normal female pattern in the swine, regardless of the degree of gonadal deviation. No sex-chromosome chimerism was observed. A higher incidence of drumsticks in neutrophilic nuclei was indicated in the intersexes as well as normal females. These suggest that the present intersexes are genetically female.

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