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Volume 32, Number 1 >

FURTHER CHROMOSOMAL AND CLINICAL STUDIES ON THE XY/XYY MOSAIC BULL

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Please use this identifier to cite or link to this item:http://doi.org/10.14943/jjvr.32.1.9

Title: FURTHER CHROMOSOMAL AND CLINICAL STUDIES ON THE XY/XYY MOSAIC BULL
Authors: MIYAKE, Yoh-Ichi Browse this author
KANAGAWA, Hiroshi Browse this author
ISHIKAWA, Tsune Browse this author
Keywords: chromosome
XY
XYY mosaic
bull
cryptorchidism
Issue Date: 31-Jan-1984
Publisher: The Graduate School of Veterinary Medicine
Journal Title: Japanese Journal of Veterinary Research
Volume: 32
Issue: 1
Start Page: 9
End Page: 21
Abstract: Cytogenetical investigation of the blood (4 times), skin (2 times), spleen and kidney was performed on a bull with unilateral cryptorchidism. This abnormal bull had two cell lines, XY cell line and XYY cell line, in all tissues examined, but the ratio with XYY cell line in the blood and skin samples became significantly lower with aging. The father bull of this case, and the 9 half-sib males and 11 daughter cows sired by the bull were cytogenetically examined. Except for one half-sib male with sex chromosomal chimerism, which was a heterosexual twin male, there was no chromosomal abnormality detected. Semen collected from this case was extremely lower in quality than that of normal bulls. Despite of lower semen quality, this case showed a similar conception rate to normal bull in Japan. From the examination of the testes obtained at the time of slaughter, the descended right testis showed severe calcinosis, and its seminiferous tubes were filled with calcareous materials. The left testis was small and did not show any spermatogenesis.
Type: bulletin (article)
URI: http://hdl.handle.net/2115/2305
Appears in Collections:Japanese Journal of Veterinary Research > Volume 32, Number 1

Submitter: 獣医学部図書室

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