Sex chromosome mosaicism (60, XX/61, XXX) in an infertile HF heifer

Abstract

A blood sample was collected from a 4-year old HF heifer because of repeat breeding problem, for cytogenetic investigation.
The female had normal external and internal genitals. Chromosome slides were prepared using short term lymphocyte culture. Sex
chromosomes mosaicism was ietected as 4% cells were found with abnormal number of sex chromosomes (61,XXX) ~cause of an
additional X chromosome, which could be possible reason for infertility in HF heifer.