Cases of XY female, single-birth freemartin and trisomy (61, XX, +20) observed in cytogenetical studies on 18 sterile heifers.
A total of 18 sterile heifers, their mother cows, their half-sib cows and a bull which may or may not be a full-sib were cytogenetically investigated. Three cases out of the 18 sterile heifers showed different types of chromosomal abnormalities respectively; 60, XY; 60, XX/60, XY; 61, XX, +20. The remainder showed normal karyotype.
Murakami
R
R
Miyake
Y
Y
Kaneda
Y
Y
D000818:Animals; D002417:Cattle / Q000235:genetics; D002418:Cattle Diseases / Q000235:genetics*; D005260:Female; D005611:Freemartinism; D007247:Infertility, Female / Q000235:genetics / Q000662:veterinary*; D007621:Karyotyping; D012729:Sex Chromosome Aberrations / Q000235:genetics / Q000662:veterinary*; D014314:Trisomy; D014960:X Chromosome