[Chromosome studies of 300 young Dutch-Friesian and Holstein-Friesian bulls intended for use in artificial insemination]. / Chromosoomonderzoek aan 300 jonge Fries-Hollandse en Holstein-Friesian stieren bestemd voor KI-gebruik.
Tijdschr Diergeneeskd
; 112(13): 789-94, 1987 Jul 01.
Article
em Nl
| MEDLINE
| ID: mdl-3617022
ABSTRACT
Three hundred young Dutch Friesian and Holstein-Friesian bulls, kept in the Central Opfokstation (Central Breeding Station) in Terwispel (Friesland), were studied cytogenetically, using conventional staining methods. Structural chromosome aberrations were not observed. Four animals showed XX/XY-chimerism in the lymphocytes, probably caused by the interchange of haemopoietic cells between the male and its female co-twin by placental vascular anastomosis. The number of (iso)chromatid gaps in 25 metaphase plates varied from 0 to 4. Chromosome breaks were not observed. The chimeric bulls and those with (iso)chromatid gaps were not found to show significantly reduced fertility rates.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Bovinos
/
Inseminação Artificial
/
Cromossomos
Limite:
Animals
Idioma:
Nl
Revista:
Tijdschr Diergeneeskd
Ano de publicação:
1987
Tipo de documento:
Article