Cytologic and ultrastructural evidence of spermatid selection in a 1/29, 14/20 centric fusion bull

A crossbred bull heterozygous for a double centric fusion was produced. At 14 months of age, semen volume and sperm characteristics were normal. Cytologic and ultrastructural evidence of spermatid degeneration was found coincident with abundant, apparently normal, sperm formation. Implications for t...

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Veröffentlicht in:	Canadian veterinary journal 2007-12, Vol.48 (12), p.1255-1255
Hauptverfasser:	Weber, A.F, Waddell, J, Fahning, M.L, Buoen, L.C, Seguin, B.E
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals bulls Cattle - genetics Cattle - physiology cell biology centric fusion positive bulls crossbreds Crosses, Genetic genetic disorders heterozygosity histology Male male fertility Scientific semen Semen - cytology Simmental Sperm Count - veterinary spermatids Spermatogenesis - physiology spermatozoa Spermatozoa - physiology Spermatozoa - ultrastructure ultrastructure
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Beschreibung
Zusammenfassung:	A crossbred bull heterozygous for a double centric fusion was produced. At 14 months of age, semen volume and sperm characteristics were normal. Cytologic and ultrastructural evidence of spermatid degeneration was found coincident with abundant, apparently normal, sperm formation. Implications for the early detection of centric fusion in young bulls are discussed.
ISSN:	0008-5286