Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-30T17:53:16.416Z Has data issue: false hasContentIssue false

Culture and fertilization of sheep ovarian oocytes:II. Timing of nuclear maturation in oocytes cultured in growth medium

Published online by Cambridge University Press:  27 March 2009

T. F. Crosby
Affiliation:
Faculty of Agriculture, University College, Dublin
I. Gordon
Affiliation:
Faculty of Agriculture, University College, Dublin

Summary

In 450 oocytes, recovered from the vesicular follicles of prepuberal lambs and cultured in growth medium for 2–48 h, 76·4% resumed meiosis. The first evidence of polar body extrusion was at 18 h; maturation was completed in most oocytes by 25–27 h.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1971

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Berry, R. O. & Savery, H. P. (1958). A cytological study of the maturation process of the ovum of the ewe during normal and induced ovulation. Rep. & Fertil. III Symposium, pp. 7582.Google Scholar
Dziuk, P. J. (1965). Timing of maturation and fertilization of the sheep egg. Anat. Rec. 153, 211–23.CrossRefGoogle ScholarPubMed
Quirke, J. F. & Gordon, I. (1971). Culture and fertilization of sheep ovarian oocytes. I. Effect of culture medium on resumption of meiosis. J. agric. Sci., Camb. 76, 369–72.CrossRefGoogle Scholar