Hostname: page-component-77c89778f8-gvh9x Total loading time: 0 Render date: 2024-07-20T02:30:37.826Z Has data issue: false hasContentIssue false
  • English
  • Français

Fertility of young Cashmere goats after laparoscopic insemination

Published online by Cambridge University Press:  27 March 2009

A. J. Ritar  and
P. D. Ball
A. J. Ritar
Affiliation:
Department of Primary Industry, PO Box 180, Kings Meadows, Tasmania 7249, Australia
P. D. Ball
Affiliation:
Department of Primary Industry, PO Box 180, Kings Meadows, Tasmania 7249, Australia
Get access Rights & Permissions [Opens in a new window]

Summary

Maiden 18-month-old Cashmere does (JV=254) were inseminated laparoscopically with frozenthawed semen after treatment with Controlled Internal Drug Release devices and pregnant mare's serum gonadotrophin (PMSG) in the breeding season of 1989 in Tasmania. Kidding rates(does kidded/inseminated) were not statistically different after the insemination of 1, 5 or 25 × 106 motile spermatozoa (50·0, 55·8 and 56·4%), andfor semen frozen by the pellet or straw methods (56·8 and 50·8%). The fertility results suggest that the critical threshold may not have been reached at 1 × 106 frozen-thawed motile spermatozoa.

Type
Animals
Information
The Journal of Agricultural Science , Volume 117 , Issue 2 , October 1991 , pp. 271 - 273
Copyright
Copyright © Cambridge University Press 1991

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

Chemineau, P. (1987). Possibilities for using bucks to stimulate ovarianand oestrous cycles in anovulatory goats-a review. Livestock Production Science 17, 135–147.Google Scholar
Evans, G. (1988). Current topics in artificial insemination of sheep. Australian Journal of Biological Science 41, 103–116.CrossRefGoogle ScholarPubMed
Hunton, J. R., Flecker, S. E. & Maxwell, W. M. C. (1987). Pregnancy rates following intra-uterine insemination with pellet or straw-frozen ram semen. Journal of Agricultural Science, Cambridge 109, 189–191.Google Scholar
Ritar, A. J. & Salamon, S. (1983). Fertility of fresh and frozen-thawed semen of the Angora goat. Australian Journal of Biological Sciences 36, 49–59.CrossRefGoogle Scholar
Ritar, A. J., Salamon, S., Ball, P. D. & O'may, P. J. (1989). Ovulation and fertility in goats after intravaginal device-PMSG treatment. Small Ruminant Research 2, 323–331.Google Scholar
Ritar, A. J., Ball, P. D. & O'May, P. J. (1990 a). Examination of methods for the deep freezing of goat semen. Reproduction, Fertility and Development 2, 27–34.CrossRefGoogle ScholarPubMed
Ritar, A. J., Ball, P. D. & O'may, P. J. (1990 b). Artificial insemination of Cashmere goats: effects on fertility and fecundity of intravaginal treatment, method and time of insemination, semen freezing process, number of motile spermatozoa and age of females. Reproduction, Fertility and Development 2, 377–384.Google Scholar