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Conception Rate in ewes: effect of method of breeding and number of inseminations

Published online by Cambridge University Press:  27 March 2009

P. A. Smith ,
M. P. Boland  and
I. Gordon
P. A. Smith
Affiliation:
Department of Agriculture, University College, Lyons Estate, Newcastle P.O., Co. Dublin, Eire
M. P. Boland
Affiliation:
Department of Agriculture, University College, Lyons Estate, Newcastle P.O., Co. Dublin, Eire
I. Gordon
Affiliation:
Department of Agriculture, University College, Lyons Estate, Newcastle P.O., Co. Dublin, Eire
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Extract

With the development of effective methods of oestrus synchronization (Gordon, 1975), it is now possible to breed ewes at most times of the year. Encouraging conception rates have been reported following insemination (Colas & Brice, 1970; Colas et al. 1973; Gordon, 1975). A major disadvantage with the technique is the need to inseminate ewes twice at 10–14 h intervals. Because of the anatomy of the ovine cervix, it is not possible to deposit semen in the uterus as in the bovine. The present experiment was designed to compare a single or double insemination with natural service. Two types of inseminating gun were employed in an effort to deposit semen deep in the cervical folds.

Type
Short Note
Information
The Journal of Agricultural Science , Volume 91 , Issue 2 , October 1978 , pp. 511 - 512
Copyright
Copyright © Cambridge University Press 1978

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References

REFERENCES

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