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Effect of sexual preparation procedures on semen characteristics in the ram

Published online by Cambridge University Press:  27 March 2009

P. E. McGrath ,
M. P. Boland  and
I. Gordon
P. E. McGrath
Affiliation:
Department of Agriculture, University College, Newcastle P.O., Co. Dublin, Eire
M. P. Boland
Affiliation:
Department of Agriculture, University College, Newcastle P.O., Co. Dublin, Eire
I. Gordon
Affiliation:
Department of Agriculture, University College, Newcastle P.O., Co. Dublin, Eire
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Extract

Quantitative information concerning preejaculation sexual preparation of bulls was published some years ago by Collins, Bratton & Henderson (1951), who concluded that about 40% more motile sperm could be obtained by imposing one false mount before ejaculation. It had been suggested that one false mount in bulls is essentially as efficient as two such attempts in terms of sperm output (Branton, D'Arensbourg & Johnston, 1952). More recently Hafs, Knisely & Desjardins (1962) have shown that bulls given a planned 5 min sexual preparation yielded 30% more sperm than those given no preparation. Similarly 10 min preparation resulted in a 12% increase in sperm output when compared with a 5 min preparation. These authors also showed that zero, one, two or three false mounts significantly affected motile sperm output.

Type
Short Note
Information
The Journal of Agricultural Science , Volume 93 , Issue 3 , December 1979 , pp. 761 - 763
Copyright
Copyright © Cambridge University Press 1979

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References

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