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Journal of Dairy Science Vol. 35 No. 10 801-807
© 1952 by American Dairy Science Association ®
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Semen Production, Fructose Content of Semen and Fertility of Dairy Bulls as Related to Sexual Excitement1

Cecil Branton, Gerald D'Arensbourg and J. E. Johnston

Dairy Department, Louisiana State University, Baton Rouge

ABSTRACT

Three levels of sexual excitement, namely unrestraint, one false mount and two false mounts prior to the first ejaculate, were related to semen production, semen characteristics, fructose concentration and fertility of the semen of mature dairy bulls in two 18-wk. experiments. It was found that all of these criteria of responses except fertility can be influenced markedly by controlled sexual excitement. There appears to be an inverse relationship between fructose concentration and spermatozoan density of semen. The results indicate that one false mount can be recommended for routine practice by bull studs.

FOOTNOTES

1 Published with the approval of the Director of Louisiana Agricultural Experiment Station as a Journal Article on Project No. 671.






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Copyright © 1952 by the American Dairy Science Association ®.