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Journal of Dairy Science Vol. 41 No. 9 1273-1277
© 1958 by American Dairy Science Association ®
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Distribution of Bulk and Trace Minerals in Bull Reproductive Tract Fluids and Semen

R. G. Cragle1 and G. W. Salisbury

Department of Dairy Science

J. H. Muntz2

Department of Agronomy, University of Illinois, Urbana

ABSTRACT

Semen and seminal plasma and fluids from the testes, ampullae, and seminal vesicles have been analyzed for the concentrations of certain bulk and trace elements. Chloride concentrations also were determined for semen and seminal plasma of pooled ejaculates. The average values in milligrams per cent for semen and seminal plasma in the pooled samples of several consecutive ejaculates from individual bulls were, respectively: boron, 1.74, 1.73; phosphorus, 70, 40; magnesium, 9.8, 9.8; calcium, 22, 25; sodium, 227, 242; potassium, 173, 172, and chloride, 287, 330. The average of ten values in milligrams for semen and seminal plasma, respectively, of first ejaculates were: boron, 1.02, 1.48; phosphorus, 105, 55; magnesium, 12.1, 11.6; iron, .61, .35; calcium, 47, 51, and sodium, 263, 273.

Iron is mainly a constituent of spermatozoa throughout the bull reproductive tract and in whole semen. Phosphorus is found in concentrations of less than 10 mg. % in seminal vesicle fluids and in 35 to 45 mg. % higher concentration in seminal plasma. Zinc and manganese were found in concentrations of less than 0.2 and 0.04 mg. % respectively, in all samples analyzed.

FOOTNOTES

1 Present address: UT-AEC Agricultural Research Laboratory, P. O. Box 142, Oak Ridge, Tennessee.

2 Present address: State Department of Agriculture, New Mexico A and M College, State College, New Mexico.






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Copyright © 1958 by the American Dairy Science Association ®.