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The Effect of Sodium Arsenite on the Respiration of Bovine Semen and the Relation of this Response to the Fertilizing Ability of Semen¹

Department of Dairy Husbandry, University of Nebraska, Lincoln

ABSTRACT

Treatment of bovine semen with a low concentration of buffered sodium arsenite (5 x 10^-10 M) increased the mean O₂ uptake of the semen studied. A high concentration (10^-5 M) slightly decreased the mean O₂ uptake and a still higher concentration (10^-3 M) decreased O₂ uptake when compared to O₂ uptake of untreated semen. The response of O₂ uptake to sodium arsenite varied greatly according to the individual semen sample.

When the individual semen sample response was related to the fertilizing capacity of the semen, a negative relationship was found. The degree of relationship was statistically significant but not close enough to be of practical value for accurate prediction of semen quality.

¹ Published with the approval of the Director as paper no. 565, Journal Series, Nebraska Agricultural Experiment Station, Lincoln.

² Present address: E. E. Squibb Labs., New Brunswick, N. J.