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Characteristics of Ram Semen as Influenced by the Method of Collection

Idaho Experiment Station

Abstract

Conclusions: Investigations in the field of artificial insemination have included a study of the characteristics of ram semen as influenced by the method of collection. The methods of collection studied were: 1. From the vagina of the ewe; 2. With the artificial vagina, and 3. By electrical stimulation of the ejaculate. An analysis of the characteristics studied indicate that the artificial vagina generally serves as the most useful method of collecting semen from rams and that collection from the vagina of the ewe is generally the least satisfactory. The electrical stimulation method has a very definite use, especially where one is collecting semen from several rams in succession, or collecting semen from rams that will not or can not serve a ewe or dummy. In general these results are in excellent agreement with the more limited data of Terrill (3).