HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Terrill, C. E. Search for Related Content PubMed Articles by Terrill, C. E.

Comparison of Ram Semen Collection Obtained by Three Different Methods for Artificial Insemination

United States Department of Agriculture Western Sheep Breeding Laboratory, DuBois, Idaho

Abstract

In conducting experiments on artificial insemination it is often necessary to use more than one method of collecting semen. The methods used are; collection from the vagina of the ewe after ram service, collection with the artificial vagina, and the use of electrical stimulation. Many rams refuse to serve a ewe out of heat even after considerable training and nearly one-half the rams that have been tried refuse to serve the dummy ewe. After failure of these two methods electrical stimulation can be used.

With the necessity of using more than one method of collecting, it is important to know whether these affect the semen differently. It is the purpose of this study, therefore, to compare semen quality and results from artificial insemination using semen obtained by each of the three methods mentioned above.

Preliminary investigations were carried on during the season 1938–39 (1) and (2). Semen was collected from one three-year-old Rambouillet ram by each of three methods.