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 Rhode, C. S. Search for Related Content PubMed Articles by Rhode, C. S.

Appraising the Transmitting Ability of Sires Placed in Artificial Service as Young Bulls

Department of Dairy Science, University of Illinois, Urbana

ABSTRACT

The cooperative artificial breeding program in Illinois was started and functions for the purpose of improving the efficiency, production, type, and value of Illinois dairy cattle. Consequently, keeping an adequate number of bulls in service that have the ability to transmit the desired characteristics to their offspring is one of the most important problems in connection with this project.

The number of bulls adequately and favorably proven for production and type that are available for use in artificial breeding associations falls far short of supplying the demand. Some bulls proven satisfactory for production transmit undesirable type. Bulls proved on the basis of a few dam and daughter pairs in one herd may show up differently when final appraisal is made on a large number of artificially sired daughters. With this situation in mind, the practice of carefully selecting and making special matings to produce young sires to be sparingly used until proved on the basis of artificially sired daughters was started soon after the program got under way in Illinois in 1940.