JDS
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Journal of Dairy Science Vol. 29 No. 3 141-143
© 1946 by American Dairy Science Association ®
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Branton, C.
Right arrow Articles by Salisbury, G. W.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Branton, C.
Right arrow Articles by Salisbury, G. W.

The Estimation of the Weight of Bulls from Heart Girth Measurements

Cecil Branton and G. W. Salisbury

Department of Animal Husbandry, Cornell University, Ithaca, New York

ABSTRACT

A study was made of the relationship between heart girth measurement and the body weight of 25 Holstein and 25 Guernsey bulls ranging in weight from 852 to 2351 pounds.

The coefficients of correlation between heart girth measurement and body weight were 0.976 for all of the 50 bulls, 0.954 for the Holstein bulls, and 0.958 for the Guernsey bulls; all were highly significant statistically.

A calculation of the regression of body weight on heart girth measurements indicated a straight line relationship. The error of estimate of body weight based on heart girth measurement was 83.8 pounds or 5.05 per cent. Estimates of the body weights of bulls were, therefore, very accurate.

It was also of interest to note that the correlation coefficient between body weight and semen volume was 0.2079, which was not mathematically significant.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1946 by the American Dairy Science Association ®.