J. Anim Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J. Anim Sci. 1973. 37:734-738.
© 1973 American Society of Animal Science
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 Similar articles in PubMed
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 Moore, C. P.
Right arrow Articles by Cromwell, G. L.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Moore, C. P.
Right arrow Articles by Cromwell, G. L.

Influence of One-Day or Conventional Flushing on Ovulation Rate and Litter Size at 28 Days Gestation in Gilts1, 2,

C. Pat Moore3, R. H. Dutt, V. W. Hays and G. L. Cromwell

University of Kentucky, Lexington 40506

Abstract

A total of 146 gilts were randomly assigned at estrus to one of the following flushing treatments: (1) control—2.27 kg of feed daily; (2) 1-day flush—2.27 kg of feed daily, except for a 24-hr. period of ad libitum feed intake during mating estrus; and (3) 14-day flush—2.27 kg of feed daily except for a 2-week period of ad libitum feed intake starting on day 7 of the estrous cycle.

Average ovulation rate in the 14-day flush group (15.7 ova) was significantly (P<.01) greater than that of gilts flushed for 1 day (14,2 ova) or in controls (13.8 ova). Gilts flushed for 1 day ovulated an average of 0.4 ova more per gilt than controls, but this difference was not significant (P<.05). Season did not significantly affect ovulation rate (spring, 14.5 vs. summer, 14.6). The left ovary ovulated more ova (P<.10) than the right (7.5 vs. 7.0).

Gilts flushed for 14 days had significantly (P<.01) more live embryos per litter (13.0) than the 1-day flush group (11.3) or control gilts (10.9).

Footnotes

1 Published with approval of the Director of the Kentucky Agricultural Experiment Station as Journal Article 72–5–79.

2 The assistance of D. Dal Kratzer in the statistical analyses of the data is gratefully acknowledged.

3 Present address: International Center for Tropical Agriculture, Apartado Aereo 67-13 Cali, Columbia.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1973 by the American Society of Animal Science.