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


     

Journal of Dairy Science Vol. 75 No. 10 2713-2718
© 1992 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 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 Kristula, M.
Right arrow Articles by Uhlinger, C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Kristula, M.
Right arrow Articles by Uhlinger, C.

Effects of a Prostaglandin F2alpha Synchronization Program in Lactating Dairy Cattle

Michaela Kristula 1, Richard Bartholomew 1, David Galligan 1, and Chris Uhlinger 2

1 Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Kennett Square 19348
2 Food Animal and Equine Medicine, North Carolina State University, College of Veterinary Medicine, Raleigh 27606

A comparison was made between two different methods of reproductive management in the dairy cow. One protocol administered prostaglandin to open cows weekly; the other administered prostaglandin to open cows with a corpus luteum identified by rectal palpation. Survival analysis was used to analyze the data. Cows receiving weekly doses of prostaglandin had a 30% higher pregnancy rate (number of pregnancies per time) than the cows receiving prostaglandin based on rectal palpation of a corpus luteum. The average number of days to first insemination was shorter in cows given prostaglandin weekly.

Key Words: dairy cattle • reproduction • synchronization • prostaglandin

Submitted on October 23, 1991
Accepted on May 12, 1992






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1992 by the American Dairy Science Association ®.