Biol Reprod Email Content Delivery
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
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 My Folders
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Filley, S.J.
Right arrow Articles by Stormshak, F.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Filley, S.J.
Right arrow Articles by Stormshak, F.
Agricola
Right arrow Articles by Filley, S.J.
Right arrow Articles by Stormshak, F.
Biology of Reproduction 61, 1317-1323 (1999)
© 1999 Society for the Study of Reproduction, Inc.

Articles

Prostaglandin F2{alpha} Concentrations, Fatty Acid Profiles, and Fertility in Lipid-Infused Postpartum Beef Heifers1

S.J. Filleya, H.A. Turnerb, and F. Stormshak2,a

a Department of Animal Sciences, Eastern Oregon Agricultural Research Center, b Oregon State University, Corvallis, Oregon 97331

Effects of lipid infusion into postpartum (PP) beef heifers on plasma concentrations of linoleic acid and prostaglandin (PG) F2{alpha} metabolite (PGFM), days to first estrus, and subsequent pregnancy rate were examined. Treatments (n = 5 per group) of 1 L intralipid (20% soybean oil; IL), 1 L 50% dextrose (DEXT; isocaloric to IL), 0.5 L intralipid (0.5 IL), and 1 L physiological saline (SAL) were infused i.v. over 4 h on each of Days 7 through 11 PP. Capacity of the uterus to produce PG was evaluated after i.v. injection of 150 IU of oxytocin (OT) to IL- and DEXT-treated heifers Day 12 PP. Change in plasma concentrations of PGFM from 0 to 4 h was greater for IL-treated heifers than for heifers given other treatments on Day 7 (P = 0.04) and on Day 11 (P = 0.01), but not on Day 9 (P > 0.10). Plasma linoleic acid on Day 11 and OT-induced release of PGFM on Day 12 were greater in IL-treated heifers compared with DEXT-treated heifers (P < 0.06 and P = 0.01, respectively). There were no significant differences among treatments for mean days to first estrus or pregnancy rate. Infusion of lipid increased systemic concentrations of linoleic acid and increased the capacity of PP heifers to produce uterine PGF2{alpha} as indicated by plasma PGFM concentration after OT injection.

1 Technical paper No. 11461, Oregon Agric. Exp. Sta.

2 Correspondence: F. Stormshak, 112 Withycombe Hall, Corvallis, OR 97331. FAX: 541 737 4174; fred.stormshak{at}orst.edu




This article has been cited by other articles:


Home page
 J ANIM SCIHome page
B. W. Hess, S. L. Lake, E. J. Scholljegerdes, T. R. Weston, V. Nayigihugu, J. D. C. Molle, and G. E. Moss
Nutritional controls of beef cow reproduction
J Anim Sci, June 1, 2005; 83(13_suppl): E90 - 106.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1999 by the Society for the Study of Reproduction.