Biol Reprod Track the topics, authors and articles important to you
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

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 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 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 LAGUË, P. C.
Right arrow Articles by CUNNINGHAM, F. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by LAGUË, P. C.
Right arrow Articles by CUNNINGHAM, F. J.
Agricola
Right arrow Articles by LAGUË, P. C.
Right arrow Articles by CUNNINGHAM, F. J.

Biology of Reproduction, Vol 12, 590-598, Copyright © 1975 by Society for the Study of Reproduction

Concentrations of Estrogens, Progesterone and LH During the Ovulatory Cycle of the Laying Chicken [Gallus domesticus]

P. C. LAGUË 1, A. VAN TIENHOVEN 1, , and F. J. CUNNINGHAM 1

1 Department of Poultry Science, Cornell University, Ithaca, N.Y. 14853 and Department of Physiology and Biochemistry, The University, Whiteknights, Reading RG62AJ, England


The concentrations of estradiol, estrone, progesterone and LH are reported for blood samples taken at different intervals during the ovulatory cycle of the domestic fowl. In general there appears to exist a consistent relationship between peaks of estradiol and estrone concentrations, on the one hand, and the progesterone peaks, on the other hand.

These peaks of estrogen end progesterone precede ovulation by 4-7 hours. Ovulation does, however, occur occasionally in the absence of estrogen peaks and some estrogen peaks appear not to be related to ovulation.

In samples taken at 20-min intervals at about the time of the expected progesterone peak it was found that the progesterone concentrations varied in a pulsatile fashion whereas estrogen and LH concentrations did not, but showed a smooth peak.

Experiments with different doses of estradiol 17beta and progesterone failed to show either an inhibitory or facilitory effect of estradiol on spontaneous or progesterone-induced ovulation.

 Accepted on February 11, 1975




This article has been cited by other articles:


Home page
 Poult. Sci.Home page
C. Senthilkumaran, S. Peterson, M. Taylor, and G. Bedecarrats
Use of a vascular access port for the measurement of pulsatile luteinizing hormone in old broiler breeders.
Poult. Sci., September 1, 2006; 85(9): 1632 - 1640.
[Abstract] [Full Text] [PDF]

Home page
 ScienceHome page
H. Tucker and R. Ringer
Controlled photoperiodic environments for food animals
Science, June 25, 1982; 216(4553): 1381 - 1386.
[PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1975 by the Society for the Study of Reproduction.