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 Google Scholar
Google Scholar
Right arrow Articles by Horne, C.
Right arrow Articles by Dziuk, P. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Horne, C.
Right arrow Articles by Dziuk, P. J.
Agricola
Right arrow Articles by Horne, C.
Right arrow Articles by Dziuk, P. J.

Biology of Reproduction, Vol 29, 56-62, Copyright © 1983 by Society for the Study of Reproduction

ARTICLES

Relationship between the level of estrone sulfate in the plasma and the number of fetuses during pregnancy in the gilt

C Horne, BP Chew, BS Wiseman and PJ Dziuk

Estrone sulfate was measured in the plasma of pregnant and nonpregnant gilts between Days 10 and 32 after estrus. Estrone sulfate was found to rise sharply in pregnant gilts beginning at Day 18 and to decline at Day 30 to Day 32. Estrone levels were not related to litter size. The level of estrone sulfate on Days 20, 22, 24 and 26 was significantly correlated with litter size at slaughter on Day 32. Reduction of the number of live fetuses by crushing them in utero at Day 40 or between Days 30 to 60 did not cause a subsequent reduction in the level of estrone sulfate, whereas reduction at Day 24 did cause a decline in estrone sulfate. The level of estrone sulfate in plasma of gilts at 20 to 28 days after mating was higher in pregnant than in nonpregnant gilts. The relative level of estrone sulfate would enable one to estimate litter size at Days 20 to 28 days but not later. Because of the limitations of the assay in exact quantitation of the levels of estrone sulfate, the results can only be considered qualitative.




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1983 by the Society for the Study of Reproduction.