HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Webel, S. K. Articles by Dziuk, P. J. Search for Related Content PubMed PubMed Citation Articles by Webel, S. K. Articles by Dziuk, P. J.

Effect of Stage of Gestation and Uterine Space on Prenatal Survival in the Pig¹

University of Illinois at Urbana-Champaign, Urbana 61801

Abstract

The influence of uterine space on prenatal survival was examined in 251 gilts at three stages of gestation: days 25 to 30, days 31 to 40 and days 41 to term. Uterine space was varied so that either twice normal, half normal or the normal amount of uterine space was available per embryo. When the uterus was unchanged but the number of embryos entering the uterus was reduced the proportion of embryos surviving at any stage of gestation was not different from normal. Decreasing the uterine space to half that of normal did not affect embryo survival to day 30 but the proportion of embryos surviving after day 30 was reduced. These results demonstrate that uterine space is not associated with the embryonic mortality normally observed before day 30 but after day 30 it may be a factor in fetal death when large numbers of fetuses are present or when uterine space is restricted.

¹ This study was supported in part by a grant from the Illinois Pork Producers Association.

² Present address: Abbott Laboratories, North Chicago IL 60064.

This article has been cited by other articles:

				A. Rosendo, T. Druet, J. Gogue, and J. P. Bidanel Direct responses to six generations of selection for ovulation rate or prenatal survival in Large White pigs J Anim Sci, February 1, 2007; 85(2): 356 - 364. [Abstract] [Full Text] [PDF]

				K. A. Vonnahme and S. P. Ford Placental vascular endothelial growth factor receptor system mRNA expression in pigs selected for placental efficiency J. Physiol., January 1, 2004; 554(1): 194 - 201. [Abstract] [Full Text] [PDF]

				M. J. Argente, M. A. Santacreu, A. Climent, and A. Blasco Relationships between uterine and fetal traits in rabbits selected on uterine capacity J Anim Sci, May 1, 2003; 81(5): 1265 - 1273. [Abstract] [Full Text] [PDF]