J. Anim Sci.
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J. Anim Sci. 1967. 26:790-791.
© 1967 American Society of Animal Science
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Intrauterine Migration following Unilateral Fertilization in Gilts1

A. B. Waite2 and B. N. Day

Missouri Agricultural Experiment Station, Columbia3

Abstract

Fifty-nine percent of 34 gilts inseminated unilaterally into the anterior portion of the uterine horn were pregnant when slaughtered on the 7th to 25th day of pregnancy. The study was to determine the time and mechanism of intrauterine migration of embryos. Migration of embryos to the occluded horn was first observed on the 11th day of pregnancy. Evidence of embryo migration was found in eight of nine gilts examined at later stages of pregnancy.

Footnotes

1 Contribution from Missouri Agricultural Experiment Station Journal Series No. 5016. Approved by the Director.

2 Present address: Agriculture Department, Central Missouri State College, Warrensburg, Missouri.

3 Department of Animal Husbandry.






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Copyright © 1967 by the American Society of Animal Science.