Campus Units

Animal Science

Document Type

Article

Publication Version

Published Version

Publication Date

1996

Journal or Book Title

Reproduction: The Journal of the Society for Reproduction and Fertility

Volume

106

First Page

107

Last Page

110

DOI

10.1530/jrf.0.1060107

Abstract

The effect of sex on pig conceptus development to day 12 of gestation was investigated. On day 2 of gestation, reciprocal embryo transfers were performed resulting in four groups (Yorkshire–Yorkshire, Yorkshire–Meishan, Meishan–Yorkshire and Meishan–Meishan). Conceptuses at day 12 were recovered from each recipient and diameter, as well as DNA, protein and oestradiol content were determined for individual conceptuses. The sex of individual conceptuses at day 12 was determined by amplification of a fragment of the pig SRY gene, using the polymerase chain reaction. Embryos developed more rapidly to day 12 in Yorkshire recipients, but there was no detectable effect of sex on the diameter, DNA, protein or oestradiol content of conceptuses from any transfer group. Thus, no sex effect was apparent under conditions either promoting or retarding the rate of early pig blastocyst growth. These results provide strong evidence that pig embryonic development occurs at a rate determined by uterine environment and not by sex of the conceptus.

Comments

This article is published as Kaminski, M. A., S. P. Ford, C. R. Youngs, and A. J. Conley. "Lack of effect of sex on pig embryonic development in vivo." Journal of reproduction and fertility 106, no. 1 (1996): 107-110. doi:10.1530/jrf.0.1060107. Posted with permission.

Copyright Owner

Journal of Reproduction and Fertility Ltd.

Language

en

File Format

application/pdf

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