Effects of time of progesterone supplementation on embryo development and interferon-tau production in the cow.

The Veterinary Journal
G E MannG E Lamming

Abstract

We have investigated the effects of the timing of progesterone supplementation on early embryo development in mature, non-lactating Holstein-Friesian cows. Animals were inseminated 72 h (day 1) and 96 h following prostaglandin injection and were either left as untreated controls (n=6) or received progesterone supplementation from either days 5 to 9 (early; n=6) or from days 12 to 16 (late; n=6). Daily plasma samples were collected until day 16, when cows were slaughtered and reproductive tracts recovered and flushed to collect embryos and to measure interferon-tau activity. Both early and later progesterone supplementation resulted in marked increases in plasma progesterone (P<0.01). Early, but not late, progesterone supplementation resulted in a fourfold increase in trophoblast length (P<0.01) and a sixfold increase in uterine concentration of interferon-tau (P<0.05). The results demonstrate that progesterone supplementation during the postovulatory rise, but not later in the luteal phase, increases embryo development and interferon-tau production.

References

Jan 11, 1992·Reproduction, Fertility, and Development·R D GeisertM T Zavy
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Feb 28, 2001·Reproduction : the Official Journal of the Society for the Study of Fertility·G E Mann, G E Lamming
Feb 28, 2001·Journal of Immunological Methods·M D FrayB Charleston

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Citations

Nov 11, 2008·Reproduction : the Official Journal of the Society for the Study of Fertility·Flavia N T CookeAlan D Ealy
Apr 21, 2010·Reproduction : the Official Journal of the Society for the Study of Fertility·L A OkumuP Lonergan
Feb 2, 2008·Reproduction : the Official Journal of the Society for the Study of Fertility·Thomas E SpencerEckhard Wolf
Nov 19, 2013·Tropical Animal Health and Production·Thaisa Campos MarquesRoberto Sartori
Dec 2, 2014·Journal of Animal Science and Biotechnology·Rodney D GeisertDaniel J Mathew
Aug 1, 2008·Animal : an International Journal of Animal Bioscience·D Morris, M Diskin
Jul 16, 2010·The Journal of Reproduction and Development·Keith L Macmillan
Jan 1, 2007·Pakistan Journal of Biological Sciences : PJBS·N Shams-Esfandabadi, A Shirazi
Jul 15, 2007·Pakistan Journal of Biological Sciences : PJBS·H Ghasemzadeh-NavaP Tajik
Jun 9, 2009·Animal Reproduction Science·G A BridgesM L Day
Aug 16, 2008·Domestic Animal Endocrinology·M A VelazquezD C Wathes
Nov 3, 2007·Reproduction in Domestic Animals = Zuchthygiene·M P GreenM G Hunter
Mar 25, 2009·Reproduction in Domestic Animals = Zuchthygiene·H Karami ShabankarehM Ganjali
Sep 26, 2006·Animal Reproduction Science·James F Roche
Apr 11, 2017·Molecular Reproduction and Development·Rodney D GeisertThomas E Spencer
Aug 19, 2007·Journal of Dairy Science·E Castañeda-GutiérrezD E Bauman
Jan 1, 2016·Reproduction, Fertility, and Development·T E SpencerP Lonergan
Aug 8, 2018·Reproduction in Domestic Animals = Zuchthygiene·Konomi HoriKoumei Shirasuna
Mar 8, 2012·Reproduction, Fertility, and Development·R S Bisinotto, J E P Santos

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