PMID: 11906932Mar 22, 2002Paper

Changes in concentrations of follicular fluid factors during follicle selection in mares

Biology of Reproduction
F X Donadeu, O J Ginther

Abstract

The temporal relationships in the changes in concentrations of follicular fluid factors during follicle selection were characterized in mares. All follicles > or =5 mm were ablated 10 days after ovulation, followed by follicular fluid collection from the three largest follicles (F1, F2, and F3) when F1 of the new wave reached a diameter of 8.0-11.9, 12.0-15.9, 16.0-19.9, 20.0-23.9, 24.0-27.9, or 28.0-31.9 mm (n = 4-8 mares/range). Diameter deviation between F1 and F2 began during the 20.0- to 23.9-mm range, as indicated by a greater difference in diameter between the two follicles at the 24.0- to 27.9-mm range than at the 20.0- to 23.9-mm range. Androstenedione concentrations increased in F1, F2, and F3 between the 16.0- to 19.9- and 20.0- to 23.9-mm ranges. In contrast, estradiol, free insulin-like growth factor (IGF)-1, activin-A, and inhibin-A concentrations increased only in F1 beginning at the 16.0- to 19.9-mm range. As a result, the concentrations of all four factors were higher in F1 than in F2 and F3 at all the later ranges, including the 20.0- to 23.9-mm range (beginning of diameter deviation). Concentrations of progesterone differentially increased in F1, concentrations of androstenedione and IGF-binding protein (IGFB...Continue Reading

References

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Sep 27, 2001·Theriogenology·F Shidaifat

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Citations

Jun 24, 2003·Animal Reproduction Science·O J GintherD R Bergfelt
Aug 28, 2010·Reproduction, Fertility, and Development·C M ChecuraO J Ginther
Aug 24, 2002·Biology of Reproduction·O J GintherD R Bergfelt
Aug 27, 2005·Reproduction : the Official Journal of the Society for the Study of Fertility·O J GintherR A Pierson
Aug 31, 2006·Reproduction : the Official Journal of the Society for the Study of Fertility·M A Beg, O J Ginther
Aug 31, 2004·Reproduction : the Official Journal of the Society for the Study of Fertility·E D WatsonD G Armstrong
Aug 9, 2008·Reproduction : the Official Journal of the Society for the Study of Fertility·L K DoyleF X Donadeu
Jul 3, 2013·Reproduction : the Official Journal of the Society for the Study of Fertility·S N SchauerF X Donadeu
Jan 9, 2007·Animal Reproduction Science·F X Donadeu, E D Watson
Oct 29, 2008·Reproduction in Domestic Animals = Zuchthygiene·C M ChecuraO J Ginther
Nov 11, 2008·Reproduction in Domestic Animals = Zuchthygiene·M A R SiddiquiO J Ginther
Jul 25, 2008·Reproduction in Domestic Animals = Zuchthygiene·F X Donadeu, H G Pedersen
Jan 12, 2007·Reproduction in Domestic Animals = Zuchthygiene·S PanasophonkulS Sirivaidyapong
Sep 27, 2006·Animal Reproduction Science·O J GintherM A Beg
Nov 29, 2005·Animal Reproduction Science·O J GintherM A Beg
Dec 4, 2012·Theriogenology·S N SchauerF X Donadeu
Sep 26, 2014·Biology of Reproduction·F Xavier DonadeuNadine Gérard

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