Effects of equine chorionic gonadotropin on follicle development and pregnancy rates in suckled beef cows with or without calf removal.

@article{Marquezini2013EffectsOE,
  title={Effects of equine chorionic gonadotropin on follicle development and pregnancy rates in suckled beef cows with or without calf removal.},
  author={Guilherme Marquezini and Vitor R. G. Mercadante and Kristine C. Olson and John Jaeger and George A Perry and Jeffrey S. Stevenson and G C Lamb},
  journal={Journal of animal science},
  year={2013},
  volume={91 3},
  pages={
          1216-24
        }
}
Two experiments were conducted to evaluate the effects of eCG, temporary 72-h calf removal (CR), or both on dominant follicle (DF) diameter and pregnancy rates (PR) in suckled beef cows. For Exp. 1, we hypothesized that CR, eCG, or both at PGF2α administration concomitant with synchronization of ovulation protocol would increase DF diameter and alter patterns of LH, estradiol (E), and progesterone (P4) secretion. Thirty-five multiparous, suckled crossbred beef cows were assigned randomly to a 2… CONTINUE READING

Citations

Publications citing this paper.
SHOWING 1-10 OF 11 CITATIONS

References

Publications referenced by this paper.
SHOWING 1-10 OF 27 REFERENCES

Effect of presynchronization with human chorionic gonadotropin or gonadotropin - releasing hormone 7 days before resynchronization of ovulation on fertility in lactating dairy cows

  • M. B. Renfree, R. V. Short
  • J . Dairy Sci .
  • 2012

Effects of progesterone presynchronization and eCG on pregnancy rates to GnRH - based , timed - AI in beef cattle

  • W. C. Burrell, L. D. Shipp
  • Theriogenology
  • 2009

Effect of preovulatory concentrations of estradiol and initiation of standing estrus on uterine pH in beef cows

  • R. A. Satrapa
  • Domest . Anim . Endocrinol .
  • 2008

Effects of insemination – ovulation interval on fertilization rates and embryo characteristics in dairy cattle

  • L. S. Leshin
  • Theriogenology
  • 2006

The effect of eCG or estradiol at or after norgestomet removal on follicular dynamics , estrus and ovulation in early post - partum beef cows nursing calves

  • T. E. Kiser
  • Theriogenology
  • 2004

Similar Papers

Loading similar papers…