Effect of different doses of equine chorionic gonadotropin on follicular and luteal dynamics and P/AI of high-producing Holstein cows.

@article{Ferreira2013EffectOD,
  title={Effect of different doses of equine chorionic gonadotropin on follicular and luteal dynamics and P/AI of high-producing Holstein cows.},
  author={Roberta Machado Ferreira and Henderson Ayres and Jos{\'e} N{\'e}lio de Sousa Sales and Amauri H. Souza and Carlos Alberto Rodrigues and Pietro Sampaio Baruselli},
  journal={Animal reproduction science},
  year={2013},
  volume={140 1-2},
  pages={26-33}
}
The hypotheses of this study were (1) that the administration of 400IU eCG in a TAI protocol would increase ovarian follicular growth and diameter of the largest follicle (LF), volume of the CL, and produce an earlier rise on serum concentration of progesterone (P4) to ultimately improve P/AI compared to non-treated high-producing Holstein cows; and (2) that 600IU of eCG could enhance any potential effects of a greater gonadotropin treatment upon follicular and luteal size and function… CONTINUE READING

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