Comparison of an Ovsynch Protocol with a PGF2α Treatment Based on Rectal Palpation

Authors

  • M. Wittke Clinic for Reproduction, Section of Productive Medicine and Quality Management, Free University of Berlin, Germany
  • M. Drillich Clinic for Reproduction, Section of Productive Medicine and Quality Management, Free University of Berlin, Germany
  • B.-A Tenhagen Clinic for Reproduction, Section of Productive Medicine and Quality Management, Free University of Berlin, Germany
  • W. Heuwieser Clinic for Reproduction, Section of Productive Medicine and Quality Management, Free University of Berlin, Germany

DOI:

https://doi.org/10.21423/aabppro20015283

Keywords:

Systematic breeding programs, artificial insemination, PGF2α, corpus luteum, rectal palpation

Abstract

Systematic breeding programs are used to induce estrus, or may even allow timed artificial insemination (AI) in dairy cows. We conducted a trial in a commercial dairy herd to compare an Ovsynch protocol to a protocol using Prostaglandin F2α (PGF2α) in cows with a corpus luteum (C.L.) diagnosed by rectal palpation. Further objectives of the study were to analyze the timing of ovulation in the Ovsynch group by ultrasound, and effect of the stage of estrus cycle at the start of an Ovsynch protocol on the conception rate using timed AI.

Cover image of the 34th Conference Proceedings: Four men on horseback lead a single cow through a pen. Yellow background.

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Published

2001-09-13

Issue

2001

Section

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