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Related Experiment Videos

Bülent Bülbül1, Cemal Dayanıklı2, Ebru Şengül2

  • 1Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Dokuz Eylül University, İzmir, Turkey.

Animal Science Journal = Nihon Chikusan Gakkaiho
|August 1, 2024
PubMed
Summary

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Isoxsuprine HCl did not improve sheep fertility during cervical artificial insemination (AI). Laparoscopic AI showed higher success rates than cervical AI, especially with longer semen storage.

Area of Science:

  • Veterinary Science
  • Reproductive Biology
  • Animal Science

Background:

  • Improving sheep fertility through artificial insemination (AI) is crucial for efficient livestock management.
  • Cervical AI in sheep presents challenges to achieving optimal fertility rates.
  • Understanding the impact of semen storage duration and insemination techniques is vital.

Purpose of the Study:

  • To evaluate the efficacy of isoxsuprine hydrochloride (HCl) in enhancing cervical AI success in sheep.
  • To compare the fertility outcomes of chilled semen used in cervical AI versus laparoscopic AI at different storage durations.
  • To determine optimal semen handling and insemination protocols for sheep AI.

Main Methods:

  • Semen was collected from rams, diluted, and chilled to 4°C.
Keywords:
cervical artificial inseminationisoxsuprine HCllaparoscopic artificial inseminationsemen storagesheep

Related Experiment Videos

  • Sheep underwent cervical AI or laparoscopic AI using semen stored for 8 or 24 hours.
  • A subset of sheep received isoxsuprine HCl intramuscularly before cervical AI.

    • Main Results:

    • Isoxsuprine HCl administration did not significantly affect cervical transit or fertility rates.
    • Fertility rates were influenced by semen storage duration.
    • Laparoscopic AI demonstrated superior fertility compared to cervical AI.
    • Optimal fertility for cervical AI required semen use within 8 hours of chilling; laparoscopic AI allowed up to 24 hours.

    Conclusions:

    • Isoxsuprine HCl is not effective in improving fertility for cervical AI in sheep.
    • Laparoscopic AI offers a more robust method for achieving higher fertility rates with extended chilled semen viability.
    • Shorter storage durations (under 8 hours) are recommended for cervical AI, while laparoscopic AI can accommodate up to 24 hours of chilled semen storage.