Advanced Caprine Reproduction Methods & Techniques

Teresa Wade - BIO-Genics, LTD

Unit Objective

After completion of this module of instruction the producer should be able to apply reproductive terminology while communicating with reproduction specialists. The producer should be able to identify signs of estrus and factors that can stimulate a doe to come into estrus. The produce should be able to evaluate the advances of reproduction technology and select and use the ones that are appropriate for their goat production program. The producer should be able to score a minimum of 85% on the module test.

Specific Objectives

After completion of this instructional module the producer should be able to:

  1. Match reproductive terms with the correct definition.
  2. Identify methods a producer may use to bring a doe into estrus.
  3. Select the months of the year when the buck’s semen is of optimum quality.
  4. Explain how bucks semen is evaluated.
  5. Identify the volume (in cc) of semen contained in a straw of semen.
  6. Select items that may be imprinted on a straw of buck semen when processed.
  7. Identify products that are added to semen during processing.
  8. Identify the temperature of the liquid nitrogen bath in which semen is stored.
  9. Identify the percentage of semen viability loss during the frozen process.
  10. Select the appropriate water bath temperature for thawing semen.
  11. State the meaning of seasonally polyestrous.
  12. Identify factors that affect a doe’s sensory stimulation.
  13. Identify how often a doe will cycle during estrus.
  14. Select the number of hours a doe will remain in estrus.
  15. Identify correct statements regarding light therapy for inducing off-season estrus.
  16. Identify correct statements regarding progestagen treatments.
  17. Identify correct statements regarding using prostaglandin treatments.
  18. Identify correct statements regarding identifying estrus in the doe for purposes of artificial insemination.
  19. Identify the three primary factors that make a successful artificial insemination program.
  20. Distinguish between cervical versus trans-cervical artificial insemination.
  21. Identify correct statements regarding proper semen deposition in the doe’s reproductive tract.
  22. Match artificial insemination equipment with a description and/or use of the equipment.
  23. Distinguish between correct and incorrect statements regarding laparoscopic/intra-uterine artificial insemination.
  24. Distinguish between correct and incorrect statements related to liquid nitrogen storage tanks.
  25. Distinguish between correct and incorrect statements related to super ovulation and embryo transfer.
  26. Distinguish between correct and incorrect statements related to embryo flushing and embryo transfer.
  27. Identify ways/means of determining if a doe is pregnant.
  28. Evaluate advancements in reproduction technology and select the advancement for use within the individual goat farm.

Module Contents

  • Introduction
  • Semen Collection and Cryogenic Preservation
    • Care of the buck
    • Semen collection and evaluation
    • Freezing
    • Thawing and post-thaw evaluation
    • Postmortem semen extraction
  • Bringing a Doe into Estrus
    • Light therapy for inducing off-season estrous
    • Utilizing the buck effect for inducing estrus
    • Progestagen treatments
    • MGA feed supplement
    • Prostaglandin treatment
  • Estrus in the Doe for Purposes of Artificial Insemination
  • Artificial Insemination (AI)
    • Cervical vs trans-cervical artificial insemination
    • Proper semen deposition in the doe’s reproductive tract
    • Artificial insemination equipment and supplies
    • Laparoscopic/intra-uterine artificial insemination
    • In vitro fertilization (IVF) and in vitro maturation (IVM)
  • Liquid Nitrogen Storage Tanks (AI)