assisted reproduction in horses
TRANSCRIPT
Non-surgical MethodsEmbryo recovery and transferArtifical inseminationTransvaginal oocyte recoveryPregnancy diagnosis
ASSISTED REPRODUCTION INHORSES.
Reproductive Physiology and Embryology
Cattle AdvantagesEquine Advantages
Structure of Industries
What can be learned?
WHAT CAN WE LEARN FROM CATTLE?
Similarities
Differences Differences
Similarities
Differences
- Timing andcourse
- Blastocyst- gets acapsule- Expands faster- IVF is problematic
- Efficacy of superovulation- Efficacy of in vitrofertilization- Injectioncryopreservation ofembryos and sperm- Fewer sperm needed
- Higher toleranceof embryos todonor.recipientasynchrony-Efficacy ofintracytoplasmicsperm injection
- Neither is monlithic- One sex offspring will bemore valuable
Cattle- 1 or 2 cows- donorobjective- to get as manyoffspring as possible perdonor
- Use ofvivo-matured oocytes- Availability of oldermares- Follwing eachmare's reproductivestatus.
- Available sexedsemen, slaughterhouseovaries- More efficientnonsurgical recovery ofmorulae/early blastocysts- Low costs for beed andcare
- Use of bovine oocytes for ICSI ofequine sperm to test fertility - Cloning and somatic cell nucleartransfer
Horses- dozen of donor maresto get 1 or 2 additionaloffspring per donor per year
Differences
- Higher efficacy of super-ovulation protocols-Higher success rates fromcryopressing embryos