Think you mean extender Barbara, lol. With frozen semen it is crucial that the mare is below a certain age and without any obvious problems. It is also very important to inseminate at the right time, just at ovulation is IT and you need a very experienced vet for the many necessary scans to see how the follicle is doing. We do very well with our vet, no complaints.
Thats what I meant Barbara. I have done a lot of research, and 'swimmers' don't necessarily get mares in foal, whether natural, chilled or frozen! A scientist in Belgium did a study on one of my boys semen and although they were alive and kicking they were missing a certain factor that made them viable. So in that instance it proved that mobility and motility were of no consequence! Sometimes this can be due to the extender, or the stallions semen just doesnt take to chilling or freezing (no one really knows why). On my own rather makeshift studies I have done here at home its amazing the difference in longevity of different boys under different circumstances!
Thanks, Barb. Note to self: don't type while talking on the phone and in a rush or "engage brain before putting mouth (or in this case finger) in gear!
Donna, God didn't make semen with the intention of it being frozen. No discredit to the fertility of the stallion who don't freeze.