- The gestation period for donkeys is 11- 14 months with 12 months being average.
- I believe that Emma was born in July of 2010, jennys start to come into heat between 7 and 12 months old, with 12 months again being the average.
- Emma came to my house on Aug. 31st
- I tried to find out from the previous owner when she had been bred but, I got no more then a drunken shrug and the mumbled reply that he'd seen the jack breed her once or twice.
- My best guess is that she was bred sometime in August, if she started to have heat cycles when she was 12 months old. If she came into heat earlier than that though....
I have talked with a specialist at Cornell and his advice was, "if she were my donkey I would leave her be and hope for the best". He was at least somewhat reassuring as he told me that a donkey's pelvis is much better designed for birthing than a horse and it is more common for young donkeys to successfully carry a healthy foal to term then it is for horses. The two biggest risks are dystocia and foal rejection.
I could have an ultrasound done but, I am not sure it would be very useful at this stage other than to provide me a little peace of mind that she is not carrying twins. The blood test I had done tests for estrogen sulfate which is produced by the placenta. Her levels were extremely high, indicating that there is an active placenta with a viable fetus. Too bad it can't tell me when that fetus might decide to enter the world.