We spent the morning preparing our recipient ewes for the embryo transfer program. We replaced any missing eartags and numbered the plain coloured tags. It is almost impossible to write anything that we maybe able to read again on the moving ear of a sheep but ever optimistic we pressed on. Each sheep received a mineral drench and then we inserted the cidrs which is the first step in making all the ewes cycle at the same time so when the transfer day arrives they are syncrinised to receive the embryo at its exact point of maturity. Pretty amazing technology. It has a higher sucess rate than human IVF mainly because the animals involved don't have any existing fertility problems. We were preparing 100 recips but when the last sheep was done we still had a cidr left in the bag - someone slipped through the net (or we stuffed up). The next step will be removing the cidrs and giving a hormone injection.
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