IVF attrition is the rate at which your reproductive ... This is the first drop-off in the attrition funnel. For example, even if 10 eggs are retrieved, there may only be eight mature.

At 0 hours, IVF efficiency (fertilized zygotes vs. total number of eggs) was significantly greater with sperm that were initially attached to suLeX (at 53%) than a control with no oviduct ...