How many doses should I ship per cycle?
Most of our stallion owners provide 2 doses per cycle when shipping frozen semen. This allows for the practitioner to use a timed insemination protocol if appropriate. Some owners ship only one dose per cycle which then requires that the mare be managed very aggressively to ensure that insemination occurs within the period of 12 hours prior to or no more than 6 hours after ovulation. Either approach works well provided that the interval between insemination and ovulation is within the critical time period. There are a few important factors to consider when making this decision. • If too few doses are sent there is a possibility that insemination occurs too soon in relation to ovulation for a mare that holds on to a follicle longer than anticipated or doesn’t respond to an ovulatory agent. In this case a second shipment may be required to allow for proper timing of insemination. This is why SBS recommends that when only one dose of semen is available, mares are examined at 6 hour interv
