It is tremendously stallion-dependent. Typically fresh semen (not cooled) should be used within 4 hours after collection; cooled semen should be used within 48 hours after collection.
As I say, there are tremendous stallion variables. Some stallions have sperm that is dead within minutes after collection if not extended, while others could last 24 hours without cooling or extension. The same applies for cooled semen. Correct collection and preparation is also essential for ensuring prolonged survival of cooled semen.
Please note that opinions, product information, advice or suggestions posted on this bulletin board are not necessarily those of the management at Equine-Reproduction.com nor does the maintenance of the post position indicate an implicit or any endorsement of that information, opinion or product.
Further, although we have the greatest respect for the posters offering assistance here, you are advised to seek a consultation with your veterinarian prior to using information obtained from this board if it is of a veterinary nature.Proud to be sponsored and supported by: