Only the stud farm would require a culture. It would be silly and unnecessarily onerous for a boarding farm to require one.
HOWEVER, many stud farms now require the clean culture be taking during the same heat that the mare is being bred - or at least the culture can be no more than 30 days old. So while you might have sent a clean one with the mare, it might not have been sufficient.
Regumate
Moderators: Roguelet, hpkingjr, WaveMaster, madelyn
When I did my repro course, and worked on several different stud farms, the general rule of thumb was as follows...
If the mare was to be bred on foal heat, she recieved a uterine flush before breeding (no antibiotics, just a saline lavage to clean out post foaling debris that sometimes hangs around). An older mare would also be flushed after breeding as their uterus tends to lack the tone required to "clean" the post breeding sludge after foaling. Often oxytocin would be given post breed (with or
without a flush) on older mares.
Normally we let the foal heat pass, and would cycle them back with a shot of Lutalyse (1cc IM, maybe 1 in 25 mares would react). If they didn't catch, they were cultured and flushed and cycled again.
In a "normal mare" if she didn't catch first go around, she would be cultrued, flushed, and cycled back. In breeding 600+ mares in 2 seasons to 8 stallions, we maybe had a dozen total go home open. That's not to say they all carried to term or had live foals, but conception rates were very good with that method.
Also, HCG (Human chorionic gonadotropin/ Chorulon) was rarely given, usually only to mares we shipped semen in for as it isn't always reliable, is expensive, requires extensive vet work due to it's relatively precise effective range on the follicle (30-35mm), and can cause an antibody to from in the mare that will actually cause a decreas in ovualtion. It can also cause a delay in the mare having another heat cyle if not effective first go. Deslorelin is a synthetic GnRH that can be an alternative (mostly Lutenizing Hormone) and does not create antibodies.
Regumate is commonly used to induce a normal cyle during transition phase in early/late spring and works best on mares in the later stages of transition. Usually give for 9-14 days, on the last day of regumate, give the lutalyse. The mare should show heat within 1-3 days, and ovulate within 5-11.
It is also usually given to mares who abort in the first 3 months of gestation when the pacenta forms and takes over progesterone production. Very common time to slip a pregnancy, especially in older mares.
If the mare was to be bred on foal heat, she recieved a uterine flush before breeding (no antibiotics, just a saline lavage to clean out post foaling debris that sometimes hangs around). An older mare would also be flushed after breeding as their uterus tends to lack the tone required to "clean" the post breeding sludge after foaling. Often oxytocin would be given post breed (with or
without a flush) on older mares.
Normally we let the foal heat pass, and would cycle them back with a shot of Lutalyse (1cc IM, maybe 1 in 25 mares would react). If they didn't catch, they were cultured and flushed and cycled again.
In a "normal mare" if she didn't catch first go around, she would be cultrued, flushed, and cycled back. In breeding 600+ mares in 2 seasons to 8 stallions, we maybe had a dozen total go home open. That's not to say they all carried to term or had live foals, but conception rates were very good with that method.
Also, HCG (Human chorionic gonadotropin/ Chorulon) was rarely given, usually only to mares we shipped semen in for as it isn't always reliable, is expensive, requires extensive vet work due to it's relatively precise effective range on the follicle (30-35mm), and can cause an antibody to from in the mare that will actually cause a decreas in ovualtion. It can also cause a delay in the mare having another heat cyle if not effective first go. Deslorelin is a synthetic GnRH that can be an alternative (mostly Lutenizing Hormone) and does not create antibodies.
Regumate is commonly used to induce a normal cyle during transition phase in early/late spring and works best on mares in the later stages of transition. Usually give for 9-14 days, on the last day of regumate, give the lutalyse. The mare should show heat within 1-3 days, and ovulate within 5-11.
It is also usually given to mares who abort in the first 3 months of gestation when the pacenta forms and takes over progesterone production. Very common time to slip a pregnancy, especially in older mares.
A woman needs 2 animals in her life-the horse of her dreams, and a jackass to pay for it!