Monday, February 29, 2016

Veterinary Management of Equine Reproduction: Modifying a Mare's Estrous Cycle

You can use artificial light and pharmaceuticals to change the mare's estrous cycle. You can use these methods  together or separate. By altering the cycle, you can make mares cycle together, making breeding time easier. You can also change when the breeding season begins for your mare with lighting techniques. By combinging lighting techniques with pharmaceuticals you are actually enhancing the effectiveness of both methods which work more ffectively in tandem. By using the bodie's natural reaction to light, you can induce the horse's body into ovulating earlier in the year. This could help breeders maintain the January 1 birthday for horses. By increasing the horse's lit hours to 16, you can stir her cycle into stimulating. You should start by December 15 if you want Feb-March ovulations in your mare. It will take 60-90 days to take effect. Consistent lighting must be provided and timers are effective. This can be relatively easy to put together. 

As the lighting must be present without shadows, it should be maintained with a 200-watt incandescent light source for a 12x12 stall. Extra care to warm horses needs to be taken into consideration for costs as well. However, the leading edge on yearly foal crops may win out with early purchases or sales. 2 foot-candles of light are considered the minimum. This can also be used to modify early foaling mare's estrous cycles. Gestation is reduced by as much as 10 days and foals are healthy with normal weight and sizes. Mares enhanced by light also cycle better after they foal.

Using Pharmaceuticles to make the mare's more likely to concieve makes them lucrative. Foals can go for a lot of money, and early foals can make sales before other breeders have a chance to sell. You can get mares to cycle together better using lighting and pharmeuticals. Medications can also be used to correct imbalances in the mare which may interfere with breeding or timing.

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