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Featured News: Ovum Pickup Available at SBS Veterinary Services Beginning in April 2015

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February 26, 2015

SBS - VS_mare and foal In April 2015, Dr. Scofield and the staff at SBS Veterinary Services are pleased to announce the addition of Trans-Vaginal Oocyte Aspiration (TVA) as a service offered at their clinic in Chesapeake City, Maryland. TVA, also known as Oocyte Pickup, shows promise in producing foals from the most reproductively challenging mares and stallions with limited frozen semen reserves. As Dr. Young explained in last months Blog article, Ovum Pickup in the Mare, TVA and Intra-cytoplasmic Sperm Injection (ICSI) offer the latest in assisted reproductive technology to help produce foals.

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Featured Blog: Biofilms in Mare Reproduction

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February 27, 2015

A biofilm has been proposed to have a significant role in chronic infections in the horse. It has been suggested for over a decade that chronic uterine infections resistant to antimicrobials may be due to biofilm production. The involvement of a biofilm in cases of bacterial endometritis has not been clearly elucidated, but many reproductive specialists suspect a biofilm plays a significant role in infectious endometritis. In this article Dr. Ryan Ferris, a board certified theriogenologist from Colorado State University, explains the lifestyles of bacteria, how a biofilm is formed, how they protect bacteria and their implications on equine reproduction.

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Featured Question

Is frozen semen less fertile than fresh or cooled semen?

Fertility of frozen semen is highly dependent upon the stallion. In one of the few published trials in which the fertility of fresh, cooled and frozen semen was evaluated from the same stallion, the fertility of cooled semen was less than fresh and the fertility of frozen semen was slightly less than cooled semen. However, in other studies based on a large number of inseminations, the fertility of cooled and frozen semen was found to be similar and both were slightly less than fresh. In 2010, for three breeding farms in MD managing a combined total of 36 stallions shipping either cooled or frozen semen to a total of 648 mares, the first cycle pregnancy rate was 63% for cooled semen and 60% for frozen semen. The end of season pregnancy rate was 79% for cooled semen and 76% for frozen semen. Demonstrating that in the general population of horse breeders comparable results can be achieved with cooled and frozen semen.

See also:

AI Using Cooled and Frozen Semen

Effect of Number and Timing of Equine Frozen Semen Inseminations on Fertility

How Long Does Frozen Semen Last?

Reproductive Efficiency Reported by SBS Affiliate Labs

The Pros and Cons of Equine Frozen Semen


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Stallion_Aspen Way Gala Night“Thank goodness for frozen semen! Aspen Way Gala Night had undergone lifesaving colic surgery and would have missed the breeding season..."

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