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JCS Veterinary Reproductive Services provides services in equine medicine. We provide routine and specialty services in equine reproduction with emphasis on mare and stallion management as well as neonatology.

Whether you breed thoroughbreds or warm bloods we can provide diagnostics and therapies for problem breeders and can suggest managerial strategies to help increase the reproductive efficiency of your breeding operation regardless of size.

We are at the forefront of all the assisted reproductive techniques including embryo transfer and artificial insemination. As part of our service we are distributors of a few but select number of European stallions.

Normal Stallion sperm

Sperm with mid-piece defect

Sperm which has been exposed to extender with too much water, causing tail coiling and reduced viability.

Stallion on a phantom or artificial vagina

Breeding soundness evaluations of stallions (BSE) - Stallions regardless of their use should have a BSE performed. Whether it is for a pre-purchase, prior to the breeding season, to breed by artificial insemination (transported) or frozen, it is not wise to wait until problems arise with your own mares or with client mares. Two ejaculates collected in the same day very often will provide valuable information regarding the potential fertility of the stallion.

Stallion evaluation and management - Frequency of collection, type of extenders and behavioral problems can affect the ability to use a stallion. At VRS we can do a thorough evaluation of your stallion and provide you with recommendations or guidelines to improve or maximize individual stallion s fertility. It is not uncommon to have some stallions with great genetic merit and poor semen that can be managed properly to achieve a good pregnancy rate . On the other hand it is common to have stallions with apparent good semen that have sub-optimal pregnancy rates. Proper diagnostics and management of these stallions can significantly improve their fertility.

Management of old and/or sub-fertile stallions - As stallions age their semen quality tends to deteriorate. We can help you manage those stallions in order to prolong their fertile life.

Evaluation of semen and shipping of fresh cooled semen - When you decide to offer your stallion in a cooled shipping program, it is important to optimize factors such as type of extender, shipping container and optimal frequency of collection. At VRS we can help you maximize the semen quality to avoid complaints from mare owners. Remember you are not only competing with genetics but service and semen quality.

Evaluation for freezing, freezing storage and distribution of frozen semen - Why pay expensive insurance premiums if what you want is insure the genetics? Want to be able to breed while your stallion is in competition? Want to market your stallion overseas? At VRS Dr. Samper is a world authority on stallion evaluation and semen freezing and can provide a variety of freezing semen procedures as well as evaluation of frozen semen that has been processed by others. Always keep in mind that freezing semen can be done by many and preserving the fertility of sperm through freezing is only done by few.

Re-training stallions with behavioral problems - Aggressive or hard to control stallions can be dangerous and often will ruin their life as a breeding stallions. We can help you start your stallion or deal with your already difficult to control stallion.

Training stallions to collect with an artificial vagina (on the ground or on a phantom) - Every stallion regardless of age or previous breeding experiences can be trained to collect artificially. Patience and experience are hallmarks of what makes the staff at VRS able to help you train your stallion.

Importation of fresh or frozen semen - We can arrange importation for particular stallions. In addition to our roster of stallions, through our contacts world wide we can inquire and arrange importation of particular stallions. Please contact us for specific needs. DO NOT BUY FROZEN SEMEN WITHOUT INQUIRING ABOUT THE STALLION'S FERTILITY WITH FROZEN SEMEN. This can save you a lot of money and headaches.

Endosopic view of the bifurcation in the uterus of a mare in heat.

Endoscopic view of the ovulatory papilla, site where sperm are stored

Photograph of an 8 day equine embryo

A foal still wrapped in the placenta. We monitor mares that are close to foaling 24hrs a day in order to minimize the possibility of complications.

Mare breeding soundness evaluation - Age takes a toll on the fertility of mares, regardless of how many foals she has had. With proper diagnostics, management and communication we can help you decide what the best option for your mare to try to maximize the chances of pregnancy.

Artificial insemination with fresh, cooled or frozen semen using conventional techniques as well as Deep uterine or endoscopic (fallopian) insemination - Current research has shown that semen quality and timing of insemination are the most important factors in determining pregnancy. In order to reduce sperm transport time and sperm numbers insemination close to the uterotubal junction has been successfully performed using an endoscope or a flexible pipette. Maximize the use of very valuable semen using these techniques.

Embryo transfer, embryo freezing, shipping of embryos - If your mare is too old, unable to maintain a pregnancy or needs to stay in competition ET is one of the most affordable techniques. We have years of experience in these technologies and are happy to discuss our different package options. We can collect and ship the embryo, transfer it into your own recipient or freeze it for later use.

Twin embryo reduction early as well as advanced - Using different approaches, we are able to reduce twin pregnancies as early as 13-14 days up to 150-180 days.

Mare with a triplet pregnancy - Multiple pregnancies are undesirable in the horse because most mares will loose the foals 2-3 months before their due date.

Management of high risk pregnancy mares - Mare with a history of delivering early or premature foals, consistently having problems foaling or having weak foals that die within the first few days of life, she should be considered a high risk pregnant mare. To maximize the chances of having a normal delivery the foaling should be induced and attended by a professional. At VRS we can help you and your mare carry the pregnancy and have a “normal” delivery. We have alarm systems and staff that will monitor your mare around the clock.

Diagnosis and treatment of PROBLEM MARES - This is perhaps the most challenging and frustrating aspect of equine reproduction. There are many factors that contribute to the sub-fertility of a mare. To obtain results hard work, commitment form vet and owner, constant adherence to scientific principles and management techniques will maximize the possibility of conception and maintenance of pregnancy in problem mares.